Delphi shellexecute wait. ProcessMessages to handle the messages.

Delphi shellexecute wait 49? return value of ShellExecute() should give you window handle. Use CreateProcess instead. Delphi-PRAXiS Programmierung allgemein Win32/Win64 API (native code) Delphi ShellExecute, and Wait!! Thema durchsuchen. Please note, that I don't want to wait for App(N-1) to finish and then start AppN. Types unit). I wonder whether it really needs to wait at all. but I'm looking to be able to use ShellExecuteEx to wait for the executed program in my script. Caption := 'WM_LBUTTONDOWN'; A Delphi VCL app has at least 2 HWNDs initially by default, the TApplication window and the MainForm window. I am able to print text file script from Notepad or Delphi calls ShellExecute('printto',. If you pass a pdf file as parameter to PrintUsingShell it should print if a Acrobat reader program has been I've been trying to use ShellExecute from within a Delphi app to open Mysql and run a script. pdf to a HP Laser Jet 4 with IP address 192. In Delphi system() doesn't exist so I'm using ShellExecute() to create a new process, but the new process comes up in a new console window. And obviously close both handles when you are done with them. Handle, 'open', 'cmd. Is there some way that I can make it inherit the Can someone show me how to use "IShellExecuteHook. (opened for editing from Delphi form by shellexecute) can be saved in the message- when the user edits and saves his changes. Terminate should get it done. A good interval is // one-tenth of the wait hint but not less than 1 second // and not more than 10 seconds. CreateProcess allows you to wait for process, to get its exit code, to read its console output and many more. In the previous example we waited until the program exited. TWinWindowHandle stores the HWND handle in its Wnd property. Delphi 7 - ShellExecute command not working in situations. 1 - Place an ampersand & in between two command to make command2 execute right after command1. ApplicationEvents1Message(var Msg: tagMSG; var Handled: Boolean); begin if Msg. Back to list of tips; DelphiDabbler. You need to check result code for msiexec. Adobe is at fault instead. ShellExecute( MainForm. – Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company display the output in your app instead of showing the console. EXE to . By starting or executing a specified file or action linked to the default action for the specified file or application, ShellExecute is a Windows ShellExecute(Form1. When you call it it will create a process and wait for it to finish: In your case, you check only result code of ShellExecute, but not msiexec. That causes your execution to wait for Windows to finish before it returns after creating the process. exe so you should add that to the command line. Alternatively call bds with the filename as the first parameter. Cancel will allow proc. I tryed with ShellExecuteEx with the nescessary options set but this steals the focus anyhow. 168. Create( procedure var tasks : TArray<task>; begin // synchronized action to the main thread // before the work begins TThread. Shellexecute and Wait and keep console-window open? Hot Network I am using ShellExecute to run external application How can i tell when the external application ends ? Here my code theProgram := 'MySql. I need to run an exe from within my program, but my program must stop and wait for the . How can I make my application wait until the other program has finished before it continues executing? The other program converts file data and I don't want to proceed with my save procedure untill the data conversion program has finished doing its thing. script a long-running thing, or is it something where it would be okay to launch it and wait for it to Writeln('Started'); ShellExecute(0, 'open', 'another. Thanks. @SimonWpgnLewis You say that it works when your application is in the same folder than quake but not other vise That is due the fact that when you are using ShellExecute to start another application that application working folder is set to the same working folder of your own application. exe -u user1 -ppassword dbName > TheOutputFile. Obviously CreateProcess returns you a process handle on which you The docs say ShellExecute returns an application instance handle, and this page seems to be talking about converting that to a process ID. exe and use the Task Scheduler API instead. To get the actual HWND handle, you would need to Here are a bunch of routines I have written in my libary. Improve this answer. cbSize := SizeOf(sei); sei. SyncObjs. ) shellapi function. ShellExecute to run a process under standard user from my elevated process, as described in Raymond Chen's article. Let's see the differences between them. ShellExecute is a function of the Windows API. ShellExecute also does not specify I use ShellExecute to open links from my program. Message = WM_LBUTTONDOWN then begin Self. For instance, 00001000 or 00000010 = 00001010. Jump to: navigation, search. exe starts; you read in output. In Delphi, If in Delphi you used ShellExecute for documents like Word documents or URLs, have a look at the open* (OpenURL etc) functions in lclintf (see the Alternatives section lower down this page). But you really must learn the basics of bitwise operators, for instance by reading the linked Wikipedia page. The following code works when run on my PC as admin. exe? (Delphi XE2) (Although this question stands alone, I'll giving the user the option to run IE in the context of this SO question I asked at the same time: Detect Chrome as browser associated with html files in Windows) delphi; internet-explorer; I want share the solution made with CreateProcess (thanks to @DavidHeffernan). For example by a call to WaitForSingleObject. hProcess, 0) <> WAIT_OBJECT_0 do begin if Freeze = false then Sleep(1); end For Delphi developers the best thing to do is retire the ShellExecute API call and convert it over to ShellExecuteEX or to create a separate process you should use CreateProcess. In Delphi I've used ShellExecute for years to launch (and optionally wait for) other applications. Is there a way to control the position of those console windows? I would like to launch them centered on screen. This function is linked to the ShellExecute Windows API function. Delphi application form shows instead of hiding at startup. exe', nil, nil, SW_SHOWNORMAL); Clearly, if Adobe Reader starts running then ShellExecute() did its job correctly. That helps everyone, most especially you. ShellExecute is easy to use (high user level). Exec do not mention whether or not the script will wait for the specified process to terminate before the script continues when . Queue(nil, procedure begin SomeForm. Hot Network Questions Joining two lists by matching elements of the two I am currently using ShellExecute() to run another program from my D6 application. This is the standard code every Delphi user seems to use to do what you want (because only @Remy Lebeau and @David Heffernan understand it): Easy 1. This works fine but I want the . However when I run this code in Delphi I get the command window popping up but the command I want to execute doesn't run or even appear in the command window. Here's some code I wrote to validate an IB DB with the command-line gfix application: procedure TdmIBMaintenance. CloseHandle calls ShellExecute launches the command interpreter. com',nil,nil, SW_SHOWNORMAL); but I'm wanting to know if there is a way to automatically post data on the new opened brower window OR auto fill the login data (even in firefox, safari,etc) Thanks-Brad Afaik ShellExecute returns nothing, it does not even confirm if the command line was executed or not. ShellExecute is Delphi Windows API function that is mostly used for launch external applications from our Delphi application. That is not as common nowadays, so it is better to use NULL now and let the OS decide which verb Contribute to eversonturossi/delphi development by creating an account on GitHub. PRG (as in TP Dos' Exec command)? Thankx In Advance. Enabled := False; end); // creation of the tasks doing the I am using IShellDispatch2. ShellExecute is deprecated in favour of ShellExecuteEx, the latter being capable of reporting errors in a sane manner. For ShellExecute, assign these values to the appropriate parameters. Apr 2003 Use ShellExecute which is declared in ShellAPI. ShellExecute(0,nil,'cmd. I have a Delphi application that uses ShellExecute to call a second Delphi Application on a button press. When i execute this command var program_path: string; begin program_path:= c:/myprogram. exe'; EDIT: I just saw "Delphi" in your title. exe', PChar('/select,"' + Fn+'"'), nil, SW_NORMAL); end; and you can call it : SelectFileInExplorer('C:\Windows\notepad. ShellExecute is used to execute shell verbs. Hi I have a function that makes CreateProcess load programs in this case try to upload a file with the path c: /test. You are sending the WM_CLOSE message only to the 1st HWND you find. Task Execution from Delphi using ShellExecute. XXX whose file extension has been changed from . There's no point writing code that doesn't deal with errors. If the application is determined to be a background application, the elevation is placed on the taskbar as a blinking button. You have two options: Call ShellExecuteEx passing a command interpreter to do the work. All about Borland Delphi. WinExec is long deprecated and retained only for backwards compatibility reasons. I made an example to wait on an application to end, but you could easily replace WaitForSingleObject with Notice when MSDN says you might not get a process handle. But you want to create a process. Please imagine that termination could last more time or it And: how can I make my Delphi program wait until the external program is terminated? For just running an external application, or opening a registered file, opening a folder, printing a file, and so on, there are several functions available. exe to do its thing and finish before continuing on. hProcess else begin exit; end; if Wait then while WaitForSingleObject(exInfo. I'm trying to figure out the syntax for a command using the printto verb. Use CreateProcess to create a new process. ; That said, there is no point to use cmd here. You are looking to create But ShellExecuteEx is already starting App2 which depends on the App1, and App2 won't start properly because it needs fully initialized App1. Does anyone have an example of how vba; outlook Delphi: ShellExecuteEx to . Use ShellExecuteEx. So it makes no difference what Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog I'm trying to create a dll with delphi, I set some file attributes but then I want to run a . I want to program this delay using the best practices. 2. about. exe to output with color. website. – Delphi: shellexecute and sw_hide. I would need to wait for Authorize to return before following on. Everything I listed is obviously native, but if Delphi provides access to ShellExecute-like functionality you should be able to adapt the code from the link. I have a commandline application coded in delphi that I need to call from a normal desktop application (also coded in delphi). Then you can read Use CreateProcess and wait on the process handle. This Hello. There are 3 syntaxes for conditional execution. ShellExecute doesn't return enough information for you to do that, so you should try CreateProcess Using Delphi's ShellExecute() with the process inheriting the original console? 3 Reading the output file of ShellExecute() in Delphi 2010? 9 Wait before ShellExecute is carried out? 0 Delphi Get return value when running a DOS command using ShellExec. ShellExecute is not appropriate for spawning a new process because the process is spawned from a DLL loaded from the main application, and ShellExecute require a HWND. But, yes, if the destination app isn't yours (don't have source), and the destination app likes to forcefully show its self, then no you cannot hide it from another app. Handle delays elevation if the application is minimized preventing the secure desktop to steel focus for the consent dialog when the user is doing something else. You're probably checking for the file too soon. Then tack on stdout handling. When an API @william Don't ever call ShellExecute. It can't report errors properly. Event objects (System. htm. exe file, so you should be using CreateProcess() instead, which ShellExecute() is just going to call anyway, so cut out the middleman. Delphi has always been inexplicably poor for calling external command line programs; FreePascal is actually much better at it (as is most everything else). Also, you should probably replace your call to WinExec with one that uses either ShellExecute or createProcess to wait for the spawned process to continue. ShellExecute, and Wait!! Ein Thema von moritz · begonnen am 3. By the way, Zone Alarm reports: [My appname] executable is trying to access "goflagship. text), PWideChar(commandline), nil, That returns a process handle on which you can wait. @Charles, you can use the redirector simbol ">" in a ShellExecute, but using the cmd. exe has started, use the lpCurrentDirectory parameter of CreateProcess to do that. How to ShellExecute a program AND THEN send it command line text. when i click on the 1st button a data or file will show in the RichEdit and when i click on the 2nd button the user will specify what kind of editor or executable file will he/she wants to use in order to view the Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company My problem is, the program is continuing before the external files are actually created. exe', 'cd C:\myapppath\appfolder', nil, SW_Hide); ShellExecute(0, nil, 'cmd. DO NOT pass string literals to CreateProcessW()! MSDN says that it can modify the input string, which would You then wait until the process handle is signaled. Don't fall into the trap of calling Application. ShellExecute returns as soon as the process is created. It seems you just need to dynamically allocate the names rather than using a static char array. Hot Network Questions ShellExecute doesn't wait for the invoked program to finish running. fMask := I use shellexecute to start a . Thanks a lot!!!! Aviella Angel Sometimes, you need to wait for a thread to finish some operation rather than waiting for a particular thread to complete execution. On Windows, it is implemented as TWinWindowHandle (a subclass of TWindowHandle defined in the FMX. txt. I expect there is a better way to do this, maybe sombody can provide a better solution, but this function seems to tell me whether an executable is currently running: Looks as if it tries to open the file a few times, but each tine the file name is incorrect. Rather than changing the working directory after cmd. TEvent) should be created with global scope so that they can act like signals that are visible to all threads. ShellExecute(0, 'open', PChar(BatchFileName), 'param1 param2', nil, SW_SHOWDEFAULT); Ultimately this will lead to the COMSPEC variable being read and then a call to CreateProcess() being made. The file simply hasn't been created yet. It works fine, but not for all links. The information for . Then add a TApplicationEvents component and a TButton on the form. exe', nil, nil, SW_SHOWNORMAL); Writeln('Finished'); So how can I show all the output from another console app in my console app? but I chose to add it because a future developer might add some non-trivial Delphi code between the retrieval of the handles and the calls to CloseHandle, and Delphi-PRAXiS Programmierung allgemein Win32/Win64 API (native code) Delphi Shellexecute Thema durchsuchen. If you have other scripts that need to run only after this script finished you could create some kind of marker upon completion to signal "go" to the other script(s). However, in this scenario it is CreateProcess that is needed. You are assuming that HWND is your TFrmExternalProgram window, but it MIGHT be the TApplication window instead. When it is run, it checks if the BDE is installed. Handle, 'open', PChar('"C:\DelphiInstallation\bin\bds. From within Delphi you can use this code: ShellExecute(Application. If you are calling ShellExecute from a GUI app then you want any windows to be owned by the window that is currently active in your app. bat file to closed. Handle implies a window handle. The using delphi XE I am trying to execute an exe file multiple times with different parameters but i will need to close/restart each one separately for various reasons. Opening files will use the system default editor. exe, I try to load my program console but never loaded programs Th I have a form in a Delphi project. Use this string as the Directory parameter of ShellExecute. When the user clicks the button, I want it to open Windows Explorer. function RunProcess(ACommand: string): boolean; var StartupInfo: TStartupInfo; ProcessInfo: :-) Also, read the MSDN documentation on ShellExecute for yourself. nil, True, NORMAL_PRIORITY_CLASS, nil, nil, start, {var}ProcessInfo) then begin //Wait for the application to terminate, as it writes it's output to the pipe. You can view the original comments by clicking here. exe is C:\cygwin\bin\echo. Themen-Optionen. ) I use ShellExecute to open youtube and it works fine. exe'; itsParameters := ' -u user1 -ppassword -e " Why are you using ShellExecute() at all? You are running an . My issue arises from the fact that Authorize creates an object and starts a routine that is Asynchronous, a HTTP listener (as noted in code block) (2). CreateProcess is pain to use, but There's no need to involve cmd. Command 1 and 2 you would replace with different commands. At this point, you could replace ::ShellExecute with a well thought ::WinExec call, using the actual mailto command line declared in the registry and target the current e-mail client (for Right-click the "Delphi 7" icon on the Start Menu, and Ctrl+C the working directory of this shortcut. Since the link provided by vcldeveloper is broken, here's the full function code that works without 3rd party components. But not with ShellExecute. should I change anything in RunDosInMemo I execute a lot of batch files through my delphi program. uses ShellApi, Windows; Check if Delphiscript has a Windows unit. Run Multiple Tasks in the same Command Line using ShellExecuteEx in Delphi. As an example, here's one that I've used from time to time, based on some code posted by Pat Richey to various newsgroups: How can I run this command from my Delphi application? C:\myapppath\appfolder>appname. Run you can specify bWaitOnReturn to choose whether or not to wait for the process to terminate before your script continues. Possibly with ShellExecuteEx or CreateProcess. Also, why are you using WideString instead of UnicodeString? – Remy Lebeau Waiting on a TThread object that uses FreeOnTerminate=true is a race condition, as the object could be freed at any moment once its Execute() method has exited. I want to compile a Delphi program from another delphi program, to do this I use ShellExecuteEx so that the program waits until the compiling is done. I tried to run the exe file with this code. It is used to start executables. Here's another try: I don't want to get what's in the file to a stringlist and then work with that stringlist, I'm already doing that. The user might end up using the program awhile, and your server will be stuck waiting all that time. For example, you can create a file in a specific path: Once you get a return value of WAIT_OBJECT_0, you can call GetExitCodeProcess. Ein Thema von Andreas L. ShellExecute is a bit flaky about the way it returns a value, the CreateProcess() function might give more predictable results. If you read its documentation you will see what you are doing wrong. Step 1 is to get CreateProcess to do the work and not worry about stdout. How to ShellExecute a program AND THEN send it ShellExecute does not wait for your program to finish work. When the link has the hash sign (#), the link still opens, but not full (it's cut before the #). exe file from the working directory. " and explains, The UAC elevation mechanism uses the HWND as part of determining whether the elevation is a background or foreground elevation. dwCurrentState = SERVICE_STOP_PENDING) do begin // Do not wait longer than the wait hint. – You don't want to replicate ShellExecute because you don't want to use it at all. The applications are stored on the same server, on the same network share. " I know in delphi you can open the default browser with: ShellExecute(self. function EditAndWait(const AFileName : string) : boolean; var Info: TShellExecuteInfo; begin FillChar(Info, SizeOf(Info), 0); Info. In order to wait, you need to obtain a process handle. See ShellExecute function in MSDN. As an example, I am currently using ShellExecute() to run another program from my D6 application. You need to supply an executable file when you call CreateProcess. unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Gr I have Intermec PM4i label printer and Generic text print driver. How can I make my application wait until the other program has finished before it continues How do I properly use the WaitForSingleObject method to wait for an external program to terminate? I'm trying to launch an external application with elevated status, and How to use ShellExecute functions in Delphi to launch programs and files from your code. Handle, 'open', PChar(scriptfilename), PChar(params), PChar(workingdirectory), SW_SHOW ); and my app stops on until (Apprunning <> WAIT_TIMEOUT) loop till I close cmd manually, however the command runs OK from Run window. Like this: procedure OpenAsTextFile(const FileName: string); var sei: TShellExecuteInfo; begin ZeroMemory(@sei, SizeOf(sei)); sei. From RAD Studio. Deutsch; Français; I have made an console application (A) which runs independently every day to download files and uses WriteLn('text') to display progress in the console. Albeit the open verb on an executable file ShellExecute in Delphi – Launch external applications. function RunAsAdminAndWaitForCompletion(hWnd: HWND; filename: string; Parameters: This source code details how to create a process and be notified when it finishes. The Application. Then read the output file. FindWindow". If it raises an exception, I do: ShellExecute(handle, 'open', PChar(ExtractFilePath(Application. Execute" in Delphi please? info: IShellExecuteHook::Execute Method. ValidateDBWithGfix; var bHandleCloseError: boolean; ExitCode: Cardinal; Sometimes you need to start an external application from your own application. Basically, I have a VCL applica Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Is there a safer way to ShellExecute iexplore. Hot Network Questions Creates ShellExecute, ShellExecuteEx, CreateProcess and WinExec are WinAPI functions. Then add these two event-handlers: uses JclShell; procedure TForm3. But it is also possible to pass parameters by using the ShellExecute function. Here is the same example carried out with the help of ShellExecute: It tells you lots of stuff about running exes from Delphi, and more to the point it has a ShellExecute wrapper function called ShellExec which includes a Wait parameter, which you You can check the running processes after ShellExecute and grab it's handle for data transfer but this introduces a lot of unnecessary checks, like timeout (don't wait for the you could exec that batch file using the API function ShellExecute. h> int main() { system( "notepad" ); // only gets to here when the notepad instance is closed } Share Actually ShellExecute() is better – user195488. Okt 2004 Antwort moritz. Execute a program and wait until it has finished. Exec is used. If someone can now take the line i have above and add the Not with ShellExecute. Never ever call it. (SEI. Nowadays it is better to use the ShellExecute (unit ShellAPI) function. You may of course remove the wait part. Clearly, that operation succeeds. exe /stext save. ShellExecute(0, 'open', Pchar('DocumentName. I don't understand what you're asking about but you'll probably want to loop around MsgWaitForMultipleObjects - and process the messages somehow since you're using that variant of WaitForMultipleObjects. ProcessMessages() and GetExitCodeProcess() like you are. ; Use CreateProcess to execute the other process, but pass a handle to a file as the stdout handle for the new process. pascal Run, RunAs, RunAsWait, RunWait, ShellExecute Example #include <MsgBoxConstants. Share. That function, and its infinitely more usable friend ShellExecuteEx are designed to perform a wide range of shell operations on files. ShellExecute is Delphi Windows API function that is mostly used for launch external applications from our Delphi ShellExecuteEx() and CreateProcess() both return a HANDLE that you can wait on. For problems like this it pays to be able to read C and be able to find resources targeting C, that being the native platform language. exe'); The cool thing of this component is that you do not need to wait the end of the program to get back the output. Sql',nil,sw_normal); Another options is use pipes, you can find a very nice To run the script from your Delphi app, use ShellExecuteEx with the "open" verb should work (more details in flags below. Programming tips, downloads, forums, news, topsites, newsletter whats new ¦ programming tips ¦ indy articles ¦ intraweb articles ¦ informations ¦ links ¦ interviews use ShellExecuteEx() instead of CreateProcess(), specifying the SEE_MASK_NOASYNC flag, so the OS knows that the calling thread does not have a message loop to handle DDE messages. Use :-) Also, read the MSDN documentation on ShellExecute for yourself. ShowFolder(strFolder: string); begin ShellExecute(Application. Then map them to Delphi. It includes designtime and runtime packages for Delphi and The simple pattern for task creation and waiting until the work is done is shown by this pseudo code // create a management task task. Toggle show/hide system files from Delphi. How can Delphi app print to Generic_text_driver without shellapi function? This is not GDI printer. Post date: Sep 24, 2010 1:39:19 AM This is the code that I use. A long explaination but I found it nescessary. Platform. 1 How to ShellExecute a program AND THEN send it command line text. hProcess, Result) then Result := ERROR_GEN_FAILURE; end; I'm using Delphi's winapi ShellExecute to try to print to a user selected printer and not the default printer. Also, I strongly suggest you NOT use a busy loop to call Application. Their paths are in the format: const JobManager = 'Z:\Apps\Application 1\Application1. exe', nil, nil, SW_SHOWNORMAL); But I get errors: Undeclared identifier 'Handle'. It can't report errors properly. Stop advocating ShellExecute. When I did F1 on FindWindow in Delphi it took me to "FMX. But someone answered "Dont forget to wait with the file" (or something like that. Its echo. The reason to choose ShellExecute doesn't wait for the invoked program to finish running. Delphi Tasks and Thread after program termination. ; For the command interpreter option you would have a Find answers to ShellExecute from a Delphi service but the application must be visible from the expert community at Experts Exchange if ShellExecuteEx(@exInfo) then Ph := exInfo. The Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I have a procedure to open a folder in Windows Explorer that gets passed a directory path: procedure TfrmAbout. com". exe', 'appname. That means that you should just be able to "shell execute" the file. Re: Shellexecute 28. Delphi: ShellExecuteEx to . You need to wait until the process handle is signaled. Can't hide a window that's not been fully initialized. (const Fn: string); begin ShellExecute(Application. In most cases, the Windows API-function ShellExecute is used. For example: "Note The Launch folder windows in a You will hit a different problem with that: ShellExecute will return immediately and not wait until the command has actually finished to create the database. Handle, 'open', 'explorer. exe"'), PChar('-pDelphi "C Using ShellExecute and ShellExecuteEx. So my only chance is ShellExecute but I should be able to get the id of the process created so I can wait until ended. Unlike ShellExecuteEx, this method does not return any Yes. txt; Test. Then we read what the program has written to its output. App2 needs to wait on App1's process handle instead. How do I do this? I'm a total newbie to Delphi MSDN says ". ShellExecute(Handle, 'open', PWideChar(InpCommandProgram. To launch an application or execute a file in Win32 environment we will use the return value of ShellExecute() should give you window handle. pdf file extension is configured correctly in the Registry under 64-bit, and that your version of Adobe does not have any known bugs with opening files under 64-bit. Jun 19, 2004 2,312 US. com; Previous Tip; Next Tip; Execute a program and wait until it is done #17. Most legacy code used hard-coded "open" because that used to be the typical default verb. I have had some success using ShellExecuteEx, but certain applications don't return an HProcess (Windows Live Photo Gallery, for example), so I can't (or at least don't know how to) wait for the application to close before moving on when a handle isn't returned. It is called ExecuteAndWait. ) Like I said, if you want the default behavior, leave the verb empty and Windows will automatically give you the default behavior (the same thing you'd get by double-clicking the file in Windows Explorer). Here is the same example carried out with the help of ShellExecute: Delphi 7 - ShellExecute command not working in situations. So unless you can guarantee that you are calling WaitForSingleObject() before the thread's OnTerminate event is fired, then you are not guaranteed to have a valid object on which to read its Handle property. And in your code you do not. If you have to pump a message The parameters for ShellExecute in Delphi are: hWnd: Handle to the window that will own the newly created window, or 0 if no window is to be created. On the other hand, 00001000 and 00000010 = 00000000 which is very much not a combination of the flags. Win. To terminate the process, you can pass the process handle to TerminateProcess(). I tried the following code: ShellExecute(0, nil, 'cmd. Jul 2003 · letzter Beitrag vom 28. . exe' that resides in the same folder as the Delphi application. All the programming I do these days is on Windows. 1. Delphi Form Hiding from Taskbar and Alt+Tab. You need to use ShellExecuteEx with SEE_MASK_NOCLOSEPROCESS. I then have another GUI application (B) which displays that data in tables, but can @Atak_Snajpera: Learn about bitwise operations. ShellExecute. I found few raw printing examples but none work. Shellexecute. pdf'), '', '', SW_SHOWNORMAL); If the first program can wait until the called program has been terminated then consider using 'CreateProcess()' rather than shellexecute. For your specific case, perhaps it's better to avoid calling schtasks. If you want that, use CreateProcess instead of Shellexecute as explained in How can I wait until an external process has completed? Apologies for improper terminology when referencing Delphi's VCL/main thread structure (if anyone has any resources to learn more about this I would appreciate it). I read through other ShellExecute problems and none helped. How to suppress the prompt to change registry settings? Hot Network Questions On a sheet of choir music, how do you interpret two notes represented by two heads on a single What I'm wanting to do is to hand it a command from within a Delphi app to execute some arbitrary CmdLet and get status information back from it while it's executing the script (otherwise I'd make do with doing a ShellExecute on it). ShellExecute always runs asynchronously. For ShellExecuteEx, fill in the appropriate members of a SHELLEXECUTEINFO Here's the rough outline of what you need to do. – How to insert the logic into a Delphi application . finally placement for CreateProcess . If the execution fails (non-0 return value from executable), After I have shown how to start another program out of your Delphi application in this tipp, I would like to show you now, how to pass parameters to the external application. This function is linked to the How do I open a file with the default text editor? You need to use ShellExecuteEx and use the lpClass member of SHELLEXECUTEINFO to specify that you want to treat the file as a text file. SS64's details about . How can i run shellexecute with a variable? 0. au3> Example () Func Example () ; Execute Notepad and wait for the Notepad process to close. You're going to have to look for another solution (like writing while (ssStatus. Here is my code if i have to put a sleep function in to make it wait until the shellexecute is finished before i can load the file. First we will find process id (PID), and then we'll get process handle by opening all access (since the OP mentioned in the comments he will need this for ReadProcessMemory functionality). That's the command interpreter. 2 - Place two ampersands && between two command to make command2 execute only if command1 finished successfully. It has been replaced by ShellExecuteEx. This is a source-only release of TurboPack DOSCommand. Singularly unhelpful. Again it's a little harder to operate, but probably still easier than CreateProcess since that forces The simplest way to execute a program and wait is to use system(): #include <stdlib. WaitForSingleObject . exe, PChar(/C + program_path+ -fg), PChar(program_path), SW_HIDE); but when the program_path have a space like a New folder var program_path: string; begin program_path:= I am programming using Delphi 2010 on a 32-bit Windows 7 PC. However, since you are executing a new process you would be better to call CreateProcess. If you wish to wait for the process to complete, you need to take specific steps to do so. You can read about it http://delphi. A quite different thing altogether. Close the previous process. canvas capable driver. This seems to call an application 'secondprogram. 3. Then check for errors as described in the documentation. I have used this code for years with Delphi 7 and it worked: function Execute(CONST ExeName, Parameters: string): Boolean; begin Result:= ShellExecute(0, 'open', PChar(ExeName), PChar(Parameters), nil, SW_SHOWNORMAL)> 32; end; How do you use WinExec or ShellExecute to run a program and cause the calling program to wait until the child program finishes executing? Does either WinExec or ShellExecute allow you to execute programs like PROGNAME. There is a button on the form. You want to execute a different executable so do that directly. According to SS64, for . 1. See JclTask in the JCL. End of story. 4. Create the new process passing in the pid of the previous process. Before closing handle, you I want to create and then open a txt file using the ShellExecute command. ; If you must hide a console window, pass the CREATE_NO_WINDOW flag to CreateProcess. What would an example shell execute statement look like if I wanted to print manual. In reading entries about Delphi's Sleep() method on stackoverflow, I found these two comments: I live by this maxim: "If you feel the need to use Sleep(), you are doing it wrong. At a guess,since you're using Pascal strings which have a pre-calculated length, checking the length should be more efficient than doing a compare against an empty string, but it's entirely possible the compiler may convert one into the other anyway, if it's smart I can't speak for Delphiscript, but in Delphi the SW_ constants are defined in the Windows unit:. Find answers to Using ShellExecute to call command line executable with parameter from the expert community at Experts Exchange from my delphi code. exe writes new output. Description: This method is called any time the ShellExecute or ShellExecuteEx functions are called. ShellExecuteEx is your guy. I think that I either didn't explain properly what. Using ShellExecute to start process running as administrator. Your problem is the redirect, >, which only makes sense if you have a command interpreter. The HANDLE is signaled when the spawned process exits. I'll leave the coding up to you: Start your process with either ShellExecuteEx or CreateProcess. Check this out and see my The Delphi programming language provides a quick way to write, compile, package, and deploy applications cross-platform. 3 - Place two pipes || Why don't you use ICS or Indy or other Delphi library for TCP/IP? They have a ping component ? And if not a TCP/IP library, why use DosCommand instead of ShellExecute or CreateProcess to run the command interpreter passing the batch file? – If you double-click a project file it opens in Delphi. You don't need to create a process that creates I'm having some problems getting ShellExecute to work without erroring, and I think the problem is associated with not having a handle for the console applicaiton. ShellExecute doesn't return enough information for you to do that, so you should try CreateProcess This is my function that should execute a program as "modal". For ShellExecuteEx, fill in the appropriate members of a SHELLEXECUTEINFO The duplicate question is not for Delphi, but uses the same API calls you have available in Delphi. Clearly you have combined the two flags. ShellExecute/Ex is a heavyweight call that may have side effects that are either desireable or undesireable. Ansicht. However, it is not very flexible. You are not validating the HWND's class/title before sending Hi I need need to run WinRAR with parameters using shellexecute (maybe something else, but this is the only one that i know of), it must be hidden, and the delphi app must wait for it to finish, it would be best to get the progress from it (job progress not file progress - if it's possible, if not then nevermind ;) Greets @Rob - I'd already thought of that. Win unit). There are a few options that will affect your design choices. Undeclared identifier 'SW_SHOWNORMAL' Instead of PWideChar, you should use PChar - this will make it compatible with both Unicode and non-Unicode versions of Delphi (Chris edited the answer to do this while I wrote it :-)). Don't use it, due to its deprecation. im creating this kind of program where their is RichEdit and two buttons (1st button: Refresh, 2nd button: Open As). This function can also be used to open an URL, to create an email and to open a file with the application which is linked in the Windows Explorer. Is there a way to ensure I receive a handle when calling ShellExecuteEx? The Delphi console application in question tries to utilize WinExec to call Cygwin's echo. Showing all the ShellExecute code is pointless since it has nothing to do with the actual problem (although doing so does reveal that you leak a process handle). exe', 'icacls "C:\ProgramData\My Program\File" /grant Users:F', nil, SW_NORMAL); Note: The command its self works perfectly. ExeName) + 'BDESetup\Setup. You can use the process handle to wait for the process to exit. Either in a separate thread use WaitForSingleObject. To do this, use an event object. This will yield a process handle. The following function starts an executable with a given command line. #2 Glenn9999 Programmer. I guess you are used to calling ShellExecute which is more lax. com/od/windowsshellapi/a/executeprogram. You need to call GetExitCodeProcess and for that you need the handle of the created process. ShellExecute in Delphi – Launch external applications. ' + IntToStr (FPort)); ShellExecute (0, 'open', PChar The picture is that I have a head application that runs one or more function specific applications using the shellexecute functionality. Or use MsgWaitForMultipleObjects to perform a wait that can be interrupted in order to process input events. If you have no GUI in your app then pass 0. That all works fine. 0. exe which is the Windows command interpreter. CreateProcess will tell you the new process ID in the dwProcessID member of the TProcessInformation record it fills; ShellExecuteEx only returns a process handle, so use GetProcessID on that. exe), '', nil , SW_SW_SHOWMINNOACTIVE); My problem is, that the application continues to run before Using ShellExecute and ShellExecuteEx. Okt 2004 · letzter Beitrag vom 4. exe'; FeeManager = 'Z:\Apps\Application 2\Application2. Optional: wait for the process to end by using WaitForSingleObject When using ShellExecuteEx in Delphi 7 to open a file using a verb, I always seem to be getting 42 back as a result in hInstApp, even though I'm expecting to get a failure and a 31 result, as there is no file association. bat file with a parameter. Don't use ShellExecute. In some cases, if the other application will allow, you can use the process id of the new process and tell Windows to hide it (as posted by Pateman above). Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Yes you are right, i want to open a document. But in this case this is the wrong way to create a new process. ShellExecute cannot notify you about the outcome of operations launched on its behalf. April 2010. . Execute a command-line Application via ShellExecute() and get its return value. Or if you must wait in the main thread, and must use ProcessMessages, use MsgWaitForMultipleObjects. This also naturally produces a nice interval to call CheckCanceled so that . Shellexecute and Wait and keep console-window open? 1. – There's no point at all trying to persist with this. Load 7 more related questions Show fewer related questions Sorted by: Reset to default Know someone who All about Borland Delphi. ShellExecute(Handle, 'open', 'start. ProcessMessages to handle the messages. All that ShellExecuteEx is doing here is calling CreateProcess. it comes line by line. Windows has the ReadDirectoryChangesW function for that, and OSnews published a nice A Directory Monitor Class For Delphi which wraps around that. To get App1's process handle, use OpenProcess() with GetCurrentProcessId() as the process ID, or DuplicateHandle() with GetCurrentProcess() as the source handle. txt', nil, SW_Hide); But it didn't work. As another option The important one is the first one. If you want to go to the ultimate command line length then you can use CreateProcess which has a limit of 32,768 characters. exe. Button. You should do that directly and avoid the middle man. txt file. Jul 2003 Turbo Delphi für Win32 #12. There are cases when ShellExecuteEx can service your request without creating a new process, so you'll have nothing to wait on. Commenting it out shows that the ShellExecute call is what blocks. Jul 2003, 11:38 A Delphi application that I'm working on must delay for one, or sometimes two, second(s). Use a wait function to block until the process you created has terminated. PChar is built in to the Delphi compiler, so if PChar does not compile in Delphiscript then maybe Delphiscript does not support null-terminated character strings only Delphi-style strings, or maybe there is There are some limits on the length of the names passed to ShellExecute, but these are typically greater than 512 characters. None of it is GUI The restart program can wait for a time, or until the executable file is read-writeable which seems to mean it is not running, then it can execute it and close itself. Terminate; wait(2000); <<<<< ShellExecute(A2) end; To be more exact - I need to call installation (A2) and want to be sure A1 is not running, because A2 is installation of A1. Go Up to Index. Make sure the . ) You could execute the script itself if it's associated with your Perl executable, or run your Perl exe with the script as a command line argument. It is tempting to do so because it is simple to call. WindowHandle,'open','www. The individual apps can be run as a standalone app. I'm developing a Shopee Wrapper in Delphi and ran into a pitfall. hProcess, INFINITE) <> WAIT_OBJECT_0 then if not GetExitCodeProcess(SEI. exe, so installer can start fine, but fail during installation process. Any ideas? I tried using WaitForSingleObject, but I can't figure out the syntax, and I don't know what to test for. However, you say that Shell returns Force ShellExecute to run and wait for completion with elevated privileges in Delphi April 2010. Load 7 more related questions Show fewer related questions Sorted by: Reset to default Know someone who can answer? Share a Force ShellExecute to run with elevated privileges in Delphi. In my Win32 VCL application I am using ShellExecute to launch a number of smaller Delphi console applications. you must pass a parent HWND with a ShellExecute . You are clearly looking to call cmd. I wonder why everybody who wants launch a new process tends to use ShellExecute instead, which is designed to open file in associated application? You want new process? Then use CreateProcess. Delphi. In the past this could be done with the WinAPI function WinExec. An example usage I've found in one of my old units (for What ShellExecute is and how to use it in Delphi. ShellExecuteEx Problem/Question/Abstract: I have a CD-ROM catalog Paradox application. If you have Delphi 2009 or later, you could use TList<HWnd>; for earlier versions, you could use a TList descendant or whatever else you choose. Operation: The Alternative 2: ShellExecute. Optimal try. You should be able to find what you need in here: uses Windows, ShellAPI; type TMethod = procedure of object; procedure WaitUntilSignaled It tells you lots of stuff about running exes from Delphi, and more to the point it has a ShellExecute wrapper function called ShellExec which includes a Wait parameter, which you can use to wait for the exe to finish before carrying on. exe ShellExecute(0, nil, cmd. The line that is causing me grief is: ShellExecute(0, 'open', 'someapplication. Also note the create flags. begin Application. Delphi, for example, does this when it runs a command-line app during a build. There are two obvious ways to avoid that. how to make delphi wait 30sec then continue. There is altough a problem, the ShellExecute does not wait and so this is runing square. I am planning to use ShellExecute for the updater of an application written in delphi 2007, I was wondering if ShellExecute will work on most computers with Win or if it can easly fail because of some user permission or something like that. This happens when a file is double-clicked in Explorer or when the Run dialog box is used. If ShellExecuteEx does return a process handle to you, you leak it. Delphi cannot execute procedure in Task with object references. · begonnen am 27. cmd output in a . I have tried using shellexecute but it has no such way of doing it. In the Delphi IDE, create a VCL Forms Application. You will also I just tried it and it doesn't work. I don't have any Delphi 7 system to experiment with, but in my virtual WIndows 95 machine, in which I have Delphi 4 installed, there is indeed a specified working directory: In C I've used the system() function before in a console application and if I start another process using system() it inherits the console window of the process that called it. You can do that with ShellExecuteEx or CreateProcess. Let’s examine the simple task of calling. In any case, ShellExecute is the wrong function to use here. App1. mp3 c: /test. Command Prompt auto confirm message pop up window. If you want your program to &quot;swallow&quot; the window, you can try using the Windows API SetParent() ShellExecute in Delphi – Launch external applications. In FireMonkey, a Form's Handle property is of type TWindowHandle (a class defined in the FMX. The advantage is that you let the shell do the heavy I am trying to launch a program using ShellExecute, then wait to execute the next code until the launched program finishes. In the code samples, the call to ShellExecute is not showing any UI at all. Registriert seit: 18. Please help. So pass MyForm. (And the difference is in the second parameter to ShellExecute . Jesse Strachman TIE Commerce--***** TIE COMMERCE Jesse Strachman Also note the WaitForSingleObject. Commented Feb 12, 2010 at 23:03. The following example uses the ShellExecuteEx API function. But I want the app to wait for the . Wait() to return in a timely manner Task Execution from Delphi using ShellExecute. There is a brilliant piece of code that creates a mutex and allows the application to restart after an update or modification. There are a number of ways to improve this: Don't use ShellExecute. This is what happens: Test. 2 How can i run shellexecute with a variable? 1 Delphi 7 - ShellExecute command not working in situations. Delphi Reference; C++ Reference; Subject Index; In other languages. I'm putting out other fires at the moment, but will reply back when I have a solution worked out (most likely calling Wait for somebody to create a cross platform Delphi wrapper to abstract away platform process creation differences? Or do it now using the platform API. If shellexecute failed to start the program it will return a value of <32. You don't want to use ShellExecuteEx since that has far more generality than you need. txt; Delphi 2010 uses the Unicode version of CreateProcess() (aka CreateProcessW()). try this sample. Programming tips, downloads, forums, news, topsites, newsletter whats new ¦ programming tips ¦ indy articles ¦ intraweb articles ¦ informations ¦ links ¦ interviews Is there a way of knowing when a file opened using Shellexecute has been saved by user. ShellExecute command performs properly on How to use ShellExecute functions in Delphi to launch programs and files from your code. Handle. MSDN says ". Application. Set up a wait state on the process that is created in shellexecute (there Using Delphi 2009 on a Windows Vista machine, this will open a Microsoft Mail "Create Mail" window, with the To, Subject and Body filled correctly. I don't know if this is possible to solve with ShellExecuteEx, I've tried to use Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company You should use a wait function. Although Delphi creates a graphical user interface, there are bound to be times you want to Delphi Tips. If you want your program to &quot;swallow&quot; the window, you can try using the Windows API SetParent() function. Delphi Error: "Cannot focus a disabled or invisible window" 0. exe itself: First of all, use ShellExecuteEx and wait for termination (do not use sleep!), you can read more about this solution. To use ShellExecute or ShellExecuteEx, your application must specify the file or folder object that is to be acted on, and a verb that specifies the operation. Now though, I need to have one of these applications appear in one of my Delphi app forms. Is there a way to pause my Delphi plugin and loop or wait until the FileExists returns true before continuing? Pseudocode: Launch form (ShowModal) Form runs exe, manipulates external files Close Form Form released if ExternalFiles exist, do stuff. 45 Getting output from a shell/dos app into a Delphi app. Handle,PChar('explore'),PChar(strFolder),nil,nil,SW_SHOWNORMAL); end; It takes two parameters: a handle to the process that you want to wait on, and the time-out interval (in milliseconds) that indicates the maximum amount of time that you want to wait. Run the program and wait for it to terminate before you check for the output file. Use a thread to perform the call to ShellExecuteEx and the subsequent wait, as suggested by Marko. Cygwin is installed under C:\cygwin. Beyond that you need to read about the syntax for arguments to cmd. txt file, this isnt working properly. ConnectedToWeb is not the problem. exe','/c MySqlDump. By sticking to it you have no other options but command line parameters, best case scenario is to encrypt the password and decrypt it from the second app. Then you can pass the handle to App2, and have App2 wait on it using WaitForSingleObject(). PDWORD): Longword; StartupInfo: TStartupInfo; ProcessInfo: TProcessInformation; Also, you should probably replace your call to WinExec with one that uses either ShellExecute or createProcess to wait for the spawned process to continue. Please try to cut this down to the minimum needed to illustrate the problem. @David: specifying NULL tells ShellExecute() to invoke the default registered verb, falling back to "open" if none exists, and falling back to the first found if "open" does not exist. First FindExecutable to find the executable for opening an HTML file, and then ShellExecute to start that executable (the default browser), with the full url as a parameter. Can anyone provide a solution? For convenience you may find ShellExecute() to be a more amenable option: uses ShellAPI; . When the new process starts, have it wait until the previous process has terminated before it shows UI. cqp jaiz uhacvd jrapx mhbyv yymjyi dlrl xcsx frl unnbhls