How to run a Command in a progam and wait until finish?

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3 total messages Started by Phuoc Sun, 23 Sep 2007 13:58

#1347

Author: Phuoc
Date: Sun, 23 Sep 2007 13:58

16 lines
1185 bytes

I tried to google "ShellExecute wait" there are many different solutions  
suggested. They all look a bit complicated. Is there another command for  
this and can pause the main process?

thanks
Phuoc

-- 
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I'm using BCB5 on XP Home

Re: How to run a Command in a progam and wait until finish?

#1248

Author: Michel Leunen
Date: Sun, 23 Sep 2007 19:04

32 lines
1934 bytes

Phuoc wrote:
> I tried to google "ShellExecute wait" there are many different solutions 
> suggested. They all look a bit complicated. Is there another command for 
> this and can pause the main process?

Don't use ShellExecute() for this but CreateProcess() along with 
WaitForSingleObject().
Something like this:

    PROCESS_INFORMATION piProcInfo;
    STARTUPINFO siStartInfo;

    memset(&siStartInfo, NULL, sizeof(STARTUPINFO));
    siStartInfo.cb = sizeof(STARTUPINFO);
    //launch your application
    CreateProcess(NULL, "yourApp.exe",
                  NULL, NULL, 0, 0, NULL, NULL,
                  &siStartInfo, &piProcInfo);

    //Wait for your application to end
    WaitForSingleObject(piProcInfo.hProcess,INFINITE);
    ...

HTH
Michel

-- 
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Michel Leunen
http://www.leunen.com/

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Re: How to run a Command in a progam and wait until finish?

#1249

Author: Bob Gonder
Date: Sun, 23 Sep 2007 21:13

15 lines
1521 bytes

Michel Leunen wrote:

>    CreateProcess(NULL, "yourApp.exe",
>                  NULL, NULL, 0, 0, NULL, NULL,
>                  &siStartInfo, &piProcInfo);
>
>    //Wait for your application to end
>    WaitForSingleObject(piProcInfo.hProcess,INFINITE);

	CloseHandle(  piProcInfo.hProcess );
	CloseHandle(  piProcInfo.hThread );

Yes, that is the prefered method.
Also available are the C spawn functions spawnl, spawnp, etc.
 spawnl( P_WAIT, filename, filename)

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