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CreateProcess / Command Line Parsing MFC SDI

Want to use CreateProcess to launch another MFC SDI application the First Parameter and passing a file path in the second parameter for the launched program to load. Making the call as follows:

PROCESS_INFORMATION procInfo;
      BOOL processStarted;
      memset(&suInfo, 0, sizeof(suInfo));
      suInfo.cb = sizeof(suInfo);
      // Kick off the Next Program
      processStarted =
      CreateProcess(
            "C:\\Program Files\\BuildCustomCatalog\\Chass_Header_New\\Chass_Header_New.exe",
            "C:\\CCBuild\\Commands_New\\9778_W_1_4B974338.txt",
            NULL,                              // process security attributes
            NULL,                              // thread security attributes
            FALSE,                              // handle inheritance flag
            NORMAL_PRIORITY_CLASS,        // handle inheritance flag
            NULL,                              // pointer to new environment block
            NULL,                              // pointer to current directory name
            &suInfo,                         // pointer to STARTUPINFO
            &procInfo);                        // pointer to PROCESS_INFORMATION
}

The launched program chokes on this call. If I execute the CreateProcess call using NULL for parameter 2 (Command Line Argument i.e. pass no command line argument), the launched program has no problem. The launched program seems to choke at the "if (!ProcessShellCommand(cmdInfo)) return FALSE;" call in the CWinApp InitInstance() function when a file path is included in the command line;

Any ideas would be appreciated.

Thanks,

Julian

ASKER CERTIFIED SOLUTION

AlexFM

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SteveGTR

Does the same thing happen when you specify the command line in your project settings and run the Chass_Header_New.exe from within the developer's studio?

When you say the program chokes what do you mean? Throws an exception? Asserts? Hangs forever?

You are calling ProcessShellCommand() after the following commands:

// Parse command line for standard shell commands, DDE, file open
CCommandLineInfo cmdInfo;
ParseCommandLine(cmdInfo);

And after your document has been setup.

The CWinApp::ProcessShellCommand() routine in APPUI2.CPP has a switch and the following is executed when you pass your parameters:

case CCommandLineInfo::FileOpen:
if (!OpenDocumentFile(rCmdInfo.m_strFileName))
bResult = FALSE;
break;

Can your document's OpenDocumentFile handle the file name?

Good Luck,
Steve

JulianPugh

ASKER

Alex,

Passed the exe file path and file to load in the second CreateProcess parameter, as you suggested, and everything works perfectly fine. I really appreciate your help.

thanks,

Julian