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C++ execute command line - errorcode

Posted on 2015-01-27
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Last Modified: 2015-01-28
Hi Experts,

How can I run an exe from code and get the value of errorcode (as we would in a batch file)?

Thanks!
Mike
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Question by:thready
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3 Comments
 
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Accepted Solution

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jkr earned 500 total points
ID: 40574421
The ise is to evaluate 'GetExitCodeProcess()', e.g. like

DWORD ExecuteAndWaitForCompletion   (   LPSTR   pszCmd, BOOL bShow)
{
	STARTUPINFO         si;
	PROCESS_INFORMATION pi;

	BOOL                bRes;

	DWORD               dwCode  =   0;

	MSG				   msg;

	ZeroMemory  (   &si,    sizeof  (   STARTUPINFO));

	si.cb           =   sizeof  (   STARTUPINFO);
	si.dwFlags      =   STARTF_USESHOWWINDOW;
	si.wShowWindow  =   bShow ? SW_SHOWNORMAL : SW_HIDE;

	bRes    =   CreateProcess   (   NULL,
								   pszCmd,
								   NULL,
								   NULL,
								   TRUE,
								   NORMAL_PRIORITY_CLASS,
								   NULL,
								   NULL,
								   &si,
								   &pi
							   );

	while   (   WAIT_OBJECT_0   !=  MsgWaitForMultipleObjects   (   1,
																   &pi.hProcess,
																   FALSE,
																   INFINITE,
																   QS_ALLINPUT
															   )
		   )
		   {
			   while   (   PeekMessage (   &msg,   NULL,   0,  0,  PM_REMOVE))
					   {
						   DispatchMessage     (   &msg);
					   }
		   }

	GetExitCodeProcess  (   pi.hProcess,    &dwCode);

	CloseHandle (   pi.hProcess);
	CloseHandle (   pi.hThread);

	return  (   dwCode);
}

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LVL 86

Expert Comment

by:jkr
ID: 40574422
Sorry about the code formatting, but you'basically call this function with the command line to execute and the the return value (or %ERRORCODE%) back in return.
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LVL 1

Author Closing Comment

by:thready
ID: 40575763
Awesome!  :-)
Thanks!
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