在子窗口中执行外部 exe (C++, win32)

Question

I have written a simple win32 program say abc.exe .

I have added a button in it, clicking on which an external exe say xyz.exe should start.

But the original program ie abc.exe should be inaccessible while xyz.exe is running. (Same as in the case of message box where the parent window remains inactive unless message box is closed)

How can Ido it ? It would be great if you could post an example code.

Answer 1

You can use WaitForSingleObject (IIRC) to wait for the new process to terminate. You can make your window not visible (eg via ShowWindow ) before waiting. Check successful launch first.

Answer 2

When the button is pressed, create the 'xyz.exe' process using CreateProcess function and save the new process' handle ( hProcess in the PROCESS_INFORMATION struct you passed in CreateProcess ).

Then you can disable the 'abc.exe' window by calling EnableWindow with bEnable set to FALSE . In the window procedure of 'abc.exe', where the WM_PAINT message is handled add a check to see if the 'xyz.exe' process is still running. You can do this by using GetExitCodeProcess function with the handle you saved earlier and checking if the return value is STILL_ACTIVE . If the 'xyz.exe' process is no longer active, you can then enable the 'abc.exe' window using EnableWindow again.