windowsdebuggingwindows-process

How do I provide the "Find Window's Process" feature in Process Explorer (sysinternals)

I'm developing an application for debugging purposes. I want the user to be able to select the process to be debugged using the mouse. Process Explorer does a great job of this with the "Find Window's Process" feature. What I can't figure out is how it does this? Does anyone know the Window's API that provides this functionality?

Thanks, Grant

Solution

  • I haven't tried this, but it should work: Use WindowFromPoint to get the window handle, then use GetWindowThreadProcessId to get the ID of the process that created the window.

    Alternatively, you could use EnumWindows to enumerate all top-level windows on the screen, filter them by some criteria (e.g. position) and then use GetWindowThreadProcessId to get the process IDs.