Get Child window using ProcessID or Window Handle?

Question

My program A launched program B (both are separate exe's). Now my program B need to find if A have any modal/child window open using A's processID.

Is there any way to do so?

Thanks a lot for your help.

Answer 1

您也许可以使用该问题的一些建议（如果您不介意使用Win32调用）。

Answer 2

I found the soln.
1. Get handle of parent window A.
PerformanceCounter perId = new PerformanceCounter("Process", "Creating Process ID", Process.GetCurrentProcess().ProcessName);

2. Use GetLastActivePopup method to get last active popup (Last popup works in my case :) ) .