如何检测HWND是否属于我的应用程序？

Question

My application creates multiple windows and I want to enforce a Z order in-between these windows, ie, if two windows happen to overlap, a window with a higher priority should be painted over the window with lower priority.

I am getting the handles of different (invisible/visible) windows wrt to a window using the GetWindow function. I want to know if a particular window returned by this function is created by my application. Any ideas on how can I get that information?

Answer 1

You can use [MS.Docs]: GetWindowThreadProcessId function .

In order to check the current process id, use [MS.Docs]: GetCurrentProcessId function .

If your app is more complex and spawns multiple processes that create windows, you'll have to construct the process tree using [MS.Docs]: Tool Help Functions (( CreateToolhelp32Snapshot , Process32First , Process32Next ) + CloseHandle ).