Validating a Win32 Window Handle
Question
Given a handle of type HWND
is it possible to confirm that the handle represents a real window?
Solution
There is a function IsWindow
which does exactly what you asked for.
BOOL isRealHandle = IsWindow(unknwodnHandle);
Look at this link for more information.
OTHER TIPS
Generally no. By the time you've got confirmation that a Window is valid another process/thread my come along and remove it for you.
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