The GetWindowThreadProcessId function retrieves the identifier of the thread that created the specified window and, optionally, the identifier of the process that created the window.
At a Glance
| Header file: | Winuser.h |
| Windows CE versions: | 1.0 and later |
Syntax
DWORD GetWindowThreadProcessId(HWND hWnd,
LPDWORD lpdwProcessId);
Parameters
hWnd
Handle to the window.
lpdwProcessId
Pointer to a 32-bit value that receives the process identifier. If this parameter is not NULL, GetWindowThreadProcessId copies the identifier of the process to the 32-bit value; otherwise, it does not.
Return Values
The return value is the identifier of the thread that created the window.