GetWindowThreadProcessId function
Retrieves the identifier of the thread that created the specified window and, optionally, the identifier of the process that created the window.
Syntax
DWORD GetWindowThreadProcessId(
HWND hWnd,
LPDWORD lpdwProcessId
);
Parameters
hWnd
Type: HWND
A handle to the window.
lpdwProcessId
Type: LPDWORD
A pointer to a variable that receives the process identifier. If this parameter is not NULL, GetWindowThreadProcessId copies the identifier of the process to the variable; otherwise, it does not.
Return Value
Type: Type: DWORD
The return value is the identifier of the thread that created the window.
Requirements
Minimum supported client | Windows 2000 Professional [desktop apps only] |
Minimum supported server | Windows 2000 Server [desktop apps only] |
Target Platform | Windows |
Header | winuser.h (include Windows.h) |
Library | User32.lib |
DLL | User32.dll |