The WindowProc function is an application-defined callback function that processes messages sent to a window.
LRESULT CALLBACK WindowProc(
| HWND hwnd, | // handle of window |
| UINT uMsg, | // message identifier |
| WPARAM wParam, | // first message parameter |
| LPARAM lParam | // second message parameter |
| ); |
Parameters
hwnd
Identifies the window.
uMsg
Specifies the message.
wParam
Specifies additional message information. The contents of this parameter depend on the value of the uMsg parameter.
lParam
Specifies additional message information. The contents of this parameter depend on the value of the uMsg parameter.
Return Values
The return value is the result of the message processing and depends on the message sent.
Remarks
WindowProc is a placeholder for the application-defined function name.
See Also