CWnd::GetDlgCtrlID
Returns the window or control ID value for any child window, not only that of a control in a dialog box.
int GetDlgCtrlID( ) const;
Return Value
The numeric identifier of the CWnd child window if the function is successful; otherwise 0.
Remarks
Since top-level windows do not have an ID value, the return value of this function is invalid if the CWnd is a top-level window.
Example
See the example for CWnd::OnCtlColor.
Requirements
Header: afxwin.h