The GetWindowWord function retrieves a 16-bit (word) value at the specified offset into the extra window memory for the specified window.
The GWW_ values supported by 16-bit Windows are obsolete. You must use the GetWindowLong function to retrieve information about the window.
WORD GetWindowWord(
HWND hWnd, |
// handle of window |
int nIndex |
// offset of value to retrieve |
); |
If the function succeeds, the return value is the requested 16-bit value.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
Reserve extra window memory by specifying a nonzero value in the cbWndExtra member of the WNDCLASS structure used with the RegisterClass function.
GetParent, GetWindowLong, RegisterClass, SetParent, SetWindowLong, SetWindowWord, WNDCLASS
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