The WM_ENABLE message is sent when an application changes the enabled state of a window. It is sent to the window whose enabled state is changing. This message is sent before the EnableWindow function returns, but after the enabled state (WS_DISABLED style bit) of the window has changed.
WM_ENABLE
fEnabled = (BOOL) wParam; // enabled/disabled flag
Parameters
fEnabled
Value of wParam. Specifies whether the window has been enabled or disabled. This parameter is TRUE if the window has been enabled or FALSE if the window has been disabled.
Return Values
If an application processes this message, it should return zero.
See Also