| LONG GetMessageExtraInfo(VOID) |
The GetMessageExtraInfo function retrieves the extra information associated with the last message retrieved by the GetMessage or PeekMessage function. This extra information may be added to a message by the driver for a pointing device or keyboard.
This function has no parameters.
The return value specifies the extra information if the function is successful. The meaning of the extra information is device-specific.
GetMessage, PeekMessage