SetMessageExtraInfo

Overview

Group

Quick Info

Windows NT
Yes
Win95
Yes
Win32s
No
Import Library
user32.lib
Header File
winuser.h
Unicode
No
Platform Notes
None

The SetMessageExtraInfo function sets the extra message information for the current thread. Extra message information is an application- or driver-defined 32-bit value associated with the current thread's message queue. An application can use the GetMessageExtraInfo function to retrieve a thread's extra message information.

LPARAM SetMessageExtraInfo(

LPARAM lParam	// application-defined 32-bit value
);

Parameters
lParam

Specifies the 32-bit value to associate with the current thread.

Return Values
The return value is the previous 32-bit value.