SetMessageExtraInfo function

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

Syntax


LPARAM WINAPI SetMessageExtraInfo(
  _In_  LPARAM lParam
);

Parameters

lParam [in]

Type: LPARAM

The value to be associated with the current thread.

Return value

Type:

Type: LPARAM

The return value is the previous value associated with the current thread.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Winuser.h (include Windows.h)

Library

User32.lib

DLL

User32.dll

See also

Reference
GetMessageExtraInfo
Conceptual
Messages and Message Queues

 

 

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