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4/8/2010

This function places a message in the message queue of the specified thread and then returns without waiting for the thread to process the message.

Syntax 

BOOL PostThreadMessage(
  DWORD 
idThread, 
  UINT 
Msg, 
  WPARAM 
wParam, 
  LPARAM 
lParam 
);

Parameters

idThread

[in] Identifier of the thread to which the message will be posted.

Msg

[in] Specifies the type of message to be posted.

wParam

[in] Specifies additional message-specific information.

lParam

[in] Specifies additional message-specific information.

Return Value

Nonzero indicates success. Zero indicates failure. To get extended error information, call GetLastError. GetLastErrorreturns ERROR_INVALID_THREAD_ID if idThreadis not a valid thread identifier.

Remarks

The thread to which the message is posted retrieves the message by calling the GetMessageor PeekMessagefunction. The hwndmember of the returned MSGstructure is NULL.

Requirements

Header winuser.h
Library coredll.lib
Windows Embedded CE Windows CE 1.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also