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InSendMessage function

Determines whether the current window procedure is processing a message that was sent from another thread (in the same process or a different process) by a call to the SendMessage function.

To obtain additional information about how the message was sent, use the InSendMessageEx function.

Syntax


BOOL WINAPI InSendMessage(void);

Parameters

This function has no parameters.

Return value

Type:

Type: BOOL

If the window procedure is processing a message sent to it from another thread using the SendMessage function, the return value is nonzero.

If the window procedure is not processing a message sent to it from another thread using the SendMessage function, the return value is zero.

Examples

For an example, see Sending a Message.

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
InSendMessageEx
SendMessage
Conceptual
Messages and Message Queues

 

 

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