WM_SendMessageNoPara(): hWinSrc member of received message is zero

giusloq · January 25, 2016 at 4:10 PM

I'm using WM_SendMessageNoPara() function to send a message from window A to window B, when the user press a button on window A. The member hWinSrc of the received message by window B is zero. Is it normal?

SEGGER - Jörg · February 9, 2016 at 10:15 AM

Hi,

Yes, that is normal. The prototype of the function is as follows:

void WM_SendMessageNoPara(WM_HWIN hWin, int MsgId);

It does not consider the sender. But you can use WM_SendMessage() and fill the message structure with the required information.

Regards, Jörg

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