How to use the imaqSetEventCallback function ?

[toidi]

I install the callback like the following:
imaqSetEventCallback (WindowEventCallback, TRUE);

But I don not know how to make the prototype of the WindowEventCallback, who can help me?

[gregstoll]

As the CVI Function Reference Help mentions, the callback should have the following prototype:

void IMAQ_CALLBACK MyCallback(WindowEventType, int windowNumber, Tool tool, Rect rect);

Greg Stoll
IMAQ R&D
National Instruments