>I am a C++ programmer that has been told to get a FoxPro program working with my API. From a FoxPro program I need to hand the API the window handle of the FoxPro program and a WM_USER event.
>
>1. How do I get the handle of the window to hand to the API?
>2. How do I trap the WM_USER event inside of FoxPro?
>
>This has been the only thing I haven't been able to figure out.
>
Hi Jay,

Ed's told you about getting the handle of a VFP form through foxtools. You can also use it to get the main window handle. The function MainhWnd() returns this value.

I don't think you're going to be able to trap the WM_USER message, however. I'm guessing that the function you're thinking of using is WindowProc(). Unfortunately, there isn't a way in VFP to create a callback function. The only other way I can think you might be able to accomplish this is through a timer and one of the other Window's message retrieval functions, such as GetMessage() or PeekMessage(). I should advise that I've never tried some like this with VFP. Further, the overhead required to process the timer events might make this impractical.

hth,