woops I made a mistake : u should have read :
res: grabframe "Test" my-int: make struct! [p [integer!]] none
Sorry.
On Wed, 9 Mar 2005 14:47:14 +0100, bouba <[EMAIL PROTECTED]> wrote:
> what happens if you use this :
> res: grabframe "Test" my-int: make struct! [p [integer!]]
>
> Does it work better?
> Not sure this is your problem, but well, just trying to guess. :)
>
> @+
>
> Bouba
>
> On Wed, 09 Mar 2005 04:44:48 -0800, Bohdan or Rosemary Lechnowsky
> <[EMAIL PROTECTED]> wrote:
> >
> > OK. I finally made some progress on my video capture .dll stuff, but I'm
> > stuck again. Here is the C++ code that works properly calling the routine
> > "grabframe":
> >
> > char *pFrame = NULL;
> > long frameSize;
> > HANDLE h;
> > char *fn = new char[256];
> > char *pTyped;
> > long frameSizeTyped;
> > DWORD bytesWritten;
> > LPDWORD pBytesWritten = &bytesWritten;
> > pFrame = grabFrame("This is me", &frameSize);
> >
> > I think this can safely be whittled down to the following for this example:
> >
> > char *pFrame = NULL;
> > long frameSize;
> > pFrame = grabFrame("This is me", &frameSize);
> >
> > Here is my grabframe routine in Rebol:
> >
> > grabframe: make routine! [
> > "Grab a video frame"
> > t1 [string!]
> > addr [integer!]
> > return: [string!]
> > ] tfcapture "grabFrame"
> >
> > If I try to call it with the following, Windows says Rebol generated an
> > illegal operation:
> >
> > adrs: 0
> > res: grabframe "Test" adrs
> >
> > Here is the grabframe declaration in the .h file if this helps any:
> >
> > extern "C" __declspec(dllexport) char *grabFrame(CString, long *);
> >
> > Any ideas you can give would be greatly appreciated!
> >
> > -Bo
> >
> > --
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> >
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> >
>
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