[REBOL] Problem with routine!

From: amicom::sonic::net at: 9-Mar-2005 4:44

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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