Source code for capturing video images during playback

Bool cdxgraph: snapshotbitmap (const char * OUTFILE)

{

If (mbasicvideo)

{

Long bitmapsize = 0;

If (succeeded (mbasicvideo-> getcurrentimage (& bitmapsize, 0 )))

{

Bool pass = false;

Unsigned char * buffer = new unsigned char [bitmapsize];

If (SUCCEEDED (mBasicVideo-> GetCurrentImage (& bitmapSize, (long *) buffer )))

{

BITMAPFILEHEADER hdr;

LPBITMAPINFOHEADER lpbi;

Lpbi = (LPBITMAPINFOHEADER) buffer;

Int nColors = 1 <lpbi-> biBitCount;

If (nColors> 256) nColors = 0;

Hdr. bfType = (WORD) ('M' <8) | 'B'); // always is "BM"

Hdr. bfSize = bitmapSize + sizeof (hdr );

Hdr. bfReserved1 = 0;

Hdr. bfReserved2 = 0;

Hdr. bfOff Bits = (DWORD) (sizeof (BITMAPFILEHEADER) + lpbi-> biSize + nColors * sizeof (RGBQUAD ));

Cfile bitma pfile (OUTFILE, cfile: modereadwrite | cfile: modecreate | cfile: typebinary );

Bitmapfile. Write (& HDR, sizeof (bitmapfileheader ));

Bitmapfile. Write (buffer, bitmapsize );

Bitmapfile. Close ();

Pass = true;

}

Delete [] buffer;

Return pass;

}

}

Return false;

}}