How to write CBITMAP to files
If you have a bitmap handle that has a device-independent bitmap, it is very simple to write a bitmap to the BMP file: in the bitmap content
After writing BitMapInfoHeader information. Three members who need to set BitmapInfoHeader are bftype,
Its value is "BM", BFSIZE, its value is the size of the bitmap, and BFoffbits, its value begins to position
Bit offset.
// WriteDib - Writes a dib to file
// Returns - True on SUCCESS
// szfile - Name of File to Write To
// HDIB - HANDLE OF THE DIB
Bool WriteDIB (LPTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTSTS
{
BitmapfileHeader HDR;
LpbitmapInfoHeader LPBI;
IF (! HDIB)
Return False;
CFILE FILE;
IF (! file.open (szfile, cfile :: modewrite | cfile :: modete)))
Return False;
LPBI = (lpbitmapinfoheader) HDIB;
Int ncolors = 1 << lpbi-> bibitcount;
// Fill in the Fields of the file header
Hdr.bfType = (Word) ('M' << 8) | 'b'); // is always "BM"
HDr.bfsize = "globalsize" (hdib) sizeof (HDR); hdr.bfreserved1 = "0;"
Hdr.bfreserved2 = "0;" HDR.BFOFFBITS = "(SizeOf (HDR) LPBI-> Bisize
NCOLORS * SIZEOF (RGBQUAD));
// Write the File HEADER
File.write (& HDR, SIZEOF (HDR));
// Write the dib header and the bits
File.write (lpbi, globalsize (hdib));
Return True;
}
