Bitmaps created using Win98 Imaging components, such as Imaging for Windows (Win98) or IMGEDIT.OCX, create a BMP that cannot be read in Windows 95, Windows NT 4.0, or Windows 2000 using MSPAINT.EXE or the Visual Basic PictureBox control.
You would receive the folling error message:
Error 481: Invalid Picture When Viewing BMP Created Using Kodak Imaging in Win98
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The Win98 Imaging components save out the bitmaps using the v5.0 BITMAPINFOHEADER structure.
Following is the VC++ BITMAPINFOHEADER v5.0 structure:
typedef struct {
DWORD bV5Size;
LONG bV5Width;
LONG bV5Height;
WORD bV5Planes;
WORD bV5BitCount;
DWORD bV5Compression;
DWORD bV5SizeImage;
LONG bV5XPelsPerMeter;
LONG bV5YPelsPerMeter;
DWORD bV5ClrUsed;
DWORD bV5ClrImportant;
DWORD bV5RedMask;
DWORD bV5GreenMask;
DWORD bV5BlueMask;
DWORD bV5AlphaMask;
DWORD bV5CSType;
CIEXYZTRIPLE bV5Endpoints;
DWORD bV5GammaRed;
DWORD bV5GammaGreen;
DWORD bV5GammaBlue;
DWORD bV5Intent;
DWORD bV5ProfileData;
DWORD bV5ProfileSize;
DWORD bV5Reserved;
} BITMAPV5HEADER, FAR *LPBITMAPV5HEADER, *PBITMAPV5HEADER;
The members of this structure, starting with bV5Size through bV5ClrImportant, are the same as those found in a normal BITMAPINFOHEADER structure, which is readable in Windows 95, Windows NT, and Windows 2000. The remainder of the BITMAPINFOHEADER structure contains new members where older applications would expect to find the start of the Color Table.
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There are three workarounds for this problem:
| • | Open the resultant BMP using the 'Imaging for Windows' application on either Windows 95, Windows NT, or Windows 2000, and save it again. This saves the bitmap in the standard BMP format.
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| • | Open the resultant BMP using the IMGEDIT control in Windows 95, Windows NT, or Windows 2000 and do a SaveAs on the image to again save it out as a BMP. This saves the bitmap in the standard BMP format.
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| • | Create a routine that reads the BMP file and converts it back to the original BITMAPINFOHEADER structure. |
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This problem has been reported as a bug to Eastman Kodak, makers of the Imaging controls.
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