The WbmpImage method writes the image into Wireless Bitmap (Wbmp) format.

WbmpImage sFileName


String specifying the path to the file to write to. If sFileName is a zero length string, the result WBMP image will be produced as SAFEARRAY return value. You can use this for generation of images with ASP and sending them to client instead of writing to a file.

Return Value

This method returns binary WBMP image, if sFileName parameter is zero length string.


Your image sould be a monochrome bitmap (b/w): the number of indexed colors specified in the CreateImage calling should be 2. Or, in case of big number of colors, you should transform your image to b/w: the ChangePaletteSize and BuildPalette or ApplyPalette methods.