In the implementation of the WPBitmap class in the Workplace Shell, the wpReadImageFile method reads the data from the image file, extracts the bitmap that most closely matches the characteristics of the display, and saves the data associated with that image. For any other image type, the wpReadImageFile method should read the data from the image file, select the appropriate image (if the file can contain images for multiple resolution displays), and convert the image data to bitmap format.