|Internet media type|
|Developed by||WAP Forum|
|Type of format||Image file formats|
Wireless Application Protocol Bitmap Format (shortened to Wireless Bitmap and with file extension .wbmp) is a monochrome graphics file format optimized for mobile computing devices.
WBMP images are monochrome (black & white) so that the image size is kept to a minimum. A black pixel is denoted by 0 and a white pixel is denoted by 1.
|Field name||Field type||Size (in bytes)||Purpose|
|Type||uintvar||variable||Type of the image, and is 0 for monochrome bitmaps.|
|Fixed header||byte||1||Reserved. Always 0.|
|Width||uintvar||variable||Width of the image in pixels.|
|Height||uintvar||variable||Height of the image in pixels.|
|Data||byte array||variable||Data bytes arranged in rows – one bit per pixel. A black pixel is denoted by 0 and a white pixel is denoted by 1. The pixel order within a byte is MLP (most left pixel) = MSB (most significant bit). Where the row length is not divisible by 8, the row is 0-padded to the byte boundary.|