The RDIB format consists of a Windows 3.0 or Presentation Manager 1.2 DIB enclosed in a “RIFF” chunk. Enclosing the DIB in a “RIFF” chunk allows the file to be consistently identified; for example, an “INFO” list can be included in the file.
The “RDIB” form is defined as follows, using the standard RIFF form definition notation:
<RDIB-form>
–RIFF ('RDIB'// RIFF header
data( <DIB-data> )) // Bitmap data in DIB format
The <DIB-data> format is defined in “Device Independent Bitmap (DIB) File Format,” earlier in this chapter.