[1] : The Free On-line Dictionary of Computing (27 SEP 03)

device independent bitmap
     
         dib an image format in which the
        sequence and depth of pixels in the file is not specifically
        related to their layout in any particular device.  this allows
        any device dependent bitmap ddb image to be converted to or
        dib format without loss of information, and this can then
        later be converted to other ddb formats for, e.g., printing or
        display.  rather than requiring converters from each ddb
        format to all other formats, only converters to and from dib
        are needed.
     
        dib images are normally transferred in metafiles, bmp
        files, and the clipboard.
     
        transferring colour bitmaps from one device to another was not
        possible in versions of microsoft windows earlier than 3.0.
        application programs can build dib images without any
        interaction with windows.  if windows lacks a drawing
        primitive, the application can simulate it directly into the
        dib instead of using the existing graphics device interface
        gdi primitives.  unfortunately, under windows versions 3.0
        and 3.1, gdi cannot perform output operations directly to a
        dib.
     
        conversion between dib and ddb is performed by the device
        driver.  where the driver does not have this facility, the
        conversion is performed by gdi but only in monochrome.  dibs
        are slower to use than device dependent bitmaps due to the
        conversions required.
     
        1996-09-20
     
     
see also:
image pixels metafiles bmp clipboard microsoft windows 
application programs graphics device interface gdi device driver 

Bitmap >> B Words
Bitmap, definition of term: Bitmap
bitmap_pag1.html

Independent >> I Words
Independent, definition of term: Independent
independent_pag1.html

Device >> D Words
Device, definition of term: Device
device_pag1.html

Device Driver >> D Words
Device Driver, definition of term: Device Driver
device+driver_pag1.html

Independent Var >> I Words
Independent Var, definition of term: Independent Var
independent+var_pag1.html

Virtual Device >> V Words
Virtual Device, definition of term: Virtual Device
virtual+device_pag1.html

Warning Device >> W Words
Warning Device, definition of term: Warning Device
warning+device_pag1.html

Storage Device >> S Words
Storage Device, definition of term: Storage Device
storage+device_pag1.html

Input Device >> I Words
Input Device, definition of term: Input Device
input+device_pag1.html

Memory Device >> M Words
Memory Device, definition of term: Memory Device
memory+device_pag1.html

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