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3.4. Visual Info object
Visual Info objects are used to represent a XVisualInfo structure.
The widget method GetVisualInfo returns a list of Visual Info
objects; the widget method DefaultVisualOfScreen returns a
single Visual Info object. Visual Info objects can be used to create
a colormap using the widget method CreateColormap and to
create an Image object using the Visual Info method
CreateImage.
Visual Info objects (vi_objects) have the following method and variables:
- CreateColormap (alloc) -- Method on Visual Info object
-
Returns
cm_object.
This function corresponds with XCreateColormap.
- CreateImage (depth, format, offset, data, width, height, bitmap_pad, bytes_per_line) -- Method on Visual Info object
-
Returns
im_object.
This function corresponds with XCreateImage.
- bits_per_rgb -- attribute of Visual Info object
-
Field in XVisualInfo structure.
- blue_mask -- attribute of Visual Info object
-
Field in XVisualInfo structure.
- c_class -- attribute of Visual Info object
-
Field in XVisualInfo structure. Alternative name for the
class field.
- class -- attribute of Visual Info object
-
Field in XVisualInfo structure.
- colormap_size -- attribute of Visual Info object
-
Field in XVisualInfo structure.
- depth -- attribute of Visual Info object
-
Field in XVisualInfo structure.
- green_mask -- attribute of Visual Info object
-
Field in XVisualInfo structure.
- red_mask -- attribute of Visual Info object
-
Field in XVisualInfo structure.
- visual -- attribute of Visual Info object
-
Field in XVisualInfo structure.
- visualid -- attribute of Visual Info object
-
Field in XVisualInfo structure.