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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:
- bits_per_rgb
- Field in XVisualInfo structure.
- blue_mask
- Field in XVisualInfo structure.
- c_class
- Field in XVisualInfo structure. Alternative name for the
class
field.
- class
- Field in XVisualInfo structure.
- colormap_size
- Field in XVisualInfo structure.
- depth
- Field in XVisualInfo structure.
- green_mask
- Field in XVisualInfo structure.
- red_mask
- Field in XVisualInfo structure.
- visual
- Field in XVisualInfo structure.
- visualid
- Field in XVisualInfo structure.
- CreateColormap (alloc)
- Returns
cm_object
.
This function corresponds with XCreateColormap
.
- CreateImage (depth, format, offset, data, width, height, bitmap_pad, bytes_per_line)
- Returns
im_object
.
This function corresponds with XCreateImage
.
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