X Window System routines: Querying visual types

Table 1 provides the routines for querying visual types.

Table 1. Querying visual types
Routine	Description
XGetVisualInfo()	Gets a list of visual information structures.
XListDepths()	Determines the number of depths that are available on a given screen.
XListPixmapFormats()	Gets the pixmap format information for a given display.
XMatchVisualInfo()	Gets visual information matching screen depth and class.
XPixmapFormatValues()	Gets the pixmap format information for a given display.