XGetVisualInfo(3X11)                         XGetVisualInfo(3X11)



NAME
     XGetVisualInfo, XMatchVisualInfo, XVisualIDFromVisual -
     obtain visual information

SYNTAX
     XVisualInfo *XGetVisualInfo(display, vinfo_mask,
     vinfo_template, nitems_return)
           Display *display;
           long vinfo_mask;
           XVisualInfo *vinfo_template;
           int *nitems_return;

     Status XMatchVisualInfo(display, screen, depth, class,
     vinfo_return)
           Display *display;
           int screen;
           int depth;
           int class;
           XVisualInfo *vinfo_return;

     VisualID XVisualIDFromVisual(visual)
            Visual *visual;

ARGUMENTS
     class     Specifies the class of the screen.

     depth     Specifies the depth of the screen.

     display   Specifies the connection to the XWIN server.

     nitems_return
               Returns the number of matching visual structures.

     screen    Specifies the screen.

     visual    Specifies the visual type.

     vinfo_mask
               Specifies the visual mask value.

     vinfo_return
               Returns the matched visual information.

     vinfo_template
               Specifies the visual attributes that are to be
               used in matching the visual structures.

DESCRIPTION
     The XGetVisualInfo function returns a list of visual struc-
     tures that match the attributes specified by vinfo_template.
     If no visual structures match the template using the speci-
     fied vinfo_mask, XGetVisualInfo returns a NULL.  To free the



XWIN 3.0               Last change: 9/1/88                 .ie t

XGetVisualInfo(3X11)                         XGetVisualInfo(3X11)



     data returned by this function, use XFree.

     The XMatchVisualInfo function returns the visual information
     for a visual that matches the specified depth and class for
     a screen.  Because multiple visuals that match the specified
     depth and class can exist, the exact visual chosen is unde-
     fined.  If a visual is found, XMatchVisualInfo returns
     nonzero and the information on the visual to vinfo_return.
     Otherwise, when a visual is not found, XMatchVisualInfo
     returns zero.

     The XVisualIDFromVisual function returns the visual ID for
     the specified visual type.

SEE ALSO
     Xlib - C Language X Interface







































XWIN 3.0               Last change: 9/1/88                 .ie t

XGetVisualInfo(3X11)                         XGetVisualInfo(3X11)























































XWIN 3.0               Last change: 9/1/88                 .ie t