osf1 man page for xgetvisualinfo

XGetVisualInfo(3X11)													      XGetVisualInfo(3X11)

NAME
       XGetVisualInfo, XMatchVisualInfo, XVisualIDFromVisual, XVisualInfo - obtain visual information and visual structure

SYNOPSIS
       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
       Specifies  the  class  of the screen.  Specifies the depth of the screen.  Specifies the connection to the X server.  Returns the number of
       matching visual structures.  Specifies the screen.  Specifies the visual type.  Specifies the visual mask value.  Returns the matched  vis-
       ual information.  Specifies the visual attributes that are to be used in matching the visual structures.

DESCRIPTION
       The  XGetVisualInfo  function returns a list of visual structures that have attributes equal to the attributes specified by vinfo_template.
       If no visual structures match the template using the specified vinfo_mask, XGetVisualInfo returns a NULL. To free the 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 undefined. If a visual is found,  XMatchVi-
       sualInfo 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.

STRUCTURES
       The XVisualInfo structure contains:

       /* Visual information mask bits */

       #define	 VisualNoMask		  0x0
       #define	 VisualIDMask		  0x1
       #define	 VisualScreenMask	  0x2
       #define	 VisualDepthMask	  0x4
       #define	 VisualClassMask	  0x8
       #define	 VisualRedMaskMask	  0x10
       #define	 VisualGreenMaskMask	  0x20
       #define	 VisualBlueMaskMask	  0x40
       #define	 VisualColormapSizeMask   0x80
       #define	 VisualBitsPerRGBMask	  0x100
       #define	 VisualAllMask		  0x1FF

       /* Values */

       typedef struct {
	       Visual *visual;
	       VisualID visualid;
	       int screen;
	       unsigned int depth;
	       int class;
	       unsigned long red_mask;
	       unsigned long green_mask;
	       unsigned long blue_mask;
	       int colormap_size;
	       int bits_per_rgb; } XVisualInfo;

SEE ALSO
       XFree(3X11)

       Xlib -- C Language X Interface

															      XGetVisualInfo(3X11)