| XGetVisualInfo(3) | Library Functions Manual | XGetVisualInfo(3) | 
XVisualInfo *XGetVisualInfo(Display *display, long vinfo_mask, XVisualInfo *vinfo_template, int *nitems_return);
Status XMatchVisualInfo(Display *display, int screen, int depth, int class, XVisualInfo *vinfo_return);
VisualID XVisualIDFromVisual(Visual *visual);
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, 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.
/* 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;
        int depth;
        int class;
        unsigned long red_mask;
        unsigned long green_mask;
        unsigned long blue_mask;
        int colormap_size;
        int bits_per_rgb;
} XVisualInfo;
| X Version 11 | XLIB FUNCTIONS |