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