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86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
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#ifndef __GDK_VISUAL_H__
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#define __GDK_VISUAL_H__
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#include <gdk/gdktypes.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* Types of visuals.
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* StaticGray:
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* Grayscale:
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* StaticColor:
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* PseudoColor:
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* TrueColor:
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* DirectColor:
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*/
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typedef enum
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{
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GDK_VISUAL_STATIC_GRAY,
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GDK_VISUAL_GRAYSCALE,
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GDK_VISUAL_STATIC_COLOR,
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GDK_VISUAL_PSEUDO_COLOR,
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GDK_VISUAL_TRUE_COLOR,
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GDK_VISUAL_DIRECT_COLOR
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} GdkVisualType;
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/* The visual type.
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* "type" is the type of visual this is (PseudoColor, TrueColor, etc).
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* "depth" is the bit depth of this visual.
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* "colormap_size" is the size of a colormap for this visual.
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* "bits_per_rgb" is the number of significant bits per red, green and blue.
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* The red, green and blue masks, shifts and precisions refer
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* to value needed to calculate pixel values in TrueColor and DirectColor
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* visuals. The "mask" is the significant bits within the pixel. The
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* "shift" is the number of bits left we must shift a primary for it
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* to be in position (according to the "mask"). "prec" refers to how
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* much precision the pixel value contains for a particular primary.
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*/
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struct _GdkVisual
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{
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GdkVisualType type;
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gint depth;
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GdkByteOrder byte_order;
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gint colormap_size;
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gint bits_per_rgb;
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guint32 red_mask;
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gint red_shift;
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gint red_prec;
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guint32 green_mask;
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gint green_shift;
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gint green_prec;
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guint32 blue_mask;
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gint blue_shift;
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gint blue_prec;
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};
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gint gdk_visual_get_best_depth (void);
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GdkVisualType gdk_visual_get_best_type (void);
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GdkVisual* gdk_visual_get_system (void);
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GdkVisual* gdk_visual_get_best (void);
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GdkVisual* gdk_visual_get_best_with_depth (gint depth);
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GdkVisual* gdk_visual_get_best_with_type (GdkVisualType visual_type);
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GdkVisual* gdk_visual_get_best_with_both (gint depth,
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GdkVisualType visual_type);
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/* Actually, these are no-ops... */
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GdkVisual* gdk_visual_ref (GdkVisual *visual);
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void gdk_visual_unref (GdkVisual *visual);
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void gdk_query_depths (gint **depths,
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gint *count);
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void gdk_query_visual_types (GdkVisualType **visual_types,
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gint *count);
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GList* gdk_list_visuals (void);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GDK_VISUAL_H__ */
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