Rendering Surface

Rendering Surface — OpenGL rendering surface interface

Synopsis

#include <gdk/gdkgl.h>

                    GdkGLDrawable;
gboolean            gdk_gl_drawable_make_current        (GdkGLDrawable *gldrawable,
                                                         GdkGLContext *glcontext);
gboolean            gdk_gl_drawable_is_double_buffered  (GdkGLDrawable *gldrawable);
void                gdk_gl_drawable_swap_buffers        (GdkGLDrawable *gldrawable);
void                gdk_gl_drawable_wait_gl             (GdkGLDrawable *gldrawable);
void                gdk_gl_drawable_wait_gdk            (GdkGLDrawable *gldrawable);
gboolean            gdk_gl_drawable_gl_begin            (GdkGLDrawable *gldrawable,
                                                         GdkGLContext *glcontext);
void                gdk_gl_drawable_gl_end              (GdkGLDrawable *gldrawable);
GdkGLConfig *       gdk_gl_drawable_get_gl_config       (GdkGLDrawable *gldrawable);
void                gdk_gl_drawable_get_size            (GdkGLDrawable *gldrawable,
                                                         gint *width,
                                                         gint *height);
GdkGLDrawable *     gdk_gl_drawable_get_current         (void);

Object Hierarchy

  GInterface
   +----GdkGLDrawable

Description

Details

GdkGLDrawable

typedef struct _GdkGLDrawable GdkGLDrawable;

gdk_gl_drawable_make_current ()

gboolean            gdk_gl_drawable_make_current        (GdkGLDrawable *gldrawable,
                                                         GdkGLContext *glcontext);

Attach an OpenGL rendering context to a gldrawable.

`gldrawable` :	a GdkGLDrawable.
`glcontext` :	a GdkGLContext.
Returns :	TRUE if it is successful, FALSE otherwise.

gdk_gl_drawable_is_double_buffered ()

gboolean            gdk_gl_drawable_is_double_buffered  (GdkGLDrawable *gldrawable);

Returns whether the gldrawable supports the double-buffered visual.

`gldrawable` :	a GdkGLDrawable.
Returns :	TRUE if the double-buffered visual is supported, FALSE otherwise.

gdk_gl_drawable_swap_buffers ()

void                gdk_gl_drawable_swap_buffers        (GdkGLDrawable *gldrawable);

Exchange front and back buffers.

gldrawable :

a GdkGLDrawable.

gdk_gl_drawable_wait_gl ()

void                gdk_gl_drawable_wait_gl             (GdkGLDrawable *gldrawable);

Complete OpenGL execution prior to subsequent GDK drawing calls.

gldrawable :

a GdkGLDrawable.

gdk_gl_drawable_wait_gdk ()

void                gdk_gl_drawable_wait_gdk            (GdkGLDrawable *gldrawable);

Complete GDK drawing execution prior to subsequent OpenGL calls.

gldrawable :

a GdkGLDrawable.

gdk_gl_drawable_gl_begin ()

gboolean            gdk_gl_drawable_gl_begin            (GdkGLDrawable *gldrawable,
                                                         GdkGLContext *glcontext);

Delimits the begining of the OpenGL execution.

`gldrawable` :	a GdkGLDrawable.
`glcontext` :	a GdkGLContext.
Returns :	TRUE if it is successful, FALSE otherwise.

gdk_gl_drawable_gl_end ()

void                gdk_gl_drawable_gl_end              (GdkGLDrawable *gldrawable);

Delimits the end of the OpenGL execution.

gldrawable :

a GdkGLDrawable.

gdk_gl_drawable_get_gl_config ()

GdkGLConfig *       gdk_gl_drawable_get_gl_config       (GdkGLDrawable *gldrawable);

Gets GdkGLConfig with which the gldrawable is configured.

`gldrawable` :	a GdkGLDrawable.
Returns :	the GdkGLConfig.

gdk_gl_drawable_get_size ()

void                gdk_gl_drawable_get_size            (GdkGLDrawable *gldrawable,
                                                         gint *width,
                                                         gint *height);

Fills *width and *height with the size of GL drawable. width or height can be NULL if you only want the other one.

`gldrawable` :	a GdkGLDrawable.
`width` :	location to store drawable's width, or NULL.
`height` :	location to store drawable's height, or NULL.

gdk_gl_drawable_get_current ()

GdkGLDrawable *     gdk_gl_drawable_get_current         (void);

Returns the current GdkGLDrawable.

Returns :

the current GdkGLDrawable or NULL if there is no current drawable.

			GtkGLExt Reference Manual
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