Rendering Surface

Rendering Surface — OpenGL rendering surface interface

Functions

Types and Values

Object Hierarchy

    GInterface
    ╰── GdkGLDrawable

Includes

#include <gdk/gdkgl.h>

Description

Functions

gdk_gl_drawable_make_current ()

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

Attach an OpenGL rendering context to a gldrawable .

Parameters

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.

Parameters

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.

Parameters

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.

Parameters

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.

Parameters

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.

Parameters

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.

Parameters

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.

Parameters

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.

Parameters

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.

Types and Values

GdkGLDrawable

typedef struct _GdkGLDrawable GdkGLDrawable;