|  |  |  | GtkGLExt Reference Manual |  | 
|---|
| OpenGL WindowOpenGL Window — OpenGL window which is located on-screen | 
#include <gdk/gdkgl.h>
            GdkGLWindow;
GdkGLWindow* gdk_gl_window_new              (GdkGLConfig *glconfig,
                                             GdkWindow *window,
                                             const int *attrib_list);
void        gdk_gl_window_destroy           (GdkGLWindow *glwindow);
GdkWindow*  gdk_gl_window_get_window        (GdkGLWindow *glwindow);
GdkGLWindow* gdk_window_set_gl_capability   (GdkWindow *window,
                                             GdkGLConfig *glconfig,
                                             const int *attrib_list);
void        gdk_window_unset_gl_capability  (GdkWindow *window);
gboolean    gdk_window_is_gl_capable        (GdkWindow *window);
GdkGLWindow* gdk_window_get_gl_window       (GdkWindow *window);
#define     gdk_window_get_gl_drawable      (window)
GdkGLWindow* gdk_gl_window_new (GdkGLConfig *glconfig, GdkWindow *window, const int *attrib_list);
Creates an on-screen rendering area. attrib_list is currently unused. This must be set to NULL or empty (first attribute of None). See GLX 1.3 spec.
| glconfig : | a GdkGLConfig. | 
| window : | the GdkWindow to be used as the rendering area. | 
| attrib_list : | this must be set to NULL or empty (first attribute of None). | 
| Returns : | the new GdkGLWindow. | 
void gdk_gl_window_destroy (GdkGLWindow *glwindow);
Destroys the OpenGL resources associated with glwindow and decrements glwindow's reference count.
| glwindow : | a GdkGLWindow. | 
GdkWindow* gdk_gl_window_get_window (GdkGLWindow *glwindow);
Returns the GdkWindow associated with glwindow.
Notice that GdkGLWindow is not GdkWindow, but another GdkDrawable which have an associated GdkWindow.
| glwindow : | a GdkGLWindow. | 
| Returns : | the GdkWindow associated with glwindow. | 
GdkGLWindow* gdk_window_set_gl_capability (GdkWindow *window, GdkGLConfig *glconfig, const int *attrib_list);
Set the OpenGL-capability to the window. This function creates a new GdkGLWindow held by the window. attrib_list is currently unused. This must be set to NULL or empty (first attribute of None).
| window : | the GdkWindow to be used as the rendering area. | 
| glconfig : | a GdkGLConfig. | 
| attrib_list : | this must be set to NULL or empty (first attribute of None). | 
| Returns : | the GdkGLWindow used by the window if it is successful, NULL otherwise. | 
void gdk_window_unset_gl_capability (GdkWindow *window);
Unset the OpenGL-capability of the window. This function destroys the GdkGLWindow held by the window.
| window : | a GdkWindow. | 
gboolean gdk_window_is_gl_capable (GdkWindow *window);
Returns whether the window is OpenGL-capable.
| window : | a GdkWindow. | 
| Returns : | TRUE if the window is OpenGL-capable, FALSE otherwise. | 
GdkGLWindow* gdk_window_get_gl_window (GdkWindow *window);
Returns the GdkGLWindow held by the window.
| window : | a GdkWindow. | 
| Returns : | the GdkGLWindow. | 
#define gdk_window_get_gl_drawable(window)
Returns the GdkGLDrawable held by the window. In fact, this is macro that casts the result of gdk_window_get_gl_window to GdkGLDrawable.
| window : | a GdkGLWindow. | 
| Returns : | the GdkGLDrawable. | 
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