[GtkGLExt] problem with share context opengl and Windows Vista

[Moises <ammoises yahoo com mx>]

Hello again.

I am testing the example of share-list.c of gtkglext, I haven't problem compiling this example in linux or windows xp,when I run the example in Linux or Windows XP that works well. The problem in vista is when run the program because when run the share-list.exe only can look the first viewport and the other two viewport I can't look and the program get me the next error. 

(share_list.exe:2108): GtkGLExt-WARNING **: cannot create GdkGLContext

(share_list.exe:2108): GdkGLExt-CRITICAL **: file gdkglwindow-win32.c: line 297
(gdk_gl_window_impl_win32_make_context_current):assertion `GDK_IS_GL_CONTEXT_IM
PL_WIN32 (glcontext)' failed

(share_list.exe:2108): GtkGLExt-WARNING **: cannot create GdkGLContext

(share_list.exe:2108): GdkGLExt-CRITICAL **: file gdkglwindow-win32.c: line 297
(gdk_gl_window_impl_win32_make_context_current): assertion `GDK_IS_GL_CONTEXT_IM
PL_WIN32 (glcontext)' failed

(share_list.exe:2108): GtkGLExt-WARNING **: cannot create GdkGLContext

(share_list.exe:2108): GdkGLExt-CRITICAL **: file gdkglwindow-win32.c: line 297
(gdk_gl_window_impl_win32_make_context_current): assertion `GDK_IS_GL_CONTEXT_IM
PL_WIN32 (glcontext)' failed

(share_list.exe:2108): GtkGLExt-WARNING **: cannot create GdkGLContext

(share_list.exe:2108): GdkGLExt-CRITICAL **: file gdkglwindow-win32.c: line 297
(gdk_gl_window_impl_win32_make_context_current): assertion `GDK_IS_GL_CONTEXT_IM
PL_WIN32 (glcontext)' failed

(share_list.exe:2108): GtkGLExt-WARNING **: cannot create GdkGLContext

(share_list.exe:2108): GdkGLExt-CRITICAL **: file gdkglwindow-win32.c: line 297
(gdk_gl_window_impl_win32_make_context_current): assertion `GDK_IS_GL_CONTEXT_IM
PL_WIN32 (glcontext)' failed

(share_list.exe:2108): GtkGLExt-WARNING **: cannot create GdkGLContext

(share_list.exe:2108): GdkGLExt-CRITICAL **: file gdkglwindow-win32.c: line 297
(gdk_gl_window_impl_win32_make_context_current): assertion `GDK_IS_GL_CONTEXT_IM
PL_WIN32 (glcontext)' failed

The problem is that I can not share the context of opengl.

I find information about this error in the Internet but did not find much information, I found that only occurs when running GtkRadiant in Windows vista and their solution the problem reintalar GtkRadian or Gtk runtime.

can someone help me with this error?




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