예제 #1
0
 /**
  * Sets the OpenGL context associated with this GLCanvas to be the current GL context.
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
  *       <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
  *     </ul>
  */
 public void setCurrent() {
   checkWidget();
   if (GLX.glXGetCurrentContext() == context) return;
   int /*long*/ window = OS.GTK_WIDGET_WINDOW(handle);
   int /*long*/ xDisplay = OS.gdk_x11_drawable_get_xdisplay(window);
   GLX.glXMakeCurrent(xDisplay, xWindow, context);
 }
예제 #2
0
 /**
  * Returns a boolean indicating whether the receiver's OpenGL context is the current context.
  *
  * @return true if the receiver holds the current OpenGL context, false otherwise
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
  *       <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
  *     </ul>
  */
 public boolean isCurrent() {
   checkWidget();
   return GLX.glXGetCurrentContext() == context;
 }