1027     \fn bool QGLFramebufferObject::bindDefault()

  1028     \internal

  1029 

  1030     Switches rendering back to the default, windowing system provided

  1031     framebuffer.

  1032     Returns true upon success, false otherwise.

  1033 

  1034     \sa bind(), release()

  1035 */

  1036 bool QGLFramebufferObject::bindDefault()

  1037 {

  1038     QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext());

  1039 

  1040     if (ctx) {

  1041         bool ext_detected = (QGLExtensions::glExtensions() & QGLExtensions::FramebufferObject);

  1042         if (!ext_detected || (ext_detected && !qt_resolve_framebufferobject_extensions(ctx)))

  1043             return false;

  1044 

  1045         ctx->d_ptr->current_fbo = ctx->d_ptr->default_fbo;

  1046         glBindFramebuffer(GL_FRAMEBUFFER_EXT, ctx->d_ptr->default_fbo);

  1047 #ifdef QT_DEBUG

  1048     } else {

  1049         qWarning("QGLFramebufferObject::bindDefault() called without current context.");

  1050 #endif

  1051     }

  1052 

  1053     return ctx != 0;

  1054 }

  1055 

  1056 /*!