X-Git-Url: https://git.cinelerra-gg.org/git/?a=blobdiff_plain;ds=sidebyside;f=cinelerra-5.1%2Fcinelerra%2Fvwindowgui.C;h=8370b4aaf555af96ded1b6967d7264ef29af83e3;hb=82931d63c508e5953e9d5a19be76b60ec0e146c5;hp=7fcd19ad43aaef52ae292114a7b0cd2fa5e78c0a;hpb=b5bfe3e40a7255ae60a21d885587ada6e145e3d5;p=goodguy%2Fcinelerra.git

diff --git a/cinelerra-5.1/cinelerra/vwindowgui.C b/cinelerra-5.1/cinelerra/vwindowgui.C
index 7fcd19ad..8370b4aa 100644
--- a/cinelerra-5.1/cinelerra/vwindowgui.C
+++ b/cinelerra-5.1/cinelerra/vwindowgui.C
@@ -835,7 +835,7 @@ int VWindowCanvas::scope_on()
 
 void VWindowCanvas::draw_scope(VFrame *output)
 {
-	if( gui->edit_panel->scope_dialog )
+	if( gui->edit_panel->scope_dialog && output )
 		gui->edit_panel->scope_dialog->process(output);
 }