[chronojump] Webcam: Fixed button_video_preview_visible after encoder capture

[Xavier de Blas <xaviblas src gnome org>]

commit d5775ddc563028efe6bb6bac12f879218abd659a
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon Jul 8 12:13:51 2019 +0200

    Webcam: Fixed button_video_preview_visible after encoder capture

 src/gui/webcam.cs | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/gui/webcam.cs b/src/gui/webcam.cs
index cf08ab1b..9b9b0d60 100644
--- a/src/gui/webcam.cs
+++ b/src/gui/webcam.cs
@@ -377,6 +377,7 @@ public partial class ChronoJumpWindow
                if(webcamEndParams.uniqueID != -1 && ! resultExit.success)
                        new DialogMessage(Constants.MessageTypes.WARNING, resultExit.error);
 
+               button_video_preview_visible (webcamEndParams.guiContactsEncoder, true);
                LogB.Information(string.Format("calling button_video_play_this_test_sensitive {0}-{1}-{2}",
                                        webcamEndParams.guiContactsEncoder, webcamManage.ReallyStarted, 
resultExit.success));
                button_video_play_this_test_sensitive (webcamEndParams.guiContactsEncoder, 
webcamManage.ReallyStarted && resultExit.success);