From 0be378605d656525d8fbd909367a45e0f47311f8 Mon Sep 17 00:00:00 2001
From: Stephan Sundermann <stephansundermann@gmail.com>
Date: Fri, 13 Jul 2012 15:14:31 +0200
Subject: [PATCH] Vocaluxe no longer crashes if no webcam was found Webcam
 related slides and preview are no longer shown in video options screen if no
 webcam was found

---
 Vocaluxe/Lib/Webcam/CAForgeNet.cs       |  2 ++
 Vocaluxe/Screens/CScreenOptionsVideo.cs | 44 ++++++++++++++-----------
 2 files changed, 26 insertions(+), 20 deletions(-)

diff --git a/Vocaluxe/Lib/Webcam/CAForgeNet.cs b/Vocaluxe/Lib/Webcam/CAForgeNet.cs
index 3e798c37..1dd9a97f 100644
--- a/Vocaluxe/Lib/Webcam/CAForgeNet.cs
+++ b/Vocaluxe/Lib/Webcam/CAForgeNet.cs
@@ -135,6 +135,8 @@ namespace Vocaluxe.Lib.Webcam
 
             if (_WebcamDevices == null)
                 return false;
+            if (_WebcamDevices.Count < 1)
+                return false;
 
             //No MonikerString found, try first webcam
             if (Config.MonikerString == String.Empty)
diff --git a/Vocaluxe/Screens/CScreenOptionsVideo.cs b/Vocaluxe/Screens/CScreenOptionsVideo.cs
index fb4f3e4f..3e15a258 100644
--- a/Vocaluxe/Screens/CScreenOptionsVideo.cs
+++ b/Vocaluxe/Screens/CScreenOptionsVideo.cs
@@ -167,30 +167,34 @@ namespace Vocaluxe.Screens
 
             if (devices != null)
             {
-                _DeviceNr = 0;
-                _CapabilityNr = 0;
-                GetFirstConfiguredWebcamDevice(ref _DeviceNr, ref _CapabilityNr);
-
-                foreach (SWebcamDevice d in devices)
+                if (devices.Length > 0)
                 {
-                    SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].AddValue(d.Name);
-                }
-                SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Selection = _DeviceNr;
+                    _DeviceNr = 0;
+                    _CapabilityNr = 0;
+                    GetFirstConfiguredWebcamDevice(ref _DeviceNr, ref _CapabilityNr);
 
-                foreach (SCapabilities c in devices[_DeviceNr].Capabilities)
-                {
-                    SelectSlides[htSelectSlides(SelectSlideWebcamCapabilities)].AddValue(c.Width.ToString() + " x " + c.Height.ToString() + " @ " + c.Framerate.ToString() + " FPS ");
+                    foreach (SWebcamDevice d in devices)
+                    {
+                        SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].AddValue(d.Name);
+                    }
+                    SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Selection = _DeviceNr;
+
+                    foreach (SCapabilities c in devices[_DeviceNr].Capabilities)
+                    {
+                        SelectSlides[htSelectSlides(SelectSlideWebcamCapabilities)].AddValue(c.Width.ToString() + " x " + c.Height.ToString() + " @ " + c.Framerate.ToString() + " FPS ");
+                    }
+                    _Config.MonikerString = devices[SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Selection].MonikerString;
+                    _Config.Width = devices[SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Selection].Capabilities[SelectSlides[htSelectSlides(SelectSlideWebcamCapabilities)].Selection].Width;
+                    _Config.Height = devices[SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Selection].Capabilities[SelectSlides[htSelectSlides(SelectSlideWebcamCapabilities)].Selection].Height;
+                    _Config.Framerate = devices[SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Selection].Capabilities[SelectSlides[htSelectSlides(SelectSlideWebcamCapabilities)].Selection].Framerate;
+                    CWebcam.Close();
+                    CWebcam.Select(CConfig.WebcamConfig);
+                    CWebcam.Start();
                 }
-                _Config.MonikerString = devices[SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Selection].MonikerString;
-                _Config.Width = devices[SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Selection].Capabilities[SelectSlides[htSelectSlides(SelectSlideWebcamCapabilities)].Selection].Width;
-                _Config.Height = devices[SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Selection].Capabilities[SelectSlides[htSelectSlides(SelectSlideWebcamCapabilities)].Selection].Height;
-                _Config.Framerate = devices[SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Selection].Capabilities[SelectSlides[htSelectSlides(SelectSlideWebcamCapabilities)].Selection].Framerate;
-                CWebcam.Close();
-                CWebcam.Select(CConfig.WebcamConfig);
-                CWebcam.Start();
             }
-            SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Visible = (devices != null);
-            SelectSlides[htSelectSlides(SelectSlideWebcamCapabilities)].Visible = (devices != null);
+            SelectSlides[htSelectSlides(SelectSlideWebcamDevices)].Visible = (devices != null && devices.Length > 0);
+            SelectSlides[htSelectSlides(SelectSlideWebcamCapabilities)].Visible = (devices != null && devices.Length > 0);
+            Statics[htStatics(StaticWebcamOutput)].Visible = (devices != null && devices.Length > 0);
         }
 
         private void SaveConfig()