Approved
Last Updated: 16 Oct 2019 14:06 by ADMIN
01.Exception
02. 
03.System.NullReferenceException: 'Object reference not set to an instance of an object.'
04. 
05.Stack trace.
06. 
07."   at MediaFoundation.Misc.BitmapInfoHeader.CopyFrom(BitmapInfoHeader bmi)"
08. 
09.CallStack
10. 
11.     MediaFoundation.dll!MediaFoundation.Misc.BitmapInfoHeader.CopyFrom(MediaFoundation.Misc.BitmapInfoHeader bmi)    Unknown
12.     MediaFoundation.dll!MediaFoundation.Misc.BMMarshaler.MarshalNativeToManaged(System.IntPtr pNativeData)    Unknown
13.     [Native to Managed Transition]   
14.     [Managed to Native Transition]   
15.     Telerik.Windows.MediaFoundation.dll!Telerik.Windows.MediaFoundation.WebCamPresenter.TakeSnapshot()    Unknown
16.     Telerik.WinControls.RadWebCam.dll!Telerik.WinControls.UI.RadWebCam.TakeSnapshot()    Unknown
17.     Telerik.WinControls.RadWebCam.dll!Telerik.WinControls.UI.RadWebCamElement.TakeSnapshot_Click(object sender, System.EventArgs e)    Unknown
18.     Telerik.WinControls.dll!Telerik.WinControls.RadElement.OnClick(System.EventArgs e)    Unknown
19.     Telerik.WinControls.UI.dll!Telerik.WinControls.UI.RadButtonItem.OnClick(System.EventArgs e)    Unknown
20.     Telerik.WinControls.UI.dll!Telerik.WinControls.UI.RadButtonElement.OnClick(System.EventArgs e)    Unknown
21.     Telerik.WinControls.dll!Telerik.WinControls.RadElement.DoClick(System.EventArgs e)    Unknown
22.     Telerik.WinControls.dll!Telerik.WinControls.RadElement.RaiseBubbleEvent(Telerik.WinControls.RadElement sender, Telerik.WinControls.RoutedEventArgs args)    Unknown
23.     Telerik.WinControls.dll!Telerik.WinControls.RadItem.RaiseBubbleEvent(Telerik.WinControls.RadElement sender, Telerik.WinControls.RoutedEventArgs args)    Unknown
24.     Telerik.WinControls.dll!Telerik.WinControls.RadElement.RaiseRoutedEvent(Telerik.WinControls.RadElement sender, Telerik.WinControls.RoutedEventArgs args)    Unknown
25.     Telerik.WinControls.dll!Telerik.WinControls.RadElement.DoMouseUp(System.Windows.Forms.MouseEventArgs e)    Unknown
26.     Telerik.WinControls.dll!Telerik.WinControls.ComponentInputBehavior.OnMouseUp(System.Windows.Forms.MouseEventArgs e)    Unknown
27.     Telerik.WinControls.dll!Telerik.WinControls.RadControl.OnMouseUp(System.Windows.Forms.MouseEventArgs e)    Unknown
28.     System.Windows.Forms.dll!System.Windows.Forms.Control.WmMouseUp(ref System.Windows.Forms.Message m, System.Windows.Forms.MouseButtons button, int clicks)    Unknown
29.     System.Windows.Forms.dll!System.Windows.Forms.Control.WndProc(ref System.Windows.Forms.Message m)    Unknown
30.     System.Windows.Forms.dll!System.Windows.Forms.ScrollableControl.WndProc(ref System.Windows.Forms.Message m)    Unknown
31.     Telerik.WinControls.dll!Telerik.WinControls.RadControl.WndProc(ref System.Windows.Forms.Message m)    Unknown
32.     System.Windows.Forms.dll!System.Windows.Forms.Control.ControlNativeWindow.OnMessage(ref System.Windows.Forms.Message m)    Unknown
33.     System.Windows.Forms.dll!System.Windows.Forms.Control.ControlNativeWindow.WndProc(ref System.Windows.Forms.Message m)    Unknown
34.     System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.Callback(System.IntPtr hWnd, int msg, System.IntPtr wparam, System.IntPtr lparam)    Unknown
35.     [Native to Managed Transition]   
36.     [Managed to Native Transition]   
37.     System.Windows.Forms.dll!System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(System.IntPtr dwComponentID, int reason, int pvLoopData)    Unknown
38.     System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(int reason, System.Windows.Forms.ApplicationContext context)    Unknown
39.     System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoop(int reason, System.Windows.Forms.ApplicationContext context)    Unknown
40.     System.Windows.Forms.dll!System.Windows.Forms.Application.RunDialog(System.Windows.Forms.Form form)    Unknown
41.     System.Windows.Forms.dll!System.Windows.Forms.Form.ShowDialog(System.Windows.Forms.IWin32Window owner)    Unknown
42.>    pulse.move.factories.dll!pulse.move.factories.views.ViewFactory.ShowWebCam(System.Windows.Forms.Form owner) Line 952    C#

The exception bubbles up to the ViewFactory.ShowWebCam() method, but it doesn't get trapped by that method's try/catch or in your OnWebCamError event.

To reproduce (a bit random)

Im using a logitech HD C270, usb cam

There's often a period of initialization where the cam shows a white or black screen. Sometimes, pressing the control's capture button during this period causes the exception.

I reproduced it in the telerik Quick Start Framework, web cam app. The following code window is the stack trace of when it happened.

I understand that this is within Media Foundation code, and I'm guessing the capture is asynchronous, but is there any way that your control can catch the error as I know my users will be onto the support department when it happens?

Or is there any way to disable your embedded buttons until an image actually appears? I've tried trapping some paint events within the control but failed.

There's also no indication of what's happening during the initialization period, which has taken 10-20 secs occasionally, so it's very tempting to press those buttons :)

001.See the end of this message for details on invoking
002.just-in-time (JIT) debugging instead of this dialog box.
003. 
004.************** Exception Text **************
005.System.NullReferenceException: Object reference not set to an instance of an object.
006.   at MediaFoundation.Misc.BitmapInfoHeader.CopyFrom(BitmapInfoHeader bmi)
007.   at MediaFoundation.Misc.BMMarshaler.MarshalNativeToManaged(IntPtr pNativeData)
008.   at System.StubHelpers.MngdRefCustomMarshaler.ConvertContentsToManaged(IntPtr pMarshalState, Object& pManagedHome, IntPtr pNativeHome)
009.   at MediaFoundation.EVR.IMFVideoDisplayControl.GetCurrentImage(BitmapInfoHeader pBih, IntPtr& pDib, Int32& pcbDib, Int64& pTimeStamp)
010.   at Telerik.Windows.MediaFoundation.WebCamPresenter.TakeSnapshot()
011.   at Telerik.WinControls.UI.RadWebCam.TakeSnapshot()
012.   at Telerik.WinControls.UI.RadWebCamElement.TakeSnapshot_Click(Object sender, EventArgs e)
013.   at Telerik.WinControls.RadElement.OnClick(EventArgs e)
014.   at Telerik.WinControls.UI.RadButtonItem.OnClick(EventArgs e)
015.   at Telerik.WinControls.UI.RadButtonElement.OnClick(EventArgs e)
016.   at Telerik.WinControls.RadElement.DoClick(EventArgs e)
017.   at Telerik.WinControls.RadElement.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)
018.   at Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)
019.   at Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)
020.   at Telerik.WinControls.RadElement.DoMouseUp(MouseEventArgs e)
021.   at Telerik.WinControls.ComponentInputBehavior.OnMouseUp(MouseEventArgs e)
022.   at Telerik.WinControls.RadControl.OnMouseUp(MouseEventArgs e)
023.   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
024.   at System.Windows.Forms.Control.WndProc(Message& m)
025.   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
026.   at Telerik.WinControls.RadControl.WndProc(Message& m)
027.   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
028.   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
029.   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
030. 
031. 
032.************** Loaded Assemblies **************
033.mscorlib
034.    Assembly Version: 4.0.0.0
035.    Win32 Version: 4.7.3468.0 built by: NET472REL1LAST_C
036.    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
037.----------------------------------------
038.TelerikExamples
039.    Assembly Version: 2019.3.917.40
040.    Win32 Version: 2019.3.917.40
041.    CodeBase: file:///C:/Program%20Files%20(x86)/Progress/Telerik%20UI%20for%20WinForms%20R3%202019/Examples/QuickStart/Bin/TelerikExamples.exe
042.----------------------------------------
043.System.Windows.Forms
044.    Assembly Version: 4.0.0.0
045.    Win32 Version: 4.7.3324.0 built by: NET472REL1LAST_C
046.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
047.----------------------------------------
048.System
049.    Assembly Version: 4.0.0.0
050.    Win32 Version: 4.7.3451.0 built by: NET472REL1LAST_C
051.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
052.----------------------------------------
053.System.Drawing
054.    Assembly Version: 4.0.0.0
055.    Win32 Version: 4.7.3190.0 built by: NET472REL1LAST_C
056.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
057.----------------------------------------
058.QuickStart
059.    Assembly Version: 2019.3.917.40
060.    Win32 Version: 2019.3.917.40
061.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/QuickStart/v4.0_2019.3.917.40__5bb2a467cbec794e/QuickStart.dll
062.----------------------------------------
063.Telerik.WinControls.UI
064.    Assembly Version: 2019.3.917.40
065.    Win32 Version: 2019.3.917.40
066.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.UI/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.UI.dll
067.----------------------------------------
068.System.Core
069.    Assembly Version: 4.0.0.0
070.    Win32 Version: 4.7.3468.0 built by: NET472REL1LAST_C
071.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
072.----------------------------------------
073.Telerik.WinControls
074.    Assembly Version: 2019.3.917.40
075.    Win32 Version: 2019.3.917.40
076.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.dll
077.----------------------------------------
078.TelerikCommon
079.    Assembly Version: 2019.3.917.40
080.    Win32 Version: 2019.3.917.40
081.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/TelerikCommon/v4.0_2019.3.917.40__5bb2a467cbec794e/TelerikCommon.dll
082.----------------------------------------
083.System.Xml
084.    Assembly Version: 4.0.0.0
085.    Win32 Version: 4.7.3190.0 built by: NET472REL1LAST_C
086.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
087.----------------------------------------
088.Telerik.WinControls.Themes.TelerikMetro
089.    Assembly Version: 2019.3.917.40
090.    Win32 Version: 2019.3.917.40
091.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.TelerikMetro/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.TelerikMetro.dll
092.----------------------------------------
093.System.Configuration
094.    Assembly Version: 4.0.0.0
095.    Win32 Version: 4.7.3324.0 built by: NET472REL1LAST_C
096.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
097.----------------------------------------
098.Microsoft.GeneratedCode
099.    Assembly Version: 1.0.0.0
100.    Win32 Version: 4.7.3190.0 built by: NET472REL1LAST_C
101.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
102.----------------------------------------
103.Telerik.WinControls.Themes.Fluent
104.    Assembly Version: 2019.3.917.40
105.    Win32 Version: 2019.3.917.40
106.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Fluent/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Fluent.dll
107.----------------------------------------
108.Telerik.WinControls.Themes.FluentDark
109.    Assembly Version: 2019.3.917.40
110.    Win32 Version: 2019.3.917.40
111.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.FluentDark/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.FluentDark.dll
112.----------------------------------------
113.RadControlSpy
114.    Assembly Version: 2019.3.917.40
115.    Win32 Version: 2019.3.917.40
116.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/RadControlSpy/v4.0_2019.3.917.40__5bb2a467cbec794e/RadControlSpy.dll
117.----------------------------------------
118.Telerik.WinControls.Themes.Aqua
119.    Assembly Version: 2019.3.917.40
120.    Win32 Version: 2019.3.917.40
121.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Aqua/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Aqua.dll
122.----------------------------------------
123.Telerik.WinControls.Themes.Breeze
124.    Assembly Version: 2019.3.917.40
125.    Win32 Version: 2019.3.917.40
126.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Breeze/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Breeze.dll
127.----------------------------------------
128.Telerik.WinControls.Themes.Desert
129.    Assembly Version: 2019.3.917.40
130.    Win32 Version: 2019.3.917.40
131.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Desert/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Desert.dll
132.----------------------------------------
133.Telerik.WinControls.Themes.HighContrastBlack
134.    Assembly Version: 2019.3.917.40
135.    Win32 Version: 2019.3.917.40
136.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.HighContrastBlack/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.HighContrastBlack.dll
137.----------------------------------------
138.Telerik.WinControls.Themes.Office2007Black
139.    Assembly Version: 2019.3.917.40
140.    Win32 Version: 2019.3.917.40
141.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Office2007Black/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Office2007Black.dll
142.----------------------------------------
143.Telerik.WinControls.Themes.Office2007Silver
144.    Assembly Version: 2019.3.917.40
145.    Win32 Version: 2019.3.917.40
146.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Office2007Silver/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Office2007Silver.dll
147.----------------------------------------
148.Telerik.WinControls.Themes.Office2010Black
149.    Assembly Version: 2019.3.917.40
150.    Win32 Version: 2019.3.917.40
151.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Office2010Black/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Office2010Black.dll
152.----------------------------------------
153.Telerik.WinControls.Themes.Office2010Silver
154.    Assembly Version: 2019.3.917.40
155.    Win32 Version: 2019.3.917.40
156.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Office2010Silver/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Office2010Silver.dll
157.----------------------------------------
158.Telerik.WinControls.Themes.Office2010Blue
159.    Assembly Version: 2019.3.917.40
160.    Win32 Version: 2019.3.917.40
161.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Office2010Blue/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Office2010Blue.dll
162.----------------------------------------
163.Telerik.WinControls.Themes.Office2013Dark
164.    Assembly Version: 2019.3.917.40
165.    Win32 Version: 2019.3.917.40
166.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Office2013Dark/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Office2013Dark.dll
167.----------------------------------------
168.Telerik.WinControls.Themes.Office2013Light
169.    Assembly Version: 2019.3.917.40
170.    Win32 Version: 2019.3.917.40
171.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Office2013Light/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Office2013Light.dll
172.----------------------------------------
173.Telerik.WinControls.Themes.TelerikMetroBlue
174.    Assembly Version: 2019.3.917.40
175.    Win32 Version: 2019.3.917.40
176.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.TelerikMetroBlue/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.TelerikMetroBlue.dll
177.----------------------------------------
178.Telerik.WinControls.Themes.TelerikMetroTouch
179.    Assembly Version: 2019.3.917.40
180.    Win32 Version: 2019.3.917.40
181.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.TelerikMetroTouch/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.TelerikMetroTouch.dll
182.----------------------------------------
183.Telerik.WinControls.Themes.VisualStudio2012Dark
184.    Assembly Version: 2019.3.917.40
185.    Win32 Version: 2019.3.917.40
186.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.VisualStudio2012Dark/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.VisualStudio2012Dark.dll
187.----------------------------------------
188.Telerik.WinControls.Themes.VisualStudio2012Light
189.    Assembly Version: 2019.3.917.40
190.    Win32 Version: 2019.3.917.40
191.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.VisualStudio2012Light/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.VisualStudio2012Light.dll
192.----------------------------------------
193.Telerik.WinControls.Themes.Windows7
194.    Assembly Version: 2019.3.917.40
195.    Win32 Version: 2019.3.917.40
196.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Windows7/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Windows7.dll
197.----------------------------------------
198.Telerik.WinControls.Themes.Windows8
199.    Assembly Version: 2019.3.917.40
200.    Win32 Version: 2019.3.917.40
201.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Windows8/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Windows8.dll
202.----------------------------------------
203.Telerik.WinControls.Themes.Material
204.    Assembly Version: 2019.3.917.40
205.    Win32 Version: 2019.3.917.40
206.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Material/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Material.dll
207.----------------------------------------
208.Telerik.WinControls.Themes.MaterialPink
209.    Assembly Version: 2019.3.917.40
210.    Win32 Version: 2019.3.917.40
211.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.MaterialPink/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.MaterialPink.dll
212.----------------------------------------
213.Telerik.WinControls.Themes.MaterialTeal
214.    Assembly Version: 2019.3.917.40
215.    Win32 Version: 2019.3.917.40
216.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.MaterialTeal/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.MaterialTeal.dll
217.----------------------------------------
218.Telerik.WinControls.Themes.MaterialBlueGrey
219.    Assembly Version: 2019.3.917.40
220.    Win32 Version: 2019.3.917.40
221.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.MaterialBlueGrey/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.MaterialBlueGrey.dll
222.----------------------------------------
223.Telerik.WinControls.Themes.Crystal
224.    Assembly Version: 2019.3.917.40
225.    Win32 Version: 2019.3.917.40
226.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.Crystal/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.Crystal.dll
227.----------------------------------------
228.Telerik.WinControls.Themes.CrystalDark
229.    Assembly Version: 2019.3.917.40
230.    Win32 Version: 2019.3.917.40
231.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.Themes.CrystalDark/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.Themes.CrystalDark.dll
232.----------------------------------------
233.System.Data
234.    Assembly Version: 4.0.0.0
235.    Win32 Version: 4.7.3260.0 built by: NET472REL1LAST_C
236.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
237.----------------------------------------
238.Telerik.WinControls.RadWebCam
239.    Assembly Version: 2019.3.917.40
240.    Win32 Version: 2019.3.917.40
241.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.RadWebCam/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.RadWebCam.dll
242.----------------------------------------
243.Telerik.Windows.MediaFoundation
244.    Assembly Version: 2019.3.910.40
245.    Win32 Version: 2019.3.910.40
246.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.Windows.MediaFoundation/v4.0_2019.3.910.40__5803cfa389c90ce7/Telerik.Windows.MediaFoundation.dll
247.----------------------------------------
248.Telerik.WinControls.ChartView
249.    Assembly Version: 2019.3.917.40
250.    Win32 Version: 2019.3.917.40
251.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Telerik.WinControls.ChartView/v4.0_2019.3.917.40__5bb2a467cbec794e/Telerik.WinControls.ChartView.dll
252.----------------------------------------
253.MediaFoundation
254.    Assembly Version: 3.1.0.32450
255.    Win32 Version: 3.1.0.0
256.    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/MediaFoundation/v4.0_3.1.0.32450__36fa660e1d6ebf8d/MediaFoundation.dll
257.----------------------------------------
258. 
259.************** JIT Debugging **************
260.To enable just-in-time (JIT) debugging, the .config file for this
261.application or computer (machine.config) must have the
262.jitDebugging value set in the system.windows.forms section.
263.The application must also be compiled with debugging
264.enabled.
265. 
266.For example:
267. 
268.<configuration>
269.    <system.windows.forms jitDebugging="true" />
270.</configuration>
271. 
272.When JIT debugging is enabled, any unhandled exception
273.will be sent to the JIT debugger registered on the computer
274.rather than be handled by this dialog box.

Approved
Last Updated: 15 Oct 2019 10:32 by ADMIN
Created by: Czeshirecat
Comments: 1
Category: WebCam
Type: Bug Report
0

Using FirstLook (also in my application) run the WebCam sample.

Press the takePhotoButton while running youtube video on 2nd monitor (also with netflix, so I assume it's general)

Sound on video pauses and returns when webcam control closed down.

Might be bug, or driver (Im using usb headphones) or needs me to set some property?