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[GH-ISSUE #150] Crash when opening webcam viewier #131

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opened 2026-02-26 08:45:27 +03:00 by kerem · 9 comments
kerem commented 2026-02-26 08:45:27 +03:00
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Originally created by @justinian on GitHub (Jun 1, 2017).
Original GitHub issue: https://github.com/NickeManarin/ScreenToGif/issues/150

Originally assigned to: @NickeManarin on GitHub.

I get a crash when going to the webcam view from the start window:

System.AccessViolationException occurred
  HResult=0x80004003
  Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
  Source=<Cannot evaluate the exception source>
  StackTrace:
   at ScreenToGif.Webcam.DirectShow.ExtendStreaming.ICaptureGraphBuilder2.RenderStream(Guid& pCategory, Guid& pType, Object pSource, IBaseFilter pfCompressor, IBaseFilter pfRenderer)
   at ScreenToGif.Webcam.DirectX.CaptureWebcam.RenderGraph()
   at ScreenToGif.Webcam.DirectX.CaptureWebcam.StartPreview()
   at ScreenToGif.Controls.WebcamControl.Refresh()
   at ScreenToGif.Windows.Webcam.VideoDevicesComboBox_SelectionChanged(Object sender, SelectionChangedEventArgs e)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.Controls.ComboBox.OnSelectionChanged(SelectionChangedEventArgs e)
   at System.Windows.Controls.Primitives.Selector.SelectionChanger.End()
   at System.Windows.Controls.Primitives.Selector.SelectionChanger.SelectJustThisItem(ItemInfo info, Boolean assumeInItemsCollection)
   at System.Windows.Controls.Primitives.Selector.OnSelectedIndexChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at ScreenToGif.Windows.Webcam.<>c__DisplayClass20_0.<LoadCallBack>b__1()
   at System.Windows.Threading.DispatcherOperation.InvokeDelegateCore()
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Window.ShowHelper(Object booleanBox)
   at System.Windows.Window.ShowDialog()
   at ScreenToGif.Windows.Other.Startup.WebcamRecorder_Executed(Object sender, ExecutedRoutedEventArgs e)
   at System.Windows.Input.CommandBinding.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
   at System.Windows.Input.CommandManager.ExecuteCommandBinding(Object sender, ExecutedRoutedEventArgs e, CommandBinding commandBinding)
   at System.Windows.Input.CommandManager.FindCommandBinding(CommandBindingCollection commandBindings, Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
   at System.Windows.Input.CommandManager.FindCommandBinding(Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
   at System.Windows.Input.CommandManager.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.Input.RoutedCommand.ExecuteImpl(Object parameter, IInputElement target, Boolean userInitiated)
   at MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
   at System.Windows.Controls.Primitives.ButtonBase.OnClick()
   at System.Windows.Controls.Button.OnClick()
   at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Window.ShowHelper(Object booleanBox)
   at System.Windows.Window.ShowDialog()
   at ScreenToGif.App.Application_Startup(Object sender, StartupEventArgs e)
   at System.Windows.Application.OnStartup(StartupEventArgs e)
   at System.Windows.Application.<.ctor>b__1_0(Object unused)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at ScreenToGif.App.Main()
Originally created by @justinian on GitHub (Jun 1, 2017). Original GitHub issue: https://github.com/NickeManarin/ScreenToGif/issues/150 Originally assigned to: @NickeManarin on GitHub. I get a crash when going to the webcam view from the start window: ``` System.AccessViolationException occurred HResult=0x80004003 Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt. Source=<Cannot evaluate the exception source> StackTrace: at ScreenToGif.Webcam.DirectShow.ExtendStreaming.ICaptureGraphBuilder2.RenderStream(Guid& pCategory, Guid& pType, Object pSource, IBaseFilter pfCompressor, IBaseFilter pfRenderer) at ScreenToGif.Webcam.DirectX.CaptureWebcam.RenderGraph() at ScreenToGif.Webcam.DirectX.CaptureWebcam.StartPreview() at ScreenToGif.Controls.WebcamControl.Refresh() at ScreenToGif.Windows.Webcam.VideoDevicesComboBox_SelectionChanged(Object sender, SelectionChangedEventArgs e) at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args) at System.Windows.Controls.ComboBox.OnSelectionChanged(SelectionChangedEventArgs e) at System.Windows.Controls.Primitives.Selector.SelectionChanger.End() at System.Windows.Controls.Primitives.Selector.SelectionChanger.SelectJustThisItem(ItemInfo info, Boolean assumeInItemsCollection) at System.Windows.Controls.Primitives.Selector.OnSelectedIndexChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e) at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e) at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args) at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType) at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal) at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value) at ScreenToGif.Windows.Webcam.<>c__DisplayClass20_0.<LoadCallBack>b__1() at System.Windows.Threading.DispatcherOperation.InvokeDelegateCore() at System.Windows.Threading.DispatcherOperation.InvokeImpl() at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state) at System.Windows.Threading.DispatcherOperation.Invoke() at System.Windows.Threading.Dispatcher.ProcessQueue() at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs) at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam) at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg) at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame) at System.Windows.Window.ShowHelper(Object booleanBox) at System.Windows.Window.ShowDialog() at ScreenToGif.Windows.Other.Startup.WebcamRecorder_Executed(Object sender, ExecutedRoutedEventArgs e) at System.Windows.Input.CommandBinding.OnExecuted(Object sender, ExecutedRoutedEventArgs e) at System.Windows.Input.CommandManager.ExecuteCommandBinding(Object sender, ExecutedRoutedEventArgs e, CommandBinding commandBinding) at System.Windows.Input.CommandManager.FindCommandBinding(CommandBindingCollection commandBindings, Object sender, RoutedEventArgs e, ICommand command, Boolean execute) at System.Windows.Input.CommandManager.FindCommandBinding(Object sender, RoutedEventArgs e, ICommand command, Boolean execute) at System.Windows.Input.CommandManager.OnExecuted(Object sender, ExecutedRoutedEventArgs e) at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args) at System.Windows.Input.RoutedCommand.ExecuteImpl(Object parameter, IInputElement target, Boolean userInitiated) at MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated) at System.Windows.Controls.Primitives.ButtonBase.OnClick() at System.Windows.Controls.Button.OnClick() at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e) at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent) at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e) at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args) at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args) at System.Windows.Input.InputManager.ProcessStagingArea() at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input) at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport) at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel) at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs) at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam) at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg) at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame) at System.Windows.Window.ShowHelper(Object booleanBox) at System.Windows.Window.ShowDialog() at ScreenToGif.App.Application_Startup(Object sender, StartupEventArgs e) at System.Windows.Application.OnStartup(StartupEventArgs e) at System.Windows.Application.<.ctor>b__1_0(Object unused) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) at System.Windows.Threading.DispatcherOperation.InvokeImpl() at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state) at System.Windows.Threading.DispatcherOperation.Invoke() at System.Windows.Threading.Dispatcher.ProcessQueue() at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs) at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam) at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg) at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame) at System.Windows.Application.RunDispatcher(Object ignore) at System.Windows.Application.RunInternal(Window window) at ScreenToGif.App.Main() ```
kerem commented 2026-02-26 08:45:27 +03:00
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@NickeManarin commented on GitHub (Jun 2, 2017):

What kind of webcam do you have? Model/Name

<!-- gh-comment-id:305655176 --> @NickeManarin commented on GitHub (Jun 2, 2017): What kind of webcam do you have? Model/Name
kerem commented 2026-02-26 08:45:27 +03:00
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@justinian commented on GitHub (Jun 2, 2017):

It's a Logitech HD Webcam C310. I've caught the crash in visual studio, though it's happening somewhere down in lvcod64.dll which I believe is Logitech's.

<!-- gh-comment-id:305669934 --> @justinian commented on GitHub (Jun 2, 2017): It's a *Logitech HD Webcam C310*. I've caught the crash in visual studio, though it's happening somewhere down in `lvcod64.dll` which I believe is Logitech's.
kerem commented 2026-02-26 08:45:27 +03:00
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@NickeManarin commented on GitHub (Dec 3, 2017):

I've got some feedback about this crash from other users. But I'm not sure what's happening inside lvcod64.dll, if I can do something about it or wait for a driver update.

Btw, Do you know if the driver is up to date?

<!-- gh-comment-id:348796830 --> @NickeManarin commented on GitHub (Dec 3, 2017): I've got some feedback about this crash from other users. But I'm not sure what's happening inside `lvcod64.dll`, if I can do something about it or wait for a driver update. Btw, Do you know if the driver is up to date?
kerem commented 2026-02-26 08:45:27 +03:00
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@lukedubber commented on GitHub (Dec 4, 2017):

I have a Logitech HD Pro Webcam C920 and all I get is a black screen, not sure what is wrong. Did updated drivers did MSI install rebooted etc. Nothing worked.

Not sure if this is helpful, if this needs to be in a new thread let me know.

<!-- gh-comment-id:349139668 --> @lukedubber commented on GitHub (Dec 4, 2017): I have a Logitech HD Pro Webcam C920 and all I get is a black screen, not sure what is wrong. Did updated drivers did MSI install rebooted etc. Nothing worked. Not sure if this is helpful, if this needs to be in a new thread let me know.
kerem commented 2026-02-26 08:45:27 +03:00
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@NickeManarin commented on GitHub (Dec 4, 2017):

@lukedubber Yes, it is a helpful information. :)

I believe there's something wrong inside the Webcam recorder, I need to develop it from scratch.

<!-- gh-comment-id:349145694 --> @NickeManarin commented on GitHub (Dec 4, 2017): @lukedubber Yes, it is a helpful information. :) I believe there's something wrong inside the Webcam recorder, I need to develop it from scratch.
kerem commented 2026-02-26 08:45:27 +03:00
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@NickeManarin commented on GitHub (Jan 13, 2018):

@justinian Did you try to delete or rename that dll? Maybe the webcam still works with the default drivers.

<!-- gh-comment-id:357455418 --> @NickeManarin commented on GitHub (Jan 13, 2018): @justinian Did you try to delete or rename that dll? Maybe the webcam still works with the default drivers.
kerem commented 2026-02-26 08:45:28 +03:00
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@justinian commented on GitHub (Jan 14, 2018):

Looks like if that DLL is moved out of the way, the webcam does work for simple video still, and it avoids the ScreenToGif crash.

(I actually don't really use the webcam feature in S2G, so I'll probably just leave the DLL in place, but I'm happy to help test/debug if needed.)

<!-- gh-comment-id:357498190 --> @justinian commented on GitHub (Jan 14, 2018): Looks like if that DLL is moved out of the way, the webcam does work for simple video still, and it avoids the ScreenToGif crash. (I actually don't really use the webcam feature in S2G, so I'll probably just leave the DLL in place, but I'm happy to help test/debug if needed.)
kerem commented 2026-02-26 08:45:28 +03:00
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@NickeManarin commented on GitHub (Jan 16, 2018):

Oh, thank you for that experiment. :)

I was trying to understand what's the purpouse of lvcod64.dll, apparently it's a video codec, so it makes sense that the webcam still works even without that code library.

<!-- gh-comment-id:358108616 --> @NickeManarin commented on GitHub (Jan 16, 2018): Oh, thank you for that experiment. :) I was trying to understand what's the purpouse of `lvcod64.dll`, apparently it's a video codec, so it makes sense that the webcam still works even without that code library.
kerem commented 2026-02-26 08:45:28 +03:00
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@atomal2 commented on GitHub (Apr 4, 2018):

In different versions of Windows10, observed incorrect operation of proprietary Logitech apps/drivers; in the second half of 2017, belike upgrade to 1709-fall-creators-update, the problem is solved. Program freezes due to an error caused by a dependency on the presence/absence( in the OS itself ) of a particular Systems codec/component.
http://support.logitech.com/en_us/downloads - + Logitech Webcam Software (v.2.80.853.0 CDfirmware utilities 2012), additionally - +Diagnostic Tool, +Camera Settings.
In the case of "...I get is a black screen"(if there is no "live image" in the application window ) you should try to use the universal driver; Device Manager>Imaging devices>Properties>Driver> Information is defined as C:\Windows\System32\drivers\usbvideo.sys + ksthunk.sys. A generic/universal video device driver is downloaded from Microsoft sites( Update-Automatically search or when you first connect to System_case/chassis) before the original "box"drivers installing.

  • use the original Logitech drivers in Win10, until now, excludes the possibility of capture video from web-camera in the application ScreenToGif.
<!-- gh-comment-id:378499203 --> @atomal2 commented on GitHub (Apr 4, 2018): In different versions of Windows10, observed incorrect operation of proprietary Logitech apps/drivers; in the second half of 2017, belike upgrade to 1709-fall-creators-update, the problem is solved. Program freezes due to an error caused by a dependency on the presence/absence( in the OS itself ) of a particular Systems codec/component. http://support.logitech.com/en_us/downloads - + Logitech Webcam Software (v.2.80.853.0 CDfirmware utilities 2012), additionally - +Diagnostic Tool, +Camera Settings. In the case of "...I get is a black screen"(if there is no "live image" in the application window ) you should try to use the universal driver; Device Manager>Imaging devices>Properties>Driver> Information is defined as C:\Windows\System32\drivers\usbvideo.sys + ksthunk.sys. A generic/universal video device driver is downloaded from Microsoft sites( Update-Automatically search or when you first connect to System_case/chassis) before the original "box"drivers installing. - use the original Logitech drivers in Win10, until now, excludes the possibility of capture video from web-camera in the application ScreenToGif.
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2.29
2.28.2
2.28.1
2.28
2.27.3
2.27.2
2.27.1
2.27
2.26.1
2.26
2.25
2.24.2
2.24.1
2.24
2.23.2
2.23.1
2.23
2.22.1
2.22
2.21.2
2.21.1
2.21
2.20.4
2.20.3
2.20.2
2.20.1
2.20
2.19.3
2.19.2
2.19.1
2.19
2.18
2.17.1
2.17
2.16
2.15.2
2.15.1
2.15
2.14.1
2.14
2.13.3
2.13.2
2.13.1
2.13
2.12.1
2.12
2.11
2.10
2.9
2.8.1
2.8
2.7.3
2.7.2
2.7.1
2.7
2.6
2.5
2.4
2.3.2
2.3.1
2.3
2.2
2.1
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copy cats

   
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starred/ScreenToGif#131
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