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Clipboard access repeatedly denied, failure to paste


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When I paste images from the clipboard to paint.net, I usually get up to 3 pastes before it starts giving me an access denied error. I haven't been installing anything lately so I'm not sure it's an environment issue, but I wouldn't be surprised if nobody else repros this. The images I'm pasting are about monitor size 1920x1080 or so, nothing small or huge. Here's the exception:

 

Quote

Exception:

System.UnauthorizedAccessException: OpenClipboard() returned FALSE (5, ERROR_ACCESS_DENIED)
   at PaintDotNet.SystemLayer.WindowsUtil.ThrowWin32Error(String message, Int32 lastWin32Error) in D:\src\pdn\src_4_3_x\SystemLayer\WindowsUtil.cs:line 25
   at PaintDotNet.SystemLayer.Clipboard.ClipboardTransaction.Create(IClipboard clipboard, HWND hwnd) in D:\src\pdn\src_4_3_x\SystemLayer\Clipboard\ClipboardTransaction.cs:line 60
   at PaintDotNet.Clipboard.PdnClipboard.Open(IntPtr window) in D:\src\pdn\src_4_3_x\Core\Clipboard\PdnClipboard.cs:line 24
   at PaintDotNet.Clipboard.ClipboardExtensions.Open(IClipboard clipboard, IWin32Window window) in D:\src\pdn\src_4_3_x\Core\Clipboard\ClipboardExtensions.cs:line 33
   at PaintDotNet.Actions.PasteInToNewImageAction.<>c__DisplayClass1_0.<OnPerformAction>b__0() in D:\src\pdn\src_4_3_x\PaintDotNet\Actions\PasteInToNewImageAction.cs:line 38
   at PaintDotNet.Runtime.RetryManager.RunMemorySensitiveOperation(Int32 maxAttempts, Action action) in D:\src\pdn\src_4_3_x\Base\Runtime\RetryManager.cs:line 190
   at PaintDotNet.Actions.PasteInToNewImageAction.OnPerformAction(AppWorkspace appWorkspace) in D:\src\pdn\src_4_3_x\PaintDotNet\Actions\PasteInToNewImageAction.cs:line 34

Diagnostics:

Application                                                  paint.net 4.3.7 (Stable 4.307.8039.30451)
Build Date                                                   Tuesday, January 4, 2022
Install type                                                 Classic

Hardware accelerated rendering (GPU)                         True
Animations                                                   False
DPI                                                          96 (1.00x scale)
Language                                                     en-US

OS                                                           Windows 10 Home x64 (10.0.19042.0)
Runtime                                                      .NET 6.0.1 x64
Physical Memory                                              7,934 MB

CPU                                                          Intel(R) Core(TM) i5-1035G1 CPU @ 1.00GHz
    Speed                                                    ~1190 MHz
    Cores / Threads                                          4 / 8
    Features                                                 SSE, SSE2, SSE3, SSSE3, SSE4_1, SSE4_2, AVX, AVX2

Pointer                                                      Virtual Multitouch Device
    Type                                                     ExternalPen
    Contacts                                                 1

Pointer                                                      Huion Tablet
    Type                                                     IntegratedPen
    Contacts                                                 1

Video Card                                                   Intel(R) UHD Graphics
    Dedicated Video RAM                                      128 MB
    Dedicated System RAM                                     0 MB
    Shared System RAM                                        3,967 MB
    Vendor ID                                                0x8086
    Device ID                                                0x8A56
    Subsystem ID                                             0x3FB517AA
    Revision                                                 7
    LUID                                                     0x00012F24
    Flags                                                    AcgCompatible, SupportMonitoredFences, KeyedMutexConformance
    Graphics Preemption                                      TriangleBoundary
    Compute Preemption                                       ThreadBoundary
    Outputs                                                  1
    Feature Level                                            Direct3D_12_1
    DXGI Formats                                             A8_UNorm, B8G8R8A8_UNorm, R16G16B16A16_UNorm, R16G16B16A16_Float, R32G32B32A32_Float
    Buffer Precision                                         UNorm8bpc, UNorm8bpcSrgb, UNorm16bpc, Float16bpc, Float32bpc

Video Card                                                   Microsoft Basic Render Driver
    Dedicated Video RAM                                      0 MB
    Dedicated System RAM                                     0 MB
    Shared System RAM                                        3,967 MB
    Vendor ID                                                0x1414
    Device ID                                                0x008C
    Subsystem ID                                             0x00000000
    Revision                                                 0
    LUID                                                     0x00013173
    Flags                                                    Software, AcgCompatible, SupportMonitoredFences, KeyedMutexConformance
    Graphics Preemption                                      InstructionBoundary
    Compute Preemption                                       InstructionBoundary
    Outputs                                                  0
    Feature Level                                            Direct3D_12_1
    DXGI Formats                                             A8_UNorm, B8G8R8A8_UNorm, R16G16B16A16_UNorm, R16G16B16A16_Float, R32G32B32A32_Float
    Buffer Precision                                         UNorm8bpc, UNorm8bpcSrgb, UNorm16bpc, Float16bpc, Float32bpc

 

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PDN is just reporting to you what's happening when it tries to access the clipboard. You may still have something else that's affecting the clipboard; maybe even Win10's newest WinKey+V stuff.

The Paint.NET Blog: https://blog.getpaint.net/

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