BUG: COMException 0x800401D0 when using clipboard in v1.20.1 (CLIPBRD_E_CANT_OPEN)

[BlagoYar]

Checks

• I have checked that this issue has not already been reported.

• I am using the latest version of Flow Launcher.

• I am using the prerelease version of Flow Launcher.

Problem Description

Flow Launcher version

1.20.1

OS version

Windows 10 22H2 (Build 19045.5965)

Architecture

• IntPtr Length: 8
• x64: ✅

Paths

• Python Path:
  D:\TotalCMD\Launching\Soft\Utilities\FlowLauncher\app-1.20.1\UserData\Environments\Python\PythonEmbeddable-v3.11.4\pythonw.exe

• NodeJS Path:
  E:\Site-Building\Useful Programs\NodeJS\node.exe

Date and Time

06/22/2025 23:21:28

Exception Details

System.Runtime.InteropServices.COMException (0x800401D0): Ошибка при вызове OpenClipboard (0x800401D0 (CLIPBRD_E_CANT_OPEN))
at System.Runtime.InteropServices.Marshal.ThrowExceptionForHR(Int32 errorCode, IntPtr errorInfo)
at System.Windows.Clipboard.Flush()
at Flow.Launcher.Plugin.StringUtils.QueryHandler.<>c__DisplayClass1_0.b__0(ActionContext )
at Flow.Launcher.Plugin.Result.ExecuteAsync(ActionContext context) in //Flow.Launcher.Plugin/Result.cs:line 267
at Flow.Launcher.ViewModel.MainViewModel.OpenResultAsync(String index) in C:\projects\flow-launcher\Flow.Launcher\ViewModel\MainViewModel.cs:line 459
at CommunityToolkit.Mvvm.Input.AsyncRelayCommand.AwaitAndThrowIfFailed(Task executionTask)
at System.Threading.Tasks.Task.<>c.b__128_0(Object state)
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)

Additional Info

• It seems this error happens when the clipboard is being accessed (likely copy to clipboard).
• This can happen if another application locks the clipboard (e.g., remote desktop sessions, clipboard managers).
• Would be helpful to handle this exception gracefully or retry with delay.

Log file

Attached:

2025-06-22.txt

To Reproduce

1. Install StringUtils
2. Generate 'str uuid'
3. Copy any to clipboard

Screenshots

No response

Flow Launcher Version

1.20.1

Windows Build Number

Win10 22H2 1904.5965

Error Log

Replace this line with the important log contents.

[Jack251970]

Could you please open an issue in this repository? This issue is related to that external plugin rather than Flow Launcher.

https://github.com/t-tan/Flow.Launcher.Plugin.StringUtils