[PR #1004] [MERGED] Analysis of issue #864: Clipboard clearing is an environment issue, not a code issue #935

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opened 2026-02-26 12:00:32 +03:00 by kerem · 0 comments

kerem commented

2026-02-26 12:00:32 +03:00

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📋 Pull Request Information

Original PR: https://github.com/1Remote/1Remote/pull/1004
Author: @Copilot
Created: 10/18/2025
Status: ✅ Merged
Merged: 10/19/2025
Merged by: @VShawn

Base: main ← Head: copilot/analyze-user-feedback-issue-864

📝 Commits (1)

f99d384 Initial plan

📄 Description

Issue Analysis

This PR provides a comprehensive analysis of issue #864, where users reported that the clipboard is cleared after approximately 1 second when copying content in Excel while connected to a Windows RDP desktop through 1Remote with clipboard sharing enabled.

Investigation Results

After thorough code review and analysis of the issue discussion, I have determined that this is an environment/system issue, NOT a code issue in 1Remote.

Evidence

No clipboard manipulation code exists: The codebase was searched exhaustively for clipboard operations. The only clipboard-related code found:
- Enables RDP clipboard redirection via _rdpClient.AdvancedSettings9.RedirectClipboard = _rdpSettings.EnableClipboard == true (AxMsRdpClient09Host.xaml.cs:352)
- Reads clipboard for file upload operations (VmFileTransmitHost.cs)
- Sets clipboard when copying text (error messages, credentials)
- NO code that monitors, clears, or empties the clipboard
Developer confirmation: The maintainer stated: "我十分确定代码内没有写过RDP剪贴板的操作" (I'm certain there's no RDP clipboard operation code written)
Intermittent behavior: Multiple users reported the issue is difficult to reproduce consistently, suggesting environmental factors rather than deterministic code behavior
Effective workaround exists: Disabling clipboard sharing in connection settings resolves the issue, confirming the problem lies in the RDP clipboard redirection mechanism itself

Root Cause Analysis

The issue is likely caused by one or more of the following environmental factors:

Windows RDP clipboard synchronization: The native Windows RDP protocol's clipboard sync mechanism may have timing issues or race conditions when synchronizing clipboard content between local and remote sessions
Third-party software interference: Applications that monitor clipboard (e.g., WeChat Input Method, as mentioned by users) may interfere with the RDP clipboard redirection
Excel-specific clipboard behavior: Excel uses complex clipboard formats and may trigger edge cases in the RDP clipboard synchronization
Windows clipboard manager conflicts: Multiple applications accessing the clipboard simultaneously through the RDP channel

Conclusion

No code changes are required or recommended because:

1Remote uses the standard Windows RDP ActiveX control and simply enables the built-in clipboard redirection feature
The application does not implement custom clipboard management
The issue originates from the Windows RDP protocol level, which is outside the application's control
Making workarounds in the code could potentially break normal clipboard functionality for other users

User Recommendation

Users experiencing this issue should:

Temporarily disable clipboard sharing in the RDP connection settings if the issue occurs
Check for interfering software (clipboard managers, input methods)
Report the issue to Microsoft for RDP protocol improvements

This analysis documents the investigation for future reference and helps users understand the root cause of the issue.

Original prompt

阅读issue #864，根据其中的讨论，分析用户反馈的问题是代码导致的还是环境导致的，如果是代码导致的就进行代码修正。

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/1Remote/1Remote/pull/1004 **Author:** [@Copilot](https://github.com/apps/copilot-swe-agent) **Created:** 10/18/2025 **Status:** ✅ Merged **Merged:** 10/19/2025 **Merged by:** [@VShawn](https://github.com/VShawn) **Base:** `main` ← **Head:** `copilot/analyze-user-feedback-issue-864` --- ### 📝 Commits (1) - [`f99d384`](https://github.com/1Remote/1Remote/commit/f99d3841a5881649427fdb10bbd3d47dc99bbe02) Initial plan ### 📄 Description ## Issue Analysis This PR provides a comprehensive analysis of issue #864, where users reported that the clipboard is cleared after approximately 1 second when copying content in Excel while connected to a Windows RDP desktop through 1Remote with clipboard sharing enabled. ## Investigation Results After thorough code review and analysis of the issue discussion, I have determined that **this is an environment/system issue, NOT a code issue in 1Remote**. ### Evidence 1. **No clipboard manipulation code exists**: The codebase was searched exhaustively for clipboard operations. The only clipboard-related code found: - Enables RDP clipboard redirection via `_rdpClient.AdvancedSettings9.RedirectClipboard = _rdpSettings.EnableClipboard == true` (AxMsRdpClient09Host.xaml.cs:352) - Reads clipboard for file upload operations (VmFileTransmitHost.cs) - Sets clipboard when copying text (error messages, credentials) - **NO code that monitors, clears, or empties the clipboard** 2. **Developer confirmation**: The maintainer stated: "我十分确定代码内没有写过RDP剪贴板的操作" (I'm certain there's no RDP clipboard operation code written) 3. **Intermittent behavior**: Multiple users reported the issue is difficult to reproduce consistently, suggesting environmental factors rather than deterministic code behavior 4. **Effective workaround exists**: Disabling clipboard sharing in connection settings resolves the issue, confirming the problem lies in the RDP clipboard redirection mechanism itself ### Root Cause Analysis The issue is likely caused by one or more of the following environmental factors: - **Windows RDP clipboard synchronization**: The native Windows RDP protocol's clipboard sync mechanism may have timing issues or race conditions when synchronizing clipboard content between local and remote sessions - **Third-party software interference**: Applications that monitor clipboard (e.g., WeChat Input Method, as mentioned by users) may interfere with the RDP clipboard redirection - **Excel-specific clipboard behavior**: Excel uses complex clipboard formats and may trigger edge cases in the RDP clipboard synchronization - **Windows clipboard manager conflicts**: Multiple applications accessing the clipboard simultaneously through the RDP channel ### Conclusion **No code changes are required or recommended** because: 1. 1Remote uses the standard Windows RDP ActiveX control and simply enables the built-in clipboard redirection feature 2. The application does not implement custom clipboard management 3. The issue originates from the Windows RDP protocol level, which is outside the application's control 4. Making workarounds in the code could potentially break normal clipboard functionality for other users ### User Recommendation Users experiencing this issue should: - Temporarily disable clipboard sharing in the RDP connection settings if the issue occurs - Check for interfering software (clipboard managers, input methods) - Report the issue to Microsoft for RDP protocol improvements This analysis documents the investigation for future reference and helps users understand the root cause of the issue.  <details> <summary>Original prompt</summary> > 阅读issue #864，根据其中的讨论，分析用户反馈的问题是代码导致的还是环境导致的，如果是代码导致的就进行代码修正。 </details>  --- 💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more [Copilot coding agent tips](https://gh.io/copilot-coding-agent-tips) in the docs. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>