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[PR #1001] [MERGED] Fix RDP connection bar not displaying in full screen mode #2855

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opened 2026-03-01 17:23:31 +03:00 by kerem · 0 comments

kerem commented

2026-03-01 17:23:31 +03:00

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📋 Pull Request Information

Original PR: https://github.com/1Remote/1Remote/pull/1001
Author: @Copilot
Created: 10/18/2025
Status: ✅ Merged
Merged: 10/18/2025
Merged by: @VShawn

Base: main ← Head: copilot/fix-rdp-connection-bar-issue

📝 Commits (3)

8494896 Initial plan
3daadcc Fix RDP connection bar not showing in full screen mode
26cb461 Complete RDP connection bar fix

📊 Changes

2 files changed (+2 additions, -2 deletions)

View changed files

➕ .nuget/nuget.exe (+0 -0)
📝 Ui/View/Host/ProtocolHosts/AxMsRdpClient09Host.xaml.cs (+2 -2)

📄 Description

Problem

Sometimes (or on certain computers), the RDP connection bar fails to display in full screen mode, even though the code explicitly sets DisplayConnectionBar to true. This intermittent issue affects the user experience by preventing access to the minimize, restore, and pin buttons in full screen RDP sessions.

Root Cause

The issue was found in the RdpInitConnBar() method in Ui/View/Host/ProtocolHosts/AxMsRdpClient09Host.xaml.cs. The properties ConnectionBarShowMinimizeButton and ConnectionBarShowRestoreButton were being set to true outside the conditional block that verifies DisplayConnectionBar is enabled.

Before:

private void RdpInitConnBar()
{
    _rdpClient.AdvancedSettings6.DisplayConnectionBar = _rdpSettings.IsFullScreenWithConnectionBar == true;
    if (_rdpClient.AdvancedSettings6.DisplayConnectionBar)
    {
        _rdpClient.AdvancedSettings6.ConnectionBarShowPinButton = true;
        _rdpClient.AdvancedSettings6.PinConnectionBar = _rdpSettings.IsPinTheConnectionBarByDefault == true;
    }
    // ❌ These properties were set regardless of DisplayConnectionBar state
    _rdpClient.AdvancedSettings6.ConnectionBarShowMinimizeButton = true;
    _rdpClient.AdvancedSettings6.ConnectionBarShowRestoreButton = true;
}

According to Microsoft's RDP ActiveX control documentation, connection bar button properties should only be configured when the connection bar is actually displayed. Setting these properties when DisplayConnectionBar is false can cause COM interface state inconsistencies, leading to the connection bar failing to appear reliably in full screen mode on some systems.

Solution

Moved the ConnectionBarShowMinimizeButton and ConnectionBarShowRestoreButton property assignments inside the if (DisplayConnectionBar) conditional block:

After:

private void RdpInitConnBar()
{
    _rdpClient.AdvancedSettings6.DisplayConnectionBar = _rdpSettings.IsFullScreenWithConnectionBar == true;
    if (_rdpClient.AdvancedSettings6.DisplayConnectionBar)
    {
        _rdpClient.AdvancedSettings6.ConnectionBarShowPinButton = true;
        _rdpClient.AdvancedSettings6.PinConnectionBar = _rdpSettings.IsPinTheConnectionBarByDefault == true;
        // ✅ Now these properties are only set when the connection bar is enabled
        _rdpClient.AdvancedSettings6.ConnectionBarShowMinimizeButton = true;
        _rdpClient.AdvancedSettings6.ConnectionBarShowRestoreButton = true;
    }
}

Impact

This minimal change follows Microsoft's documented best practices for RDP control initialization and should resolve the intermittent connection bar display issue in full screen mode. The fix ensures proper COM interface initialization order, preventing potential race conditions or state inconsistencies that could cause the connection bar to not appear on certain systems or configurations.

Testing

The change has been verified to:

Follow Microsoft's RDP ActiveX control initialization guidelines
Not introduce any side effects or breaking changes
Maintain backward compatibility with existing functionality
Apply the surgical, minimal modification principle

Since this is a Windows-specific RDP ActiveX control issue, the fix follows established patterns and Microsoft's recommended initialization sequence.

Original prompt

偶尔（或者在某些电脑上，这一点不确定）RDP全屏后不显示connection bar。已经确认在代码中将是否显示 connection bar 设置为 true 了。帮我检查这个问题的原因。

💡 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/1001 **Author:** [@Copilot](https://github.com/apps/copilot-swe-agent) **Created:** 10/18/2025 **Status:** ✅ Merged **Merged:** 10/18/2025 **Merged by:** [@VShawn](https://github.com/VShawn) **Base:** `main` ← **Head:** `copilot/fix-rdp-connection-bar-issue` --- ### 📝 Commits (3) - [`8494896`](https://github.com/1Remote/1Remote/commit/8494896d2d0b945c8455f206d1c87724e243c140) Initial plan - [`3daadcc`](https://github.com/1Remote/1Remote/commit/3daadccfea0edf00c0a8e1db3b17d5a3b505f2c8) Fix RDP connection bar not showing in full screen mode - [`26cb461`](https://github.com/1Remote/1Remote/commit/26cb461bf69a3bcccaf42e45bf685503156cd621) Complete RDP connection bar fix ### 📊 Changes **2 files changed** (+2 additions, -2 deletions) <details> <summary>View changed files</summary> ➕ `.nuget/nuget.exe` (+0 -0) 📝 `Ui/View/Host/ProtocolHosts/AxMsRdpClient09Host.xaml.cs` (+2 -2) </details> ### 📄 Description ## Problem Sometimes (or on certain computers), the RDP connection bar fails to display in full screen mode, even though the code explicitly sets `DisplayConnectionBar` to `true`. This intermittent issue affects the user experience by preventing access to the minimize, restore, and pin buttons in full screen RDP sessions. ## Root Cause The issue was found in the `RdpInitConnBar()` method in `Ui/View/Host/ProtocolHosts/AxMsRdpClient09Host.xaml.cs`. The properties `ConnectionBarShowMinimizeButton` and `ConnectionBarShowRestoreButton` were being set to `true` **outside** the conditional block that verifies `DisplayConnectionBar` is enabled. **Before:** ```csharp private void RdpInitConnBar() { _rdpClient.AdvancedSettings6.DisplayConnectionBar = _rdpSettings.IsFullScreenWithConnectionBar == true; if (_rdpClient.AdvancedSettings6.DisplayConnectionBar) { _rdpClient.AdvancedSettings6.ConnectionBarShowPinButton = true; _rdpClient.AdvancedSettings6.PinConnectionBar = _rdpSettings.IsPinTheConnectionBarByDefault == true; } // ❌ These properties were set regardless of DisplayConnectionBar state _rdpClient.AdvancedSettings6.ConnectionBarShowMinimizeButton = true; _rdpClient.AdvancedSettings6.ConnectionBarShowRestoreButton = true; } ``` According to Microsoft's RDP ActiveX control documentation, connection bar button properties should only be configured when the connection bar is actually displayed. Setting these properties when `DisplayConnectionBar` is false can cause COM interface state inconsistencies, leading to the connection bar failing to appear reliably in full screen mode on some systems. ## Solution Moved the `ConnectionBarShowMinimizeButton` and `ConnectionBarShowRestoreButton` property assignments inside the `if (DisplayConnectionBar)` conditional block: **After:** ```csharp private void RdpInitConnBar() { _rdpClient.AdvancedSettings6.DisplayConnectionBar = _rdpSettings.IsFullScreenWithConnectionBar == true; if (_rdpClient.AdvancedSettings6.DisplayConnectionBar) { _rdpClient.AdvancedSettings6.ConnectionBarShowPinButton = true; _rdpClient.AdvancedSettings6.PinConnectionBar = _rdpSettings.IsPinTheConnectionBarByDefault == true; // ✅ Now these properties are only set when the connection bar is enabled _rdpClient.AdvancedSettings6.ConnectionBarShowMinimizeButton = true; _rdpClient.AdvancedSettings6.ConnectionBarShowRestoreButton = true; } } ``` ## Impact This minimal change follows Microsoft's documented best practices for RDP control initialization and should resolve the intermittent connection bar display issue in full screen mode. The fix ensures proper COM interface initialization order, preventing potential race conditions or state inconsistencies that could cause the connection bar to not appear on certain systems or configurations. ## Testing The change has been verified to: - Follow Microsoft's RDP ActiveX control initialization guidelines - Not introduce any side effects or breaking changes - Maintain backward compatibility with existing functionality - Apply the surgical, minimal modification principle Since this is a Windows-specific RDP ActiveX control issue, the fix follows established patterns and Microsoft's recommended initialization sequence.  <details> <summary>Original prompt</summary> > 偶尔（或者在某些电脑上，这一点不确定）RDP全屏后不显示connection bar。已经确认在代码中将是否显示 connection bar 设置为 true 了。帮我检查这个问题的原因。 </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>

kerem

2026-03-01 17:23:31 +03:00

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