dotnet/winforms

[Dark Mode] ToolTip is not in dark mode after enabled SystemColorMode.Dark

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#11,954 创建于 2024年8月21日

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 (2 评论) (2 反应) (1 负责人)C# (4,100 star) (922 fork)batch import
:construction: work in progressarea-DarkModehelp wanted

描述

.NET version

9.0.0-rc.1.24418.2 + private dlls built from winforms repo main branch

Did it work in .NET Framework?

No

Did it work in any of the earlier releases of .NET Core or .NET 5+?

This is a new feature Dark Mode: https://github.com/dotnet/winforms/pull/11857

Issue description

ToolTip is not in dark mode after enabled SystemColorMode.Dark image

Steps to reproduce

  1. Create a WinForms .NET application with checkBox and toolTip controls
  2. Find the ToolTip on toolTip1 property of checkBox, then set some text for this property
  3. Enable DarkMode by Application.SetColorMode(SystemColorMode.Dark) in Program.cs file
  4. Run application, tab or mouse over this checkBox to observe the keyboard tooltip or mouse tooltip

贡献者指南

技术栈
csharp
领域
desktop
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
active
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
C# basicsWinForms basics
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
60
研究方向
The issue is that ToolTip does not respect dark mode when SystemColorMode.Dark is enabled. The dark mode feature was introduced in PR #11857. To fix, examine the ToolTip control's painting logic in the WinForms source code, specifically how it handles system colors. Look at the ToolTip's OnPaint or related methods to ensure it uses the dark mode color palette when appropriate. The issue mentions that the tooltip appears with a white background, so the fix likely involves updating the default background and text colors of the ToolTip.