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c#windowstaskbarwindows-api-code-pack

Windowless Taskbar Button


I would like to create a windowless taskbar button, just like Windows Live Messenger does it:

Windows live messenger taskbar icon

How can I do that in C#? The Windows API Code pack looks helpful, but I haven't found any way to create a taskbar button with it.


Solution

  • Create a hidden window (CreateWindow and then ShowWindow(hwnd, SW_HIDE). This is will make the taskbar show an icon.

    Then use the ITaskbarList, ITaskbarList2, ITaskbarList3, ITaskbarList4 APIs to set a different thumbnail for the window.