TaskBarIcon is blurry compared to AppWindow.SetIcon

[mikebattista]

With a 256x256 .ico, AppWindow.SetIcon results in a sharp taskbar icon while setting TaskBarIcon in XAML or with Icon.FromFile results in a blurry icon.

Could the 16x16 dimensions provided below be to blame?

WinUIEx/src/WinUIEx/Icon.cs

Line 47 in 8c84bc9

var handle = PInvoke.LoadImage(null, filename, GDI_IMAGE_TYPE.IMAGE_ICON, 16, 16, Windows.Win32.UI.Controls.IMAGE_FLAGS.LR_LOADFROMFILE);

[sylveon]

The proper method to use would be LoadIconMetric, for both large and small icons. This should make it DPI aware as well. Alternatively, WinUIEx could migrate to AppWindow.SetIcon of course.

[rocksdanister]

Can you not pass the large icon size by using GetSystemMetricsForDpi

or use LoadIconMetric this will require adding to the manifest

    <dependentAssembly>
      <assemblyIdentity
          type="win32"
          name="Microsoft.Windows.Common-Controls"
          version="6.0.0.0"
          processorArchitecture="*"
          publicKeyToken="6595b64144ccf1df"
          language="*"
        />
    </dependentAssembly>
  </dependency>

Original:

GetSystemMetric:

LoadIconMetric with smallicon (can't get large to work 🤔)