public static void Apply(Window window, Color backgroundColor, AccentState state = AccentState.AcrylicBlurBehind)
{
int getColorCode(Color color)
{
return(color.A << 24 | // DWM uses ABGR format
color.B << 16 |
color.G << 8 |
color.R);
}
var helper = new WindowInteropHelper(window);
var accent = new AccentPolicy();
var accentSize = Marshal.SizeOf(accent);
accent.AccentState = state;
accent.GradientColor = getColorCode(backgroundColor);
var accentPointer = Marshal.AllocHGlobal(accentSize);
Marshal.StructureToPtr(accent, accentPointer, false);
var data = new WindowsCompostionAttributeData
{
Attribute = 19, //WindowCompositionAttribute.AccentPolicy
SizeOfData = accentSize,
Data = accentPointer,
};
SetWindowCompositionAttribute(helper.Handle, ref data);
Marshal.FreeHGlobal(accentPointer);
}
private static extern int SetWindowCompositionAttribute(IntPtr hWnd, ref WindowsCompostionAttributeData data);
