public static void enableDarkTitlebar(IntPtr handle, bool dark)
{
AllowDarkModeForWindow(handle, dark);
int sizeOfData = Marshal.SizeOf(dark);
IntPtr dataPtr = Marshal.AllocHGlobal(sizeOfData);
WindowCompositionAttribData data = new WindowCompositionAttribData
{
Attribute = WindowCompositionAttribute.WCA_USEDARKMODECOLORS,
Data = dataPtr,
SizeOfData = sizeOfData
};
SetWindowCompositionAttribute(handle, ref data);
Marshal.FreeHGlobal(dataPtr);
}
static bool SetAccentPolicy(Window window, AccentState accentState)
{
var windowHelper = new WindowInteropHelper(window);
var accent = new AccentPolicy
{
AccentState = accentState,
AccentFlags = GetAccentFlagsForTaskbarPosition(),
AnimationId = 3
};
var accentStructSize = Marshal.SizeOf(accent);
var accentPtr = Marshal.AllocHGlobal(accentStructSize);
Marshal.StructureToPtr(accent, accentPtr, false);
var data = new WindowCompositionAttribData
{
Attribute = WindowCompositionAttribute.WCA_ACCENT_POLICY,
SizeOfData = accentStructSize,
Data = accentPtr
};
var result = NativeMethods.SetWindowCompositionAttribute(windowHelper.Handle, ref data);
Marshal.FreeHGlobal(accentPtr);
return(result);
}
public static bool SetAeroGlass(this Window window, bool enable)
{
if (window == null)
throw new ArgumentNullException(nameof(window));
if (Environment.OSVersion.Version.Major < 6)
{
// An OS older than Windows Vista.
return false;
}
if (SystemParameters.HighContrast)
{
// Blur is not useful in high contrast mode.
return false;
}
try
{
var windowHelper = new WindowInteropHelper(window);
var accent = new AccentPolicy
{
AccentState = enable ? AccentState.ACCENT_ENABLE_BLURBEHIND : AccentState.ACCENT_DISABLED,
//AccentFlags = AccentFlags.DrawAllBorders
};
var accentStructSize = Marshal.SizeOf(accent);
var accentPtr = Marshal.AllocHGlobal(accentStructSize);
Marshal.StructureToPtr(accent, accentPtr, false);
var data = new WindowCompositionAttribData
{
Attribute = WindowCompositionAttribute.WCA_ACCENT_POLICY,
SizeOfData = accentStructSize,
Data = accentPtr
};
SetWindowCompositionAttribute(windowHelper.Handle, ref data);
Marshal.FreeHGlobal(accentPtr);
}
catch (DllNotFoundException)
{
return false;
}
return true;
}
internal static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttribData data);
internal static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttribData data);
private static extern bool SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttribData data);