private void ToggleBlur(bool? state)
{
var accent = new AccentPolicy();
state = (state == null) ? DEFAULT_BLUR : Convert.ToBoolean(state);
if ((bool)state)
{
accent.AccentState = AccentState.ACCENT_ENABLE_BLURBEHIND;
}
else
{
accent.AccentState = AccentState.ACCENT_DISABLED;
}
var accentStructSize = Marshal.SizeOf(accent);
var accentPtr = Marshal.AllocHGlobal(accentStructSize);
Marshal.StructureToPtr(accent, accentPtr, false);
var data = new WindowCompositionAttributeData();
data.Attribute = WindowCompositionAttribute.WCA_ACCENT_POLICY;
data.SizeOfData = accentStructSize;
data.Data = accentPtr;
SetWindowCompositionAttribute(Helper.Handle, ref data);
Marshal.FreeHGlobal(accentPtr);
}
internal void EnableBlur()
{
var windowHelper = new WindowInteropHelper(this);
var accent = new AccentPolicy();
var accentStructSize = Marshal.SizeOf(accent);
accent.AccentState = AccentState.ACCENT_ENABLE_BLURBEHIND;
var accentPtr = Marshal.AllocHGlobal(accentStructSize);
Marshal.StructureToPtr(accent, accentPtr, false);
var data = new WindowCompositionAttributeData();
data.Attribute = WindowCompositionAttribute.WCA_ACCENT_POLICY;
data.SizeOfData = accentStructSize;
data.Data = accentPtr;
SetWindowCompositionAttribute(windowHelper.Handle, ref data);
Marshal.FreeHGlobal(accentPtr);
}
internal static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttributeData data);
private void SetWindowAccent(Window wind, AccentState themeAccentMode)
{
var windowHelper = new WindowInteropHelper(wind);
var accent = new AccentPolicy { AccentState = themeAccentMode };
var accentStructSize = Marshal.SizeOf(accent);
var accentPtr = Marshal.AllocHGlobal(accentStructSize);
Marshal.StructureToPtr(accent, accentPtr, false);
var data = new WindowCompositionAttributeData
{
Attribute = WindowCompositionAttribute.WCA_ACCENT_POLICY,
SizeOfData = accentStructSize,
Data = accentPtr
};
SetWindowCompositionAttribute(windowHelper.Handle, ref data);
Marshal.FreeHGlobal(accentPtr);
}
private static extern int SetWindowCompositionAttribute(IntPtr hWnd, ref WindowCompositionAttributeData data);
public static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttributeData data);
private static extern bool SetWindowCompositionAttribute(
IntPtr hwnd,
ref WindowCompositionAttributeData data);
/// <summary>
/// Too complicated to explain, so no comments
/// </summary>
/// <param name="taskbars"></param>
/// <param name="taskbarState"></param>
internal static void SetBarState(this List <Taskbar> taskbars, TaskbarState taskbarState)
{
if (taskbarState.HideTaskbarCompletely)
{
AutoHide.SetAutoHide(true);
foreach (var taskbar in taskbars)
{
ShowWindow(taskbar.Handle, SwHide);
}
}
else
{
if (taskbarState.TransparentMode == TransparentModeType.Disabled)
{
ButtonSize.SetIconSize(taskbarState.IconSize);
AutoHide.SetAutoHide(taskbarState.IsAutoHide);
foreach (var taskbar in taskbars)
{
ShowWindow(taskbar.Handle, SwShow);
}
if (_accentPtr == IntPtr.Zero)
{
return;
}
PostMessage(IntPtr.Zero, WmThemechanged, IntPtr.Zero, IntPtr.Zero);
Marshal.FreeHGlobal(_accentPtr);
_accentPtr = IntPtr.Zero;
}
else
{
if (_accentPtr == IntPtr.Zero)
{
var size = Marshal.SizeOf(typeof(AccentPolicy));
_accentPtr = Marshal.AllocHGlobal(size);
_data = new WindowCompositionAttributeData
{
Attribute = 19,
SizeOfData = size,
Data = _accentPtr
};
}
AccentPolicy accent;
switch (taskbarState.TransparentMode)
{
case TransparentModeType.Transparent:
accent = new AccentPolicy
{
AccentState = 3,
AccentFlags = 1
};
break;
case TransparentModeType.Blur:
accent = new AccentPolicy
{
AccentState = 2,
AccentFlags = 2,
GradientColor = 0
};
break;
default:
throw new ArgumentOutOfRangeException();
}
Marshal.StructureToPtr(accent, _accentPtr, false);
ButtonSize.SetIconSize(taskbarState.IconSize);
AutoHide.SetAutoHide(taskbarState.IsAutoHide);
foreach (var taskbar in taskbars)
{
SetWindowCompositionAttribute(taskbar.Handle, ref _data);
ShowWindow(taskbar.Handle, SwShow);
}
}
}
}
internal static extern IntPtr SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttributeData data);