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Use PInvoke.DwmSetWindowAttribute instead of DllImport

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This commit is contained in:
Jack251970 2025-03-16 14:23:29 +08:00
parent 07b0e7263f
commit e4ade45d83
2 changed files with 50 additions and 57 deletions
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68
Flow.Launcher.Core/Resource/Theme.cs
View file

@ -12,7 +12,6 @@ using System.Windows.Shell;
using Flow.Launcher.Infrastructure;
using Flow.Launcher.Infrastructure.Logger;
using Flow.Launcher.Infrastructure.UserSettings;
using static Flow.Launcher.Core.Resource.Theme.ParameterTypes;
using System.Runtime.InteropServices;
using System.Windows.Interop;
using Microsoft.Win32;
@ -86,37 +85,6 @@ namespace Flow.Launcher.Core.Resource
IntPtr hWnd = new WindowInteropHelper(window).Handle;
DwmSetWindowAttribute(hWnd, DWMWA_WINDOW_CORNER_PREFERENCE, ref preference, sizeof(int));
}
public class ParameterTypes
{
[Flags]
public enum DWMWINDOWATTRIBUTE
{
DWMWA_USE_IMMERSIVE_DARK_MODE = 20,
DWMWA_SYSTEMBACKDROP_TYPE = 38,
DWMWA_TRANSITIONS_FORCEDISABLED = 3,
DWMWA_BORDER_COLOR
}
[StructLayout(LayoutKind.Sequential)]
public struct MARGINS
{
public int cxLeftWidth; // width of left border that retains its size
public int cxRightWidth; // width of right border that retains its size
public int cyTopHeight; // height of top border that retains its size
public int cyBottomHeight; // height of bottom border that retains its size
};
}
public static class Methods
{
[DllImport("dwmapi.dll")]
static extern int DwmSetWindowAttribute(IntPtr hwnd, ParameterTypes.DWMWINDOWATTRIBUTE dwAttribute, ref int pvAttribute, int cbAttribute);
public static int SetWindowAttribute(IntPtr hwnd, ParameterTypes.DWMWINDOWATTRIBUTE attribute, int parameter)
=> DwmSetWindowAttribute(hwnd, attribute, ref parameter, Marshal.SizeOf<int>());
}
private Window GetMainWindow()
{
@ -221,7 +189,7 @@ namespace Flow.Launcher.Core.Resource
if (windowBorderStyle == null)
return;
System.Windows.Window mainWindow = GetMainWindow();
Window mainWindow = GetMainWindow();
if (mainWindow == null)
return;
@ -232,42 +200,28 @@ namespace Flow.Launcher.Core.Resource
_settings.BackdropType = BackdropTypes.None;
}
// Check the configured BackdropType
int backdropValue = _settings.BackdropType switch
{
BackdropTypes.Acrylic => 3, // Acrylic
BackdropTypes.Mica => 2, // Mica
BackdropTypes.MicaAlt => 4, // MicaAlt
_ => 0 // None
};
if (BlurEnabled && hasBlur && Win32Helper.IsBackdropSupported())
{
// If the BackdropType is Mica or MicaAlt, set the windowborderstyle's background to transparent
// If the BackdropType is Mica or MicaAlt, set the windowborderstyle's background to transparent
if (_settings.BackdropType == BackdropTypes.Mica || _settings.BackdropType == BackdropTypes.MicaAlt)
{
windowBorderStyle.Setters.Remove(windowBorderStyle.Setters.OfType<Setter>().FirstOrDefault(x => x.Property.Name == "Background"));
windowBorderStyle.Setters.Add(new Setter(Border.BackgroundProperty, new SolidColorBrush(Color.FromArgb(1, 0, 0, 0))));
Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_SYSTEMBACKDROP_TYPE, backdropValue);
ColorizeWindow(GetSystemBG());
}
else if (_settings.BackdropType == BackdropTypes.Acrylic)
{
windowBorderStyle.Setters.Remove(windowBorderStyle.Setters.OfType<Setter>().FirstOrDefault(x => x.Property.Name == "Background"));
windowBorderStyle.Setters.Add(new Setter(Border.BackgroundProperty, new SolidColorBrush(Colors.Transparent)));
Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_SYSTEMBACKDROP_TYPE, backdropValue);
ColorizeWindow(GetSystemBG());
}
else
{
Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_SYSTEMBACKDROP_TYPE, backdropValue);
ColorizeWindow(GetSystemBG());
}
// Apply the blur effect
Win32Helper.DWMSetBackdropForWindow(mainWindow, _settings.BackdropType);
ColorizeWindow(GetSystemBG());
}
else
{
// Apply default style when Blur is disabled
Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_SYSTEMBACKDROP_TYPE, 0);
// Apply default style when Blur is disabled
Win32Helper.DWMSetBackdropForWindow(mainWindow, BackdropTypes.None);
ColorizeWindow(GetSystemBG());
}
@ -401,9 +355,9 @@ namespace Flow.Launcher.Core.Resource
useDarkMode = isSystemDark; // Auto (based on system setting)
}
// Apply DWM Dark Mode
Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_USE_IMMERSIVE_DARK_MODE, useDarkMode ? 1 : 0);
// Apply DWM Dark Mode
Win32Helper.DWMSetDarkModeForWindow(mainWindow, useDarkMode);
Color LightBG;
Color DarkBG;

39
Flow.Launcher.Infrastructure/Win32Helper.cs
View file

@ -4,11 +4,50 @@ using System.Windows.Interop;
using System.Windows;
using Windows.Win32;
using Windows.Win32.Graphics.Dwm;
using Flow.Launcher.Infrastructure.UserSettings;
namespace Flow.Launcher.Infrastructure
{
public static class Win32Helper
{
#region Blur Handling
public static unsafe bool DWMSetBackdropForWindow(Window window, BackdropTypes backdrop)
{
var windowHelper = new WindowInteropHelper(window);
windowHelper.EnsureHandle();
var backdropType = backdrop switch
{
BackdropTypes.Acrylic => DWM_SYSTEMBACKDROP_TYPE.DWMSBT_TRANSIENTWINDOW,
BackdropTypes.Mica => DWM_SYSTEMBACKDROP_TYPE.DWMSBT_MAINWINDOW,
BackdropTypes.MicaAlt => DWM_SYSTEMBACKDROP_TYPE.DWMSBT_TABBEDWINDOW,
_ => DWM_SYSTEMBACKDROP_TYPE.DWMSBT_AUTO
};
return PInvoke.DwmSetWindowAttribute(
new(windowHelper.Handle),
DWMWINDOWATTRIBUTE.DWMWA_SYSTEMBACKDROP_TYPE,
&backdropType,
(uint)Marshal.SizeOf<int>()).Succeeded;
}
public static unsafe bool DWMSetDarkModeForWindow(Window window, bool useDarkMode)
{
var windowHelper = new WindowInteropHelper(window);
windowHelper.EnsureHandle();
var darkMode = useDarkMode ? 1 : 0;
return PInvoke.DwmSetWindowAttribute(
new(windowHelper.Handle),
DWMWINDOWATTRIBUTE.DWMWA_USE_IMMERSIVE_DARK_MODE,
&darkMode,
(uint)Marshal.SizeOf<int>()).Succeeded;
}
#endregion
#region Backdrop
public static bool IsBackdropSupported()