private static void SetAccentPolicy(IntPtr windowHandle, bool isWindowActive, bool isDarkTheme)
{
//DwmHelper.WindowExtendIntoClientArea(windowHandle, new MARGINS(-1, -1, -1, -1));
DwmHelper.WindowExtendIntoClientArea(windowHandle, new MARGINS {
cyBottomHeight = 1
});
//DwmHelper.SetWindowAttributeValue(windowHandle, DWMWINDOWATTRIBUTE.VISIBLE_FRAME_BORDER_THICKNESS, 0);
var accentPolicy = default(AccentPolicy);
var accentPolicySize = Marshal.SizeOf(accentPolicy);
accentPolicy.AccentFlags = 2;
accentPolicy.AccentState = isWindowActive switch
{
true when OSVersionHelper.IsWindows10_1803_OrGreater => AccentState.ACCENT_ENABLE_ACRYLICBLURBEHIND,
true when OSVersionHelper.IsWindows10_OrGreater => AccentState.ACCENT_ENABLE_BLURBEHIND,
true => AccentState.ACCENT_ENABLE_TRANSPARENTGRADIENT,
false => AccentState.ACCENT_ENABLE_HOSTBACKDROP
};
accentPolicy.GradientColor = isDarkTheme ? 0x99000000 : 0x99FFFFFF; //ResourceHelper.GetResource<uint>(ResourceToken.BlurGradientValue);
var accentPtr = Marshal.AllocHGlobal(accentPolicySize);
Marshal.StructureToPtr(accentPolicy, accentPtr, false);
var data = new WindowCompositionAttributeData
{
Attribute = WindowCompositionAttribute.WCA_ACCENT_POLICY,
SizeOfData = accentPolicySize,
Data = accentPtr
};
SetWindowCompositionAttribute(windowHandle, ref data);
Marshal.FreeHGlobal(accentPtr);
}
public WindowBase()
{
this.ContentRendered += delegate
{
//添加窗口阴影
ShadowWindow.Attach(this);
};
if (DwmHelper.IsDwmSupported)
{
DwmHelper = new DwmHelper(this);
DwmHelper.AeroGlassEffectChanged += DwmHelper_AeroGlassEffectChanged;
}
}
private static void EnableMicaEffect(IntPtr windowHandle, bool isDarkTheme)
{
DwmHelper.WindowExtendIntoClientArea(windowHandle, new MARGINS {
cxLeftWidth = -1, cyTopHeight = -1, cxRightWidth = -1, cyBottomHeight = -1
});
//var value = NativeMethods.DwmGetWindowAttribute(windowHandle, DWMWINDOWATTRIBUTE.CAPTION_BUTTON_BOUNDS, out RECT rect, Marshal.SizeOf<RECT>());
var trueValue = 0x01;
var falseValue = 0x00;
// Set dark mode before applying the material, otherwise you'll get an ugly flash when displaying the window.
if (isDarkTheme)
{
DwmHelper.SetWindowAttributeValue(windowHandle, DWMWINDOWATTRIBUTE.DWMWA_USE_IMMERSIVE_DARK_MODE, trueValue);
}
else
{
DwmHelper.SetWindowAttributeValue(windowHandle, DWMWINDOWATTRIBUTE.DWMWA_USE_IMMERSIVE_DARK_MODE, falseValue);
}
//MICA_EFFECT = 1029, // [set] BOOL, Enables or disables the Mica window effect
DwmHelper.SetWindowAttributeValue(windowHandle, (DWMWINDOWATTRIBUTE)1029, trueValue);
}
public MainWindow()
{
InitializeComponent();
DwmHelper.DropShadowToWindow(this);
}
