win10的透明毛玻璃，winform和wpf方法，win7、8不能用，只是win10
public partial class Form1 : Form
{
[DllImport("user32.dll")]
internal static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttributeData data);
[StructLayout(LayoutKind.Sequential)]
internal struct WindowCompositionAttributeData
{
public WindowCompositionAttribute Attribute;
public IntPtr Data;
public int SizeOfData;
}
internal enum WindowCompositionAttribute
{
WCA_ACCENT_POLICY = 19
}
internal enum AccentState
{
ACCENT_DISABLED = 0,
ACCENT_ENABLE_GRADIENT = 1,
ACCENT_ENABLE_TRANSPARENTGRADIENT = 2,
ACCENT_ENABLE_BLURBEHIND = 3,
ACCENT_INVALID_STATE = 4
}
[StructLayout(LayoutKind.Sequential)]
internal struct AccentPolicy
{
public AccentState AccentState;
public int AccentFlags;
public int GradientColor;
public int AnimationId;
}
internal void EnableBlur()
{
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(this.Handle, ref data);
Marshal.FreeHGlobal(accentPtr);
}
...................
...................
private void Form1_Load(object sender, EventArgs e)
{
EnableBlur();
}
窗体背景设置比如Red，然后TransparencyKey=Red，就有行了。
如果使用WPF，修改：
internal void EnableBlur()
{
var windowHelper = new WindowInteropHelper(this);
......
......
SetWindowCompositionAttribute(windowHelper.Handle, ref data);
......
}
