基于Erics答案。
public-partial-class-mainwindow:window
{
[dllimport(“dwmapi.dll”)]
公共静态外部int dwmextendframeintoclientarea(
IntPtr hwnd
参考利润率pmarinset);
[dllimport(“user32.dll”,charset=charset.auto)]
公共静态外部intptr defwindowproc(
IntPtr hWnd
int
IntPtr wParam
IntPtr lParam);
private const int wm_nchittest=0x0084;
private const int htborder=18;
private const int htbottom=15;
private const int htbottomlet=16;
private const int htbottomright=17;
private const int htleft=10;
private const int htright=11;
private const int httop=12;
private const int httopleft=13;
private const int httopright=14;
公共主窗口()
{
初始化组件();
this.loaded+=新的routedeventhandler(主窗口已加载);
}
已加载void主窗口(对象发送方、RoutedEventargs e)
{
尝试
{
//获取wpf应用程序的窗口句柄
intptr mainWindowptr=新的WindowInteropHelper(this).handle;
hwndsource mainwindowsrc=hwndsource.fromhwnd(主窗口指针);
mainWindowsrc.compositionTarget.backgroundColor=color.fromargb(0,0,0,0);
主窗口rc.addhook(wndproc);
/设置边距
页边距=新页边距();
页边距.cxlefwidth=10;
页边距.cxRightWidth=10;
页边距.cyBottomHeight=10;
边缘。细胞重量=10;
int hr=dwmextendframeintoclientarea(主窗口rc.handle,参考页边距);
/ /
如果(HR & lt;0)
{
//dwmextendframeintoclientarea失败
}
}
//如果不是Vista,请将背景漆成白色。
catch(dllnotfoundException)
{
application.current.mainwindow.background=画笔.white;
}
}
private intptr wndproc(intptr hwnd,int msg,intptr wparam,intptr lparam,ref bool handled)
{
//重写窗口命中测试
//如果光标位于调整大小的边框上,
//返回标准边框结果。
如果(msg==wm-nchittest)
{
处理=真;
var htlocation=defwindowproc(hwnd,msg,wparam,lparam).toint32();
开关(H位置)
{
HTBOTTOM案:
案例HTBottomLeft:
案例H右下角:
HTLEFT案:
HTRIGHT案:
HTTOP案:
HTTOPLEFT案:
右上角大小写:
htlocation=htborder;
断裂;
}
返回新的intptr(htlocation);
}
返回intptr.zero;
}
“私人作废”按钮“单击”(对象发送者、路由器和目标)
{
这个。
}
}
[结构布局(layoutkind.sequential)]
公共结构页边距
{
public int cxlefwidth;//保留其大小的左边框宽度
public int cxrightwidth;//保留其大小的右边框宽度
public int cytopheight;//保留其大小的上边框高度
public int cybottomheight;//保留其大小的下边框高度
};
<window x:class=“wpfApplication1.mainWindow”窗口
xmlns=“http://schemas.microsoft.com/winfx/2006/xaml/presentation”(http://schemas.microsoft.com/winfx/2006/xaml/presentation)
xmlns:x=“http://schemas.microsoft.com/winfx/2006/xaml”
title=“主窗口”height=“150”width=“200”
background=“透明”
windowstyle=“无”
resizeMode=“可以调整大小”
gt;
<grid background=“white”margin=“10,10,10,10”>
<button content=“go away”click=“button\u click”height=“20”width=“100”/>
和/格栅& GT;
&窗/窗;
< /代码>
public partial class MainWindow : Window
{
[DllImport("DwmApi.dll")]
public static extern int DwmExtendFrameIntoClientArea(
IntPtr hwnd,
ref MARGINS pMarInset);
[DllImport("user32.dll", CharSet = CharSet.Auto)]
public static extern IntPtr DefWindowProc(
IntPtr hWnd,
int msg,
IntPtr wParam,
IntPtr lParam);
private const int WM_NCHITTEST = 0x0084;
private const int HTBORDER = 18;
private const int HTBOTTOM = 15;
private const int HTBOTTOMLEFT = 16;
private const int HTBOTTOMRIGHT = 17;
private const int HTLEFT = 10;
private const int HTRIGHT = 11;
private const int HTTOP = 12;
private const int HTTOPLEFT = 13;
private const int HTTOPRIGHT = 14;
public MainWindow()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(MainWindow_Loaded);
}
void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
try
{
// Obtain the window handle for WPF application
IntPtr mainWindowPtr = new WindowInteropHelper(this).Handle;
HwndSource mainWindowSrc = HwndSource.FromHwnd(mainWindowPtr);
mainWindowSrc.CompositionTarget.BackgroundColor = Color.FromArgb(0, 0, 0, 0);
mainWindowSrc.AddHook(WndProc);
// Set Margins
MARGINS margins = new MARGINS();
margins.cxLeftWidth = 10;
margins.cxRightWidth = 10;
margins.cyBottomHeight = 10;
margins.cyTopHeight = 10;
int hr = DwmExtendFrameIntoClientArea(mainWindowSrc.Handle, ref margins);
//
if (hr < 0)
{
//DwmExtendFrameIntoClientArea Failed
}
}
// If not Vista, paint background white.
catch (DllNotFoundException)
{
Application.Current.MainWindow.Background = Brushes.White;
}
}
private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
// Override the window hit test
// and if the cursor is over a resize border,
// return a standard border result instead.
if (msg == WM_NCHITTEST)
{
handled = true;
var htLocation = DefWindowProc(hwnd, msg, wParam, lParam).ToInt32();
switch (htLocation)
{
case HTBOTTOM:
case HTBOTTOMLEFT:
case HTBOTTOMRIGHT:
case HTLEFT:
case HTRIGHT:
case HTTOP:
case HTTOPLEFT:
case HTTOPRIGHT:
htLocation = HTBORDER;
break;
}
return new IntPtr(htLocation);
}
return IntPtr.Zero;
}
private void Button_Click(object sender, RoutedEventArgs e)
{
this.Close();
}
}
[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
};
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="150" Width="200"
Background="Transparent"
WindowStyle="None"
ResizeMode="CanResize"
>
<Grid Background="White" Margin="10,10,10,10">
<Button Content="Go Away" Click="Button_Click" Height="20" Width="100" />
</Grid>
</Window>
