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  • 实现的WPF外边框窗体

     最近看了一下wpf 越发喜欢. 边看边学,顺便做点东西. WPF 的窗体有点丑.就自己做个窗体,当学习的demo吧

      效果图: 

     实现功能: 最大化;最小化;关闭;按钮三态; 标题栏拖动;双击标题栏最大化或者还原;鼠标在窗体边缘拖动可调整窗体大小;

     1. 右上角三个按钮采用样式实现效果     

     1    <Style x:Key="ButtonIconStyle" TargetType="Button">
 2             <Setter Property="FontFamily" Value="/WindowResize;component/Resources/#iconfont"></Setter>
 3             <Setter Property="Background" Value="Transparent"></Setter>
 4             <Setter Property="Foreground" Value="Black"></Setter>
 5             <Setter Property="BorderBrush" Value="Transparent"></Setter>
 6             <Setter Property="Padding" Value="3,3,3,3" />
 7             <Setter Property="Template" >
 8                 <Setter.Value>
 9                     <ControlTemplate TargetType="{x:Type Button}">
10                         <StackPanel Orientation="Horizontal" VerticalAlignment="Center" >
11                             <TextBlock Name="Icon" 
12                                          Text="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path= Content}" 
13                                          FontSize="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path= FontSize}" 
14                                   />
15                         </StackPanel>
16                         <ControlTemplate.Triggers>
17                                 <Trigger Property="IsMouseOver" Value="True" >
18                                 <Setter Property="Background" Value="Transparent" TargetName="Icon" ></Setter>
19                                 <Setter Property="Foreground" Value="Gray" TargetName="Icon"></Setter>
20                                 </Trigger>
21                                 <Trigger Property="IsPressed" Value="True" >
22                                 <Setter Property="Background" Value="Transparent" TargetName="Icon" ></Setter>
23                                 <Setter Property="Foreground" Value="DarkGray" TargetName="Icon" ></Setter>
24                                 </Trigger>
25                         </ControlTemplate.Triggers>
26                     </ControlTemplate>
27                 </Setter.Value>
28             </Setter>
29            
30         </Style>
    样式

     2. 布局 这里有一个像素的boder

     1  <Border BorderThickness="1,1,1,1" BorderBrush="Black">
 2     <Grid>
 3         <Grid.RowDefinitions>
 4             <RowDefinition Height="30"></RowDefinition>
 5             <RowDefinition Height="*"></RowDefinition>
 6         </Grid.RowDefinitions>
 7         <Grid Grid.Row="0" Background="YellowGreen"  MouseMove="HeaderMouseMove" MouseDown="HeaderMouseDown">
 8             <Grid Height="{Binding Height, RelativeSource={RelativeSource TemplatedParent}}"
 9                 Width="{Binding Width, RelativeSource={RelativeSource TemplatedParent}}" Margin="0,0,0,0">
10                 <Grid.ColumnDefinitions>
11                     <ColumnDefinition Width="*"/>
12                     <ColumnDefinition Width="Auto"/>
13                 </Grid.ColumnDefinitions>
14                 <StackPanel Orientation="Horizontal" Grid.Column="0" Grid.ColumnSpan="2"  >
15                     <Image Source="Resources/icon.png" Width="20" Height="20" Margin="4,0,0,0"></Image>
16                     <TextBlock x:Name="CustomTitle" Text="标题要长一定要长" FontSize="14" 
17                                Margin="4,0,0,0" VerticalAlignment="Center" />
18                 </StackPanel>
19                 <StackPanel Orientation="Horizontal" Grid.Column="2" Margin="0,4,4,4" >
20                     <Button Content="&#xE601;" Style="{StaticResource ButtonIconStyle}"  FontSize="20"    Click="MinClick"  />
21                         <Button Content="&#xE602;"  Style="{StaticResource ButtonIconStyle}" FontSize="16"  Click="MaxClick" />
22                         <Button Content="&#xE600;"  Style="{StaticResource ButtonIconStyle}" FontSize="20"  Click="CloseClick" RenderTransformOrigin="0.52,0.273"/>
23                 </StackPanel>
24             </Grid>
25         </Grid>
26        <Grid Grid.Row="1"></Grid>
27     </Grid>
28     </Border>
    布局

    3. C#代码实现

    •    采用win32函数获取鼠标位置
    •  1  /// <summary>   
 2         /// 获取鼠标的坐标   
 3         /// </summary>   
 4         /// <param name="lpPoint">传址参数，坐标point类型</param>   
 5         /// <returns>获取成功返回真</returns>   
 6         [DllImport("user32.dll", CharSet = CharSet.Auto)]
 7         public static extern bool GetCursorPos(out POINT pt);
 8         public struct POINT
 9         {
10             public int X;
11             public int Y;
12             public POINT(int x, int y)
13             {
14                 this.X = x;
15                 this.Y = y;
16             }
17         }
      获取鼠标信息 
    • 调整位置大小用到的类->网络获取 
       1  public enum HitTest : int
 2     {
 3         HTERROR = -2,
 4         HTTRANSPARENT = -1,
 5         HTNOWHERE = 0,
 6         HTCLIENT = 1,
 7         HTCAPTION = 2,
 8         HTSYSMENU = 3,
 9         HTGROWBOX = 4,
10         HTSIZE = HTGROWBOX,
11         HTMENU = 5,
12         HTHSCROLL = 6,
13         HTVSCROLL = 7,
14         HTMINBUTTON = 8,
15         HTMAXBUTTON = 9,
16         HTLEFT = 10,
17         HTRIGHT = 11,
18         HTTOP = 12,
19         HTTOPLEFT = 13,
20         HTTOPRIGHT = 14,
21         HTBOTTOM = 15,
22         HTBOTTOMLEFT = 16,
23         HTBOTTOMRIGHT = 17,
24         HTBORDER = 18,
25         HTREDUCE = HTMINBUTTON,
26         HTZOOM = HTMAXBUTTON,
27         HTSIZEFIRST = HTLEFT,
28         HTSIZELAST = HTBOTTOMRIGHT,
29         HTOBJECT = 19,
30         HTCLOSE = 20,
31         HTHELP = 21,
32     }
      HitTest 
    • 主要C#代码,很少很简单 
        1         private const int WM_NCHITTEST = 0x0084;
  2         private readonly int agWidth = 8; //拐角宽度  
  3         private readonly int bThickness = 2; // 边框宽度  
  4         private Point mousePoint = new Point(); //鼠标坐标
  5 
  6         protected override void OnSourceInitialized(EventArgs e)
  7         {
  8             base.OnSourceInitialized(e);
  9             HwndSource hwndSource = PresentationSource.FromVisual(this) as HwndSource;
 10             if (hwndSource != null)
 11             {
 12                 hwndSource.AddHook(new HwndSourceHook(this.WndProc));
 13             }
 14         }
 15 
 16         protected virtual IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
 17         {
 18             switch (msg)
 19             {
 20                 case WM_NCHITTEST:
 21                     #region 测试鼠标位置  
 22                     if (WindowState == WindowState.Normal)
 23                     {
 24                         this.mousePoint.X = (lParam.ToInt32() & 0xFFFF);
 25                         this.mousePoint.Y = (lParam.ToInt32() >> 16);
 26                         // 窗口左上角  
 27                         if (this.mousePoint.Y - this.Top <= this.agWidth
 28                             && this.mousePoint.X - this.Left <= this.agWidth)
 29                         {
 30                             handled = true;
 31                             return new IntPtr((int) HitTest.HTTOPLEFT);
 32 
 33                         }
 34                         // 窗口左下角      
 35                         else if (this.ActualHeight + this.Top - this.mousePoint.Y <= this.agWidth
 36                                  && this.mousePoint.X - this.Left <= this.agWidth)
 37                         {
 38                             handled = true;
 39                             return new IntPtr((int) HitTest.HTBOTTOMLEFT);
 40                         }
 41                         // 窗口右上角  
 42                         else if (this.mousePoint.Y - this.Top <= this.agWidth
 43                                  && this.ActualWidth + this.Left - this.mousePoint.X <= this.agWidth)
 44                         {
 45                             handled = true;
 46                             return new IntPtr((int) HitTest.HTTOPRIGHT);
 47                         }
 48                         // 窗口右下角  
 49                         else if (this.ActualWidth + this.Left - this.mousePoint.X <= this.agWidth
 50                                  && this.ActualHeight + this.Top - this.mousePoint.Y <= this.agWidth)
 51                         {
 52                             handled = true;
 53                             return new IntPtr((int) HitTest.HTBOTTOMRIGHT);
 54                         }
 55                         // 窗口左侧  
 56                         else if (this.mousePoint.X - this.Left <= this.bThickness)
 57                         {
 58                             handled = true;
 59                             return new IntPtr((int) HitTest.HTLEFT);
 60                         }
 61                         // 窗口右侧  
 62                         else if (this.ActualWidth + this.Left - this.mousePoint.X <= this.bThickness)
 63                         {
 64                             handled = true;
 65                             return new IntPtr((int) HitTest.HTRIGHT);
 66                         }
 67                         // 窗口上方  
 68                         else if (this.mousePoint.Y - this.Top <= this.bThickness)
 69                         {
 70                             handled = true;
 71                             return new IntPtr((int) HitTest.HTTOP);
 72                         }
 73                         // 窗口下方  
 74                         else if (this.ActualHeight + this.Top - this.mousePoint.Y <= this.bThickness)
 75                         {
 76                             handled = true;
 77                             return new IntPtr((int) HitTest.HTBOTTOM);
 78                         }
 79                     }
 80                     //else // 窗口移动  
 81                     //{
 82                     //    handled = true;
 83                     //    return new IntPtr((int)HitTest.HTCAPTION);
 84                     //}
 85                     break;
 86 
 87                     #endregion
 88             }
 89             return IntPtr.Zero;
 90         }
 91 
 92         private void HeaderMouseMove(object sender, MouseEventArgs e)
 93         {
 94            
 95             if (e.LeftButton == MouseButtonState.Pressed)
 96             {
 97 
 98                 if (this.WindowState == WindowState.Maximized)
 99                 {
100                     POINT px;
101                     GetCursorPos(out px);
102                     this.WindowState = WindowState.Normal;
103                     Point p = e.GetPosition(sender as IInputElement);
104                     double x = SystemParameters.WorkArea.Width;//得到屏幕工作区域宽度
105                     this.Left = px.X - (p.X/x)*this.Width;
106                     this.Top = px.Y - 5;
107 
108                 }
109                 else
110                     this.DragMove();
111             }
112         }
113 
114         private void MinClick(object sender, RoutedEventArgs e)
115         {
116            this.WindowState= WindowState.Minimized;
117         }
118 
119         private void MaxClick(object sender, RoutedEventArgs e)
120         {
121             if (this.WindowState == WindowState.Maximized)
122             {
123                 this.WindowState = WindowState.Normal;
124             }
125             else
126             {
127                 this.WindowState = WindowState.Maximized;
128 
129             }
130         }
131 
132         private void CloseClick(object sender, RoutedEventArgs e)
133         {
134             this.Close();
135         }
136 
137         private void HeaderMouseDown(object sender, MouseButtonEventArgs e)
138         {
139             if (e.ClickCount == 2)
140             {
141                 this.WindowState = this.WindowState == WindowState.Maximized
142                     ? WindowState.Normal
143                     : WindowState.Maximized;
144             }
145         }
      功能主要cs代码
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  • 原文地址：https://www.cnblogs.com/hda37210/p/5133896.html
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