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最近在看《深入淺出WPF》，在做練習的時候自己做了一下擴展，在此記下：

XAML代碼：

1 <Window x:Class="TestCanvas.MainWindow" 2 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 3 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 4 Title="登錄" Height="110px" Width="300px" WindowStartupLocation="CenterScreen" WindowStyle="None" 5 MaxHeight="110px" MaxWidth="300px" MinHeight="110px" MinWidth="300px" MouseDown="Mouse_downHandler"> 6 <Canvas> 7 <TextBlock Text="用戶名：" Canvas.Left="12px" Canvas.Top="12px"/> 8 <TextBox x:Name="tbUserName" Height="23px" Width="200px" BorderBrush="Black" Canvas.Left="66px" Canvas.Top="9px"/> 9 <TextBlock Text="密碼：" Canvas.Left="12px" Canvas.Top="40.72px" Height="16px" Width="36px"/> 10 <TextBox x:Name="tbPasword" Height="23px" Width="200px" BorderBrush="Black" Canvas.Left="66px" Canvas.Top="38px"/> 11 <Button Content="登錄" Width="80px" Height="23px" Canvas.Left="66" Canvas.Top="67px"/> 12 <Button Content="退出" Width="80px" Height="23px" Canvas.Left="186" Canvas.Top="67px" Click="Close_clickHandler"/> 13 </Canvas> 14 </Window>

CSharp代碼：

1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Runtime.InteropServices; 5 using System.Text; 6 using System.Threading.Tasks; 7 using System.Windows; 8 using System.Windows.Controls; 9 using System.Windows.Data; 10 using System.Windows.Documents; 11 using System.Windows.Input; 12 using System.Windows.Media; 13 using System.Windows.Media.Imaging; 14 using System.Windows.Navigation; 15 using System.Windows.Shapes; 16 17 namespace TestCanvas 18 { 19 /// <summary> 20 /// MainWindow.xaml 的交互邏輯 21 /// </summary> 22 public partial class MainWindow : Window 23 { 24 [StructLayout(LayoutKind.Sequential)] 25 public struct POINT 26 { 27 public int X; 28 public int Y; 29 30 public POINT(int x, int y) 31 { 32 this.X = x; 33 this.Y = y; 34 } 35 } 36 37 [DllImport("user32.dll", CharSet = CharSet.Auto)] 38 public static extern bool GetCursorPos(out POINT pt); 39 40 public MainWindow() 41 { 42 InitializeComponent(); 43 } 44 45 public void Close_clickHandler(Object sender, RoutedEventArgs e) 46 { 47 this.Close(); 48 } 49 50 private void Mouse_downHandler(object sender, MouseButtonEventArgs e) 51 { 52 Point p = e.MouseDevice.GetPosition(this); //獲取鼠標相對位置 53 54 MainWindow.POINT pit = new MainWindow.POINT(); 55 MainWindow.GetCursorPos(out pit); //獲取鼠標絕對位置 56 57 StringBuilder sbRel = new StringBuilder(); 58 sbRel.Append("相對位置：("); 59 sbRel.Append(p.X); 60 sbRel.Append(","); 61 sbRel.Append(p.Y); 62 sbRel.Append(")"); 63 tbUserName.Text = sbRel.ToString(); 64 65 StringBuilder sbAbs = new StringBuilder(); 66 sbAbs.Append("絕對位置：("); 67 sbAbs.Append(pit.X); 68 sbAbs.Append(","); 69 sbAbs.Append(pit.Y); 70 sbAbs.Append(")"); 71 tbPasword.Text = sbAbs.ToString(); 72 } 73 } 74 }

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