C# WPF Call VC++ DLL

標題：C# WPF呼叫C++ DLL動態函式庫
C++ (CppDLL.h)：

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#pragma once using namespace System; namespace CppDLL { public ref class MyClass { public: int Multiply(int x, int y) { return x * y; } }; }

WPF (MainWindow.xaml)：

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<Window x:Class="CSharpCaller.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525"> <Grid> <Button Content="Click Me" Height="30" HorizontalAlignment="Left" Margin="20,20,0,0" Name="btn" VerticalAlignment="Top" Width="100" Click="btn_Click" /> <TextBlock Height="30" HorizontalAlignment="Left" Margin="20,70,0,0" Name="tbk" Text="Show up here" VerticalAlignment="Top" Width="100" /> </Grid> </Window>

C# (MainWindow.xaml.cs)：

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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; namespace CSharpCaller { /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private void btn_Click(object sender, RoutedEventArgs e) { CppDLL.MyClass test = new CppDLL.MyClass(); tbk.Text = test.Multiply(2, 4).ToString(); } } }

結果：

說明：
使用C# WPF呼叫C++函式庫進行乘法運算的簡單範例，
建立Visual C++ CLR Class Library專案，編譯DLL函式庫，
建立Visual C# WPF Application專案，加入References的DLL檔案，
編譯後即可執行。