将.exe c ++文件（创建一个窗口）转换为.dll c ++文件，并使用.dll文件在C＃ [英] Converting a .exe c++ file (that creates a window) into a .dll c++ file and use that .dll file in C#

问题描述

我在C ++中有一个.exe程序只显示一个窗口。如何将.exe程序转换为.dll文件，然后如何访问该.dll文件与C＃，所以我可以显示该窗口。这是我的C ++代码：

I have a .exe program in C++ that only shows a window. How can I convert that .exe program into a .dll file and then how can I access that .dll file with C# so I can show that window. Here is my C++ code:

#include <windows.h>

const char g_szClassName[] = "myWindowClass";

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch(msg)
    {
        case WM_CLOSE:
            DestroyWindow(hwnd);
        break;
        case WM_DESTROY:
            PostQuitMessage(0);
        break;
        default:
            return DefWindowProc(hwnd, msg, wParam, lParam);
    }
    return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{
    WNDCLASSEX wc;
    HWND hwnd;
    MSG Msg;

    wc.cbSize        = sizeof(WNDCLASSEX);
    wc.style         = 0;
    wc.lpfnWndProc   = WndProc;
    wc.cbClsExtra    = 0;
    wc.cbWndExtra    = 0;
    wc.hInstance     = hInstance;
    wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
    wc.lpszMenuName  = NULL;
    wc.lpszClassName = g_szClassName;
    wc.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);

    if(!RegisterClassEx(&wc))
    {
        MessageBox(NULL, "Window Registration Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    hwnd = CreateWindowEx(
        WS_EX_CLIENTEDGE,
        g_szClassName,
        "The title of my window",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT, 240, 120,
        NULL, NULL, hInstance, NULL);

    if(hwnd == NULL)
    {
        MessageBox(NULL, "Window Creation Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);

    while(GetMessage(&Msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }
    return Msg.wParam;
}

推荐答案

>

Two steps:

1. 如果你有一个c ++程序，你可以通过跟随这个$ b来构建一个 dll $ b 帖子，假设您使用visual studio。



2. 为了在<$ c $中使用 c ++ dll c> c＃您需要阅读的程序：

1. If you have a c++ program you can build it as a dll by following this post, assuming you use visual studio.

2. In order to use a c++ dll within a c# program you need to read:

• 创建C ++ .dll供Excel& C＃（32 / 64bit Window）


• 在C＃应用程序中使用C ++类DLL


• 在C＃项目中使用C ++ DLL

• using C++ DLL in C# windows application:Getting error "Entry point not found"
• Creating C++ .dll for use by Excel & C# (32/64bit Window)
• Using C++ Class DLL in C# Application
• Using C++ DLL in C# project

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