windows程序设计之简单界面入门

突然自己想完整地写一款mm，除了网络通信、文件操作之类的功能类代码外，还要搞一个界面的东西。想了想，为了快速看到成果就学学界面编程吧，也方便看别人的带界面的代码。于是乎，决定windows编程先从界面开始写。
新建一个空的win32工程，只有以下代码：

#include "stdafx.h"
int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
    // TODO: Place code here.

    return 0;
}

然后贴上一个示例代码，几乎是同一的格式，vs自动生成的页差不多这样子。

// WIN32APP.cpp : Defines the entry point for the application.
//

#include "stdafx.h"

LRESULT CALLBACK MainWndProc(HWND,UINT,WPARAM,LPARAM);

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
    // TODO: Place code here.
    char szClassName[]="MainWClass";
    WNDCLASSEX wndclass;

    wndclass.cbSize=sizeof(wndclass);
    wndclass.style = CS_HREDRAW|CS_VREDRAW;
    wndclass.lpfnWndProc = MainWndProc;
    wndclass.cbClsExtra = 0;
    wndclass.cbWndExtra = 0;
    wndclass.hInstance = hInstance;
    wndclass.hIcon = LoadIcon(NULL,IDI_APPLICATION);
    wndclass.hCursor = LoadCursor(NULL,IDC_ARROW);
    wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
    wndclass.lpszMenuName = NULL;
    wndclass.lpszClassName = szClassName;
    wndclass.hIconSm = NULL;

    RegisterClassEx(&wndclass);

    HWND hwnd = CreateWindowEx(
        0,
        szClassName,
        "My first Window!",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        NULL,
        NULL,
        hInstance,
        NULL);

    if(hwnd == NULL)
    {
        MessageBox(NULL,"create windows error !","error",MB_OK);
        return -1;
    }

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

    MSG msg;
    while (GetMessage(&msg, NULL, 0, 0))
    {

        TranslateMessage(&msg);
        DispatchMessage(&msg);

    }

    return (int) msg.wParam;
}

LRESULT CALLBACK MainWndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
{
    char szText[]="most simple window";
    switch(message)
    {
    case WM_PAINT:
        {
            HDC hdc;
            PAINTSTRUCT ps;
            hdc = BeginPaint(hwnd,&ps);
            TextOut(hdc,10,10,szText,strlen(szText));
            EndPaint(hwnd,&ps);
            return 0;
        }
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    }
    return DefWindowProc(hwnd,message,wParam,lParam);
}

这里记录一下如何添加图标资源和菜单：

其实很简单，代码也很容易懂，菜鸟只是记录一下。
再添加一个图标玩玩

继续前进！哈哈！