windows编程初步

#include <windows.h>

 

const char g_szClassName[] = "myWindowClass";

 

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)

{

    switch(msg)

    {

        case WM_LBUTTONDOWN:

        {

            printf("you have clicked left_button once!\n");

            //answer：

            MessageBox(hwnd, TEXT("你点击了左键一下！"), TEXT("通知"), MB_OK | MB_ICONINFORMATION);

 

            char szFileName[MAX_PATH];

            //GetModuleHandle()的说明指出传给它一个NULL会返回一个创建发出调用进程的文件句柄

            HINSTANCE hInstance = GetModuleHandle(NULL);

            //消息处理函数

            GetModuleFileName(hInstance, szFileName, MAX_PATH);

            MessageBox(hwnd, szFileName, "This program is:", MB_OK | MB_ICONINFORMATION);

        }

        break;

 

        case WM_RBUTTONDOWN:

        {

            printf("you have clicked right_button once!\n");

            //answer：

            MessageBox(hwnd, TEXT("你点击了右键一下！"), TEXT("通知"), MB_OK | MB_ICONINFORMATION);

 

            char szFileName[MAX_PATH];

            //GetModuleHandle()的说明指出传给它一个NULL会返回一个创建发出调用进程的文件句柄

            HINSTANCE hInstance = GetModuleHandle(NULL);

            //消息处理函数

            GetModuleFileName(hInstance, szFileName, MAX_PATH);

            MessageBox(hwnd, szFileName, "This program is:", MB_OK | MB_ICONINFORMATION);

        }

        break;

 

        case WM_MBUTTONDOWN:

        {

            printf("you have clicked middle_button once!\n");

            //answer：

            MessageBox(hwnd, TEXT("你点击了中键一下！"), TEXT("通知"), MB_OK | MB_ICONINFORMATION);

 

            char szFileName[MAX_PATH];

            //GetModuleHandle()的说明指出传给它一个NULL会返回一个创建发出调用进程的文件句柄

            HINSTANCE hInstance = GetModuleHandle(NULL);

            //消息处理函数

            GetModuleFileName(hInstance, szFileName, MAX_PATH);

            MessageBox(hwnd, szFileName, "This program is:", MB_OK | MB_ICONINFORMATION);

        }

        break;

 

        case WM_CLOSE:

        {

            DestroyWindow(hwnd);

            printf("windows closed!\n");

        }

        break;

        case WM_DESTROY:

        {

            PostQuitMessage(0);

            printf("windows destroied!\n");

        }

        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;

}