逆向学习-windows编程消息处理

#include<Windows.h>
#include<iostream>
int a = 1;
​
const UINT WM_USERMSG = WM_USER + 1;   //自定义消息事件
void print(LPCWSTR format, ...) {
    WCHAR wchar_buff[100]{ 0 };
    va_list arglist;
    va_start(arglist, format);
    wvsprintfW(wchar_buff, format, arglist);
    va_end(arglist);
    OutputDebugStringW(wchar_buff);
​
}
​
LRESULT CALLBACK WindowProc(   //消息处理函数
    _In_ HWND   hwnd,
    _In_ UINT   uMsg,
    _In_ WPARAM wParam,
    _In_ LPARAM lParam
) {
    switch (uMsg)
    {
    case WM_CREATE:
        MessageBoxW(hwnd, L"窗口创建了", L"提示", MB_OK);
        break;
    case WM_CLOSE:
        MessageBoxW(hwnd, L"窗口关闭了", L"提示", MB_OK);
        DestroyWindow(hwnd);
        PostQuitMessage(0);
        break;
    case WM_MOUSEMOVE:
        //print(L"鼠标移动了！/n,%d",a);
        //a++;
    {
        WORD X = LOWORD(lParam);
        WORD Y = HIWORD(lParam);
        print(L"鼠标移动了！X坐标%d,Y坐标%d", X, Y);
        break; 
    }
    case WM_LBUTTONDOWN:
        print(L"鼠标左键按下了/n");
        SendMessageW(hwnd, WM_USERMSG, 0, 0);
    case WM_USERMSG:
        print(L"自定义消息！/n");
        break;
    default:
        break;
    }
    return DefWindowProcW(hwnd, uMsg, wParam, lParam);
}
​
int WINAPI WinMain(
    _In_ HINSTANCE hInstance,      // handle to current instance
    _In_opt_ HINSTANCE hPrevInstance,  // handle to previous instance
    _In_ LPSTR lpCmdLine,          // command line
    _In_ int nCmdShow              // show state
)
{
    //创建一个窗口类
    WNDCLASSW myClass = { 0 };
    myClass.lpszClassName = L"51hook";
    myClass.lpfnWndProc = WindowProc;
    //2.注册窗口类
    RegisterClassW(&myClass);
    //3.创建窗口
    HWND hwnd = CreateWindowW(
        myClass.lpszClassName,
        L"51hook",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT,
        0,
        CW_USEDEFAULT,
        0,
        NULL,
        NULL,
        hInstance,
        0
    );
​
    //4.显示窗口
    ShowWindow(hwnd, SW_SHOWNORMAL);
    //5.获取消息
​
    MSG msg = { 0 };
    while (GetMessageW(&msg,0,0,0)){
        DispatchMessage(&msg);
    }
    return 0;
}