逆向学习-windows编程第一个窗口程序

typedef struct tagWNDCLASSW {
  UINT      style;
  WNDPROC   lpfnWndProc;
  int       cbClsExtra;
  int       cbWndExtra;
  HINSTANCE hInstance;
  HICON     hIcon;
  HCURSOR   hCursor;
  HBRUSH    hbrBackground;
  LPCWSTR   lpszMenuName;
  LPCWSTR   lpszClassName;
} WNDCLASSW, *PWNDCLASSW, *NPWNDCLASSW, *LPWNDCLASSW;

核心的是WNDPROC 和 LPCWSTP lpszClassName 这两个必须有值

#include<Windows.h>
#include<iostream>
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;
    default:
        break;
    }
    return DefWindowProcW(hwnd,uMsg,wParam,lParam);
}
int WINAPI WinMain(
    HINSTANCE hInstance,
    HINSTANCE hPreInstance,
    LPSTR lpCmdeLine,
    int nCmdShow
) 
{
    //1.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 hwindow = CreateWindowW(
        myClass.lpszClassName,
 
        L"51hook",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT,
        0,
        CW_USEDEFAULT,
        0,
        NULL,
        NULL,
        hInstance,
        0
    );
    //4.显示窗口
    ShowWindow(hwindow, SW_SHOWNORMAL);
​
    //5.获取消息
    MSG msg = { 0 };
    while (GetMessageW(&msg, 0,0,0)) {
        DispatchMessageW(&msg);//分发消息给消息处理函数
    }
​
    return 0;
}