创建win32窗口

#include <windows.h>
LRESULT CALLBACK WinProc(HWND,UINT,WPARAM,LPARAM);
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR szCmdLine,int iCmdShow)
{
    TCHAR szname[]=TEXT("classname");
    HWND hwnd;
    MSG msg;
    ZeroMemory(&msg,sizeof(msg));
    WNDCLASS wndclass;
    wndclass.style=CS_HREDRAW | CS_VREDRAW;
    wndclass.lpfnWndProc=WinProc;
    wndclass.cbClsExtra=0;
    wndclass.cbWndExtra=0;
    wndclass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
    wndclass.hCursor=LoadCursor(NULL,IDC_ARROW);
    wndclass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
    wndclass.hInstance=hInstance;
    wndclass.lpszClassName=szname;
    wndclass.lpszMenuName=NULL;
    RegisterClass(&wndclass);
    hwnd=CreateWindow(szname,TEXT("windowsnametest"),WS_OVERLAPPEDWINDOW ,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL,hInstance,NULL);
    if(hwnd)
        ShowWindow(hwnd,SW_SHOW);
    else
    {
        MessageBox(NULL,TEXT("创建窗口失败！"),TEXT("提示"),MB_OK);
        UnregisterClass(szname,hInstance);
        return 1;
    }
    UpdateWindow(hwnd);
    
    while(GetMessage(&msg,hwnd,0,0)>0)
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    UnregisterClass(szname,hInstance);
    return msg.wParam;
}
LRESULT CALLBACK WinProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
{
    switch(message)
    {
    case WM_CLOSE:
        DestroyWindow(hwnd);
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hwnd,message,wParam,lParam);
    }
    return 0;
}

GetStockObject在库#pragma comment(lib, "gdi32.lib") 中。