C编程HWND

Question

当我编译我的代码时，应该打开一个窗口，但它没有。我已经创建了一个类、HWND和应用程序处理程序；仍然一无所获。

我是个新手，很抱歉这个问题。

应用程序运行正常，没有错误，但窗口似乎没有出现。

#include<stdio.h>
#include<stdlib.h>
#include<windows.h>


LRESULT CALLBACK myCallBack(HWND regularWnd, UINT message, WPARAM wparam, LPARAM lparam){
    switch(message){
    case 0x0201:
    printf("left Click");
    MessageBox(regularWnd, "Left Click", "event handler", MB_OK);
    break;
    case WM_CLOSE: 
    DestroyWindow(regularWnd);
    break;
    case WM_DESTROY:
    PostQuitMessage(0);
    break;
    default:
    DefWindowProc(regularWnd, message, wparam, lparam);
    break;
    }
    return 0;
}

int WINAPI WinMain(HINSTANCE newHInstance, HINSTANCE prevHINSTANCE, LPSTR lpCmdLine, int cmdShow){

    WNDCLASSEX regularWndClass;

    regularWndClass.cbSize = sizeof(WNDCLASSEX);
    regularWndClass.cbWndExtra = 0;
    regularWndClass.cbClsExtra = 0;
    regularWndClass.style = 0;
    regularWndClass.lpszClassName = "regularWindowClass";
    regularWndClass.lpszMenuName = NULL;
    regularWndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW+2);
    regularWndClass.lpfnWndProc = myCallBack;
    regularWndClass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
    regularWndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    regularWndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
    regularWndClass.hInstance = newHInstance;

    if(!RegisterClassEx(&regularWndClass) < 0){
        perror("Error Wnd class: ");
        exit(0);
    }

    HWND regularWnd;

    regularWnd = CreateWindowEx(WS_EX_CLIENTEDGE, "regularWindowClass", "The title of my window", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 300, 300, NULL, NULL, newHInstance, NULL);

    if(regularWnd < 0){
        perror("window error : ");
        exit(0);
    }

    ShowWindow(regularWnd, cmdShow);
    UpdateWindow(regularWnd);

    MSG message;
    while(GetMessage(&message, NULL, 0, 0) > 0){
        TranslateMessage(&message);
        DispatchMessage(&message);
    }
    return message.wParam;
}