win32程序编译通过但是显示不出来

Question

编译通过但是显示不出来
多字节字符集

#define _CRT_SECURE_NO_WARNINGS
#include<Windows.h>
#include<stdio.h>
#include<time.h>
#include"resource.h"


#define edit_hour 8101
#define edit_min 8102
#define edit_sec 8103
#define static_currenttime 8201
#define button_ok 8301
#define button_about 8302

#define WS_CANTSIZE (WS_OVERLAPPED     | \
                             WS_CAPTION        | \
                             WS_SYSMENU     | \
                             WS_MINIMIZEBOX)

#define voidstr ""

LRESULT CALLBACK WndExample(
    HWND hwnd,
    UINT message,
    WPARAM wparam,
    LPARAM lparam);


int WINAPI WinMain(
    _In_ HINSTANCE hinstance,
    _In_opt_ HINSTANCE hpervinstance,
    _In_ LPSTR lpcmdline,
    _In_ int cmdshow)
{
    WNDCLASS wndclass;
    HWND hwnd;//主窗口句柄
    MSG msg;
    
    char lpszclassname[] = "WINDOW";
    wndclass.style = CS_HREDRAW | CS_VREDRAW;
    wndclass.lpfnWndProc = WndExample;
    wndclass.cbClsExtra = NULL;
    wndclass.cbWndExtra = NULL;
    wndclass.hInstance = hinstance;
    wndclass.hIcon = LoadIcon(hinstance, MAKEINTRESOURCE(IDI_ICON1));
    wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
    wndclass.hbrBackground = CreateSolidBrush(RGB(230, 230, 250));
    wndclass.lpszMenuName = 0;
    wndclass.lpszClassName = lpszclassname;
    if (!RegisterClass(&wndclass))
    {
        int err = GetLastError();
        char errc[10] = { 0 };
        _itoa(err, errc, 10);
        MessageBox(NULL, errc, "注册窗口类失败", 0);
        return 0;
    }
    hwnd = CreateWindow(lpszclassname, lpszclassname, WS_VISIBLE|WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 330, 400, NULL, NULL, hinstance, NULL);
    ShowWindow(hwnd, SW_SHOWNORMAL);
    UpdateWindow(hwnd);

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


LRESULT CALLBACK WndExample(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
{

    switch (message)
    {
    case WM_CREATE: {

        
    }
    
    default:
        return DefWindowProc(hwnd, message, wparam, lparam);
    }
  return 0;
}

Answer 1

WM_CREATE处理完，函数返回前要调用DefWindowProc函数