#define WIN32_LEAN_AND_MEAN   
#include<windows.h>
#include<windowsx.h>
#include<stdio.h>
#include<math.h>

#define WINDOW_CLASS_NAME12 "WINCLASS1"

LRESULT CALLBACK WindowProc(HWND hwnd,UINT msg,WPARAM wparam,LPARAM lparam)
{
   PAINTSTRUCT ps;
   HDC hdc;

   switch(msg)
   {
   case WM_CREATE:
    {
     return (0);
    }break;
   case WM_PAINT:
    {
     hdc = BeginPaint(hwnd,&ps);
      EndPaint(hwnd,&ps);
      return (0);
    }break;
   case WM_DESTROY:
    {
     PostQuitMessage(0);
     return (0);
    }break;
   default: break;
   }
   return (DefWindowProc(hwnd,msg,wparam,lparam));
}

int WINAPI WinMain(    HINSTANCE hinstance,
       HINSTANCE hprevinstance,
       LPSTR lpcmdline,
       int ncmdshow)
{
   WNDCLASSEX windclass;
   HWND hwnd;
   MSG msg;

   windclass.cbSize = sizeof(WNDCLASSEX);
   windclass.style = CS_DBLCLKS |CS_OWNDC|CS_HREDRAW|CS_VREDRAW;
   windclass.lpfnWndProc = WindowProc;
   windclass.cbClsExtra = 0;
   windclass.cbWndExtra = 0;
   windclass.hInstance = hinstance;
   windclass.hCursor    = LoadCursor(NULL,IDC_ARROW);
   windclass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
   windclass.lpszMenuName = NULL;
   windclass.lpszClassName = WINDOW_CLASS_NAME12;
   windclass.hIcon = LoadIcon(NULL,IDI_APPLICATION);
windclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

   if(!RegisterClassEx(&windclass))
   MessageBox(NULL,"Problem1","Error1",MB_OK);
   return(0);

if (!(hwnd = CreateWindowEx(NULL,                  
                    WINDOW_CLASS_NAME12,      
            "Your Basic Window++",   
            WS_BORDER | WS_VISIBLE,
             0,0,       
            400,400,    
            NULL,       
            NULL,       
            hinstance,
            NULL)))   
    MessageBox(NULL,"Problem","Error",MB_OK);
   return(0);

   while(TRUE)
   {
    if(PeekMessage(&msg,hwnd,0,0,PM_REMOVE))
    {
     if(msg.message == WM_QUIT)
      break;
     TranslateMessage(&msg);
     DispatchMessage(&msg);
      
    }
   }

   return(msg.wParam);
}