Как нарисовать этот конус в Dev C++ ?

#include <windows.h>
 
//-----------------------------------------------------------------------------
void DrawCone(HWND handle, HDC hdc)
{
   RECT rect;
   LONG width;
   GetClientRect(handle, &rect);
 
   width = rect.right - rect.left;
 
   MoveToEx(hdc, width / 2, rect.top, NULL);
 
   LineTo(hdc, width / 2, rect.bottom - (width / 4));
   LineTo(hdc, rect.right, rect.bottom - (width / 4));
   LineTo(hdc, width / 2, rect.top);
   LineTo(hdc, rect.left, rect.bottom - (width / 4));
 
   Arc(hdc, rect.left, rect.bottom - (width / 2),
       rect.right, rect.bottom, 0, 0, 0, 0);
}
//-----------------------------------------------------------------------------
LRESULT CALLBACK WindowProcedure(HWND handle,
                                 UINT message,
                                 WPARAM wParam,
                                 LPARAM lParam)
{
   HDC hdc;
   PAINTSTRUCT ps;
 
   switch (message)
   {
      case WM_PAINT:
         hdc = BeginPaint(handle, &ps);
 
         DrawCone(handle, hdc);
 
         ValidateRect(handle, NULL);
         EndPaint(handle, &ps);
         break;
 
      case WM_DESTROY:
         PostQuitMessage(0);
         break;
 
      default:
         return DefWindowProc(handle, message, wParam, lParam);
   }
   return 0;
}
//-----------------------------------------------------------------------------
 
int WINAPI WinMain(HINSTANCE hThisInstance,
                   HINSTANCE hPrevInstance,
                   LPSTR lpszArgument,
                   int nFunsterStil)
{
   HWND handle;
   MSG messages;
   WNDCLASSEX windowClass;
   const char* szClassName = "Win-App";
 
   windowClass.hInstance = hThisInstance;
   windowClass.lpszClassName = szClassName;
   windowClass.lpfnWndProc = WindowProcedure;
   windowClass.style = CS_HREDRAW | CS_VREDRAW;
   windowClass.cbSize = sizeof(WNDCLASSEX);
   windowClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
   windowClass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
   windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);
   windowClass.lpszMenuName = NULL;
   windowClass.cbClsExtra = 0;
   windowClass.cbWndExtra = 0;
   windowClass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
 
   if (!RegisterClassEx(&windowClass))
   {
      return 0;
   }
 
   handle = CreateWindow(szClassName, "cone", WS_OVERLAPPEDWINDOW,
                         CW_USEDEFAULT, CW_USEDEFAULT, 300, 300,
                         NULL, NULL, hThisInstance, NULL);
 
   ShowWindow(handle, nFunsterStil);
 
   UpdateWindow(handle);
 
   while (GetMessage(&messages, NULL, 0, 0))
   {
      TranslateMessage(&messages);
      DispatchMessage(&messages);
   }
 
   return messages.wParam;
}