#include <windows.h>

void main() {
     HWND console_handle = GetConsoleWindow();
     HDC device_context = GetDC(console_handle);

     HPEN pen =CreatePen(PS_SOLID,5,RGB(255,0,0));
     SelectObject(device_context,pen);
     Ellipse(device_context, 10, 10, 100, 100);
     ReleaseDC(console_handle, device_context);
}