NATIVEWINDOW is used by IUP, so you are actually using it. You may have
some issues using its constructor, but you are using it.

To replace the native Win32 driver by the OpenGL driver is not recommended,
unless you need OpenGL support.

You may try changing the font. Maybe Courier is not performing as expected
at that small size. Text rendering in native Windows is usually good and
better than the other drivers.Don't know exactly what's going on in that
case.

Best,
Scuri


Em ter., 28 de dez. de 2021 às 14:14, Andrew Robinson <arobinso...@cox.net>
escreveu:

> I tried the other two drivers (NATIVEWINDOW and GL) and they don't work at
> all on Windows, so do you have any recommendations for a workaround or
> alternate?
>
> Thanks,
> Andrew
>
> On 2021-12-08 at 9:45 AM, Antonio Scuri <antonio.sc...@gmail.com> wrote:
>
>   Ok So you are actually using the Win32 based driver.
>
>   We use native functions to do the drawing. Text drawing is done
> by TextOut Win32 api function. Whe text orientation is used we simply
> use CreateFont with an angle parameter.
>
>   So there isn't much I can do.
>
> Best,
> Scuri
>
>
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