overlaid parts of text get transparent GDI+

Question

I run this code:

graphics.DrawString("( پنج)", new Font(IranNastaliq, 77), ...);

which results in:

As you can see, circled parts are overlaid and turned transparent. Why those parts get transparent and how should I prevent it?

Persse

Looks like a Font error to me. - You could try TextRenderer.DrawText(graphics, ...) – Sane

@Sane Overlays are caused by font but there are no transparencies in other apps. Also, TextRenderer solved the problem but rendered text needs antialiasing. I can't find how should I enable antialiasing for TextRenderer. – Persse

Antialiasing . This ought to be done by setting the properties of the Graphics object it takes. I have a hunch that graphics.DrawString get confused and creates a wrong GraphicsPath in the process. Is it just the holes or is the whole shape wrong? GraphicsPath.AddText would be another option which would let you test tw o WindingMOdes. - TextRenderer is recommended for everything except(!!) printing.. – Sane

@Sane I set properties of Graphics object like this post. However, TextRenderer still generate jagged texts. – Persse

Maybe setting the TextContrast lower would help? – Sane

@Sane I changed many properties of my Graphics object but TextRenderer doesn't care at all! It always render the same. – Persse