C# drawing text

Question

gfx.DrawString(
    thisTempLabel.LabelText,
    new Font("Arial", (float)thisTempLabel.fontSize),
    Brushes.Black,
    new PointF(thisTempLabel.x, thisTempLabel.y)
    );

This works fine, except I store my font size (thisTempLabel.fontSize) in pixels. I can't for the life of me work out how to convert them (probably impossible) or what to do to resolve this.

They come out sort of right, but not in the right position by a bit and a bit too big.

Precision is very important.

davidtbernal · Accepted Answer · 2011-03-03 17:37:55Z

2

I think the issue you're having might be that the constructor you're using expects the size to be in points:

public Font(FontFamily family, float emSize)

emSize
Type: System.Single
The em-size, in points, of the new font.

It looks like you can use a different overload that takes GraphicsUnit parameter, which you can set to GraphicsUnit.Pixel:

gfx.DrawString(
    thisTempLabel.LabelText,
    new Font("Arial", (float)thisTempLabel.fontSize, GraphicsUnit.Pixel),
    Brushes.Black,
    new PointF(thisTempLabel.x, thisTempLabel.y)
);

Note that you're setting the em size, which is, roughly, the height of the "M" character.

answered Mar 3, 2011 at 17:37

davidtbernal

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1 Comment

Tom Gullen Over a year ago

Thanks! How would I modify my code to use this? I find msdn documentation confusing :S

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