PureBasic Forums - English

Posted: **Thu Sep 19, 2002 3:55 pm**

Restored from previous forum. Originally posted by horst.

What is the proper way to calculate yHeight for the RichEdit Font?
I have:
a = SelectedFontSize()
b = GetDeviceCaps_(hDC,#LOGPIXELSY) ; after GetDC_(RichHandle)

Horst

Posted: **Thu Sep 19, 2002 4:47 pm**

Restored from previous forum. Originally posted by El_Choni.

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a = cf\yHeight; selected font size in logical units (?)
b = GetDeviceCaps_(GetDC_(WindowID()),#LOGPIXELSY); system font metrics
result = (a*b)/1440

But I don't know exactly what you're looking for. If you're using the RichEdit library,

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cf\yHeight

sizes are divided by 20. That is,

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RichEditFontSize(10)

sets

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cf\yHeight

to 200.

Hope this helps, bye,

El_Choni

Posted: **Fri Sep 20, 2002 12:43 pm**

Restored from previous forum. Originally posted by horst.

> cf\yHeight sizes are divided by 20. ...

That means:

cf\yHeight = SelectedFontSize() * 20

I did not find that in the API docs. I actually didn't
expect it to be that simple, because I was confused by
that GetDeviceCaps_(hDC,#LOGPIXELSY) stuff (which obviously
is not necessary).

Factor 20 seems to work with all resolutions incl. "large fonts".

BTW: I do not use the library, just want to change font/size.

Thanks!

Horst