Re: "fixed" fontsize and dpi

"John Carson" <>
Tue, 1 Aug 2006 23:38:12 +1000
"DHarray" <> wrote in message


I'm using folling code snipet in my application to draw a simple text.
I'm using LOFGONT to change the fontsize (height) to 10 pixel.
All works fine.

To understand my problem, i have to say that the space, where the text
can be drawn is limited to only a few pixel. My app's height is 24
pixel. it's a value which cannot be changed. the text should *always*
has a height of 10 pixel.
if a user change for example his dpi settings or the default os
fontsize, the text in my app is drawn outside of the limited space.

Simple question now: How can i draw a text with a fixed fontsize
wether the dpi settings has been changed ?!

Please help!

// ---------- START ------------------------------



GetObject(hFont, sizeof(LOGFONT), &lf);

lf.lfHeight = -MulDiv(10, GetDeviceCaps(ps.hdc, LOGPIXELSY), 72);

This line creates a 10 point font, not a 10 pixel font. Change it to

lf.lfHeight = -10;

Alternatively, don't have a 24 pixel application. Let the application's size
vary with the value of GetDeviceCaps(ps.hdc, LOGPIXELSY).

John Carson

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