Screen Text size in .NET

Question

Is there a way to know if the text size is at 125% from .NET/C#?

The setting comes from Control Panel\Appearance and Personalization\Display ...

Do you want to know text size or DPI? (http://blogs.msdn.com/oldnewthing/archive/2004/07/14/182971.aspx) If you do need to know text size, do you just need to know if it's 125%, or what the actual size is? — ICR, May 17 '10 at 13:14

score 3 · Accepted Answer · edited May 23 '17 at 11:48

3

I haven´t tried this my self.

This registry key in windows pre Windows 7:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\FontDPI:LogPixels

And this one in Windows 7:
HKEY_CURRENT_USER\Control Panel\Desktop:LogPixels

All according to this thread in MSDN Forum

edited May 23 '17 at 11:48

Community

answered May 17 '10 at 12:57

Jens Granlund

I was abl to get the correct value using HKEY_CURRENT_USER\Control Panel\Desktop\LogPixels. The value is 96 when using 100% and 120 when using 125%. Thanks! – BeardinaSuit May 23 '10 at 14:46

score 0 · Answer 2 · answered May 17 '10 at 13:02

I'm not sure but maybe you can just get the Dpi settings and check if they're 96 or not:

using(Graphics g = this.CreateGraphics())
{
    MessageBox.Show(g.DpiX.ToString() + Environment.NewLine + g.DpiY.ToString());
}

You might have to call SetProcessDPIAware first though.

2 Answers2