屏幕文本大小，以.NET格式

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 ...

Answer 1

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

Here is some additional resources:
Creating a DPI-Aware Application
C# Scaling UserControl content to match users Dpi/Font Size
About DPI issue

Answer 2

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.