When you create a new “Windows Form App” on Visual Studio, AutoScaleMode will attract attention of you in the mids of automatic codes (under the “Form1.Designer.cs”).

this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

This property, which is an enum member of the System.Windows.Forms library, determines behavior of form size in different display resolutions.

It has three forms of behavior:

• Dpi : Resizing according to display resolution.
• Font : Scaling according to font size.
• None : This is the default value. It disables the auto scaling.