Change fontsize with resolution

well its simple, suppose your naive resolution is 1080x1920 and your font size is 32pt, you bump it down to 720x1280.

720p is 2/3 of 1080p. so 0.666*32 = 22. just convert that logic to code and your done. so its basically the formula is (currentResoltuion/nativeResolution) * Nativefont = NewFontSize

update your font size only after the resolution is been changed.something like this

 void ChangeRes(int width,int height)
 {
 //Change Resolution here
 
 
 //Update Font sizes and other GUI element sizes here
 
 
 }

that way you wont be constantly recalculating your fonts. it will do so whenever you call that function.

Hop it helps