# Text user defined functions Reference

Below is a complete list of the user defined functions available in AutoIt. Click on a user defined function name for a detailed description.

When using them you need to add a #include <GDIPlus.au3>.

User Defined Function | Description
--- | ---
_GDIPlus_GraphicsDrawString | Draw a string
_GDIPlus_GraphicsDrawStringEx | Draw a string
_GDIPlus_GraphicsMeasureCharacterRanges | Gets a set of region objects each of which bounds a range of character positions within a string
_GDIPlus_GraphicsMeasureString | Measures the size of a string