Question

The FreeType library defines quite a few basic data types, but I’m not quite sure how to use them. I’m trying to use the FT_Get_Glyph_Name method, which takes this form:

FT_Get_Glyph_Name(FT_Face face, FT_UInt glyph_index, FT_Pointer buffer, FT_UInt buffer_max );

So I have this code:

FT_Face = face;
FT_Pointer = name;
FT_Get_Glyph_Name(face, 0, name, 45);

This works fine, but I’m not sure how to actually get a string representation of the name (to use with printf for example). How do I get from FT_Pointer to a string?

Answer 1

From the documentation link :

The glyph name is truncated to fit within the buffer if it is too
long. The returned string is always zero-terminated.

FT_Pointer is a typedef on void*.

A simple cast is sufficient :

char name[100];
FT_Get_Glyph_Name(face, 0, (FT_Pointer) name, 100);
printf("Name : '%s'\n", name);

You can also use FT_Pointer type variables and cast them to (char *).