Re: [ft] face->ascender always has the same height

[Lawrence D'Oliveiro]

On Mon, 28 Nov 2016 13:09:24 +0000, Olumide wrote:

> #define FONT_HEIGHT 18
> 
> FT_Size_RequestRec req = { FT_SIZE_REQUEST_TYPE_BBOX , 0 ,
> FONT_HEIGHT * 64 , 0 , 0 };
> CHECK_STATUS( error , "Request size rec" )
> 
> FT_Request_Size( face , &req );
> CHECK_STATUS( error , "Request size" )

When I try something equivalent in Python:

    import sys
    import freetype2 as ft
    from freetype2 import \
        FT

    face = ft.get_default_lib().find_face("sans-serif")
    sys.stdout.write("got face %s\n" % face.family_name)
    face.request_size \
      (
        reqtype = FT.SIZE_REQUEST_TYPE_BBOX,
        width = 0,
        height = 18,
        horiResolution = 0,
        vertResolution = 0
      )
    sys.stdout.write("face.ascender = %.3g\n" % face.ascender)

I get

    freetype2.FTException: FreeType error 151 -- invalid ppem value

I would suggest that you are getting the same error, without noticing.