cairoUserFontFaceSetRenderGlyphFunc: cairoUserFontFaceSetRenderGlyphFunc
In RGtk2: R Bindings for Gtk 2.8.0 and Above

Description Usage Arguments Details Author(s)

Sets the glyph rendering function of a user-font. See cairo_user_scaled_font_render_glyph_func_t for details of how the callback works.

1	cairoUserFontFaceSetRenderGlyphFunc(font.face, render.glyph.func)

`font.face`	[`CairoFontFace`] A user font face
`render.glyph.func`	[cairo_user_scaled_font_render_glyph_func_t] The render_glyph callback, or `NULL`

The font-face should not be immutable or a CAIRO_STATUS_USER_FONT_IMMUTABLE error will occur. A user font-face is immutable as soon as a scaled-font is created from it.

The render_glyph callback is the only mandatory callback of a user-font. If the callback is NULL and a glyph is tried to be rendered using font.face, a CAIRO_STATUS_USER_FONT_ERROR will occur. Since 1.8

Derived by RGtkGen from GTK+ documentation

RGtk2 documentation built on Oct. 14, 2021, 5:08 p.m.