c_gtk_paper_size_new_custom

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
GtkPaperSize* function(const(char)* name, const(char)* displayName, double width, double height, GtkUnit unit) c_gtk_paper_size_new_custom;

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