I try to get the font ID by GetFNum() and FMGetFontFamilyFromName(), but when I call the GetFNum() and no matter what name I pass to it, it always return 0 and the FMGetFontFamilyFromName return -1(Error),can anyone give me some help. I use the xcode 2.1 to debug My project, It always show "Not enough frams in debug stack", I dont know why. The call stack just show 7 functions called by me,The code just jump between 2 dylibs, What could I do? Please help !~!!