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Does CGContextSetFont() Work?

I'm drawing text with CoreGraphics. There is sample code that uses CGContextSelectFont() and this works fine. However you have to specify a font by name and there is no guarantee that this font exists. If the font doesn't exist CGContextSelectFont() fails silently (yet another new API that doesn't bother with errors) and your text doesn't get displayed. Therefore I'm trying to use CGContextSetFont() to set the application font.

The following code creates a valid CGFont (as least as far as CFShow knows) but no text comes out. The archives show this same question being asked two or three times and the only answer seems to be "use ATSUI". ATSUI is massive overkill for this particular case. Does anybody know how to use CGContextSetFont()?

Thanks for any help,
Nick Nallick

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// this works
CGContextSelectFont(context, "Helvetica", 12.0, kCGEncodingMacRoman);

// this doesn't work - there are no errors recorded but no text either
ATSUFontID fontID;
ATSUFONDtoFontID(kFontIDHelvetica, normal, &fontID);
CGFontRef font = CGFontCreateWithPlatformFont(&fontID);
CFShow(font); // console displays <CGFont 0x1a6dc60>
CGContextSetFont(context, font);
CGContextSetFontSize(context, 12.0);
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