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Mac Forum / Programming / CodeWarrior / May 2004Where Are The Opaque Data Accessor Functions in Carbon
Where are they? For example, I am trying to access the elements of GrafPtr, but they are now Opaque in Carbon. I can't find any accessor functions for opaque data types in Carbon.  SignatureVincent > Where are they? For example, I am trying to access the elements of > GrafPtr, but they are now Opaque in Carbon. I can't find any accessor > functions for opaque data types in Carbon. GrafPtr is now behind the iron curtain. In Carbon, you keep a WindowRef and use accessor api's. Most of the fields from an old GrafPort now have api's. Look in Quickdraw.h for the struct GrafPort. The comment for each field lists the Carbon accessor api you should use. > > Where are they? For example, I am trying to access the elements of > > GrafPtr, but they are now Opaque in Carbon. I can't find any accessor [quoted text clipped - 6 lines] > Look in Quickdraw.h for the struct GrafPort. The comment for each > field lists the Carbon accessor api you should use. If you are writing a Carbon application, those accessors are defined in CarbonLib. If you are writing a Classic application, those accessors are defined in CarbonAccessors.o, which you add to your project. > Where are they? For example, I am trying to access the elements of > GrafPtr, but they are now Opaque in Carbon. Didn't you look for them in the reference documentation? They are called GetPortXXX and documented in <http://developer.apple.com/documentation/Carbon/Reference/QuickDraw_Ref/qdref_ma in/function_group_54.html>. > I can't find any accessor > functions for opaque data types in Carbon. They are rather easy to find in the reference documentation as well. Just start browsing the whole documentation at <http://developer.apple.com/documentation/Carbon/Carbon.html> or the reference documentation only at <http://developer.apple.com/referencelibrary/API_Fundamentals/Carbon-api-date.html>. Thorsten |
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