Kristian Austad wrote:
Problem: I want to change the code so that I can access the data in this
file using FileOpen, FileSeek and FileRead insted of simply getting the
handle using DmQueryRecord. Reason: I want more control over the number of
bytes read and where in the file they are read from. DmQueryRecord isn't
flexible enough for my needs. Or are there undiscovered secrets in the
Database Manager that I haven't discovered?
DmQueryRecord just gives you a handle to the data. You CAN have fair
control over what you do with that handle. For instance, you can do
something like the following...
MemHandle recH=DmQueryRecord(db,record);
UInt8 *recP=MemHandleLock(recH);
UInt16 offset=0; (or whatever you want)
UInt16 size=MemHandleSize(recH); (or whatever you want)
MemMove((UInt8*) <wherever you want the date to go>,recP+offset,size);
MemHandleUnlock(recH);
This may still not be right for your needs,... but FYI. Bob.
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