--- Mitch <[EMAIL PROTECTED]> wrote:
> The interesting thing is that when I get into the AppStop
> routine and look at OurInfo (which is the pref structure),
> it has all the right stuff in it before the
> PrefSetAppPreferences call.
> Then, when I restart the app and do the PrefGetAppPreferences,
> it returns the right version number, but the prefs structure
> is all 0's.
> ...
from AppStop:
> OurInfoSize = PreferenceAndStateTypeSize;
> PrefSetAppPreferences(ourCreatorID, ourInfoID,
> ProgramInfo.OurVersionNum, &OurInfo, OurInfoSize, false);
> ...
from AppStart:
> if((i = PrefGetAppPreferences(ourCreatorID, ourInfoID,
> &OurInfo, &OurInfoSize, false)) == noPreferenceFound){
> OurInfo.Preferences.PlayingRightHanded = true;
> OurInfo.Preferences.DisplayStatsCount = false;
> OurInfo.Preferences.DefaultTees = 2;
> OurInfo.Preferences.DefaultNumberOfPlayers = 4;
> OurInfoSize = PreferenceAndStateTypeSize;
> PrefSetAppPreferences(ourCreatorID, ourInfoID,
> ProgramInfo.OurVersionNum,
> &OurInfo, OurInfoSize, false);
> }
You don't show the declaration of OurInfo. One thing that could cause
the problem you describe (a rather obscure possibility, but I didn't
happen to see anything else, so...) would be if that structure contains
stuff in front of the Preferences which happens to be zeroes. For
example:
typedef struct
{
UInt16 stuff[10];
UInt16 mostuff[20];
} OurStuffType;
typedef struct
{
Boolean PlayingRightHanded;
Boolean DisplayStatsCount;
UInt16 DefaultTees;
UInt16 DefaultNumberOfPlayers;
} OurPrefsType;
typedef struct
{
OurStuffType OurStuff;
OurPrefsType Preferences;
} OurInfoType;
OurInfoType OurInfo;
In this case, if OurInfoSize is sizeof(OurPrefsType) you would be
writing the first 6 bytes of OurInfo, but the data you want to write
doesn't start until 30 bytes into the structure, so you'll actually
write whatever the first 6 bytes happen to be.
A simpler way to write out prefs is to write an entire structure. For
example (if OurInfo actually only contains prefs info):
PrefSetAppPreferences(ourCreatorID, ourInfoID,
ProgramInfo.OurVersionNum, &OurInfo, sizeof(OurInfo), false);
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