The way I see it, this is impossible. Another option is that I am just
stupid. I'll give you 2:1 odds on impossible, though. Well, maybe 1:1.
Here goes:
In my hack for the SysProcessSoftkeyStroke, the function recieves two
parameters: PointType *startPtP and PointType *endPtP. Immediately upon
entering the function, have the following lines:
{
PointType startPoint;
PointType endPoint;
if (startPtP->x == endPtP->x)
SndPlaySystemSound(sndAlarm);
startPoint = (*startPtP);
endPoint = (*endPtP);
if (startPtP->x == endPtP->x)
SndPlaySystemSound(sndError);
if (startPoint.x == endPoint.x)
SndPlaySystemSound(sndError);
}
The result is no alarm, then 2 beeps. That means that startPtP.x does not
equal endPtP.x until after I assign the variables startPoint and endPoint to
the values of *startPtP and *endPtP. It gets weirder:
The following code does work:
{
SWord startX; // for some reason, I need to save the values of startPtP
and
SWord startY; // endPtP and pass the address to my own PointType
variables
SWord endX; // if I want to call the original trap. I dont know why,
but
SWord endY; // it works.
if (startPtP->x == endPtP->x)
SndPlaySystemSound(sndAlarm);
startX = startPtP->x;
startY = startPtP->y;
endX = endPtP->x;
endY = endPtP->y;
if (startPtP->x == endPtP->x)
SndPlaySystemSound(sndError);
if (startX == endX)
SndPlaySystemSound(sndError);
}
Here I get no sounds whatsoever. Apparently, accessing the variables by
reference as opposed to by value is ok, but the reverse causes them to be
reinitialized to zero or something. I dunno.
First one to figure this out gets a big prize!
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