Hi,
At certain points our application crashes, like when a control is about to
show a hint, and then throws an exception 'External: EXC_BAD_ACCESS', and
breaks at line 1725 in carbonwinapi.inc: "if not CheckDC(DC,
'GetTextExtentPoint') then Exit;"
I traced the exact crash point to line 1582 in control.inc:
"Dispatch(TheMessage)".
The GetTextExtentPoint is called 6 times currently with the same string and
no problems, and the Dispatch is called twice after the 6th time with no
problems, but crashes at the 3rd call to Dispatch.
The TheMessage has the following parameters:
{MSG=66592, WPARAM=265482992, LPARAM=0, RESULT=0, WPARAMLO=62192,
WPARAMHI=4050, LPARAMLO=0, LPARAMHI=0, RESULTLO=0, RESULTHI=0}
I believe the WPARAM is the DC, but anybody know what MSG=66592 ($10420) is
all about? Or have any clue of what causes the crash?
Note: If I let another control show its hint first, it doesn't crash if the
control shows its hint - it only crash every time when it's the first
control to show its hint.
Thanks and best regards,
Normann
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