Below is some simple code I've written to display data in a textTableItem.
This is just a "quick and dirty" so that I could display some data.
However, I'm a bit worried about the handles I'm creating...
If there is a new record being added or deleted from the database, this
function will be called when the table is redrawn. Shouldn't I be freeing
these handles? If so, does anyone have any suggestions, considering this is
a dynamic table.
static Err LoadDataFoo(VoidPtr table, Word row, Word column, Boolean
editable, VoidHand *dataH, WordPtr dataOffset, WordPtr dataSize, FieldPtr
fld)
{
Char a[FOO_LENGTH];
tblFoo theFoo;
Handle txtH;
UInt index = tblRecord;
// Query Record
VoidHand record = DmQueryRecord(gFooDB, index);
// Lock the Record and unpack it
tblPackedFooPtr p = MemHandleLock(record);
UnpackFoo(&theFoo, p);
// Unlock the record
MemHandleUnlock(record);
// Copy double to a string
doubleToStr(a, theFoo.number, 1, FOO_LENGTH - 2);
txtH = MemHandleNew(StrLen(a) + 1);
StrCopy(MemHandleLock(txtH), a);
*dataH = txtH;
*dataOffset = 0;
*dataSize = MemHandleSize(*dataH);
return(0);
}
--
Tim Astle
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