>From: Brian Smith <[EMAIL PROTECTED]>
>Date: Tue, 8 May 2001 01:00:46 -0400
>
>I get the following error from the Emulator, right when my app starts, I
>think when it tries to assign a value to the data field of a gadget:
>"{programName} just read from memory location 0x01C70C68,
>causing a bus error."
>
>..........
>
At a minimum, you need to add some basic error checking to your
code, as follows:
void MainFormsDrawItems(FormPtr pForm) {
if (pForm == NULL) return;
RectangleType rect;
UInt16 nGadgetID = 1061; // Hardcoding of ID's is poor style!
UInt16 nGadgetIndex;
UInt8 *pItemNum;
MemHandle hItemData = NULL;
nGadgetIndex = FrmGetObjectIndex(pForm, nGadgetID);
if (nGadgetIndex != NULL)
hItemData = FrmGetGadgetData(pForm, nGadgetIndex);
///if (hItemData) {
if (hItemData == NULL) return;
pItemNum = MemHandleLock(hItemData);
Roger Stringer
Marietta Systems, Inc.
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