This is my first attemp to a "solo flight" at palm programming. I started
by writing a simple app that takes in a text in a text field and sets that
text as the value of a label.
This is what I got (some code has been snipped):
static Boolean MainFormHandleEvent(EventPtr eventP)
{
Boolean handled = false;
EventType newEvent;
FormPtr frmP;
CharPtr x;
switch (eventP->eType)
{
case frmOpenEvent:
(snip)
case ctlSelectEvent:
frmP = FrmGetActiveForm();
if (eventP->data.ctlEnter.controlID == MainOkButton)
(snip)
else if (eventP->data.ctlEnter.controlID == MainExecButton)
{
if (FrmValidatePtr(frmP)) {
/* the four lines below are the cause of the problems */
x = MemPtrNew(100);
x = FldGetTextPtr(FrmGetObjectPtr(frmP, FrmGetObjectIndex(frmP,
MainTextField)));
CtlSetLabel(FrmGetObjectPtr(frmP, FrmGetObjectIndex(frmP,
MainRespLabel)), x);
MemPtrFree(x);
}
handled = true;
}
break;
default:
break;
}
return handled;
}
Whenever I click the MainExecButton, after entering some text in
MainTextField, I get a Fatal Exception which forces me to reset the devices.
What am I doing wrong?
TIA.
Alex
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Alex Simonetti Abreu - Belo Horizonte - MG - Brazil
http://www.bhnet.com.br/~simonet
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"If a train station is a place where a train stops, what is a workstation?"
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