Ahh, see I knew it was a stupid problem. I am using the callback draw function. Duh.
Thanks for the reply! -Mike "Ben Combee" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > > > What I want to do is retreive the text in a list. > > > > > > void MyFunction() > > { > > Word HitButton; > > Word indx; > > ListPtr list; > > FormPtr frm; > > char* tmp ; > > > > frm = FrmGetActiveForm(); > > > > list = > > (ListPtr)FrmGetObjectPtr(frm,FrmGetObjectIndex(frm,ViewLogsDBListList)); > > indx = LstGetSelection (list); > > tmp = LstGetSelectionText (list, indx); // return pointer to text > in > > list > > HitButton = FrmCustomAlert(LogDeleteAlert, tmp, NULL , NULL); > > } > > > > I get a "app read from low memory" error when it gets to the > > "LstGetSelectionText" line. "List" is a valid ListPtr and "indx" = the > > index of the item in the list. > > 1) Make sure you're not getting a "-1 == noListSelection" from > LstGetSelection, which would happen if nothing is selected in the list. > > 2) LstGetSelectionText only works if you've got real text entries in the > list. If you're using a custom draw function, then there is no backing list > of strings from which to grab. > > > Another questions is why in all the examples I never see FrmGetObjectPtr, > or > > other functions that return void pointers, needing to be typecasted to the > > type of the pointer that is being set? But if I do that I get a "cannot > > convert void* to [insert type here]*" error when I compile? > > If you're in C++, you'll get this message. In C, "void *" silently converts > to any other pointer type, so you get no warning. > > > > -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/
