Hi,
The listview example doesn't run on 64 bit computers. This is caused by the fact
that the listview example contains listview items. Those items are streamed by
reading/writing a TItemInfo record for each item with the following code:
Stream.ReadBuffer(ItemInfo, SizeOf(ItemInfo));
Because TItemInfo contains a pointer, the size of TItemInfo is not the same on 32
bits platforms as on 64 bits platforms. The example is stored with a TItemInfo with
a 4 bytes data field, the 64 bits lazarus version reads a 8 byte field and in the
end more data will be read then there is available.
How can this be solved? Should we change the ListItem.Data property to an integer or
a cardinal?
See also http://www.freepascal.org/mantis/view.php?id=8647
TItemInfo = record // packing is not needed (and not wanted since it controls
also how this record is stored)
ImageIndex: Integer;
StateIndex: Integer;
OverlayIndex: Integer;
SubItemCount: Integer;
Data: Pointer;
//Caption: string[255]; // all stings follow here
end;
Vincent
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