Having trouble with LoadRVFFromStream

Author

Message

Carlton Craighead

Posted: 01/30/2005 4:18:12

I am attempting to save the contents of a TRichViewEdit to a stream and

eventually restore it at a later time. It appears SaveRVFToStream is

operating correctly.

But attempting to use LoadRVFFromStream puts the control into what looks

like a read only state. The caret does not show (even when clicking in the

control ) and typing a keystroke produces an EListError exception (List

index out of bounds (-1)). The topmost RV-related line in the call stack

after this exception is TRVEditRVData.InsertTextTyping.

So I thought I'd take a step back and try a new small project. It contains

2 TRichViewEdits (rv1 and rv2), an RVStyle and a button. The button

procedure

procedure TForm1.Button1Click(Sender: TObject);

var

st: TMemoryStream;

begin

st := TMemoryStream.Create;

rv1.SaveRVFToStream(st, false);

st.Seek(0, 0);

rv2.LoadRVFFromStream(st);

st.Free;

end;

This example exhibits the same problem. Converting it to support RTF does

not place any text in the second control, but also not not throw and

exception when typing. As a sanity check, converting it to use 2 TMemo

controls and streaming the Lines property works as expected.

Am I missing something or might there be a problem here? Thanks.