TRichView.com

Do you use RichView v1.9.8 and Delphi 2005?

This method can be called only for editors, and it can be undone/redone by the user.
procedure CopyTableColumnEd(rv: TCustomRichViewEdit; table: TRVTableItemInfo;
SourceCol, DestCol: Integer);
var r: Integer;
Stream: TMemoryStream;
UnusedColor: TColor;
oldps, oldts:TRVFReaderStyleMode;
begin ...

Copying the column SourceCol to the column DestCol.

procedure CopyTableColumn(rv: TCustomRichView; table: TRVTableItemInfo;
SourceCol, DestCol: Integer);
var r: Integer;
Stream: TMemoryStream;
UnusedColor: TColor;
oldps, oldts:TRVFReaderStyleMode;
begin
if SourceCol=DestCol then
exit ...

Something like this is planned for future, see StyleTemplate collection in TRVStyle)

There is an option in SaveHTMLEx to save inline styles instead of CSS table, but it saves all styles, and HTML becomes very large.

Now about writing from stream to the cell.

There are two ways
1) First, using LoadRVFFromStream.
This method cannot be undone/redone and damages undo buffers (as viewer-style method), so call RichViewEdit1.ClearUndo after calling it.

Cell loading does not support styles, so we must turn off style ...

Thanks again, Michel :)

Some comments about copying to the stream:

// c++
TRVTableCellData *Cell = Table->Cells[0][0];
Cell->SaveRVFToStream(MS, false, clNone, NULL, NULL);
// pascal
var Cell: TRVTableCellData;
Cell := Table.Cells[0,0];
Cell.SaveRVFToStream(MS, False, clNone, nil, nil);
The ...

Is this a problem with strandard TRichView table printing, or with that procedure for printing one pixel border?

There is ONLY ONE possible reason for this bug: mismatched calls of SetUndoGroupMode.
If you call this method, please recheck your code.

There is an undo logging mechanism embedded in TRichView.
Compile your application with RVDEBUGUNDO define
(for example, add {$DEFINE RVDEBUGUNDO} in RV_Defs.inc ...

It would be too complex to implement. I mean, disabling the update of internal data representing formatting. Redrawing does not occur usually, because Invalidate does not repaint the window itself. This case is an exception, because it involves creating of inplace table editors.

And I think that ...

Thanks, Michel.

Some additional information.

How can I get all text from the editor without selecting it and without using clipboard
function GetAllText(rv: TCustomRichView): String;
from RVGetText unit,
or
function RVGetTextRange(rv: TCustomRichView; RangeStart, RangeLength: Integer ...

Please send me a project (as simple as possible) reproducing this problem.

May be they still use older version of your application, compiled with older RichViewActions?

If not, please repeat undo logging.

Yes, it is slow, because it creates inplace editors for all cells one by one.
You can speed it up and remove flickering by forbidding redrawing:

SendMessage(rve.Handle, WM_SETREDRAW, 0, 0);
try
<indert that code here>
finally
SendMessage(rve.Handle, WM_SETREDRAW, 1, 0);
rve.Invalidate;
end;

Yes, the sequence I described must be done at design time.
You can change properties in the Object Inspector, but using a component editor ("Settings" in the context menu when you right click TRichView in Delphi) is simpler.