TRichView.com

May be, when I will have time for it.
Or may be some user will contribute his improvements in this action

I need some time to review this problem. I'll answer later this week.

As far as I understand, TrvActionInsertSymbol does what you want (menu Insert | Symbol)

Since it's only export, not import, HTML saving functions are available only in the TrvActionExport. And this action was implemented before XHTML support, so it does have separate items in the file filter for it. You can save either HTML or XHTML using this action, depending on rvActionExport.SaveOp...

Using Shockwave Flash ActiveX in RichView.
You can play SWF movies just in RichView documents, save/load them in RVF, export to HTML.

Download
http://www.trichview.com/support/files/rvswf.zip
and read readme.txt

This demo does not modify the second editor, if the text in the first editor is changed. It only highlights paragraph with the same index.

This information is about TRichView versions prior to 11. Information about TRichView 11 and newer is in the next post. 1) Set Unicode property to True for all TextStyles in TRVStyle 2) Set RichViewEdit1.RTFReadProperties.UnicodeMode = rvruOnlyUnicode 3) Some methods cannot be used if the document ...

This demo already has a button (Button1) allowing choosing color from dialog

This property affects only the background color.
To remove a background bitmap from printing, call
RVPrint.rv.BackgroundBitmap := nil;
after calling RVPrint.AssignSource.

1) You can insert any Delphi control in document. Just create it and call RichViewEdit.InsertControl. For OLE objects, use TOleContainer. Example can be found in Demos\Delphi\Editors\Editor 1\ demo, menu Edit | Paste As | OLE. TOleContainer is quite a "delicate" component, it's required to...

May be you call Format somewhere, and it resets the caret position to the beginning? It's better to use functions from RVLinear.pas to store and restore the selection. function RVGetLinearCaretPos(rve: TCustomRichViewEdit): Integer; procedure RVSetLinearCaretPos(rve: TCustomRichViewEdit; LinearPos: ...

Hmm... This is not a very good workaround, because background can be colored (document/paragraph/table), and white tabs on them must be noticeable.

I modified the code: added the condition (RVData.ItemCount>1), to prevent deleting the last RVData item.
It's ok to delete all items from TRichView.
It's ok to delete all items from TRichViewEdit (one empty line will be readded by Format).
But it's not ok to delete all items from table cells.

This procedure removes all line breaks that can be removed: procedure RemoveParagraphBreaks(RVData: TCustomRVData); var i,r,c: Integer; table: TRVTableItemInfo; begin for i := 0 to RVData.ItemCount-1 do if (i>0) and RVData.IsFromNewLine(i) and not RVData.GetItem(i).GetBoolValue(rvbpFullWidth) and no...

This code deletes all empty lines: procedure DeleteBlankLines(RVData: TCustomRVData); var i,r,c: Integer; table: TRVTableItemInfo; begin for i := RVData.ItemCount-1 downto 0 do if RVData.IsFromNewLine(i) and (RVData.GetItemStyle(i)>=0) and (RVData.GetItemText(i)='') and (RVData.ItemCount>1) and ((i ...