Property ppParentWnd removed from TppStretchable ReportBuilder 7 enterprise

rbuser

I noticed ppParentWnd property was removed from TppStretchable in
reportbuilder 7 when i tried to compile wptools reportbuilder tools.

What was exactly this property and could that be the reason why i cant
print my WPTRichText.

Frederic.

nardmoseley

ReportBuilder 7 no longer includes the global ppParentWnd due to
modifications required for thread-safety.

You have two choices:

1. Modify TWPCustomRichTextForPP (or create a descendant class).
Override the CreateParams as shown below. CreateParams is a protected
method of TWinControl. (note: This is the approach that RB uses so that
RichText can be thread-safe for RB Server.)


procedure TWPCustomRichTextForPP.CreateParams(var Params:
TCreateParams);
begin

inherited CreateParams(Params);

{remove ws-child so that no parent window is required}
Params.Style := Params.Style and not(WS_CHILD);

end; {procedure, CreateParams}


2. Create an invisble form and use that as the parent. (note: This is
not thread-safe).

rbuser

I tested first method and it had exact same effect as my first try.

nardmoseley

Perhaps I was not clear.

1. Modify the TWPCustomRichTextForPP code as I described.

2. Remove references to ppParentWnd from your code. The change in 1 above
enables a WinControl descendant to be created without assigning the Parent
property. If WPTools contains some code the depends upon the Parent being
non nil then this may not work. However it does work for Delphi's RichEdit
and for TeeChart.


Nard Moseley
Digital Metaphors
http://www.digital-metaphors.com