Specify formatting with OnMailMergeGetText ?

Zitat

I'd like to have the ability to insert an open or checked box for boolean field values. Is it possible to specify formatting with OnMailMergeGetText?

You have access to the current writing attribute through
Contents.pMergeAttr^
There you can set the font (GetFontNr!), Color etc.

Using different StringValues for true/false you can draw checkboxes using the WingDing font:

if inspname='TRUE' then
 begin
   Contents.pMergeAttr^.Font := WPRichText1.GetFontNr('WingDings');
   Contents.StringValue := #253;
 end else if inspname='FALSE' then
 begin
   Contents.pMergeAttr^.Font := WPRichText1.GetFontNr('WingDings');
   Contents.StringValue := #111;
 end;