$$Fields and Reserved Notes Field Names Glossary

I got this content long back from some website.. can't remember.

I found it very useful. So, here it is for your use..

$$Fields and Reserved Notes Field Names Glossary

Anonymous on 08/26/1999 at 07:51 PM

Category: Notes Developer Tips
Forms/Subforms, Formulas

$$ Fields

$$HTMLhead
If you don't use the "For Web Access: Treat document contents as HTML" form property, adding a $$HTMLHead field to a form allows you to pass HTML information, such as Meta tags and JavaScript, to the Head tag for a document. The field can be any data type, but a hidden computed-for-display text field is the best choice.
(source: Notes Help 4.6)

$$QueryOpenAgent (4.6) or the form event WebQueryOpen (4.6)
The Notes Help 4.6 says about WebQueryOpen: A WebQueryOpen event runs the agent before Domino converts a document to HTML and sends it to the browser. Domino ignores any output produced by the agent in this context.
Create a shared agent that runs manually. Then write a formula that uses @Command({ToolsRunMacro}) to run the agent and attach it to the WebQueryOpen form events.
This simulates the LotusScript QueryOpen form event that isn't supported on the Web.
The $$QueryOpenAgent field works in the same way. Works also in 4.6.

Validating a rich text field

Validating a rich text field:

http://www.ibm.com/developerworks/lotus/library/rich-text-field-notes/

I have copy pasted the three methods from the above link for my reference.

Method 1

In the first method, if the field contains any input (even only a single space character), then it can pass the validation. This validation uses the Querysave event of the form that contains the field. The following LotusScript sample code performs this validation:

Sub Querysave(Source As Notesuidocument, Continue As Variant)             If ( Source.FieldGetText( "rtfield" ) = "" ) Then                  Messagebox( "Please enter some text." )                  Call Source.GotoField( "rtfield" )                  Continue = False          End If End Sub

The code checks for any character in the field rtfield. If the field contains input (even if it consists solely of one or more space characters), then validation succeeds. If the field is empty, then the code returns an error message, and doesn’t save the document (by setting Continue to False).

Method 2

In the second method, the rich text field must contain at least one non-space character (in other words, an input consisting entirely of one or more spaces is not allowed). This check also uses the Querysave event of the form:

Sub Querysave(Source As Notesuidocument, Continue As Variant)                   Dim rtitem As NotesRichTextItem          Set doc = Source.Document          Set rtitem = doc.GetFirstItem( "rtfield" )          Dim text As String                   text$ = Source.FieldGetText("rtfield")          trimmed$ = Trim(text)                         if ( trimmed$ = "") Then                  Msgbox "Please enter some text."                  Continue = False                  source.GotoField("rtfield")                  source.Refresh(True)          Else                  Continue = True                           End If End Sub

Method 3

Our third method validates a rich text field in which an input consisting solely of an attachment, embedded object, or link is allowed, even if it includes no accompanying text. Once again, we use the Querysave event of the form containing the field:

Sub Querysave(Source As Notesuidocument, Continue As Variant)                   Dim rtitem As NotesRichTextItem          Set doc = Source.Document          Set rtitem = doc.GetFirstItem( "rtfield" )          Dim text As String                   text$ = Source.FieldGetText("rtfield")          trimmed$ = Trim(text)                   If(doc.Hasembedded)  Then                  Continue = True                                             Elseif ( trimmed$ = "") Then                  Msgbox "Please enter some text."                  Continue = False                  source.GotoField("rtfield")                  source.Refresh(True)          Else                  Continue = True                      End If End Sub

This code will work if there is an attachment anywhere in the document, even if it's not in the field that is being validated.