PV GET DRAG SIGNATURES

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4D View v16


PV GET DRAG SIGNATURES ( area ; signatures )

Parameter	Type	Description
area	Longint	4D View area
signatures	String array	Signatures array

Description

The PV GET DRAG SIGNATURES command gets the area's drag signatures in the signatures array.

Signatures are alphanumeric strings whose content is free. The maximum length for a signature is 32 characters.

Example

Display a help message in cases where the area can be the object of an internal drag and drop.

 ARRAY TEXT($DragSignatureArray;0)

 ARRAY TEXT($DropSignatureArray;0)

 C_TEXT(HelpMessage)

 C_LONGINT($Index)

 

 PV GET DRAG SIGNATURES(Area;$DragSignatureArray)

 PV GET DROP SIGNATURES(Area;$DropSignatureArray)

 HelpMessage:=""

 For($Index;1;Size of array($DragSignatureArray)) //Look for a common signature

    If(Find in array($DropSignatureArray;$DragSignatureArray{$Index})#-1)

       HelpMessage:="You can drag and drop inside this area."

       $Index:=Size of array($DragSignatureArray)

    End if

 End for