4D v13.4

Get pointer

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4D v13.4
Get pointer

Get pointer 


 

Get pointer ( varName ) -> Function result 
Parameter Type   Description
varName  String in Name of a process or interprocess variable
Function result  Pointer in Pointer to process or interprocess variable

The Get pointer command returns a pointer to the process or interprocess variable whose name you pass in varName.

To get a pointer to a field, use Field. To get a pointer to a table, use Table.

Note: You can pass expressions such as, for example, ArrName+"{3}" to Get pointer. However, you cannot use 2D array elements (ArrName+"{3}{5}") or variable elements (ArrName+"{myVar}").

Example  

In a form, you build a 5 x 10 grid of enterable variables named v1, v2... v50. To initialize all of these variables, you write:

  ` ...
 For($vlVar;1;50)
    $vpVar:=Get pointer("v"+String($vlVar))
    $vpVar->:=""
 End for

 
PROPERTIES 

Product: 4D
Theme: Language
Number: 304

 
INDEX

Alphabetical list of commands

 
HISTORY 

Modified: 4D 2004

 
SEE ALSO 

Field
Table