Get pointer
Get pointer ( varName ) : Pointer
| Parameter | Type | Description | |
|---|---|---|---|
| varName | Text | → | Name of a process or interprocess variable |
| Function result | Pointer | ← | Pointer to process or interprocess variable |
Description
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}", as well as 2D array elements (ArrName+"{3}{5}") to Get pointer.
However, you cannot pass variable elements (ArrName+"{myVar}").
Example 1
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
Example 2
Using pointers to elements of two-dimensional arrays:
$pt:=Get pointer("a{1}{2}")
//$pt=->a{1}{2}
$pt2:=Get pointer("atCities"+"{2}{6}")
//$pt2=->atCities{2}{6}
See also
Properties
| Command number | 304 |
| Thread safe | ✓ |