Caller Property

Applies To

Application object.

Description

Returns information about how Visual Basic was called (for more information, see the Remarks section).

Syntax

expression.Caller(Index)

expression Required. An expression that returns an Application object.

Index Optional Variant. An index to the array. This argument is used only when the property returns an array (for more information, see the Remarks section).

Remarks

This property returns information about how Visual Basic was called, as shown in the following table.

Caller	Return value

A custom function entered in a single cell	A Range object specifying that cell
A custom function that is part of an array formula in a range of cells	A Range object specifying that range of cells
An Auto_Open, Auto_Close, Auto_Activate, or Auto_Deactivate macro	The name of the document as text
A macro set by either the OnDoubleClick or OnEntry property	The name of the chart object identifier or cell reference (if applicable) to which the macro applies
The Macro dialog box (Tools menu), or any caller not described above	The #REF! error value

Example

This example displays information about how Visual Basic was called.

Select Case TypeName(Application.Caller)
    Case "Range"
        v = Application.Caller.Address
    Case "String"
        v = Application.Caller
    Case "Error"
        v = "Error"
    Case Else
        v = "unknown"
End Select
MsgBox "caller = " & v