CallByName

Calls a method, or reads or writes a property, on an object — looked up by name at run time.

Syntax: CallByName( object , procname , calltype [ , args … ] )

object: required Object. The object whose member is to be invoked.
procname: required String. The name of the method or property to invoke on object.
calltype: required A VbCallType value indicating the kind of member: vbMethod, vbGet, vbLet, or vbSet.
args: optional The arguments to pass to the method, Property Get, Property Let, or Property Set.

The return value is a Variant containing whatever the call returned. For methods that return nothing, or for property assignments, the result is Empty.

Note

In BETA 1005, when the member called raises an error itself with a constant number, as in Err.Raise 380, or with the Error statement, CallByName raises error -2147352567 (&H80020009), Exception occurred., not that number. VB6 raises the member’s own number. A number the member passes in a variable, as in Err.Raise Number, and a run-time error such as a division by zero arrive unchanged.

Example

These three calls use CallByName to operate on a control by name. The first sets its MousePointer property to the crosshair cursor, the second reads the same property back out, and the third invokes the Move method to reposition the control.

Dim Result As Variant
CallByName Text1, "MousePointer", vbLet, vbCrosshair
Result = CallByName(Text1, "MousePointer", vbGet)
CallByName Text1, "Move", vbMethod, 100, 100

CallByName

Example

See Also