IsCOMObject

See Also: FlexCOM Helper Functions, IsNullComObject, IsComObjectCreated, pvComObject

Purpose

Returns True if the passed value is a non-Null IDispatch* value. Otherwise returns False.

Return Type

Boolean

Syntax

(IsComObject( {vComObject} ))

Where:

What it Does

This Boolean function returns True if the passed variable or property is of type variant IDispatch* and is not set to NULL. It will return False otherwise.

Use this function instead of attempting to use an IDispatch* variant in a comparative expression like (vComObject = 0). Such an expression would never work and would raise a runtime error.

The following example tests a variant variable using IsComObject to see if it is a non-Null IDispatch*.

Variant vMyVar

 

// ...

 

If (IsComObject(vMyVar)) Begin

    // do something

End