This function returns True, if the COM object has been created indicating that it is safe to access its interface.
Function IsComObjectCreated Returns Boolean
Call: | Get IsComObjectCreated to BooleanVariable |
You can test to see if a COM object exists by getting the value of IsComObjectCreated.
This is analogous to testing if the pvComObject property is Not Null (created), or Null (released).
The following example demonstrates the use of IsComObjectCreated in the OnClick event of a button object.
Procedure OnClick Boolean bIsComObjectCreated // test If the calendar ActiveX control currently exists. Get IsComObjectCreated of oCalendar1 To bIsComObjectCreated If (bIsComObjectCreated) Begin // Set the calendar's date to today's date Send ComToday of oCalendar1 End End_Procedure
Testing IsComObjectCreated is crucial to writing error free COM applications. You should test this value before executing any code that accesses a COM object's interface methods or properties. The exception to this rule is when you access a COM object inside an OnCreate event handler.