AnyWin class.
Tests whether or not a specified definition exists.
bDefined = window.IsDefined(sName, [Class, wdhDefinedHow])
| Variable | Description |
|---|---|
| bDefined | TRUE if the definition exists. BOOLEAN. |
| sName | The name of the definition to look for. STRING. |
| wcClass | Optional: The window class of sName if it is defined by the window’s class. NULL if sName is defined by the window or not defined. out DATACLASS. |
| wdhDefinedHow |
Optional: Specify DEFINED_METHOD to have IsDefined look for a method, DEFINED_NOT_METHOD to look for another type of definition, for example a property or member, or DEFINED_ANY to look for any definition. See WINDOWDEFINEDHOW Data Type. |
IsDefined returns TRUE if the specified definition exists in the declaration for the window, or FALSE if it is not defined. IsDefined is useful when you want to check that a method that you would like to call explicitly is actually defined. At other times, you might want to pass sName, if it exists, as an argument to a function or method. Use a NULL argument to omit the first optional parameter.
Print(TextEditor.IsDefined("File")) //prints TRUE for File menu
Print("Defined as Method: ", TestApp.IsDefined("Close", NULL, DEFINED_METHOD)) //prints Defined as Method: TRUE
Print("Not Defined as Method: ", TestApp.IsDefined("Close", NULL, DEFINED_NOT_METHOD)) //prints Not Defined as Method: FALSE
Print("Is It Defined: ", TestApp.IsDefined("Close", NULL, DEFINED_ANY)) //prints Is It Defined: TRUE