• =?ISO-8859-1?Q?Hans-Eric_Gr=f6nlund?= (5/5) Aug 30 2007 Hello!
• Frank Benoit (13/21) Aug 30 2007 Object o = ....;
• Myron Alexander (5/13) Aug 30 2007 You can use the cast operator to determine if something can be cast to a...

=?ISO-8859-1?Q?Hans-Eric_Gr=f6nlund?= <hasse42g gmail.com> writes:

Hello!

How can I check if an object is of a certain class, or implements a certain
interface?

Thanks 

Hans-Eric Grönlund
http://www.hans-eric.com/

Frank Benoit <keinfarbton googlemail.com> writes:

Hans-Eric Grönlund schrieb:
 Hello!
 
 How can I check if an object is of a certain class, or implements a certain
interface?
 
 Thanks 
 
 Hans-Eric Grönlund
 http://www.hans-eric.com/


Object o = ....;

// full qualified class name
o.classinfo.name

// test if castable to class or interface
MyType t = cast(MyType)o;
if( t !is null ){
	// ok, it is castable
}

// short form
if( MyType t = cast(MyType)o ){
	// ok, it is castable
}

Myron Alexander <someone somewhere.com> writes:

Hans-Eric Grönlund wrote:
 Hello!
 
 How can I check if an object is of a certain class, or implements a certain
interface?
 
 Thanks 
 
 Hans-Eric Grönlund
 http://www.hans-eric.com/

You can use the cast operator to determine if something can be cast to a 
type. See attached example.

Regards,

Myron.