Help with CSharp syntax [xxx()] and ~xxxx() ???

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webmaster@1stmiami.com - 30 Aug 2006 13:11 GMT

I have two intro books that all of sudden jump into programs with the
following syntax:

[DLLImport("dll.dll")]
static etern int GetWindowsResource();

and

~ResourceWrapper()
{
Dispose(false);
}

Can sombody tell me what is [] and ~ telling the compiler?

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John Duval - 30 Aug 2006 13:53 GMT

Hi,

[] indicates an attribute. The DllImport attribute is used when
calling an unmanaged DLL function from managed code (see also
"P/Invoke"). Here's an MSDN link:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlr
fSystemRuntimeInteropServicesDllImportAttributeClassTopic.asp

~ indicates a class finalizer (similar to a C++ destructor, or
Class_Terminate if you're familiar with VB). Here's an MSDN link:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlr
fsystemobjectclassfinalizetopic.asp

John

> I have two intro books that all of sudden jump into programs with the
> following syntax:
[quoted text clipped - 10 lines]
>
> Can sombody tell me what is [] and ~ telling the compiler?

Reply to this Message

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