about external methods

[carlos medina]

following the C# specification:

"Use the extern modifier in a method declaration to indicate that the method is implemented externally. A common use of the extern modifier is with the DllImport attribute."

"When an external method includes a DllImport attribute, the method declaration must also include a static modifier."

Somebody can tell me or give me an example or url that shows me how implement extern modifier without the DllImport attribute ????? Is possible to use the extern modifier if the static modifier isn't ??

thanks

[carlos medina]

thanks mattias

"Mattias Sjögren" <ma********************@mvps.org> wrote in message news:uG**************@TK2MSFTNGP12.phx.gbl...

Carlos,

Somebody can tell me or give me an example or url that shows me how implement extern modifier without the DllImport attribute ?????

Microsoft uses it to implement internalcall methods in the BCL. Check
out the Rotor sources at

http://sharedsourcecli.sscli.net/sou...i/clr/src/bcl/

Is possible to use the extern modifier if the static modifier isn't ??

Yes, for example System.Object.GetHashCode() is an instance method
declared extern.



Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/
Please reply only to the newsgroup.

[carlos medina]

thanks mattias

"Mattias Sjögren" <ma********************@mvps.org> wrote in message news:uG**************@TK2MSFTNGP12.phx.gbl...

Carlos,

Somebody can tell me or give me an example or url that shows me how implement extern modifier without the DllImport attribute ?????

Microsoft uses it to implement internalcall methods in the BCL. Check
out the Rotor sources at

http://sharedsourcecli.sscli.net/sou...i/clr/src/bcl/

Is possible to use the extern modifier if the static modifier isn't ??

Yes, for example System.Object.GetHashCode() is an instance method
declared extern.



Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/
Please reply only to the newsgroup.