c# - How Define Callback Func Inside Of Calling Method? -

i declare / define delegate , callback function inside of calling method. possible ? if yes how ? code want execute my first implant operation on:

delegate bool mydelegate(intptr module, string type, intptr lparam);  public static bool enumrestypeproc(intptr module, string typename, intptr lparam) {     (((gchandle) lparam).target list<string>).add(typename);     return true; }  public static string[] getresourcetypes(intptr module) {     list<string> result = new list<string>();     gchandle pin = gchandle.alloc(result);     winapi.enumresourcetypes(module, marshal.getfunctionpointerfordelegate(new mydelegate(enumrestypeproc)), (intptr)pin);     pin.free();     return result.toarray(); } 

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closest get:

delegate bool mydelegate(intptr module, string type, intptr lparam);  public static string[] getresourcetypes(intptr module) {     list<string> result = new list<string>();     gchandle pin = gchandle.alloc(result);     mydelegate d = delegate(intptr handle, string typename, intptr lparam)         { (((gchandle) lparam).target list<string>).add(typename); return true; };     winapi.enumresourcetypes(module, marshal.getfunctionpointerfordelegate(d), (intptr) pin);     pin.free();     return result.toarray(); } 

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declaring delegate inside method not possible @ point. if compiled causes unmanaged code crash application.

yes, can use anonymous method or lambda expression.

// untested func<intptr, string, intptr, bool> inline = (module, typename, lparam) => {     (((gchandle)lparam).target list<string>).add(typename);     return true; };  winapi.enumresourcetypes(module, marshal.getfunctionpointerfordelegate(inline), (intptr)pin);