D Documentation  
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  1. Introduction
    1. A simple tutorial
    2. Switching to D
    3. An advanced tutorial
  2. Language Reference
    1. General syntax
    2. Statements
    3. Types
      1. void
      2. bit
      3. Integer data types
      4. Floatingpoint data types
      5. Character data types
      6. Derived data types
      7. User Defined Types
      8. Delegates
    4. Error Handling
    5. Memory Management
  3. Std. runtime library (Phobos)
    1. std.base64
    2. std.boxer
    3. std.compiler
    4. std.conv
    5. std.ctype
    6. std.date
    7. std.file
    8. std.format
    9. std.gc
    10. std.intrinsic
    11. std.math
    12. std.md5
    13. std.mmfile
    14. std.outbuffer
    15. std.path
    16. std.process
    17. std.random
    18. std.recls
    19. std.regexp
    20. std.socket
    21. std.socketstream
    22. std.stdint
    23. std.stdio
    24. std.stream
    25. std.string
    26. std.system
    27. std.thread
    28. std.uri
    29. std.utf
    30. std.zip
    31. std.zlib
  4. Libraries and Tools
    1. mango
    2. Build
  5. Related Links
  6. About this documentation
Delegates
Delegates can be seen as "method pointers". They contain a reference to the object and a pointer to the method, therefore it can not point to functions or static methods.

Example:
int delegate(int) foobar;   // foobar is a delegate which takes an int and returns an int

class Foo {
  int mymethod(int x) {
    return x;
  }
}

Foo foo = new Foo();
foobar = &foo.mymethod;
writefln(foobar(128));      // call mymethod(128)
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