com.sun.jna.platform.win32

## Interface WinUser.WindowProc

- All Superinterfaces:
    Callback
  Enclosing interface:
    WinUser

      public static interface WinUser.WindowProc
      extends Callback

  An application-defined function that processes messages sent to a window. The WNDPROC type defines a pointer to this callback function. WindowProc is a placeholder for the application-defined function name.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from interface com.sun.jna.Callback

      `Callback.UncaughtExceptionHandler`

  - ### Field Summary

    - ### Fields inherited from interface com.sun.jna.Callback

      `FORBIDDEN_NAMES, METHOD_NAME`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `WinDef.LRESULT` | `callback(WinDef.HWND hwnd, int uMsg, WinDef.WPARAM wParam, WinDef.LPARAM lParam)`

- - ### Method Detail

    - #### callback

          WinDef.LRESULT callback(WinDef.HWND hwnd,
                                int uMsg,
                                WinDef.WPARAM wParam,
                                WinDef.LPARAM lParam)

      Parameters:
        `hwnd` - [in] Type: HWND A handle to the window.
        `uMsg` - [in] Type: UINT The message. For lists of the system-provided messages, see System-Defined Messages.
        `wParam` - [in] Type: WPARAM Additional message information. The contents of this parameter depend on the value of the uMsg parameter.
        `lParam` - [in] Type: LPARAM Additional message information. The contents of this parameter depend on the value of the uMsg parameter.
      Returns:
        the lresult

Copyright © 2007-2013 Timothy Wall. All Rights Reserved.