isubclass.cls

来自「Visual basic 数据库编程技术与实例源码 源码」· CLS 代码 · 共 33 行

VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "ISubclass"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Option Explicit

Public Enum EMsgResponse
    emrConsume      ' Process instead of original WindowProc
    emrPostProcess  ' Process after original WindowProc
    emrPreprocess   ' Process before original WindowProc
End Enum

Public MsgResponse As EMsgResponse
Attribute MsgResponse.VB_VarDescription = "Get/set how you will respond to a message.  Raised whenever a message is encountered.  Call the CurrentMessage property to determine what message you are currently responding to."

Function WindowProc(ByVal hwnd As Long, _
                    ByVal iMsg As Long, _
                    ByVal wParam As Long, _
                    ByVal lParam As Long) As Long
Attribute WindowProc.VB_Description = "Raised whenever a message you have subclassed is sent."
End Function
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