我正在尝试编写一个更好（我认为更好）且可重用的 WndProc 过程，但是下面的代码不起作用，因为当我向子公司添加更多参数时，它说子不接受那么多参数，当然这是合理的。
但是我知道这个技巧是可以做到的，因为我之前在一些第三方类中看到过带有很多自定义参数的同一个 wndproc 子程序，我不记得我在哪里见过我不记得他们是怎么做的诀窍。
那么，如果它有问题，有人可以帮助我修复这段代码并改进它吗？
另外，这样修改的性能有什么要注意的吗？真的我不知道这样的事情是否会以某种方式影响性能。
''' <summary>
''' Windows Message Identifiers.
''' </summary>
Private Enum Messages As Integer
''' <summary>
''' Message is sent when the user chooses a command from the system menu,
''' or when the user chooses the "maximize", "minimize", "restore", or "close" buttons.
''' </summary>
WM_SYSCOMMAND = &H112
End Enum
''' <summary>
''' Intercepts Windows messages for this Window.
''' </summary>
''' <param name="MsgInt32">
''' Message Identifier as Integer.
''' </param>
''' <param name="MsgWin32">
''' Message Identifier as Win32Hex format.
''' </param>
''' <param name="MsgHex">
''' Message Identifier as Hexadecimal format.
''' </param>
''' <param name="HWnd">
''' Window Handle.
''' </param>
''' <param name="LParam">
''' LParan message argument.
''' </param>
''' <param name="WParam">
''' WParam message argument.
''' </param>
''' <param name="Result">
''' Specifies the value that is returned to window in response to handling the message.
''' </param>
Protected Overrides Sub WndProc(ByRef m as Message,
ByRef MsgInt32 As Integer
ByRef MsgWin32 As String,
ByRef MsgHex As String,
ByRef HWnd As IntPtr,
ByRef LParam As IntPtr,
ByRef WParam As IntPtr,
ByRef Result As IntPtr)
Select Case MsgInt32
Case Messages.WM_SYSCOMMAND
MsgBox(MsgWin32)
MsgBox(LParam)
MsgBox(WParam)
End Select
' Return control to base message handler.
MyBase.WndProc(m, CInt(m.Msg), "&H" & Hex(m.Msg), Hex(m.Msg), m.HWnd, m.LParam, m.WParam, m.Result)
End Sub
更新：
我找到了我将复制的原始代码之一，以便更轻松地管理消息。
Public Declare Function CallWindowProc Lib "user32.dll" Alias "CallWindowProcA" (ByVal _
lpPrevWndFunc As Long, ByVal hWnd As Long, ByVal Msg As Long, ByVal wParam _
As Long, ByVal lParam As Long) As Long
Public Delegate Function ipWindowProc(ByVal hwnd As Integer, ByVal uMsg As Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer
Dim ip As ipWindowProc = AddressOf Me.WindowProc
' The following function acts as Form1's window procedure to process messages.
Public Function WindowProc(ByVal hwnd As Integer, ByVal uMsg As Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer
Dim bTopMost As Boolean = Me.TopMost
Dim hMenu As Integer = 0
Dim iRet As Integer = 0
Dim mii As MENUITEMINFO
Select Case uMsg
Case WM_INITMENU
hMenu = GetSystemMenu(hwnd, 0)
mii.cbSize = Len(mii)
mii.fMask = MIIM_STATE
If bTopMost = True Then
mii.fState = MFS_ENABLED Or MFS_CHECKED
Else
mii.fState = MFS_ENABLED Or 0
End If
iRet = SetMenuItemInfo(hMenu, 1, 0, mii)
WindowProc = 0
Case WM_SYSCOMMAND
If wParam = 1 Then
mii.cbSize = Len(mii)
mii.fMask = MIIM_STATE
If bTopMost = True Then
mii.fState = MFS_ENABLED Or 0
iRet = SetMenuItemInfo(hMenu, 1, 0, mii)
Me.TopMost = False
Else
mii.fState = MFS_ENABLED Or MFS_CHECKED
iRet = SetMenuItemInfo(hMenu, 1, 0, mii)
Me.TopMost = True
End If
WindowProc = 0
Else
WindowProc = CallWindowProc(ioProc, hwnd, uMsg, wParam, lParam)
End If
Case Else
WindowProc = CallWindowProc(ioProc, hwnd, uMsg, wParam, lParam)
End Select
End Function
更新 2
好吧，我已经从上面的代码中翻译了这个，现在我需要添加什么来使它像上面的代码一样作为 wndproc 替换工作？
public class form1
<System.Runtime.InteropServices.
DllImport("user32.dll")>
Private Shared Function CallWindowProc(
ByVal lpPrevWndFunc As WndProcDelegate,
ByVal hWnd As IntPtr,
ByVal Msg As UInteger,
ByVal wParam As IntPtr,
ByVal lParam As IntPtr
) As IntPtr
End Function
Delegate Function WndProcDelegate(
ByVal hWnd As IntPtr,
ByVal msg As UInteger,
ByVal wParam As IntPtr,
ByVal lParam As IntPtr
) As IntPtr
''' <summary>
''' Process Windows messages.
''' This function acts as wndproc.
''' </summary>
Public Function WindowProc(ByVal hwnd As IntPtr,
ByVal uMsg As UInteger,
ByVal wParam As IntPtr,
ByVal lParam As IntPtr) As Integer
Select Case uMsg
Case &H112
MsgBox("Message intercepted!")
End Select
End Function
End class
