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答案：进入正题了，下面就该是类中的代码了，因为主要是利用API，所以声明很多，耐心点吧！
'类模块中的代码:类名cToolbar
Option Explicit
Private Const CDDS_ITEM As Long = &H10000
Private Const CDDS_PREPAINT As Long = &H1
Private Const CDDS_ITEMPREPAINT As Long = (CDDS_ITEM Or CDDS_PREPAINT)
Private Const CDRF_SKIPDEFAULT As Long = &H4
Private Const CDRF_NOTIFYITEMDRAW As Long = &H20
Private Const CDIS_CHECKED As Long = &H8
Private Const CDIS_DISABLED As Long = &H4
Private Const CDIS_HOT As Long = &H40
Private Const CDIS_SELECTED As Long = &H1
Private Const GWL_WNDPROC = (-4)
Private Const WM_USER As Long = &H400
Private Const TB_GETBUTTONTEXTA As Long = (WM_USER + 45)
Private Const TB_GETIMAGELIST As Long = (WM_USER + 49)
Private Const TB_GETHOTIMAGELIST = (WM_USER + 53)
Private Const TB_GETDISABLEDIMAGELIST = (WM_USER + 55)
Private Const TB_GETBITMAP As Long = (WM_USER + 44)
Private Const TB_COMMANDTOINDEX As Long = (WM_USER + 25)
Private Const TB_GETBUTTON As Long = (WM_USER + 23)
Private Const TBSTYLE_LIST As Long = &H1000
Private Const TBSTYLE_SEP As Long = &H1
Private Const TBSTYLE_DROPDOWN As Long = &H8
Private Const ILD_NORMAL As Long = &H0
Private Const DST_TEXT = &H1&
Private Const DST_ICON As Long = &H3
Private Const DSS_DISABLED = &H20&
Private Const CLR_NONE As Long = &HFFFFFFFF
Private Const GWL_STYLE As Long = -16
Private Const PS_SOLID As Long = 0
Private Const TA_LEFT = 0
Private Const TA_RIGHT = 2
Private Const TA_CENTER = 6
Private Const BF_FLAT = &H4000
Private Const BF_BOTTOM = &H8
Private Const BF_LEFT = &H1
Private Const BF_RIGHT = &H4
Private Const BF_TOP = &H2
Private Const BF_RECT = (BF_LEFT Or BF_TOP Or BF_RIGHT Or BF_BOTTOM)
Private Const BDR_RAISEDOUTER = &H1
Private Const BDR_RAISEDINNER = &H4
Private Const BDR_SUNKENINNER = &H8
Private Const BDR_SUNKENOUTER = &H2
Private Const BDR_OUTER = &H3
Private Const EDGE_ETCHED = (BDR_SUNKENOUTER Or BDR_RAISEDINNER)
Private Const EDGE_RAISED = (BDR_RAISEDOUTER Or BDR_RAISEDINNER)
Private Const EDGE_SUNKEN = (BDR_SUNKENOUTER Or BDR_SUNKENINNER)
Private Type BITMAP
bmType As Long
bmWidth As Long
bmHeight As Long
bmWidthBytes As Long
bmPlanes As Integer
bmBitsPixel As Integer
bmBits As Long
End Type
Private Type ICONINFO
fIcon As Long
xHotspot As Long
yHotspot As Long
hbmMask As Long
hbmColor As Long
End Type
Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type
Private Type POINTL
X As Long
Y As Long
End Type
Private Type Size
cx As Long
cy As Long
End Type
Private Type LOGFONT
lfHeight As Long
lfWidth As Long
lfEscapement As Long
lfOrientation As Long
lfWeight As Long
lfItalic As Byte
lfUnderline As Byte
lfStrikeOut As Byte
lfCharSet As Byte
lfOutPrecision As Byte
lfClipPrecision As Byte
lfQuality As Byte
lfPitchAndFamily As Byte
lfFaceName As String * 32
End Type
Private Type TBBUTTON
iBitmap As Long
idCommand As Long
fsState As Byte
fsStyle As Byte
bReserved(1) As Byte
dwData As Long
iString As Long
End Type
Private Type MemHdc
hdc As Long
Bmp As Long
obm As Long
End Type
Private Type NMHDR
hwndFrom As Long
idfrom As Long
code As Long
End Type
Private Type NMCUSTOMDRAW
hdr As NMHDR
dwDrawStage As Long
hdc As Long
rc As RECT
dwItemSpec As Long
uItemState As Long
lItemlParam As Long
End Type
Private Type NMTBCUSTOMDRAW
nmcd As NMCUSTOMDRAW
hbrMonoDither As Long
hbrLines As Long
hpenLines As Long
clrText As Long
clrMark As Long
clrTextHighlight As Long
clrBtnFace As Long
clrBtnHighlight As Long
clrHighlightHotTrack As Long
rcText As RECT
nStringBkMode As Long
nHLStringBkMode As Long
End Type
Private m_hWnd As Long
Private m_lngBackColor As Long
Private m_lngBrdStyle As Long
Private m_lngTextColor As Long
Private m_lngTextHiColor As Long
Private m_strBkPicture As String
Private m_lngBrdColor As LongPrivate mpicBk As StdPicture
Private mlngImgList As Long
Private mdcWhite As MemHdc
Private mlngHotImgList As Long
Private mlngDsbImgList As Long
Private mlngBtnHiAlpha As Long
Private mlngBtnDownAlpha As Long
Private mlngIconWidth As Long
Private mlngIconHeight As Long
Private Font As LOGFONT
'消息与管理类
Private Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function ShowWindow Lib "user32" Alias "ShowWindowAsync" (ByVal hWnd As Long, ByVal nCmdShow As Long) As Long
Private Declare Function GetWindowLong Lib "user32.dll" Alias "GetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long) As Long
Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hWnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32.dll" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
'GDI对象类
Private Declare Function CreateSolidBrush Lib "gdi32.dll" (ByVal crColor As Long) As Long
Private Declare Function CreatePen Lib "gdi32.dll" (ByVal nPenStyle As Long, ByVal nWidth As Long, ByVal crColor As Long) As Long
Private Declare Function CreateFontIndirect Lib "gdi32" Alias "CreateFontIndirectA" (lpLogFont As LOGFONT) As Long
Private Declare Function SelectObject Lib "gdi32" (ByVal hdc As Long, ByVal hObject As Long) As Long
Private Declare Function DestroyIcon Lib "user32.dll" (ByVal hIcon As Long) As Long
Private Declare Function DeleteObject Lib "gdi32.dll" (ByVal hObject As Long) As Long
Private Declare Function GetIconInfo Lib "user32" (ByVal hIcon As Long, piconinfo As ICONINFO) As Long
Private Declare Function GetObj Lib "gdi32" Alias "GetObjectA" (ByVal hObject As Long, ByVal nCount As Long, lpObject As Any) As Long
Private Declare Function CreatePatternBrush Lib "gdi32" (ByVal hBitmap As Long) As Long
Private Declare Function CreateCompatibleDC Lib "gdi32" (ByVal hdc As Long) As Long
Private Declare Function CreateCompatibleBitmap Lib "gdi32" (ByVal hdc As Long, ByVal nWidth As Long, ByVal nHeight As Long) As Long
Private Declare Function Delet
