VB2005環境中能實現ComboBox自動下拉嗎？该怎么处理

VB2005環境中能實現ComboBox自動下拉嗎？
在VB6中通過API的方法是可以實現ComboBox自動下拉的
在2005中不知能否實現？(最好不用API)

------解决方案--------------------
VB.NET声明API有点不一样了，直接把代码弄过来肯定有问题的
试试这样

Private Const CB_SHOWDROPDOWN As Int32 = &H14F

Private Declare Function SendMessage Lib "user32.dll " Alias "SendMessageA " (ByVal hwnd As Int32, ByVal wMsg As Int32, ByVal wParam As Int32, ByVal lParam As Int32) As Int32

ret = SendMessage(Combo1.Handle, CB_SHOWDROPDOWN, 1, ByVal 0&)
------解决方案--------------------
VB.NET

Me.comboBox.DroppedDown=True