Const CB_SHOWDROPDOWN = &H14F Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As LongPrivate Sub Form_Load() Combo1.AddItem "11111" Combo1.AddItem "22222" Combo1.AddItem "33333" Combo1.AddItem "44444" Combo1.AddItem "55555" Combo1.AddItem "66666" 'Form_Load 即自动下拉 Combo1 Dim nret As Long nret = SendMessage(Combo1.hwnd, CB_SHOWDROPDOWN, 1, ByVal 0&) End Sub
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As LongPrivate Sub Form_Load()
Combo1.AddItem "11111"
Combo1.AddItem "22222"
Combo1.AddItem "33333"
Combo1.AddItem "44444"
Combo1.AddItem "55555"
Combo1.AddItem "66666"
'Form_Load 即自动下拉 Combo1
Dim nret As Long
nret = SendMessage(Combo1.hwnd, CB_SHOWDROPDOWN, 1, ByVal 0&)
End Sub