强制combobox自动弹出下拉框代码,VB.Net代码库,德仔网

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【VB.Net】强制combobox自动弹出下拉框

作者:Dezai.CN / 发布于2013/6/18/ 2360


	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 Long

	
	SendMessage combobox1.hwnd, CB_SHOWDROPDOWN, 1, 0 '强制弹出combobox1下拉菜单

　　

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