設(shè)已經(jīng)在菜單編輯器中設(shè)計(jì)了窗體的快捷菜單,某頂級(jí)菜單為a1,且取消其“可見(jiàn)”屬性。運(yùn)行時(shí),哪個(gè)事件
設(shè)已經(jīng)在菜單編輯器中設(shè)計(jì)了窗體的快捷菜單,某頂級(jí)菜單為a1,且取消其“可見(jiàn)”屬性。運(yùn)行時(shí),哪個(gè)事件過(guò)程可以使快捷菜單的菜單項(xiàng)響應(yīng)鼠標(biāo)左鍵單擊和右健單擊的事件過(guò)程是
A.Private Sub Form_MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single) If Button=2 Then PopupMenu a1,2 End Sub
B.Private Sub Form_MouseDown(ButtonAsInteger,ShiftAsInteger,X As Single,Y As Single) PopupMenu a1,0 End Sub
C.Private Sub Form_Mouse Down(Button As Integer,Shift As Integer,X As Single,Y As Single) PopupMenu a1 End Sub
D.Private Sub Form_MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single) If(Button=vbLetfButton) Or (Button=vbRightButton) Then PopupMenu a1 End Sub
正確答案:C解析:MouseDown事件用來(lái)響應(yīng)鼠標(biāo)單擊,其中Button的參數(shù)用來(lái)確認(rèn)鼠標(biāo)按鈕(1:左鍵;2:右鍵),PopupMenu方法用以在指定坐標(biāo)位置顯示彈出式菜單,語(yǔ)法如下:[對(duì)象].PopupMenu菜單名,標(biāo)志,x,y。其中x,y提供菜單顯示位置,標(biāo)志指定快捷菜單的行為。
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