VB6 - 呢句野做緊乜

2010-06-05 7:24 pm

Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vkey As Long) As Integer
Private Function MyHotKey(vKeyCode) As Boolean
MyHotKey = (GetAsyncKeyState(vKeyCode) < 0)
End Function

紅字呢句野既「<」其實係做緊乜

更新1:

介唔介意我問多個問題 :: 用返呢舊野做例 If MyHotKey(vbKeyA) then (......) 呢一個If 之中無運算子只係得MyHotKey(vbKeyA) 係咪講緊 Boolean = True 略左=True 呢part 默認左??

回答 (1)

港男

2010-06-05 7:36 pm

✔ 最佳答案

因為Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vkey As
Long) As Integer
所以GetAsyncKeyState(vKeyCode)會得到Integer
“<”系比較個Integer是否小於0
比較的結果是 Boolean, 符合Private Function MyHotKey(vKeyCode) As Boolean

唔明可以再問^_^

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收錄日期: 2021-04-25 23:57:12
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