GetKeyState |
VB聲明 |
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Declare Function GetKeyState Lib "user32" Alias "GetKeyState" (ByVal nVirtKey As Long) As Integer |
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說(shuō)明 |
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針對(duì)已處理過(guò)的按鍵,在最近一次輸入信息時(shí),判斷指定虛擬鍵的狀態(tài) |
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返回值 |
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Integer,如開(kāi)關(guān)鍵打開(kāi),則位0設(shè)為1(開(kāi)關(guān)鍵包括CapsLock, NumLock,ScrollLock);如某個(gè)鍵當(dāng)時(shí)正處于按下?tīng)顟B(tài),則位15為1;如已經(jīng)抬起,則為0 |
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參數(shù)表 |
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參數(shù) |
類(lèi)型及說(shuō)明 |
nVirtKey |
Long,欲測(cè)試的虛擬鍵鍵碼。對(duì)字母、數(shù)字字符(A-Z、a-z、0-9),用它們實(shí)際的ASCII值 |
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