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<TD class="tt2" bgcolor="#F5F8F8" width="84%"><center><B><FONT style="FONT-SIZE: 16.5pt" COLOR="#FF6666" FACE="楷體_GB2312">檢查驅動器是否就緒</FONT></B></center>
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<p class="tt2"> 下面這個函數可以顯示是否就緒。<br>
<br>
function DiskInDrive(Drive: Char): Boolean;<br>
var ErrorMode: word;<br>
begin<br>
{ make it upper case } <br>
if Drive in ['a'..'z'] then Dec(Drive, $20);<br>
{ make sure it's a letter }<br>
if not (Drive in ['A'..'Z']) then<br>
raise EConvertError.Create('Not a valid drive ID');<br>
{ turn off critical errors }<br>
ErrorMode := SetErrorMode(SEM_FailCriticalErrors);<br>
try<br>
{ drive 1 = a, 2 = b, 3 = c, etc. }<br>
if DiskSize(Ord(Drive) - $40) = -1 then<br>
Result := False<br>
else<br>
Result := True;<br>
finally<br>
{ restore old error mode }<br>
SetErrorMode(ErrorMode);<br>
end;<br>
end; </p>
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