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<hr><p align="left"><small>发信人: strayli (stray), 信区: Delphi <br>
标 题: 如何检查一个驱动器是否就绪(转) <br>
发信站: BBS 水木清华站 (Fri Oct 9 21:14:10 1998) <br>
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如何检查一个驱动器是否就绪？我是说不出现错误信息？ <br>
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来自：tqz 时间：98-10-7 09:10:30 下午 <br>
下面这个函数可以显示是否就绪。(From Borland) <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; <br>
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-- <br>
※ 来源:·BBS 水木清华站 bbs.net.tsinghua.edu.cn·[FROM: 159.226.8.18] <br>
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