BOOL Beep(如何用？）(50分)

O

ourcode

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• 2002-07-29

• #1

BOOL Beep(<br><br>&nbsp; &nbsp; DWORD dwFreq, // sound frequency, in hertz <br>&nbsp; &nbsp; DWORD dwDuration // sound duration, in milliseconds <br>&nbsp; &nbsp;<br><br><br>用这个时请问要包含什么头文件？

 

L

lb_icesea79

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• 2002-07-29

• #2

begin<br>&nbsp; Beep;<br>end;

 

K

Kang

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• 2002-07-29

• #3

uses Windows<br><br>使用的时候若跟其他单元的冲突(如SysUtils等),可以这样用<br>&nbsp;<br>Windows.Beep(...,...);

 

T

twos

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• 2002-07-29

• #4

对，把单元名加在前面，以确定要因为那个函数<br>

 

O

ourcode

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• 2002-07-29

• #5

接受答案了.