使用以下单元
//调用方法： Bleep(bOK);
// Bleep(bOK1);
// Bleep(bOK2);
// Bleep(bOK3);
以及其它
do
Bleep (1109,100);可以达到你的要求
Unit BleepInt;
{ Version 4.2 }
{ Andy Preston - Apollo Developments, Swindon U.K. andy@apollod.freeserve.co.uk
HACKERS OF THE WORLD UNITE! HACKERS OF THE WORLD UNITE! HACKERS OF THE WORLD UNITE! HACKERS OF THE WORLD UNITE!
How to make your Delphi programs bleep like FRACTINT! See Demo1.pas/Demo1.dfm or Bleepint.htm for details
}
Interface
Type
TBleepType = (bOK, bInterrupt, bError,bSuccess,bOK2,bOK3, bHello);
Procedure ShutUp;
{ Added to help counter the effects ofdo
Bleep (Freq, -1).
If you are producing a tone, &
you want to stop withoutdo
ing another Bleep, call this procedure }
Proceduredo
Bleep (Freq : Word;
MSecs : Integer);
{ Duration of -1 means bleep until the next bleep sent, or ShutUp is called }
Procedure Bleep (BleepType : TBleepType);
Implementation
Uses
{$IFDEF WIN32} Windows, {$else
} WinProcs, {$ENDIF}
{$IFNDEF CONSOLE} Forms;
{$ENDIF} { Michl Ladislav suggested removing the Forms unit from 32-bit Console Apps, saving 130K }
{ -- --- -- --- -- --- -- --- -- --- -- --- -- --- Assembler Bits for Wind 3.x And '95 -- --- -- --- -- --- -- --- -- --- }
Procedure AsmShutUp;
{$IFDEF WIN32} Pascal;
{$ENDIF}
begin
Asm
In AL, $61 { Stop Bleeping }
And AL, $FC
Out $61, AL
end;
end;
Procedure AsmBeep (Freq : Word);
{$IFDEF WIN32} Pascal;
{$ENDIF}
Label
Skip;
begin
Asm
Push BX
In AL, $61
Mov BL, AL
And AL, 3
Jne Skip
Mov AL, BL
Or AL, 3
Out $61, AL
Mov AL, $B6
Out $43, AL
Skip: Mov AX, Freq
Out $42, AL
Mov AL, AH
Out $42, AL
Pop BX
end;
end;
{ -- --- -- --- -- --- -- --- -- --- -- --- -- --- Low Level Bits for Wind 3.x And '95 -- --- -- --- -- --- -- --- -- --- }
Procedure HardBleep (Freq : Word;
MSecs : Integer);
Var
{ Changed FirstTickCount from LongInt to DWord to counter P.Satyanarayana's Delphi 4 Warning - see below }
FirstTickCount : {$IFDEF WIN32} DWord {$else
} LongInt {$ENDIF};
begin
{ Michl Ladislav pointed out that having a delay when the bleep freq is out of range is a waste of 'stuff' so I've added
another begin
END }
If (Freq>=20) And (Freq<=5000) then
begin
AsmBeep (Word (1193181 Div LongInt(Freq)));
If MSecs>=0 then
begin
{ P.Satyanarayana Get's a warning under Delphi 4 here 'Comparing signed and unsigned types - widened both operands'
This should be cleared up by the fact that FirstTickCount is now a DWord under Win32 }
FirstTickCount:=GetTickCount;
{ Michl Ladislav suggested changing the old WHILEdo
to a REPEAT UNTIL so as to fit his modifications in easyer }
Repeat
{ Michl Ladislav suggested removing the Forms unit from 32-bit Console Apps, saving 130K }
{$IFNDEF CONSOLE} If MSecs>1000 then
Application.ProcessMessages;
{$ENDIF}
Until ((GetTickCount-FirstTickCount)>LongInt(MSecs));
AsmShutUp;
end;
end;
end;
{ -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- Procedures for you to use -- --- -- --- -- --- -- --- -- --- -- --- }
Procedure Bleep (BleepType : TBleepType);
var
i: integer;
begin
Case BleepType of
bOK: begin
do
Bleep (1047,100);
do
Bleep (1109,100);
do
Bleep (1175,100);
end;
bInterrupt: begin
do
Bleep (2093,100);
do
Bleep (1976,100);
do
Bleep (1857,100);
end;
bError: begin
do
Bleep (200,200);
do
Bleep (300,200);
do
Bleep (200,200);
end;
bSuccess: begin
do
Bleep (1047,50);
do
Bleep (1109,50);
do
Bleep (1175,50);
end;
bOK2: begin
do
Bleep (1175,100);
do
Bleep (1109,100);
do
Bleep (1047,100);
end;
bOK3: begin
do
Bleep (1109,100);
do
Bleep (1175,100);
do
Bleep (1047,100);
end;
bHello: begin
do
Bleep (609,100);
do
Bleep (775,100);
do
Bleep (647,100);
end;
end;
end;
{$IFDEF WIN32} Var SysWinNT : Boolean;
{$ENDIF}
Proceduredo
Bleep (Freq : Word;
MSecs : Integer);
begin
{$IFDEF WIN32} If SysWinNT then
Windows.Beep (Freq, MSecs) else
{$ENDIF}
HardBleep (Freq, MSecs);
end;
Procedure ShutUp;
begin
{$IFDEF WIN32} If SysWinNT then
Windows.Beep (1, 0) else
{$ENDIF}
AsmShutUp;
end;
{$IFDEF WIN32}
Procedure InitSysType;
Var
VersionInfo : TOSVersionInfo;
begin
VersionInfo.dwOSVersionInfoSize:=SizeOf (VersionInfo);
GetVersionEx (VersionInfo);
SysWinNt:=VersionInfo.dwPlatformID=VER_PLATFORM_WIN32_NT;
end;
Initialization
InitSysType;
{$ENDIF}
end.
这个单元其实在以前的delphi安装盘中就有
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