刚学delphi,播放声音书上只讲到Mediaplayer,现在做一程序,需要不定时播放两种声音,我是这么做的:Mediaplayer属性autoopen设为true;
程序:
Mediaplayer1.autoopen=true;
Mediaplayer1.filename:='d:\ring.wav';
Mediaplayer1.play;
Mediaplayer1.autoopen:=false;不知道哪里错了,改变filename的时候必须重新设置autoopen对吗?我把这四句都快排序了,怎么放先后都是错误,请问我该怎么做,帮忙说一下原因~~谢谢了。在CSDN找到这么一段程序
playySound('d:\die.wav', 0, SND_ASYNC or SND_FILENAME or SND_NODEFAULT);
居然用上以后没任何问题,相信用的资源也少了很多吧~~~。可惜我不太懂,请帮忙讲讲里面的参数,还有什么时候用,有多少功能~~谢谢了,如果比较麻烦的话请告诉我,我加分。我需要循环播放近两分钟的MP3文件,请问playsound怎么使用?谢谢
程序:
Mediaplayer1.autoopen=true;
Mediaplayer1.filename:='d:\ring.wav';
Mediaplayer1.play;
Mediaplayer1.autoopen:=false;不知道哪里错了,改变filename的时候必须重新设置autoopen对吗?我把这四句都快排序了,怎么放先后都是错误,请问我该怎么做,帮忙说一下原因~~谢谢了。在CSDN找到这么一段程序
playySound('d:\die.wav', 0, SND_ASYNC or SND_FILENAME or SND_NODEFAULT);
居然用上以后没任何问题,相信用的资源也少了很多吧~~~。可惜我不太懂,请帮忙讲讲里面的参数,还有什么时候用,有多少功能~~谢谢了,如果比较麻烦的话请告诉我,我加分。我需要循环播放近两分钟的MP3文件,请问playsound怎么使用?谢谢
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form1.MediaPlayer1.Open;
form1.MediaPlayer1.Play;
application.ShowMainForm:=false;
end;procedure TForm1.Timer1Timer(Sender: TObject);
begin
if form1.MediaPlayer1.Position=form1.MediaPlayer1.Length then
begin
form1.MediaPlayer1.Play;
end;
end;//就可以实现循环播放MP3了,
请帮忙讲讲里面的参数,还有什么时候用,有多少功能~~怎么实现播放当前目录下的文件
HMODULE hmod,
DWORD fdwSound
);
ParameterspszSoundA string that specifies the sound to play. If this parameter is NULL, any currently playing waveform sound is stopped. To stop a non-waveform sound, specify SND_PURGE in the fdwSound parameter.
Three flags in fdwSound (SND_ALIAS, SND_FILENAME, and SND_RESOURCE) determine whether the name is interpreted as an alias for a system event, a filename, or a resource identifier. If none of these flags are specified, PlaySound searches the registry or the WIN.INI file for an association with the specified sound name. If an association is found, the sound event is played. If no association is found in the registry, the name is interpreted as a filename.hmodHandle of the executable file that contains the resource to be loaded. This parameter must be NULL unless SND_RESOURCE is specified in fdwSound.fdwSoundFlags for playing the sound. The following values are defined:SND_APPLICATIONThe sound is played using an application-specific association.SND_ALIASThe pszSound parameter is a system-event alias in the registry or the WIN.INI file. Do not use with either SND_FILENAME or SND_RESOURCE.SND_ALIAS_IDThe pszSound parameter is a predefined sound identifier.SND_ASYNCThe sound is played asynchronously and PlaySound returns immediately after beginning the sound. To terminate an asynchronously played waveform sound, call PlaySound with pszSound set to NULL.SND_FILENAMEThe pszSound parameter is a filename.SND_LOOPThe sound plays repeatedly until PlaySound is called again with the pszSound parameter set to NULL. You must also specify the SND_ASYNC flag to indicate an asynchronous sound event.SND_MEMORYA sound event's file is loaded in RAM. The parameter specified by pszSound must point to an image of a sound in memory.SND_NODEFAULTNo default sound event is used. If the sound cannot be found, PlaySound returns silently without playing the default sound.SND_NOSTOPThe specified sound event will yield to another sound event that is already playing. If a sound cannot be played because the resource needed to generate that sound is busy playing another sound, the function immediately returns FALSE without playing the requested sound.
If this flag is not specified, PlaySound attempts to stop the currently playing sound so that the device can be used to play the new sound.SND_NOWAITIf the driver is busy, return immediately without playing the sound.SND_PURGESounds are to be stopped for the calling task. If pszSound is not NULL, all instances of the specified sound are stopped. If pszSound is NULL, all sounds that are playing on behalf of the calling task are stopped.
You must also specify the instance handle to stop SND_RESOURCE events.SND_RESOURCEThe pszSound parameter is a resource identifier; hmod must identify the instance that contains the resource.SND_SYNCSynchronous playback of a sound event. PlaySound returns after the sound event completes. Return ValuesReturns TRUE if successful or FALSE otherwise.ResThe sound specified by pszSound must fit into available physical memory and be playable by an installed waveform-audio device driver. PlaySound searches the following directories for sound files: the current directory; the Windows directory; the Windows system directory; directories listed in the PATH environment variable; and the list of directories mapped in a network. For more information about the directory search order, see the documentation for the OpenFile function.If it cannot find the specified sound, PlaySound uses the default system event sound entry instead. If the function can find neither the system default entry nor the default sound, it makes no sound and returns FALSE.