我需要从Visual Basic 6应用程序播放声音(.WAV文件).但是,该PC配备了多个声卡,用户应该可以使用它.
I need to play a sound (.WAV file) from a Visual Basic 6 application. However, the PC is equipped with multiple sound cards and the user should be able to use it.
到目前为止,支持默认的声卡,我将播放这样的声音:
Up till now a default sound card was supported and I would play a sound like this:
CommandString = "Open " & Chr$(34) & mstrFilename & Chr$(34) & " type waveaudio alias MediaFile" mciSendString CommandString, vbNullString, 0, 0& If PlayFromPercent <= 0 Then CommandString = "play MediaFile" lngRetcode = mciSendString(CommandString, vbNullString, 0, 0&) Else CommandString = "play MediaFile from " & CLng(lngLength * (PlayFromPercent / 100)) lngRetcode = mciSendString(CommandString, vbNullString, 0, 0&) End If有没有办法针对特定的声卡修改此代码,或者我可以采用其他方法(例如DirectX或商业的3rd Party Library)?
Is there a way to adapt this code for a specific sound card or is there a different approach I could take (e.g. DirectX or a commercial 3rd Party Library)?
奖金,如果该方法支持从特定位置播放文件(如您所见,上面的代码支持该文件)
Bonus, if the approach supports playing the file from a specific position (as you can see, the code above supports it)
推荐答案这可能有效;调用 mciSendCommand()和 MCI_SET & MCI_WAVE_SET_PARMS 将 wOutput 设置为所需的播放设备的ID.
This may work; call mciSendCommand() with MCI_SET & MCI_WAVE_SET_PARMS setting wOutput to the desired playback device's ID.
- 您可以通过 mciGetDeviceID("waveaudio") 获取 mciSendCommand()的 IDDevice
- 尚不能100%清楚地知道 wOutput 想要什么,它的ID可能与 waveOutGetDevCaps() 返回的ID相同
- You can get IDDevice for mciSendCommand() via mciGetDeviceID("waveaudio")
- Its not 100% clear what wOutput wants, its probably the same ID as returned by waveOutGetDevCaps()
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如何通过特定的声卡播放音频?
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