c c 的声音，C声音播放
c c 的声音，C声音播放声明[DllImport("winmm.dll")] private static extern uint mciSendString(string command StringBuilder returnValue int returnLength IntPtr winHandle);基本功能实现注意temp_alias 这个是对应别名
摘要
MCISendString 播放MP3
mci(Media Control Interface，媒体控制接口)函数中，有些只适用于一种接口方式，有些则两种接口都可以用。mciSendString只适用于命令串接口方式（命令串中不区分大小写）。
正文
声明
[DllImport("winmm.dll")]
private static extern uint mciSendString(string command StringBuilder returnValue int returnLength IntPtr winHandle);
基本功能实现
注意temp_alias 这个是对应别名
/// <summary>
/// 播放
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnPlay_Click(object sender EventArgs e)
{
StringBuilder path = new StringBuilder();
path.Append(@"D:\MyProject\白泽\Bz.Platform\wavplay\a.mp3");
mciSendString(@"close temp_alias" null 0 IntPtr.Zero);
mciSendString(@"open """ path @""" alias temp_alias" null 0 IntPtr.Zero);
mciSendString("play temp_alias repeat" null 0 IntPtr.Zero);
}
/// <summary>
/// 停止
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnStop_Click(object sender EventArgs e)
{
mciSendString("stop temp_alias" new StringBuilder() 0 IntPtr.Zero);
}
/// <summary>
/// 暂停
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnPause_Click(object sender EventArgs e)
{
mciSendString("pause temp_alias" new StringBuilder() 0 IntPtr.Zero);
}
/// <summary>
/// 继续
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnResume_Click(object sender EventArgs e)
{
mciSendString("resume temp_alias" new StringBuilder() 0 IntPtr.Zero);
}
/// <summary>
/// 取得音频长度
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnLength_Click(object sender EventArgs e)
{
StringBuilder lengthBuf = new StringBuilder(32);
mciSendString("status temp_alias length" lengthBuf lengthBuf.Capacity IntPtr.Zero);
long len = long.Parse(lengthBuf.ToString());
MessageBox.Show((len / 1000.0f/60.0f).ToString());
}
//调整声音1-1000
private void tbVoice_Scroll(object sender EventArgs e)
{
StringBuilder sb = new StringBuilder(32);
sb.Append(tbVoice.Value.ToString());
mciSendString("setaudio temp_alias volume to " tbVoice.Value.ToString() sb sb.Capacity IntPtr.Zero);
}
/// <summary>
/// 取得当前位置
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnCurrent_Click(object sender EventArgs e)
{
StringBuilder lengthBuf = new StringBuilder(32);
mciSendString("status temp_alias position" lengthBuf lengthBuf.Capacity IntPtr.Zero);
long len = long.Parse(lengthBuf.ToString());
MessageBox.Show((len / 1000.0f / 60.0f).ToString());
}
