求救：如何在C#实现播放音频文件？

[sunxuejun]

在C#中是否有这样的函数？

[wwwsq]

补充说明一下，需要 using System.Runtime.InteropServices; 否则DllImport编译通不过。

[sunxuejun]

谢谢bitsbird！
我是想把这个功能封装成一个class，在需要的时候调用，而不是用form来实现。

[wwwsq]

using ....
....

namespace Media
{

Class Sound
{
[DllImport("winmm.dll", EntryPoint="PlaySound")]
public static extern bool PlaySound(ref Byte snd, IntPtr hmod, uint fdwSound);

[DllImport("winmm.dll", EntryPoint="PlaySound")]
public static extern int PlaySound(string lpszName,int hModule,int dwFlags);

public enum PlayingFlags :uint
{
SND_SYNC = 0x00,
SND_ASYNC = 0x01,
SND_NODEFAULT = 0x02,
SND_MEMORY = 0x04,
SND_ALIAS = 0x010000,
SND_FILENAME = 0x020000,
SND_RESOURCE = 0x040004,
SND_ALIAS_ID = 0x0110000,
SND_ALIAS_START = 0,
SND_LOOP = 0x08,
SND_NOSTOP = 0x010,
SND_VALID = 0x01F,
SND_NOWAIT = 0x02000,
SND_PURGE = 0x40
}
}

}


这样可能你觉得比较好接受？

[milkbb]

internal class Helpers
{
[Flags]
public enum PlaySoundFlags : int
{
SND_SYNC = 0x0000, /* play synchronously (default) */
SND_ASYNC = 0x0001, /* play asynchronously */
SND_NODEFAULT = 0x0002, /* silence (!default) if sound not found */
SND_MEMORY = 0x0004, /* pszSound points to a memory file */
SND_LOOP = 0x0008, /* loop the sound until next sndPlaySound */
SND_NOSTOP = 0x0010, /* don't stop any currently playing sound */
SND_NOWAIT = 0x00002000, /* don't wait if the driver is busy */
SND_ALIAS = 0x00010000, /* name is a registry alias */
SND_ALIAS_ID = 0x00110000, /* alias is a predefined ID */
SND_FILENAME = 0x00020000, /* name is file name */
SND_RESOURCE = 0x00040004 /* name is resource name or atom */
}

[DllImport("winmm.dll")]
public static extern bool PlaySound( string szSound, IntPtr hMod, PlaySoundFlags flags );
}
public class Sound
{
public static void Play( string strFileName )
{
Helpers.PlaySound( strFileName, IntPtr.Zero, Helpers.PlaySoundFlags.SND_FILENAME | Helpers.PlaySoundFlags.SND_ASYNC );
}
}
然后这样调用：
Sound.Play("文件名");

常查查msdn，大部分东西都可以找到的的。

[sunxuejun]

谢谢wwwsq！

[bitsbird]

public class Form1 : System.Windows.Forms.Form
{
double shu;
double temps1;
double temps2;
double jg;
double save;
double zf;
string js;
bool gl;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.Button button5;
private System.Windows.Forms.Button button6;
private System.Windows.Forms.Button button7;
private System.Windows.Forms.Button button8;
private System.Windows.Forms.Button button9;
private System.Windows.Forms.Button button10;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button11;
private System.Windows.Forms.Button button12;
private System.Windows.Forms.Button button13;
private System.Windows.Forms.Button button14;
private System.Windows.Forms.Button button15;
private System.Windows.Forms.Button button16;
private System.Windows.Forms.Button button17;
private System.Windows.Forms.Button button18;
private System.Windows.Forms.Button button19;
private System.Windows.Forms.Button button20;
private System.Windows.Forms.Button button21;
private System.Windows.Forms.Button button22;
private System.Windows.Forms.Button button23;

[DllImport("winmm.dll", EntryPoint="PlaySound")]
public static extern bool PlaySound(ref Byte snd, IntPtr hmod, uint fdwSound);

[DllImport("winmm.dll", EntryPoint="PlaySound")]
public static extern int PlaySound(string lpszName,int hModule,int dwFlags);

public enum PlayingFlags :uint
{
SND_SYNC = 0x00,
SND_ASYNC = 0x01,
SND_NODEFAULT = 0x02,
SND_MEMORY = 0x04,
SND_ALIAS = 0x010000,
SND_FILENAME = 0x020000,
SND_RESOURCE = 0x040004,
SND_ALIAS_ID = 0x0110000,
SND_ALIAS_START = 0,
SND_LOOP = 0x08,
SND_NOSTOP = 0x010,
SND_VALID = 0x01F,
SND_NOWAIT = 0x02000,
SND_PURGE = 0x40
}
...................................................省略
private void button1_Click(object sender, System.EventArgs e)
{
Form1.PlaySound(filename.wav,0,(int)Form1.PlayingFlags.SND_SYNC);
Button btn=(Button) sender;
if (gl)
{
textBox1.Text=btn.Text;
gl=false;
}
else if (textBox1.Text=="0")
{
textBox1.Text=btn.Text;
gl=false;
}
else
{
textBox1.Text=textBox1.Text+btn.Text;
gl=false;
}
shu = Convert.ToDouble(textBox1.Text);
}

[lengfeng8866]

收藏一下，虽然是老话题吧。。。