Ok,no sound in this example: why?

Question

using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Runtime.InteropServices; namespace FreddyKrugherHomage { ///

/// Descrizione di riepilogo per Form1. ///

public class Freddy : System.Windows.Forms.Form { private System.Windows.Forms.PictureBox pictureBox1; private System.Windows.Forms.Timer timer1; private System.Windows.Forms.Label lblDataOra; private System.ComponentModel.IContainer components; private System.Windows.Forms.Panel pnlEMI; private System.Windows.Forms.Timer timer2; public static int count = 1; static int dx = 4; static int dy = 4; static Size dimensione; const string FILE_NAME = "\\img\\Profondo rosso.wav"; public Freddy() { // // Necessario per il supporto di Progettazione Windows Form // InitializeComponent(); // // TODO: aggiungere il codice del costruttore dopo la chiamata a InitializeComponent // } ///

/// Pulire le risorse in uso. ///

protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Codice generato da Progettazione Windows Form ///

/// Metodo necessario per il supporto della finestra di progettazione. Non modificare /// il contenuto del metodo con l'editor di codice. ///

private void InitializeComponent() { this.components = new System.ComponentModel.Container(); System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Freddy)); this.pictureBox1 = new System.Windows.Forms.PictureBox(); this.timer1 = new System.Windows.Forms.Timer(this.components); this.lblDataOra = new System.Windows.Forms.Label(); this.pnlEMI = new System.Windows.Forms.Panel(); this.timer2 = new System.Windows.Forms.Timer(this.components); this.SuspendLayout(); // // pictureBox1 // this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image"))); this.pictureBox1.Location = new System.Drawing.Point(0, 0); this.pictureBox1.Name = "pictureBox1"; this.pictureBox1.Size = new System.Drawing.Size(752, 360); this.pictureBox1.TabIndex = 0; this.pictureBox1.TabStop = false; this.pictureBox1.Click += new System.EventHandler(this.pictureBox1_Click); this.pictureBox1.DoubleClick += new System.EventHandler(this.pictureBox1_DoubleClick); // // timer1 // this.timer1.Enabled = true; this.timer1.Interval = 250; this.timer1.Tick += new System.EventHandler(this.timer1_Tick); // // lblDataOra // this.lblDataOra.BackColor = System.Drawing.Color.Transparent; this.lblDataOra.Font = new System.Drawing.Font("Tahoma", 10.2F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0))); this.lblDataOra.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(0)), ((System.Byte)(0))); this.lblDataOra.Location = new System.Drawing.Point(560, 16); this.lblDataOra.Name = "lblDataOra"; this.lblDataOra.Size = new System.Drawing.Size(128, 40); this.lblDataOra.TabIndex = 1; this.lblDataOra.Text = "label1"; this.lblDataOra.TextAlign = System.Drawing.ContentAlignment.MiddleCenter; // // pnlEMI // this.pnlEMI.BackColor = System.Drawing.Color.Transparent; this.pnlEMI.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("pnlEMI.BackgroundImage"))); this.pnlEMI.Location = new System.Drawing.Point(280, 72); this.pnlEMI.Name = "pnlEMI"; this.pnlEMI.Size = new System.Drawing.Size(320, 136); this.pnlEMI.TabIndex = 2; this.pnlEMI.Visible = false; // // timer2 // this.timer2.Tick += new System.EventHandler(this.timer2_Tick); // // Freddy // this.AutoScaleBaseSize = new System.Drawing.Size(6, 15); this.BackColor = System.Drawing.SystemColors.WindowFrame; this.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("$this.BackgroundImage"))); this.ClientSize = new System.Drawing.Size(696, 336); this.Controls.Add(this.pnlEMI); this.Controls.Add(this.lblDataOra); this.Controls.Add(this.pictureBox1); this.Cursor = System.Windows.Forms.Cursors.Hand; this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; this.MaximizeBox = false; this.MinimizeBox = false; this.Name = "Freddy"; this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "Form1"; this.Load += new System.EventHandler(this.Freddy_Load); this.ResumeLayout(false); } #endregion ///

/// Il punto di ingresso principale dell'applicazione. ///

[STAThread] static void Main() { Application.Run(new Freddy()); } private void Freddy_Load(object sender, System.EventArgs e) { dimensione = this.Size; if(!Sound.Play(FILE_NAME)) Application.Exit(); } private void pictureBox1_Click(object sender, System.EventArgs e) { timer2.Enabled = !timer2.Enabled ; pnlEMI.Visible = !pnlEMI.Visible; } private void pictureBox1_DoubleClick(object sender, System.EventArgs e) { Application.Exit(); } private void timer1_Tick(object sender, System.EventArgs e) { string oraEcc; System.DateTime oggiEora = DateTime.Today; oraEcc = oggiEora.Date.ToString(); oraEcc += oggiEora.Hour.ToString(); //n?? non va lblDataOra.Text = oraEcc; string img; img = "img\\" + Freddy.count.ToString() +".jpg"; this.pictureBox1.Image = Image.FromFile(img); Freddy.count++; if(Freddy.count == 36) Freddy.count = 1; //max immagini 36 img = ""; } private void timer2_Tick(object sender, System.EventArgs e) { pnlEMI.Left +=Freddy.dx; pnlEMI.Top +=Freddy.dy; if(pnlEMI.Location.X + pnlEMI.Size.Width> Freddy.dimensione.Width || pnlEMI.Location.X < 0 ) Freddy.dx = -Freddy.dx; if(pnlEMI.Location.Y + pnlEMI.Size.Height > Freddy.dimensione.Height || pnlEMI.Location.Y < 0 ) Freddy.dy = -Freddy.dy; } } 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")] public static extern bool PlaySound( string szSound, IntPtr hMod, PlaySoundFlags flags ); } public class Sound { public static bool Play( string strFileName ) //+vedi che è statica... { return Helpers.PlaySound( strFileName, IntPtr.Zero, Helpers.PlaySoundFlags.SND_FILENAME | Helpers.PlaySoundFlags.SND_LOOP | Helpers.PlaySoundFlags.SND_ASYNC ); } } }