SystemSounds in F#

To play a system sound in Visual F#, use the SystemSounds object. For a simple example on using the SystemSounds object, try the following:

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1. // Learn more about F# at http://fsharp.net  
2. //use the f# standard library  
3. open System  
4. //use media classes  
5. open System.Media  
6. //specify the memory location of the classes used in drawing objects  
7. //required to draw the listbox item text  
8. open System.Drawing  
9. //specify the location of the form class  
10. open System.Windows.Forms  
11. //creates a form and assign a "Play System Sounds" caption to it  
12. let soundform=new Form(Text="Play System Sounds",StartPosition=FormStartPosition.CenterScreen,AutoScaleMode=AutoScaleMode.Font)  
13. //creates a label and set its Text to “Count”  
14. let lbl=new Label(Text="System sounds:", Location=new System.Drawing.Point(20,10),AutoSize=true)  
15. //makes a listbox  
16. let soundlistbox=new ListBox(Sorted=true,Location=new System.Drawing.Point(20,30),FormattingEnabled=true)  
17. //adds an item to the listbox when the form is loaded  
18. soundform.Load.Add(fun items->  
19.      //adds the items and ignore the passed index position values  
20.                     soundlistbox.Items.Add("Asterisk")|>ignore  
21.                     soundlistbox.Items.Add("Beep")|>ignore  
22.                     soundlistbox.Items.Add("Exclaimation")|>ignore  
23.                     soundlistbox.Items.Add("Hand")|>ignore  
24.                     soundlistbox.Items.Add("Question")|>ignore)  
25. soundlistbox.Click.Add(fun playsound->  
26.                     if soundlistbox.SelectedIndex=0 then  
27.                         SystemSounds.Asterisk.Play()  
28.                         MessageBox.Show("Asterisk", "System Sounds", MessageBoxButtons.OK, MessageBoxIcon.Asterisk)|>ignore  
29.                     if soundlistbox.SelectedIndex=1 then  
30.                         SystemSounds.Beep.Play()  
31.                         MessageBox.Show("Beep", "System Sounds", MessageBoxButtons.OK)|>ignore  
32.                     if soundlistbox.SelectedIndex=2 then  
33.                         SystemSounds.Exclamation.Play()  
34.                         MessageBox.Show("Exclaimation", "System Sounds", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)|>ignore  
35.                     if soundlistbox.SelectedIndex=3 then  
36.                         SystemSounds.Hand.Play()  
37.                         MessageBox.Show("Hand", "System Sounds", MessageBoxButtons.OK, MessageBoxIcon.Hand)|>ignore  
38.                     if soundlistbox.SelectedIndex=4 then  
39.                        SystemSounds.Question.Play()  
40.                         MessageBox.Show("Question", "System Sounds", MessageBoxButtons.OK, MessageBoxIcon.Question)|>ignore)   
41.                                              
42. //displays the label to our form  
43. soundform.Controls.Add(lbl)        
44. //adds the listbox to our form      
45. soundform.Controls.Add(soundlistbox)             
46. soundform.Show()  
47. Application.Run(soundform)  

// Learn more about F# at http://fsharp.net
//use the f# standard library
open System
//use media classes
open System.Media
//specify the memory location of the classes used in drawing objects
//required to draw the listbox item text
open System.Drawing
//specify the location of the form class
open System.Windows.Forms
//creates a form and assign a "Play System Sounds" caption to it
let soundform=new Form(Text="Play System Sounds",StartPosition=FormStartPosition.CenterScreen,AutoScaleMode=AutoScaleMode.Font)
//creates a label and set its Text to “Count”
let lbl=new Label(Text="System sounds:", Location=new System.Drawing.Point(20,10),AutoSize=true)
//makes a listbox
let soundlistbox=new ListBox(Sorted=true,Location=new System.Drawing.Point(20,30),FormattingEnabled=true)
//adds an item to the listbox when the form is loaded
soundform.Load.Add(fun items->
     //adds the items and ignore the passed index position values
                    soundlistbox.Items.Add("Asterisk")|>ignore
                    soundlistbox.Items.Add("Beep")|>ignore
                    soundlistbox.Items.Add("Exclaimation")|>ignore
                    soundlistbox.Items.Add("Hand")|>ignore
                    soundlistbox.Items.Add("Question")|>ignore)
soundlistbox.Click.Add(fun playsound->
                    if soundlistbox.SelectedIndex=0 then
                        SystemSounds.Asterisk.Play()
                        MessageBox.Show("Asterisk", "System Sounds", MessageBoxButtons.OK, MessageBoxIcon.Asterisk)|>ignore
                    if soundlistbox.SelectedIndex=1 then
                        SystemSounds.Beep.Play()
                        MessageBox.Show("Beep", "System Sounds", MessageBoxButtons.OK)|>ignore
                    if soundlistbox.SelectedIndex=2 then
                        SystemSounds.Exclamation.Play()
                        MessageBox.Show("Exclaimation", "System Sounds", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)|>ignore
                    if soundlistbox.SelectedIndex=3 then
                        SystemSounds.Hand.Play()
                        MessageBox.Show("Hand", "System Sounds", MessageBoxButtons.OK, MessageBoxIcon.Hand)|>ignore
                    if soundlistbox.SelectedIndex=4 then
                       SystemSounds.Question.Play()
                        MessageBox.Show("Question", "System Sounds", MessageBoxButtons.OK, MessageBoxIcon.Question)|>ignore) 
                                           
//displays the label to our form
soundform.Controls.Add(lbl)      
//adds the listbox to our form    
soundform.Controls.Add(soundlistbox)           
soundform.Show()
Application.Run(soundform)

This will generate the following output: