SystemInformation.MouseSpeed Property

public:
 static property int MouseSpeed { int get(); };

public static int MouseSpeed { get; }

static member MouseSpeed : int

Public Shared ReadOnly Property MouseSpeed As Integer

Property Value

A mouse speed value between 1 (slowest) and 20 (fastest).

Examples

The following code example lists all properties of the SystemInformation class in a ListBox and displays the current value of the property in a TextBox when a list item selected.

#using <System.Windows.Forms.dll>
#using <System.Drawing.dll>
#using <System.dll>

using namespace System;
using namespace System::Collections;
using namespace System::ComponentModel;
using namespace System::Drawing;
using namespace System::Reflection;
using namespace System::Windows::Forms;
public ref class SystemInfoBrowserForm: public System::Windows::Forms::Form
{
private:
 System::Windows::Forms::ListBox^ listBox1;
 System::Windows::Forms::TextBox^ textBox1;

public:
 SystemInfoBrowserForm()
 {
 this->SuspendLayout();
 InitForm();
 
 // Add each property of the SystemInformation class to the list box.
 Type^ t = System::Windows::Forms::SystemInformation::typeid;
 array<PropertyInfo^>^pi = t->GetProperties();
 for ( int i = 0; i < pi->Length; i++ )
 listBox1->Items->Add( pi[ i ]->Name );
 textBox1->Text = String::Format( "The SystemInformation class has {0} properties.\r\n", pi->Length );
 
 // Configure the list item selected handler for the list box to invoke a 
 // method that displays the value of each property.
 listBox1->SelectedIndexChanged += gcnew EventHandler( this, &SystemInfoBrowserForm::listBox1_SelectedIndexChanged );
 this->ResumeLayout( false );
 }


private:
 void listBox1_SelectedIndexChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
 {
 
 // Return if no list item is selected.
 if ( listBox1->SelectedIndex == -1 )
 return;

 
 // Get the property name from the list item.
 String^ propname = listBox1->Text;
 if ( propname->Equals( "PowerStatus" ) )
 {
 
 // Cycle and display the values of each property of the PowerStatus property.
 textBox1->Text = String::Concat( textBox1->Text, "\r\nThe value of the PowerStatus property is:" );
 Type^ t = System::Windows::Forms::PowerStatus::typeid;
 array<PropertyInfo^>^pi = t->GetProperties();
 for ( int i = 0; i < pi->Length; i++ )
 {
 Object^ propval = pi[ i ]->GetValue( SystemInformation::PowerStatus, nullptr );
 textBox1->Text = String::Format( "{0}\r\n PowerStatus.{1} is: {2}", textBox1->Text, pi[ i ]->Name, propval );

 }
 }
 else
 {
 
 // Display the value of the selected property of the SystemInformation type.
 Type^ t = System::Windows::Forms::SystemInformation::typeid;
 array<PropertyInfo^>^pi = t->GetProperties();
 PropertyInfo^ prop = nullptr;
 for ( int i = 0; i < pi->Length; i++ )
 if ( pi[ i ]->Name == propname )
 {
 prop = pi[ i ];
 break;
 }
 Object^ propval = prop->GetValue( nullptr, nullptr );
 textBox1->Text = String::Format( "{0}\r\nThe value of the {1} property is: {2}", textBox1->Text, propname, propval );
 }
 }

 void InitForm()
 {
 
 // Initialize the form settings
 this->listBox1 = gcnew System::Windows::Forms::ListBox;
 this->textBox1 = gcnew System::Windows::Forms::TextBox;
 this->listBox1->Anchor = (System::Windows::Forms::AnchorStyles)(System::Windows::Forms::AnchorStyles::Top | System::Windows::Forms::AnchorStyles::Bottom | System::Windows::Forms::AnchorStyles::Left | System::Windows::Forms::AnchorStyles::Right);
 this->listBox1->Location = System::Drawing::Point( 8, 16 );
 this->listBox1->Size = System::Drawing::Size( 172, 496 );
 this->listBox1->TabIndex = 0;
 this->textBox1->Anchor = (System::Windows::Forms::AnchorStyles)(System::Windows::Forms::AnchorStyles::Top | System::Windows::Forms::AnchorStyles::Bottom | System::Windows::Forms::AnchorStyles::Right);
 this->textBox1->Location = System::Drawing::Point( 188, 16 );
 this->textBox1->Multiline = true;
 this->textBox1->ScrollBars = System::Windows::Forms::ScrollBars::Vertical;
 this->textBox1->Size = System::Drawing::Size( 420, 496 );
 this->textBox1->TabIndex = 1;
 this->ClientSize = System::Drawing::Size( 616, 525 );
 this->Controls->Add( this->textBox1 );
 this->Controls->Add( this->listBox1 );
 this->Text = "Select a SystemInformation property to get the value of";
 }

};


[STAThread]
int main()
{
 Application::Run( gcnew SystemInfoBrowserForm );
}

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Reflection;
using System.Windows.Forms;

namespace SystemInfoBrowser
{
 public class SystemInfoBrowserForm : System.Windows.Forms.Form
 {
 private System.Windows.Forms.ListBox listBox1;
 private System.Windows.Forms.TextBox textBox1; 
 
 public SystemInfoBrowserForm()
 {
 this.SuspendLayout();
 InitForm();
 
 // Add each property of the SystemInformation class to the list box.
 Type t = typeof(System.Windows.Forms.SystemInformation); 
 PropertyInfo[] pi = t.GetProperties(); 
 for( int i=0; i<pi.Length; i++ )
 listBox1.Items.Add( pi[i].Name ); 
 textBox1.Text = "The SystemInformation class has "+pi.Length.ToString()+" properties.\r\n";

 // Configure the list item selected handler for the list box to invoke a 
 // method that displays the value of each property.
 listBox1.SelectedIndexChanged += new EventHandler(listBox1_SelectedIndexChanged);
 this.ResumeLayout(false);
 }
 
 private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
 {
 // Return if no list item is selected.
 if( listBox1.SelectedIndex == -1 ) return;
 // Get the property name from the list item.
 string propname = listBox1.Text;
 
 if( propname == "PowerStatus" )
 {
 // Cycle and display the values of each property of the PowerStatus property.
 textBox1.Text += "\r\nThe value of the PowerStatus property is:"; 
 Type t = typeof(System.Windows.Forms.PowerStatus);
 PropertyInfo[] pi = t.GetProperties(); 
 for( int i=0; i<pi.Length; i++ )
 {
 object propval = pi[i].GetValue(SystemInformation.PowerStatus, null); 
 textBox1.Text += "\r\n PowerStatus."+pi[i].Name+" is: "+propval.ToString();
 }
 }
 else
 {
 // Display the value of the selected property of the SystemInformation type.
 Type t = typeof(System.Windows.Forms.SystemInformation);
 PropertyInfo[] pi = t.GetProperties(); 
 PropertyInfo prop = null;
 for( int i=0; i<pi.Length; i++ )
 if( pi[i].Name == propname )
 {
 prop = pi[i];
 break; 
 }
 object propval = prop.GetValue(null, null); 
 textBox1.Text += "\r\nThe value of the "+propname+" property is: "+propval.ToString();
 }
 }

 private void InitForm()
 {
 // Initialize the form settings
 this.listBox1 = new System.Windows.Forms.ListBox();
 this.textBox1 = new System.Windows.Forms.TextBox(); 
 this.listBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
 | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right)));
 this.listBox1.Location = new System.Drawing.Point(8, 16);
 this.listBox1.Size = new System.Drawing.Size(172, 496);
 this.listBox1.TabIndex = 0; 
 this.textBox1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
 | System.Windows.Forms.AnchorStyles.Right)));
 this.textBox1.Location = new System.Drawing.Point(188, 16);
 this.textBox1.Multiline = true;
 this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical; 
 this.textBox1.Size = new System.Drawing.Size(420, 496);
 this.textBox1.TabIndex = 1; 
 this.ClientSize = new System.Drawing.Size(616, 525); 
 this.Controls.Add(this.textBox1);
 this.Controls.Add(this.listBox1); 
 this.Text = "Select a SystemInformation property to get the value of"; 
 }

 [STAThread]
 static void Main() 
 {
 Application.Run(new SystemInfoBrowserForm());
 }
 }
}

Imports System.Collections
Imports System.ComponentModel
Imports System.Drawing
Imports System.Reflection
Imports System.Windows.Forms

Public Class SystemInfoBrowserForm
 Inherits System.Windows.Forms.Form
 
 Private listBox1 As System.Windows.Forms.ListBox
 Private textBox1 As System.Windows.Forms.TextBox 
 
 Public Sub New()
 Me.SuspendLayout()
 InitForm()
 
 ' Add each property of the SystemInformation class to the list box.
 Dim t As Type = GetType(System.Windows.Forms.SystemInformation)
 Dim pi As PropertyInfo() = t.GetProperties()
 Dim i As Integer
 For i = 0 To pi.Length - 1
 listBox1.Items.Add(pi(i).Name)
 Next i
 textBox1.Text = "The SystemInformation class has " + pi.Length.ToString() + " properties." + ControlChars.CrLf
 
 ' Configure the list item selected handler for the list box to invoke a 
 ' method that displays the value of each property.
 AddHandler listBox1.SelectedIndexChanged, AddressOf listBox1_SelectedIndexChanged
 
 Me.ResumeLayout(False)
 End Sub 
 
 Private Sub listBox1_SelectedIndexChanged(sender As Object, e As EventArgs)
 ' Return if no list item is selected.
 If listBox1.SelectedIndex = - 1 Then
 Return
 End If 
 ' Get the property name from the list item.
 Dim propname As String = listBox1.Text
 
 If propname = "PowerStatus" Then
 ' Cycle and display the values of each property of the PowerStatus property.
 textBox1.Text += ControlChars.CrLf + "The value of the PowerStatus property is:"
 Dim t As Type = GetType(System.Windows.Forms.PowerStatus)
 Dim pi As PropertyInfo() = t.GetProperties()
 Dim i As Integer
 For i = 0 To pi.Length - 1
 Dim propval As Object = pi(i).GetValue(SystemInformation.PowerStatus, Nothing)
 textBox1.Text += ControlChars.CrLf + " PowerStatus." + pi(i).Name + " is: " + propval.ToString()
 Next i
 Else
 ' Display the value of the selected property of the SystemInformation type.
 Dim t As Type = GetType(System.Windows.Forms.SystemInformation)
 Dim pi As PropertyInfo() = t.GetProperties()
 Dim prop As PropertyInfo = Nothing
 Dim i As Integer
 For i = 0 To pi.Length - 1
 If pi(i).Name = propname Then
 prop = pi(i)
 Exit For
 End If
 Next i
 Dim propval As Object = prop.GetValue(Nothing, Nothing)
 textBox1.Text += ControlChars.CrLf + "The value of the " + propname + " property is: " + propval.ToString()
 End If
 End Sub 
 
 Private Sub InitForm()
 ' Initialize the form settings
 Me.listBox1 = New System.Windows.Forms.ListBox()
 Me.textBox1 = New System.Windows.Forms.TextBox()
 Me.listBox1.Anchor = CType(System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Left Or System.Windows.Forms.AnchorStyles.Right, System.Windows.Forms.AnchorStyles)
 Me.listBox1.Location = New System.Drawing.Point(8, 16)
 Me.listBox1.Size = New System.Drawing.Size(172, 496)
 Me.listBox1.TabIndex = 0
 Me.textBox1.Anchor = CType(System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right, System.Windows.Forms.AnchorStyles)
 Me.textBox1.Location = New System.Drawing.Point(188, 16)
 Me.textBox1.Multiline = True
 Me.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical
 Me.textBox1.Size = New System.Drawing.Size(420, 496)
 Me.textBox1.TabIndex = 1
 Me.ClientSize = New System.Drawing.Size(616, 525)
 Me.Controls.Add(Me.textBox1)
 Me.Controls.Add(Me.listBox1)
 Me.Text = "Select a SystemInformation property to get the value of"
 End Sub
 
 <STAThread()> _
 Shared Sub Main()
 Application.Run(New SystemInfoBrowserForm())
 End Sub

End Class

Remarks

The mouse speed determines how far the pointer will move based on the distance the mouse moves. The value of this property ranges between 1 (slowest) and 20 (fastest). A value of 10 is the default. The value can be set by an end user using the mouse control panel application or by an application using the SystemParametersInfo function of the Platform SDK.

See also

• SystemParameter