Proprietà SystemInformation.FontSmoothingType
Assembly: System.Windows.Forms (in system.windows.forms.dll)
La proprietà FontSmoothingType restituisce un valore che indica il tipo di smussatura dei caratteri attualmente attiva.
Nella tabella riportata di seguito viene indicato il significato dei valori restituiti da questa proprietà:
| Valore | Significato |
|---|---|
| 1 | Smussatura dei caratteri standard. |
| 2 | Smussatura dei caratteri ClearType. |
Nota |
|---|
| Questa proprietà è supportata solo in Windows XP e Windows Server 2003. |
Nell'esempio di codice riportato di seguito vengono elencate tutte le proprietà della classe SystemInformation in un oggetto ListBox e viene visualizzato il valore corrente della proprietà in un oggetto TextBox quando viene selezionato un elemento dell'elenco.
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()); } } }
package SystemInfoBrowser;
import System.*;
import System.Collections.*;
import System.ComponentModel.*;
import System.Drawing.*;
import System.Reflection.*;
import System.Windows.Forms.*;
public class SystemInfoBrowserForm extends 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 = System.Windows.Forms.SystemInformation.class.ToType();
PropertyInfo pi[] = t.GetProperties();
for (int i = 0; i < pi.length; i++) {
listBox1.get_Items().Add(pi[i].get_Name());
}
textBox1.set_Text("The SystemInformation class has "
+ ((Int32)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.add_SelectedIndexChanged(
new EventHandler(listBox1_SelectedIndexChanged));
this.ResumeLayout(false);
} //SystemInfoBrowserForm
private void listBox1_SelectedIndexChanged(Object sender, EventArgs e)
{
// Return if no list item is selected.
if (listBox1.get_SelectedIndex() == -1) {
return;
}
// Get the property name from the list item.
String propname = listBox1.get_Text();
if (propname.Equals("PowerStatus")) {
// Cycle and display the values of each property of the
// PowerStatus property.
textBox1.set_Text(textBox1.get_Text()
+ "\r\nThe value of the PowerStatus property is:");
Type t = System.Windows.Forms.PowerStatus.class.ToType();
PropertyInfo pi[] = t.GetProperties();
for (int i = 0; i < pi.length; i++) {
Object propval = pi[i].GetValue(
SystemInformation.get_PowerStatus(), null);
textBox1.set_Text(textBox1.get_Text()
+ "\r\n PowerStatus." + pi[i].get_Name()
+ " is: " + propval.ToString());
}
}
else {
// Display the value of the selected property of the
// SystemInformation type.
Type t = System.Windows.Forms.SystemInformation.class.ToType();
PropertyInfo pi[] = t.GetProperties();
PropertyInfo prop = null;
for (int i = 0; i < pi.length; i++) {
if (pi[i].get_Name().Equals(propname)) {
prop = pi[i];
break;
}
}
Object propval = prop.GetValue(null, null);
textBox1.set_Text(textBox1.get_Text() + "\r\nThe value of the "
+ propname + " property is: " + propval.ToString());
}
} //listBox1_SelectedIndexChanged
private void InitForm()
{
// Initialize the form settings
this.listBox1 = new System.Windows.Forms.ListBox();
this.textBox1 = new System.Windows.Forms.TextBox();
this.listBox1.set_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.set_Location(new System.Drawing.Point(8, 16));
this.listBox1.set_Size(new System.Drawing.Size(172, 496));
this.listBox1.set_TabIndex(0);
this.textBox1.set_Anchor((System.Windows.Forms.AnchorStyles)
(System.Windows.Forms.AnchorStyles.Top
| System.Windows.Forms.AnchorStyles.Bottom
| System.Windows.Forms.AnchorStyles.Right));
this.textBox1.set_Location(new System.Drawing.Point(188, 16));
this.textBox1.set_Multiline(true);
this.textBox1.set_ScrollBars(System.Windows.Forms.ScrollBars.Vertical);
this.textBox1.set_Size(new System.Drawing.Size(420, 496));
this.textBox1.set_TabIndex(1);
this.set_ClientSize(new System.Drawing.Size(616, 525));
this.get_Controls().Add(this.textBox1);
this.get_Controls().Add(this.listBox1);
this.set_Text("Select a SystemInformation property to get the value of");
} //InitForm
/** @attribute STAThread()
*/
public static void main(String[] args)
{
Application.Run(new SystemInfoBrowserForm());
} //main
} //SystemInfoBrowserForm
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile per Pocket PC, Windows Mobile per Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
.NET Framework non supporta tutte le versioni di ciascuna piattaforma. Per un elenco delle versioni supportate, vedere Requisiti di sistema.
Nota