Help Clase
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Encapsula el motor de HTML Help 1.0.
public ref class Helppublic ref class Help abstract sealedpublic class Helppublic static class Helptype Help = classPublic Class Help- Herencia
-
Help
Ejemplos
En el ejemplo de código siguiente se muestra un formulario que contiene tres botones que se pueden usar para interactuar con el archivo de ayuda Mspaint.chm. El botón Mostrar índice de ayuda muestra la pestaña Índice del archivo de Ayuda. El botón Mostrar ayuda muestra contenido en el archivo de Ayuda en función del valor seleccionado en la lista Navegador de ayuda . El botón Mostrar palabra clave muestra contenido en el archivo de Ayuda en función de la palabra clave especificada en el cuadro de texto Palabra clave .
Por ejemplo, para mostrar la página Ayuda de Ovales por el valor de índice, seleccione el HelpNavigator.KeywordIndex valor en la lista desplegable Navegador de ayuda , escriba óvalos en el cuadro de texto Parámetro y, a continuación, haga clic en el botón Mostrar ayuda . Para mostrar el tema de ayuda "Para pintar con un pincel" por la palabra clave, escriba mspaint.chm::/paint_brush.htm en el cuadro de texto Palabra clave y, a continuación, haga clic en el botón Mostrar palabra clave .
En el ejemplo se usa el ShowHelp método para mostrar las distintas pestañas de Ayuda y temas de Ayuda, y el ShowHelpIndex método para mostrar el índice de Ayuda.
#using <System.dll>
#using <System.Drawing.dll>
#using <System.Windows.Forms.dll>
using namespace System;
using namespace System::Drawing;
using namespace System::ComponentModel;
using namespace System::Windows::Forms;
public ref class Form1: public System::Windows::Forms::Form
{
private:
String^ helpfile;
System::Windows::Forms::Button^ showIndex;
System::Windows::Forms::Button^ showHelp;
System::Windows::Forms::Label ^ label1;
System::Windows::Forms::ComboBox^ navigatorCombo;
System::Windows::Forms::Button^ showKeyword;
System::Windows::Forms::TextBox^ keyword;
System::Windows::Forms::Label ^ label2;
System::Windows::Forms::Label ^ label3;
System::Windows::Forms::TextBox^ parameterTextBox;
public:
Form1()
{
helpfile = "mspaint.chm";
this->showIndex = gcnew System::Windows::Forms::Button;
this->showHelp = gcnew System::Windows::Forms::Button;
this->navigatorCombo = gcnew System::Windows::Forms::ComboBox;
this->label1 = gcnew System::Windows::Forms::Label;
this->showKeyword = gcnew System::Windows::Forms::Button;
this->keyword = gcnew System::Windows::Forms::TextBox;
this->label2 = gcnew System::Windows::Forms::Label;
this->label3 = gcnew System::Windows::Forms::Label;
this->parameterTextBox = gcnew System::Windows::Forms::TextBox;
// Help Navigator Label
this->label1->Location = System::Drawing::Point( 112, 64 );
this->label1->Size = System::Drawing::Size( 168, 16 );
this->label1->Text = "Help Navigator:";
// Keyword Label
this->label2->Location = System::Drawing::Point( 120, 184 );
this->label2->Size = System::Drawing::Size( 100, 16 );
this->label2->Text = "Keyword:";
// Parameter Label
this->label3->Location = System::Drawing::Point( 112, 120 );
this->label3->Size = System::Drawing::Size( 168, 16 );
this->label3->Text = "Parameter:";
// Show Index Button
this->showIndex->Location = System::Drawing::Point( 16, 16 );
this->showIndex->Size = System::Drawing::Size( 264, 32 );
this->showIndex->TabIndex = 0;
this->showIndex->Text = "Show Help Index";
this->showIndex->Click += gcnew System::EventHandler( this, &Form1::showIndex_Click );
// Show Help Button
this->showHelp->Location = System::Drawing::Point( 16, 80 );
this->showHelp->Size = System::Drawing::Size( 80, 80 );
this->showHelp->TabIndex = 1;
this->showHelp->Text = "Show Help";
this->showHelp->Click += gcnew System::EventHandler( this, &Form1::showHelp_Click );
// Show Keyword Button
this->showKeyword->Location = System::Drawing::Point( 16, 192 );
this->showKeyword->Size = System::Drawing::Size( 88, 32 );
this->showKeyword->TabIndex = 4;
this->showKeyword->Text = "Show Keyword";
this->showKeyword->Click += gcnew System::EventHandler( this, &Form1::showKeyword_Click );
// Help Navigator ComboBox
this->navigatorCombo->DropDownStyle = System::Windows::Forms::ComboBoxStyle::DropDownList;
this->navigatorCombo->Location = System::Drawing::Point( 112, 80 );
this->navigatorCombo->Size = System::Drawing::Size( 168, 21 );
this->navigatorCombo->TabIndex = 2;
// Keyword TextBox
this->keyword->Location = System::Drawing::Point( 120, 200 );
this->keyword->Size = System::Drawing::Size( 160, 20 );
this->keyword->TabIndex = 5;
this->keyword->Text = "";
// Parameter TextBox
this->parameterTextBox->Location = System::Drawing::Point( 112, 136 );
this->parameterTextBox->Size = System::Drawing::Size( 168, 20 );
this->parameterTextBox->TabIndex = 8;
this->parameterTextBox->Text = "";
// Set up how the form should be displayed and add the controls to the form.
this->ClientSize = System::Drawing::Size( 292, 266 );
array<System::Windows::Forms::Control^>^formControls = {this->parameterTextBox,this->label3,this->label2,this->keyword,this->showKeyword,this->label1,this->navigatorCombo,this->showHelp,this->showIndex};
this->Controls->AddRange( formControls );
this->FormBorderStyle = System::Windows::Forms::FormBorderStyle::FixedDialog;
this->Text = "Help App";
// Load the various values of the HelpNavigator enumeration
// into the combo box.
TypeConverter^ converter;
converter = TypeDescriptor::GetConverter( HelpNavigator::typeid );
System::Collections::IEnumerator^ myEnum = converter->GetStandardValues()->GetEnumerator();
while ( myEnum->MoveNext() )
{
Object^ value = safe_cast<Object^>(myEnum->Current);
navigatorCombo->Items->Add( value );
}
}
private:
void showIndex_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
// Display the index for the help file.
Help::ShowHelpIndex( this, helpfile );
}
void showHelp_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
// Display Help using the Help navigator enumeration
// that is selected in the combo box. Some enumeration
// values make use of an extra parameter, which can
// be passed in through the Parameter text box.
HelpNavigator navigator = HelpNavigator::TableOfContents;
if ( navigatorCombo->SelectedItem != nullptr )
{
navigator = *safe_cast<HelpNavigator^>(navigatorCombo->SelectedItem);
}
Help::ShowHelp( this, helpfile, navigator, parameterTextBox->Text );
}
void showKeyword_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
// Display help using the provided keyword.
Help::ShowHelp( this, helpfile, keyword->Text );
}
};
[STAThread]
int main()
{
Application::Run( gcnew Form1 );
}
using System;
using System.Drawing;
using System.ComponentModel;
using System.Windows.Forms;
public class Form1 : System.Windows.Forms.Form
{
private const string helpfile = "mspaint.chm";
private System.Windows.Forms.Button showIndex;
private System.Windows.Forms.Button showHelp;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.ComboBox navigatorCombo;
private System.Windows.Forms.Button showKeyword;
private System.Windows.Forms.TextBox keyword;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.TextBox parameterTextBox;
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
public Form1()
{
this.showIndex = new System.Windows.Forms.Button();
this.showHelp = new System.Windows.Forms.Button();
this.navigatorCombo = new System.Windows.Forms.ComboBox();
this.label1 = new System.Windows.Forms.Label();
this.showKeyword = new System.Windows.Forms.Button();
this.keyword = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.parameterTextBox = new System.Windows.Forms.TextBox();
// Help Navigator Label
this.label1.Location = new System.Drawing.Point(112, 64);
this.label1.Size = new System.Drawing.Size(168, 16);
this.label1.Text = "Help Navigator:";
// Keyword Label
this.label2.Location = new System.Drawing.Point(120, 184);
this.label2.Size = new System.Drawing.Size(100, 16);
this.label2.Text = "Keyword:";
// Parameter Label
this.label3.Location = new System.Drawing.Point(112, 120);
this.label3.Size = new System.Drawing.Size(168, 16);
this.label3.Text = "Parameter:";
// Show Index Button
this.showIndex.Location = new System.Drawing.Point(16, 16);
this.showIndex.Size = new System.Drawing.Size(264, 32);
this.showIndex.TabIndex = 0;
this.showIndex.Text = "Show Help Index";
this.showIndex.Click += new System.EventHandler(this.showIndex_Click);
// Show Help Button
this.showHelp.Location = new System.Drawing.Point(16, 80);
this.showHelp.Size = new System.Drawing.Size(80, 80);
this.showHelp.TabIndex = 1;
this.showHelp.Text = "Show Help";
this.showHelp.Click += new System.EventHandler(this.showHelp_Click);
// Show Keyword Button
this.showKeyword.Location = new System.Drawing.Point(16, 192);
this.showKeyword.Size = new System.Drawing.Size(88, 32);
this.showKeyword.TabIndex = 4;
this.showKeyword.Text = "Show Keyword";
this.showKeyword.Click += new System.EventHandler(this.showKeyword_Click);
// Help Navigator ComboBox
this.navigatorCombo.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.navigatorCombo.Location = new System.Drawing.Point(112, 80);
this.navigatorCombo.Size = new System.Drawing.Size(168, 21);
this.navigatorCombo.TabIndex = 2;
// Keyword TextBox
this.keyword.Location = new System.Drawing.Point(120, 200);
this.keyword.Size = new System.Drawing.Size(160, 20);
this.keyword.TabIndex = 5;
this.keyword.Text = "";
// Parameter TextBox
this.parameterTextBox.Location = new System.Drawing.Point(112, 136);
this.parameterTextBox.Size = new System.Drawing.Size(168, 20);
this.parameterTextBox.TabIndex = 8;
this.parameterTextBox.Text = "";
// Set up how the form should be displayed and add the controls to the form.
this.ClientSize = new System.Drawing.Size(292, 266);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.parameterTextBox, this.label3,
this.label2, this.keyword,
this.showKeyword, this.label1,
this.navigatorCombo, this.showHelp,
this.showIndex});
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
this.Text = "Help App";
// Load the various values of the HelpNavigator enumeration
// into the combo box.
TypeConverter converter;
converter = TypeDescriptor.GetConverter(typeof(HelpNavigator));
foreach(object value in converter.GetStandardValues())
{
navigatorCombo.Items.Add(value);
}
}
private void showIndex_Click(object sender, System.EventArgs e)
{
// Display the index for the help file.
Help.ShowHelpIndex(this, helpfile);
}
private void showHelp_Click(object sender, System.EventArgs e)
{
// Display Help using the Help navigator enumeration
// that is selected in the combo box. Some enumeration
// values make use of an extra parameter, which can
// be passed in through the Parameter text box.
HelpNavigator navigator = HelpNavigator.TableOfContents;
if (navigatorCombo.SelectedItem != null)
{
navigator = (HelpNavigator)navigatorCombo.SelectedItem;
}
Help.ShowHelp(this, helpfile, navigator, parameterTextBox.Text);
}
private void showKeyword_Click(object sender, System.EventArgs e)
{
// Display help using the provided keyword.
Help.ShowHelp(this, helpfile, keyword.Text);
}
}
Imports System.Drawing
Imports System.ComponentModel
Imports System.Windows.Forms
Public Class Form1
Inherits System.Windows.Forms.Form
Private helpfile As String = "mspaint.chm"
Private WithEvents showIndex As System.Windows.Forms.Button
Private WithEvents showHelp As System.Windows.Forms.Button
Private WithEvents label1 As System.Windows.Forms.Label
Private WithEvents navigatorCombo As System.Windows.Forms.ComboBox
Private WithEvents showKeyword As System.Windows.Forms.Button
Private WithEvents keyword As System.Windows.Forms.TextBox
Private WithEvents label2 As System.Windows.Forms.Label
Private WithEvents label3 As System.Windows.Forms.Label
Private WithEvents parameterTextBox As System.Windows.Forms.TextBox
<STAThread()> _
Shared Sub Main()
Application.Run(New Form1)
End Sub
Public Sub New()
Me.showIndex = New System.Windows.Forms.Button
Me.showHelp = New System.Windows.Forms.Button
Me.navigatorCombo = New System.Windows.Forms.ComboBox
Me.label1 = New System.Windows.Forms.Label
Me.showKeyword = New System.Windows.Forms.Button
Me.keyword = New System.Windows.Forms.TextBox
Me.label2 = New System.Windows.Forms.Label
Me.label3 = New System.Windows.Forms.Label
Me.parameterTextBox = New System.Windows.Forms.TextBox
' Help Navigator Label
Me.label1.Location = New System.Drawing.Point(112, 64)
Me.label1.Size = New System.Drawing.Size(168, 16)
Me.label1.Text = "Help Navigator:"
' Keyword Label
Me.label2.Location = New System.Drawing.Point(120, 184)
Me.label2.Size = New System.Drawing.Size(100, 16)
Me.label2.Text = "Keyword:"
' Parameter Label
Me.label3.Location = New System.Drawing.Point(112, 120)
Me.label3.Size = New System.Drawing.Size(168, 16)
Me.label3.Text = "Parameter:"
' Show Index Button
Me.showIndex.Location = New System.Drawing.Point(16, 16)
Me.showIndex.Size = New System.Drawing.Size(264, 32)
Me.showIndex.TabIndex = 0
Me.showIndex.Text = "Show Help Index"
' Show Help Button
Me.showHelp.Location = New System.Drawing.Point(16, 80)
Me.showHelp.Size = New System.Drawing.Size(80, 80)
Me.showHelp.TabIndex = 1
Me.showHelp.Text = "Show Help"
' Show Keyword Button
Me.showKeyword.Location = New System.Drawing.Point(16, 192)
Me.showKeyword.Size = New System.Drawing.Size(88, 32)
Me.showKeyword.TabIndex = 4
Me.showKeyword.Text = "Show Keyword"
' Help Navigator Combo
'
Me.navigatorCombo.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList
Me.navigatorCombo.Location = New System.Drawing.Point(112, 80)
Me.navigatorCombo.Size = New System.Drawing.Size(168, 21)
Me.navigatorCombo.TabIndex = 2
' Keyword TextBox
Me.keyword.Location = New System.Drawing.Point(120, 200)
Me.keyword.Size = New System.Drawing.Size(160, 20)
Me.keyword.TabIndex = 5
Me.keyword.Text = ""
'
' Parameter TextBox
'
Me.parameterTextBox.Location = New System.Drawing.Point(112, 136)
Me.parameterTextBox.Size = New System.Drawing.Size(168, 20)
Me.parameterTextBox.TabIndex = 8
Me.parameterTextBox.Text = ""
' Set up how the form should be displayed and add the controls to the form.
Me.ClientSize = New System.Drawing.Size(292, 266)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.parameterTextBox, _
Me.label3, Me.label2, Me.keyword, Me.showKeyword, _
Me.label1, Me.navigatorCombo, Me.showHelp, Me.showIndex})
Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog
Me.Text = "Help App"
' Load the various values of the HelpNavigator enumeration
' into the combo box.
Dim converter As TypeConverter
converter = TypeDescriptor.GetConverter(GetType(HelpNavigator))
Dim value As Object
For Each value In converter.GetStandardValues()
navigatorCombo.Items.Add(value)
Next value
End Sub
Private Sub showIndex_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles showIndex.Click
' Display the index for the Help file.
Help.ShowHelpIndex(Me, helpfile)
End Sub
Private Sub showHelp_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles showHelp.Click
' Display Help using the Help navigator enumeration
' that is selected in the combo box. Some enumeration
' values make use of an extra parameter, which can
' be passed in through the Parameter text box.
Dim navigator As HelpNavigator = HelpNavigator.TableOfContents
If (navigatorCombo.SelectedItem IsNot Nothing) Then
navigator = CType(navigatorCombo.SelectedItem, HelpNavigator)
End If
Help.ShowHelp(Me, helpfile, navigator, parameterTextBox.Text)
End Sub
Private Sub showKeyword_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles showKeyword.Click
' Display Help using the provided keyword.
Help.ShowHelp(Me, helpfile, keyword.Text)
End Sub
End Class
Comentarios
No se puede crear una nueva instancia de la Help clase . Para proporcionar ayuda para una aplicación, llame a los métodos y ShowHelpIndex estáticosShowHelp.
Puede usar Help para mostrar archivos de Ayuda compilados (.chm) o archivos HTML en el formato de Ayuda HTML. Los archivos de Ayuda compilados proporcionan una tabla de contenido, un índice, una funcionalidad de búsqueda y vínculos de palabras clave en páginas. Los accesos directos solo funcionan en archivos de Ayuda compilados.
Puede generar archivos de Ayuda HTML 1.x mediante html Help Workshop. Para obtener más información sobre la Ayuda HTML, vea "Taller de ayuda HTML" y otros temas de Ayuda HTML en Microsoft Ayuda HTML.
Métodos
| ShowHelp(Control, String) |
Muestra el contenido del archivo de Ayuda en la dirección URL especificada. |
| ShowHelp(Control, String, HelpNavigator) |
Muestra el contenido del archivo de Ayuda correspondiente a un tema concreto que se encuentra en la dirección URL especificada. |
| ShowHelp(Control, String, HelpNavigator, Object) |
Muestra el contenido del archivo de Ayuda ubicado en la dirección URL proporcionada por el usuario. |
| ShowHelp(Control, String, String) |
Muestra el contenido del archivo de Ayuda correspondiente a una palabra clave concreta que se encuentra en la dirección URL especificada. |
| ShowHelpIndex(Control, String) |
Muestra el índice del archivo de Ayuda especificado. |
| ShowPopup(Control, String, Point) |
Muestra una ventana emergente de Ayuda. |
Se aplica a
Consulte también
Colaborar con nosotros en GitHub
El origen de este contenido se puede encontrar en GitHub, donde también puede crear y revisar problemas y solicitudes de incorporación de cambios. Para más información, consulte nuestra guía para colaboradores.
