PrintDialog::ShowHelp Property

 

Gets or sets a value indicating whether the Help button is displayed.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public:
property bool ShowHelp {
	bool get();
	void set(bool value);
}

Property Value

Type: System::Boolean

true if the Help button is displayed; otherwise, false. The default is false.

This property was marked obsolete in Windows 2000 and does not affect this and later versions of Windows.

The following code example demonstrates the use of the PrintDialog control setting the AllowSomePages, ShowHelp, and Document properties. To run this example paste the following code in a form that contains a PrintDialog control named PrintDialog1 and a button named Button1. This example requires that the button's Click event and the PrintPage event of docToPrint have been connected to the event handling methods defined in this example.

// Declare the PrintDocument object.
System::Drawing::Printing::PrintDocument^ docToPrint;

// This method will set properties on the PrintDialog object and
// then display the dialog.
void Button1_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
   // Allow the user to choose the page range he or she would
   // like to print.
   PrintDialog1->AllowSomePages = true;

   // Show the help button.
   PrintDialog1->ShowHelp = true;

   // Set the Document property to the PrintDocument for 
   // which the PrintPage Event has been handled. To display the
   // dialog, either this property or the PrinterSettings property 
   // must be set 
   PrintDialog1->Document = docToPrint;
   if ( docToPrint == nullptr )
         System::Windows::Forms::MessageBox::Show(  "null" );

   ;
   ;
   if ( PrintDialog1 == nullptr )
         System::Windows::Forms::MessageBox::Show(  "pnull" );

   ;
   ;
   System::Windows::Forms::DialogResult result = PrintDialog1->ShowDialog();
   System::Windows::Forms::MessageBox::Show( result.ToString() );
   ;
   ;

   // If the result is OK then print the document.
   if ( result == ::DialogResult::OK )
   {
      docToPrint->Print();
   }

}

// The PrintDialog will print the document
// by handling the document's PrintPage event.
void document_PrintPage( Object^ /*sender*/, System::Drawing::Printing::PrintPageEventArgs^ e )
{
   // Insert code to render the page here.
   // This code will be called when the control is drawn.
   // The following code will render a simple
   // message on the printed document.
   String^ text = "In document_PrintPage method.";
   System::Drawing::Font^ printFont = gcnew System::Drawing::Font( "Arial",35,System::Drawing::FontStyle::Regular );

   // Draw the content.
   e->Graphics->DrawString( text, printFont, System::Drawing::Brushes::Black, 10, 10 );
}

.NET Framework
Available since 1.1
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