PrinterCollection Class

發行項
02/28/2011

Provides a collection of printers for use by upgraded Visual Basic 6.0 printing code.

Inheritance Hierarchy

System.Object
Microsoft.VisualBasic.PowerPacks.Printing.Compatibility.VB6.PrinterCollection

Namespace: Microsoft.VisualBasic.PowerPacks.Printing.Compatibility.VB6
Assembly: Microsoft.VisualBasic.PowerPacks.Vs (in Microsoft.VisualBasic.PowerPacks.Vs.dll)

Syntax

'宣告
Public NotInheritable Class PrinterCollection _
    Implements IEnumerable

public sealed class PrinterCollection : IEnumerable

public ref class PrinterCollection sealed : IEnumerable

[<Sealed>]
type PrinterCollection =  
    class
        interface IEnumerable
    end

public final class PrinterCollection implements IEnumerable

The PrinterCollection type exposes the following members.

Constructors

	Name	Description
	PrinterCollection	Initializes a PrinterCollection object.

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Properties

	Name	Description
	Count	Returns the number of printers in the Printers collection.
	Item	Returns a specific member of the Printers collection by index number.

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Methods

	Name	Description
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Explicit Interface Implementations

	Name	Description
	IEnumerable.GetEnumerator

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Remarks

The PrinterCollection class exposes a global Printers collection that returns a collection of available printers on the system.

The Printers collection uses a zero-based index: the first Printer has an Index of 0, the second has an Index of 1, and so on.

The Printers collection is read-only; you cannot add or remove a Printer object from Printers.

注意

Functions and objects in the Microsoft.VisualBasic.PowerPacks.Printing.Compatibility.VB6 namespace are provided for use by the tools for upgrading from Visual Basic 6.0 to Visual Basic 2010. In most cases, these functions and objects duplicate functionality that you can find in other namespaces in the .NET Framework. They are necessary only when the Visual Basic 6.0 code model differs significantly from the .NET Framework implementation.

Examples

The following example demonstrates how to return a list of printers. It assumes that you have a ListBox control named ListBox1.

Dim i As Integer
For i = 0 To Printers.Count - 1
    ListBox1.Items.Add(Printers(i).DeviceName)
Next

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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