179
An enumeration of type PaperSourceKind expressing the paper source in terms of standard names, such as
Lower and
Upper .
SourceName A string giving the name of the paper source, such as
Lower and
Upper .
PrinterResolution Indicates the resolution capability of the printer. The syntax of the PrinterResolution property is:
Public Property PrinterResolution As _ System.Drawing.Printing.PrinterResolution
The PrinterResolution class has three properties: X
An Integer expressing the horizontal resolution of the printer in dots per inch. Y
An Integer expressing the vertical resolution of the printer in dots per inch. Kind
An enumeration of type PrinterResolutionKind expressing the resolution mode. The values of this enumeration are
Draft ,
Low ,
Medium ,
High , and
Custom .
PrinterSettings Indicates the settings applicable to the printer being used. The syntax of the PrinterSettings
property is: Public Property PrinterSettings As _
System.Drawing.Printing.PrinterSettings The PrinterSettings class is described in the next section.
4.7.6 The PrinterSettings Class
The PrinterSettings class holds values that describe the capabilities and settings of a specific printer. It exposes these properties:
CanDuplex Indicates whether the printer can print on both sides of the paper. The syntax of the
CanDuplex property is: Public ReadOnly Property CanDuplex As Boolean
Collate Indicates whether the document being printed will be collated. The syntax of the Collate
property is:
180
Public Property Collate As Boolean Copies
Indicates the number of copies to print. The syntax of the Copies property is: Public Property Copies As Short
DefaultPageSettings Indicates the default page settings for this printer. The syntax of the DefaultPageSettings
property is: Public ReadOnly Property DefaultPageSettings As _
System.Drawing.Printing.PageSettings The PageSettings class was described in the previous section.
Duplex Indicates whether the print job is to print on both sides of the paper. The syntax of the Duplex
property is: Public Property Duplex As System.Drawing.Printing.Duplex
The Duplex type is an enumeration with the following values: Simplex
The document will print only on one side of each page. Horizontal
The document will print using both sides of each page. Vertical
The document will print using both sides of each page, and the second side will be inverted to work with vertical binding.
Default The document will print using the printers default duplex mode.
FromPage Specifies the first page to print if the PrintRange property is set to
SomePages . The syntax of
the FromPage property is: Public Property FromPage As Integer
InstalledPrinters Indicates the names of the printers installed on the computer. This list includes only the
printers physically connected to the machine if any, not necessarily all printers set up in the Control Panel. The syntax of the InstalledPrinters property is:
Public Shared ReadOnly Property InstalledPrinters As _
181
System.Drawing.Printing.PrinterSettings.StringCollection The StringCollection class is a collection of strings. It can be iterated using code such as this:
Assume pts is of type PrinterSettings. Dim str As String
For Each str In pts.InstalledPrinters Console.WriteLinestr
Next
IsDefaultPrinter Indicates whether this printer is the users default printer. The syntax of the IsDefaultPrinter
property is: Public ReadOnly Property IsDefaultPrinter As Boolean
If the PrinterName property is explicitly set to anything other than Nothing
, this property always returns
False .
IsPlotter Indicates whether this printer is a plotter. The syntax of the IsPlotter property is:
Public ReadOnly Property IsPlotter As Boolean IsValid
Indicates whether the PrinterName property designates a valid printer. The syntax of the IsValid property is:
Public ReadOnly Property IsValid As Boolean This property is useful if the PrinterName property is being set explicitly. If the PrinterName is
set as a result of allowing the user to select a printer through the PrintDialog dialog box, this property will always be
True .
LandscapeAngle Indicates the angle in degrees by which portrait orientation is rotated to produce landscape
orientation. The syntax of the LandscapeAngle property is: Public ReadOnly Property LandscapeAngle As Integer
This value can only be 90 or 270. If landscape orientation is not supported, this value can only be 0.
MaximumCopies Indicates the maximum number of copies that the printer can print at one time. The syntax of
the MaximumCopies property is: Public ReadOnly Property MaximumCopies As Integer
MaximumPage Indicates the highest page number that can be entered in a PrintDialog dialog box. The syntax
of the MaximumPage property is:
182
Public Property MaximumPage As Integer Set this value prior to calling the PrintDialog objects ShowDialog method to prohibit the user
from entering a page number that is too high. MinimumPage
Indicates the lowest page number that can be entered in a PrintDialog dialog box. The syntax of the MinimumPage property is:
Public Property MinimumPage As Integer Set this value prior to calling the PrintDialog objects ShowDialog method to prohibit the user
from entering a page number that is too low. PaperSizes
Indicates the paper sizes that are supported by this printer. The syntax of the PaperSizes property is:
Public ReadOnly Property PaperSizes As _ System.Drawing.Printing.PrinterSettings+PaperSizeCollection
The PaperSizeCollection is a collection of objects of type PaperSize. The PaperSize type was described in the previous section, under the description for the PaperSize property of the
PageSettings class. The PaperSizeCollection can be iterated using the following code:
Assume pts is of type PrinterSettings. Dim pprSize As PaperSize
For Each pprSize In pts.PaperSizes Console.WriteLinepprSize.PaperName
Next
PaperSources Indicates the paper sources that are available on the printer. The syntax of the PaperSources
property is: Public ReadOnly Property PaperSources As _
System.Drawing.Printing.PrinterSettings+PaperSourceCollection The PaperSourceCollection is a collection of objects of type PaperSource. The PaperSource
type was described in the previous section, under the description for the PaperSource property of the PageSettings class. The PaperSourceCollection can be iterated using the
following code:
Assume pts is of type PrinterSettings. Dim pprSource As PaperSource
For Each pprSource In pts.PaperSources Console.WriteLinepprSource.SourceName
Next
PrinterName Indicates the name of the printer. The syntax of the PrinterName property is:
Public Property PrinterName As String Unless a string has been explicitly assigned to the property, its value is
Null .
183
PrinterResolutions Indicates the resolution supported by this printer. The syntax of the PrinterResolutions
property is: Public ReadOnly Property PrinterResolutions As _
System.Drawing.Printing.PrinterSettings.PrinterResolutionCollection
The PrinterResolutionCollection is a collection of objects of type PrinterResolution. The PrinterResolution type was described in the previous section, under the description for the
PrinterResolution property of the PageSettings class. The PrinterResolutionCollection can be iterated using the following code:
Assume pts is of type PrinterSettings. Dim ptrResolution As PrinterResolution
For Each ptrResolution In pts.PrinterResolutions Console.WriteLineptrResolution.Kind.ToString
Next
PrintRange Indicates the range of pages that are to be printed. The syntax of the PrintRange property is:
Public Property PrintRange As System.Drawing.Printing.PrintRange The PrintRange type is an enumeration having the following values:
AllPages Prints the entire document.
Selection Prints only the selected portion of the document.
SomePages Prints the pages starting at the page specified in the FromPage property and ending at the
page specified in the ToPage property. SupportsColor
Indicates whether the printer supports color printing. The syntax of the SupportsColor property is:
Public ReadOnly Property SupportsColor As Boolean ToPage
Specifies the final page to print if the PrintRange property is set to SomePages
. The syntax of the ToPage property is:
Public Property ToPage As Integer The methods of the PrinterSettings class are:
Clone
184
Creates a copy of the PrinterSettings object. The syntax of the Clone method is: Public NotOverridable Function Clone As Object _
Implements System.ICloneable.Clone GetHdevmode
Returns a handle to a Windows DEVMODE
device mode structure corresponding to this PrinterSettings object. The GetHdevmode method has two forms:
Public Overloads Function GetHdevmode As System.IntPtr and:
Public Overloads Function GetHdevmode _ ByVal pageSettings As System.Drawing.Printing.PageSettings _
As System.IntPtr
The DEVMODE
structure is part of the Windows API and is not discussed further in this book. GetHdevnames
Returns a handle to a Windows DEVNAMES
structure corresponding to this PrinterSettings object. The syntax of the GetHdevnames method is:
Public Function GetHdevnames As System.IntPtr The
DEVNAMES structure is part of the Windows API and is not discussed further in this book.
SetHdevmode Sets properties of this PrinterSettings object based on values in the given
DEVMODE structure.
The syntax of the SetHdevmode method is: Public Sub SetHdevmodeByVal hdevmode As System.IntPtr
The DEVMODE
structure is part of the Windows API and is not discussed further in this book. SetHdevnames
Sets properties of this PrinterSettings object based on values in the given DEVNAMES
structure. The syntax of the SetHdevnames method is:
Public Sub SetHdevnamesByVal hdevnames As System.IntPtr The
DEVNAMES structure is part of the Windows API and is not discussed further in this book.
4.7.7 Page Setup Dialog Box
