PrintSetPreRasterization Method (GdViewer)

In This Topic

Enables or disables the pre-rasterization parameter which specifies whether the pages of the document currently displayed in the GdViewer control must be pre-rasterized before being printed using the active printer. Enabling the pre-rasterization can dramatically improve the performance with printer drivers non-optimized for vector graphics rendering.

You can also define the rendering resolution using the GdViewer.PrintSetPreRasterizationDPI method when pre-rasterization is enabled.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function PrintSetPreRasterization( _
   ByVal PreRasterization As Boolean _
) As GdPictureStatus

public GdPictureStatus PrintSetPreRasterization( 
   bool PreRasterization
)

public function PrintSetPreRasterization( 
    PreRasterization: Boolean
): GdPictureStatus;

public function PrintSetPreRasterization( 
   PreRasterization : boolean
) : GdPictureStatus;

public: GdPictureStatus PrintSetPreRasterization( 
   bool PreRasterization
)

public:
GdPictureStatus PrintSetPreRasterization( 
   bool PreRasterization
)

Parameters

PreRasterization: Set this parameter to true if you want to enable the pre-rasterization, otherwise set it to false. The default value is false.

Return Value

A member of the GdPictureStatus enumeration. If the method has been successfully followed, then the return value is GdPictureStatus.OK.

We strongly recommend always checking this status first.

Remarks

It is recommend to use the GdViewer.GetStat method or the GdViewer.PrintGetStat method to identify the specific reason for the method's failure, if any.

Just to remind you that the active printer is the printer identified by the GdViewer.PrintGetActivePrinter method or set by the GdViewer.PrintSetActivePrinter method and it is dedicated to executing all subsequent print jobs using this class as well as utilizing all by you altered printer settings.

Example

Printing a file using the pre-rasterization feature.

C#
VB.NET

// Display a file in the integrated GdViewer1 control.
GdViewer1.DisplayFromFile(""); // An empty string allows the control to prompt for selecting a file.
 
// Enable the pre-rasterization option.
GdViewer1.PrintSetPreRasterization(true);
GdViewer1.PrintSetPreRasterizationDPI(300);
 
// Print a file.
GdViewer1.Print();
 
GdViewer1.CloseDocument();

' Display a file in the integrated GdViewer1 control.
GdViewer1.DisplayFromFile("") ' An empty String allows the control To prompt For selecting a file.
 
' Enable the pre-rasterization option.
GdViewer1.PrintSetPreRasterization(True)
GdViewer1.PrintSetPreRasterizationDPI(300)
 
' Print a file.
GdViewer1.Print()
 
GdViewer1.CloseDocument()

Reference

GdViewer Class
GdViewer Members
PrintSetPreRasterizationDPI Method
PrintGetActivePrinter Method
PrintGetPrinterSettings Method
PrintSetActivePrinter Method
PrintSetPrinterSettings Method
PrintGetStat Method
Print Method