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





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GdPicture14.WPF Namespace / GdViewer Class / PrintSetPreRasterization Method

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 PrintSetPreRasterizationDPI method when pre-rasterization is enabled.

Syntax
'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 GetStat method or the 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 PrintGetActivePrinter method or set by the 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
How to enable the pre-rasterization option when printing the displayed document. 
'We assume that the GdViewer1 control has been properly integrated.

If GdViewer1.DisplayFromFile("") = GdPictureStatus.OK Then

    'enable pre-rasterization option

    GdViewer1.PrintSetPreRasterization(True)

    GdViewer1.PrintSetPreRasterizationDPI(300)

    If GdViewer1.Print(PrintSizeOption.PrintSizeOptionActual) = GdPictureStatus.OK Then

        MessageBox.Show("The file has been printed successfully.", "GdViewer.PrintSetPreRasterization")

    Else

        Dim message As String = "The file can't be printed." + vbCrLf + "Status: " + GdViewer1.GetStat().ToString()

        If GdViewer1.PrintGetStat() = GdPictureStatus.PrintingException Then message = message + "    Error: " + GdViewer1.PrintGetLastError()

        MessageBox.Show(message, "GdViewer.PrintSetPreRasterization")

    End If

    GdViewer1.CloseDocument()

Else

    MessageBox.Show("The file can't be displayed. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.PrintSetPreRasterization")

End If
//We assume that the GdViewer1 control has been properly integrated.

if (GdViewer1.DisplayFromFile("") == GdPictureStatus.OK)

{

    //enable pre-rasterization option

    GdViewer1.PrintSetPreRasterization(true);

    GdViewer1.PrintSetPreRasterizationDPI(300);

    if (GdViewer1.Print(PrintSizeOption.PrintSizeOptionActual) == GdPictureStatus.OK)

    {

        MessageBox.Show("The file has been printed successfully.", "GdViewer.PrintSetPreRasterization");

    }

    else

    {

        string message = "The file can't be printed.\nStatus: " + GdViewer1.GetStat().ToString();

        if (GdViewer1.PrintGetStat() == GdPictureStatus.PrintingException)

            message = message + "    Error: " + GdViewer1.PrintGetLastError();

        MessageBox.Show(message, "GdViewer.PrintSetPreRasterization");

    }

    GdViewer1.CloseDocument();

}

else

{

    MessageBox.Show("The file can't be displayed. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.PrintSetPreRasterization");

}
Example
How to enable the pre-rasterization option when printing the displayed document. 'We assume that the GdViewer1 control has been properly integrated. If GdViewer1.DisplayFromFile("") = GdPictureStatus.OK Then 'enable pre-rasterization option GdViewer1.PrintSetPreRasterization(True) GdViewer1.PrintSetPreRasterizationDPI(300) If GdViewer1.Print(PrintSizeOption.PrintSizeOptionActual) = GdPictureStatus.OK Then MessageBox.Show("The file has been printed successfully.", "GdViewer.PrintSetPreRasterization") Else Dim message As String = "The file can't be printed." + vbCrLf + "Status: " + GdViewer1.GetStat().ToString() If GdViewer1.PrintGetStat() = GdPictureStatus.PrintingException Then message = message + " Error: " + GdViewer1.PrintGetLastError() MessageBox.Show(message, "GdViewer.PrintSetPreRasterization") End If GdViewer1.CloseDocument() Else MessageBox.Show("The file can't be displayed. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.PrintSetPreRasterization") End If //We assume that the GdViewer1 control has been properly integrated. if (GdViewer1.DisplayFromFile("") == GdPictureStatus.OK) { //enable pre-rasterization option GdViewer1.PrintSetPreRasterization(true); GdViewer1.PrintSetPreRasterizationDPI(300); if (GdViewer1.Print(PrintSizeOption.PrintSizeOptionActual) == GdPictureStatus.OK) { MessageBox.Show("The file has been printed successfully.", "GdViewer.PrintSetPreRasterization"); } else { string message = "The file can't be printed.\nStatus: " + GdViewer1.GetStat().ToString(); if (GdViewer1.PrintGetStat() == GdPictureStatus.PrintingException) message = message + " Error: " + GdViewer1.PrintGetLastError(); MessageBox.Show(message, "GdViewer.PrintSetPreRasterization"); } GdViewer1.CloseDocument(); } else { MessageBox.Show("The file can't be displayed. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.PrintSetPreRasterization"); }
See Also

Reference

GdViewer Class
GdViewer Members
PrintSetPreRasterizationDPI Method
GetStat Method
PrintGetStat Method
PrintGetActivePrinter Method
PrintSetActivePrinter Method
PrintSetPreRasterizationDPI Method
PrintGetActivePrinter Method
PrintSetActivePrinter Method
PrintGetStat Method
Print Method