The rendering resolution to be used for pre-rasterization. The default value is -1, which means automatic computation based on printing quality.
Example





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GdPicture14 Namespace / GdPicturePDF Class / PrintSetPreRasterizationDPI Method

PrintSetPreRasterizationDPI Method (GdPicturePDF)

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Specifies the rendering resolution to be used when pre-rasterization is enabled using the PrintSetPreRasterization method. Enabling the pre-rasterization and setting the proper DPI can dramatically improve the performance with printer drivers non-optimized for vector graphics rendering.
Syntax
'Declaration
 
Public Function PrintSetPreRasterizationDPI( _
   ByVal DPI As Single _
) As GdPictureStatus
public GdPictureStatus PrintSetPreRasterizationDPI( 
   float DPI
)
public function PrintSetPreRasterizationDPI( 
    DPI: Single
): GdPictureStatus; 
public function PrintSetPreRasterizationDPI( 
   DPI : float
) : GdPictureStatus;
public: GdPictureStatus PrintSetPreRasterizationDPI( 
   float DPI
) 
public:
GdPictureStatus PrintSetPreRasterizationDPI( 
   float DPI
) 

Parameters

DPI
The rendering resolution to be used for pre-rasterization. The default value is -1, which means automatic computation based on printing quality.

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.

Example
Setting the pre-rasterization DPI to speed up the print process.
Using gdpicturePDF As New GdPicturePDF()
    gdpicturePDF.LoadFromFile("document_to_print.pdf", False)
    'Enabling the pre-rasterization option.
    gdpicturePDF.PrintSetPreRasterization(True)
    'Setting the pre-rasterization DPI.
    gdpicturePDF.PrintSetPreRasterizationDPI(300)
    gdpicturePDF.Print()
    gdpicturePDF.CloseDocument()
End Using
using (GdPicturePDF gdpicturePDF = new GdPicturePDF())
{
    gdpicturePDF.LoadFromFile("document_to_print.pdf", false);
    //Enabling the pre-rasterization option.
    gdpicturePDF.PrintSetPreRasterization(true);
    //Setting the pre-rasterization DPI.
    gdpicturePDF.PrintSetPreRasterizationDPI(300);
    gdpicturePDF.Print();
    gdpicturePDF.CloseDocument();
}
See Also