BarcodePDF417GetSize Method (GdPictureImaging)

In This Topic

Returns the size, in pixels, required to render a PDF417 barcode on a Bitmap.

Syntax

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

'Declaration
 
Public Function BarcodePDF417GetSize( _
   ByVal Data As String, _
   ByVal EncodingMode As BarcodePDF417EncodingMode, _
   ByRef ErrorCorrectionLevel As BarcodePDF417ErrorCorrectionLevel, _
   ByRef Rows As Integer, _
   ByRef Cols As Integer, _
   ByVal QuietZone As Integer, _
   ByVal ModuleWidth As Integer, _
   ByVal RowHeight As Integer, _
   ByRef Width As Integer, _
   ByRef Height As Integer _
) As GdPictureStatus

public GdPictureStatus BarcodePDF417GetSize( 
   string Data,
   BarcodePDF417EncodingMode EncodingMode,
   ref BarcodePDF417ErrorCorrectionLevel ErrorCorrectionLevel,
   ref int Rows,
   ref int Cols,
   int QuietZone,
   int ModuleWidth,
   int RowHeight,
   out int Width,
   out int Height
)

public function BarcodePDF417GetSize( 
    Data: String;
    EncodingMode: BarcodePDF417EncodingMode;
   var  ErrorCorrectionLevel: BarcodePDF417ErrorCorrectionLevel;
   var  Rows: Integer;
   var  Cols: Integer;
    QuietZone: Integer;
    ModuleWidth: Integer;
    RowHeight: Integer;
   Out  Width: Integer;
   Out  Height: Integer
): GdPictureStatus;

public function BarcodePDF417GetSize( 
   Data : String,
   EncodingMode : BarcodePDF417EncodingMode,
   ErrorCorrectionLevel : BarcodePDF417ErrorCorrectionLevel,
   Rows : int,
   Cols : int,
   QuietZone : int,
   ModuleWidth : int,
   RowHeight : int,
   Width : int,
   Height : int
) : GdPictureStatus;

public: GdPictureStatus BarcodePDF417GetSize( 
   string* Data,
   BarcodePDF417EncodingMode EncodingMode,
   ref BarcodePDF417ErrorCorrectionLevel ErrorCorrectionLevel,
   ref int Rows,
   ref int Cols,
   int QuietZone,
   int ModuleWidth,
   int RowHeight,
   [PARAMFLAG::Out] int Width,
   [PARAMFLAG::Out] int Height
)

public:
GdPictureStatus BarcodePDF417GetSize( 
   String^ Data,
   BarcodePDF417EncodingMode EncodingMode,
   BarcodePDF417ErrorCorrectionLevel% ErrorCorrectionLevel,
   int% Rows,
   int% Cols,
   int QuietZone,
   int ModuleWidth,
   int RowHeight,
   [Out] int Width,
   [Out] int Height
)

Parameters

Data: The data of the barcode to encode.
EncodingMode: A member of the BarcodePDF417EncodingMode enumeration. The encoding mode.
ErrorCorrectionLevel: A member of the BarcodePDF417ErrorCorrectionLevel enumeration. The error correction level.
Rows: Specifies the number of rows constituting the barcode. Use 0 for automatic computation (recommended) or a value in the range [3 - 90].
Cols: Specifies the number of columns constituting the barcode. Use 0 for automatic computation (recommended) or a value in the range [3 - 30].
QuietZone: The number of modules composing the quiet zone. The quiet zone defines the margin around the barcode. A value superior or equal to 4 is highly suggested.
ModuleWidth: The width of each module, in pixels. A value superior or equal to 4 is recommended.
RowHeight: The height of each row, in pixels. A value superior or equal to 10 is recommended.
Width: Output parameter. The width, in pixels, required to render the PDF417 barcode.
Height: Output parameter. The height, in pixels, required to render the PDF417 barcode.

Return Value

A member of the GdPictureStatus enumeration.

Example

Rendering a PDF417 barcode into a new image and saving the result into a png file.

using (GdPictureImaging gdpictureImaging = new GdPictureImaging())
{
    // String that have to be encoded into a barcode.
    string data = "PDF417 Barcode";
 
    BarcodePDF417EncodingMode encodingMode = BarcodePDF417EncodingMode.BarcodePDF417EncodingModeUndefined;
    // Level 0 to 8 are allowed, the number of error correction codewords is 2^(n+1).
    BarcodePDF417ErrorCorrectionLevel errorCorrectionLevel = BarcodePDF417ErrorCorrectionLevel.BarcodePDF417ErrorCorrectionLevelAuto;
    int moduleSize = 5;
    int fillColor = gdpictureImaging.ARGBI(255, 0, 0, 0);
    int backColor = gdpictureImaging.ARGBI(0, 255, 255, 255);
    int rows = 0, columns = 0; // Let the encoder choose the best ratio.
    int quietZone = 3; // 3 modules wide
 
    // Compute size (in pixels), required to render a PDF417 barcode.
    gdpictureImaging.BarcodePDF417GetSize(data, encodingMode, ref errorCorrectionLevel, ref rows, ref columns, quietZone, moduleSize, 17 * moduleSize, out int width, out int height);
 
    int imageID = gdpictureImaging.CreateNewGdPictureImage(width, height, 32, Color.White);
    gdpictureImaging.BarcodePDF417Write(imageID, data, encodingMode, errorCorrectionLevel, rows, columns, quietZone, moduleSize, 17 * moduleSize, 0, 0, 0, fillColor, backColor);
    gdpictureImaging.SaveAsPNG(imageID, "PDF417.png");
 
    // Release used resources.
    gdpictureImaging.ReleaseGdPictureImage(imageID);
}

Reference

GdPictureImaging Class
GdPictureImaging Members
BarcodePDF417Write(Int32,String,BarcodePDF417EncodingMode,BarcodePDF417ErrorCorrectionLevel,Int32,Int32,Int32,Int32,Int32,Int32,Int32,Single,GdPictureColor,GdPictureColor) Method