Method: Draw

Redraws current barcode symbol in the TImage, TQRImage, or TQRGzImage control that's specified by the Image property.

Syntax:

function Draw: Boolean; virtual;

Description:

The method redraws the barcode symbol that is specified in the barcode component to the TImage, TQRImage, or TQRGzImage control that's specified by the Image property.

Return:

• If the method succeeds, the return value is true.

• If the Image property is not set, the return value is false.

  If the length of Barcode or Data (only for Delphi/C++ Builder 2009 or later) property value is invalid, the return value is false, corresponding to the OnInvalidLength or OnInvalidDataLength (only for Delphi/C++ Builder 2009 or later) event will occur.

  If there is any invalid character in the Barcode or Data (only for Delphi/C++ Builder 2009 or later) property value, the return value is false, corresponding to the OnInvalidChar or OnInvalidDataChar (only for Delphi/C++ Builder 2009 or later) event will occur.

Contents