 
BC_Bottom  Bar code located at the bottom of destination rectangle 
BC_ControlDigits  Bar code containing control characters (valid for the BC_CODE128, BC_DATAMATRIX, BC_EAN128, BC_GS1128 and BC_PDF417 bar codes only). By default, control characters are enclosed between "<" and ">". To avoid interpreting these characters as control characters, simply double the first "<":  "<C40>" = control character
 "<<AB>" = <AB> to be encoded in the bar code.

BC_CheckDigits  Bar code containing check characters (valid for the BC_CODE128, BC_DATAMATRIX, BC_EAN128, BC_GS1128 and BC_PDF417 bar codes only). If this option is selected, the BC_ControlDigits and BC_Charsets constants are automatically taken into account. 
BC_CenterH  Bar code centered horizontally in the destination rectangle. 
BC_CenterV  Bar code centered vertically in the destination rectangle. 
BC_Right  Bar code aligned to right in the destination rectangle. 
BC_Extended  Extended bar code (valid for the BC_CODE39 and BC_CODE93 bar codes only). 
BC_FormatText  Formats the text displayed for the EAN 128 or GS1128 bar codes: brackets are added around AIs in the printed text. 
BC_Left  Bar code aligned to left in the destination rectangle. 
BC_Top  Bar code located at the top of destination rectangle. 
BC_IgnoreFormatting  Ignores the brackets found in a 128, EAN128 or GS1128 bar code (valid for the BC_CODE128, BC_EAN128 and CB_GS1_128 bar codes only). The brackets allow the users to easily read the bar code but they are not drawn in the code. 
BC_Charsets  Bar code that uses one or more sets of characters in order to compress the bar code. This set of characters must be defined in the value of bar code. 
BC_NotProportional  Adjusts the bar code to the size of destination rectangle. 
BC_NoText  Displays no text below the bar code (valid for the BC_UPCA, BC_UPCB, BC_EAN13 and BC_EAN8 bar codes only). 
BC_Text  Displays the text below the bar code. The text is normalized for the BC_UPCA, BC_UPCE, BC_EAN13 and BC_EAN8 bar codes. For the other types of bar codes, the text can exceed the display border of bar code. 
New in version 28BC_TextCenter  Centers the text below the bar code. This constant is available for BC_CODE128, BC_CODE93, BC_CODE11, BC_EAN128, BC_CODE39, BC_INTER2OF5, BC_CODABAR and BC_MSI bar codes.. New in version 28 
New in version 28BC_TextRight  Justifies the text below the bar code to the right. This constant is available for BC_CODE128, BC_CODE93, BC_CODE11, BC_EAN128, BC_CODE39, BC_INTER2OF5, BC_CODABAR and BC_MSI bar codes.. New in version 28 
New in version 28BC_TextLeft  Justifies the text below the bar code to the left. This constant is available for BC_CODE128, BC_CODE93, BC_CODE11, BC_EAN128, BC_CODE39, BC_INTER2OF5, BC_CODABAR and BC_MSI bar codes.. New in version 28 
BC_Check  Bar code with check characters (valid for the BC_CODE39, BC_CODE93, BC_INTER2OF5 and BC_CODABAR bar codes only). 
BC_Vertical  Displays the bar code vertically. 
BC_90  Displays the bar code vertically. 
BC_180  Displays the bar code with a 180degree rotation. 
BC_270  Displays the bar code with a 270degree rotation. 