Bar Code DLLs Bar Code DLLs

Contents:Contents:.......................................................................................................................................... iLicense Agreement: ....................................................................................................................... 1Introduction..................................................................................................................................... 3Installing The Bar Code DLLs On Your Computer....................................................................... 4Getting Started................................................................................................................................ 4Overview of graphics programming in Windows ........................................................................ 5All about Windows MetaFiles ........................................................................................................ 6How to use the TAL Bar Code Libraries ....................................................................................... 7Function names and DLL files for creating different bar code symbologies. ................................ 716 Bit DLL Declarations and Type Structures.............................................................................. 9Sample Visual Basic (16 bit) DLL Function Declaration Statements: ........................................... 9Sample C/C++ (16 bit) DLL Function Declaration Statements: .................................................... 916 Bit Visual Basic TALBarCode Type Structure ........................................................................ 1016 Bit MetaFilePict Type Structure.............................................................................................. 1016 Bit C/C++ TALBarCode Type Structure ................................................................................. 1116 Bit TALBarCode Type Structure Elements............................................................................. 1216 Bit Visual Basic TALPDFBarCode Type Structure................................................................. 1316 Bit C/C++ TALPDFBarCode Type Structure .......................................................................... 1416 Bit TALPDFBarCode Type Structure Elements ..................................................................... 1532 Bit DLL Declarations and Type Structures............................................................................ 16Sample Visual Basic (32 bit) DLL Function Declaration Statements: ......................................... 16Sample C/C++ (32 bit) DLL Function Declaration Statements: .................................................. 1632 Bit Visual Basic TALBarCode Type Structure Declaration..................................................... 1732 Bit Visual Basic MetaFilePict Type Structure Declaration...................................................... 1732 Bit C/C++ TALBarCode Type Structure Declaration .............................................................. 1832 Bit TALBarCode Type Structure Elements............................................................................. 1932 Bit Visual Basic TALPDFBarCode Type Structure Declaration.............................................. 2032 Bit C/C++ TALPDFBarCode Type Structure Declaration....................................................... 2132 Bit TALPDFBarCode Type Structure Elements ..................................................................... 22TALBarCode Data Type Member Descriptions and Notes.......................................................... 23Parameters Specific to the TALPDFBarCode Type Structure .................................................... 28Preferences Options and Constants: .......................................................................................... 30Bar Code Dimensions .................................................................................................................. 33Bar Code Basics ........................................................................................................................... 34How A Bar Code Reader Works .................................................................................................. 35How To Produce Readable Bar Codes ....................................................................................... 36A Word About Graphic File Formats........................................................................................... 37Bitmaps (Raster Graphics).......................................................................................................... 37Vector Graphics and MetaFiles................................................................................................... 38About The New Enhanced MetaFile Format ............................................................................... 39Special Considerations and Incompatibilities ........................................................................... 40Pasting Bar Codes From The Clipboard Into 32 bit Programs.................................................... 40Printing Bar Codes On A Dot Matrix Printer................................................................................ 41Bar Code Symbology Descriptions and Rules........................................................................... 42CODE 39 (Normal, Full ASCII and HIBC versions)..................................................................... 42UPC-A, UPC-E, and UPC Supplementals .................................................................................. 44i