![transparent barcode transparent barcode](https://cdn2.iconfinder.com/data/icons/barcode-1/154/short-barcode-numbers-512.png)
When an option has not been set, its default value is returned. If called with no parameters, returns a hash consisting of the values of all the options (hash ref in scalar context). If called with more than one parameter, treats the parameters as name/value pairs and sets those option values accordingly. If called with only one parameter, retrieves the value for that parameter.
![transparent barcode transparent barcode](https://images.vexels.com/media/users/3/157867/isolated/preview/d0cdb8392ac85ff07c017c4dbde0711e-barcode-isolated-by-vexels.png)
#TRANSPARENT BARCODE ARCHIVE#
You can obtain it from the CPAN (Comprehensive Perl Archive Network) repository of your choice under the directory authors/id/LDS.
#TRANSPARENT BARCODE INSTALL#
To use the the GD module, you will need to install it along with this module. You can use the barcode() method to get a string of "#" and " " (hash and space) characters, and use your own image-generating routine with that as input. If the GD module is not present, you can still use the module, but you will not be able to use its functions for generating images. In order to ensure you have a sufficiently modern installation of the GD module to do both GIF and PNG formats, we require version 2.18 of GD (which in turn requires libgd 2.0.28) or higher. Most browsers have no trouble with PNG files. Starting with version 1.20, and ending with 2.0.28 (released July 21st, 2004), GD and the underlying libgd library could not generate GIF files due to patent issues, but any modern version of libgd (since 2004) can do GIF as the patent has expired. Using the libgd library, GD can generate files in PNG (Portable Network Graphics) or GIF (Graphic Interchange Format) formats. If you wish to generate images with this module you must also have the GD module (written by Lincoln Stein, and available from CPAN) installed. If this requirement is not important you can generate smaller image using optional parameters, described below. The default settings for this module produce a large image that can safely be FAXed several times and still scanned easily.
#TRANSPARENT BARCODE CODE#
The application which spurred its creation was an expense report tool, where the employee submitting the report would print out the web page and staple the receipts to it, and the Accounts Payable clerk would scan the bar code to indicate that the receipts were received. The intended use of this module is to create a web page with a bar code on it, which can then be printed out and faxed or mailed to someone who will scan the bar code. It can generate images in PNG or GIF format using the GD package, or it can generate a text string representing the barcode that you can render using some other technology if desired. StartB 0xfd StartC 0xfe Stop 0xff DESCRIPTIONÄ«arcode::Code128 generates bar codes using the CODE 128 symbology. They are inserted automatically as needed by this module. Warning: Using the CodeA, CodeB, CodeC, StartA, StartB, StartC, and Stop codes may cause your barcodes to be invalid, and be rejected by scanners. They are assigned to high-order ASCII characters purely arbitrarily for the purposes of this module the values used do not reflect any part of the CODE 128 standard. Here is the complete list of the exportable characters. Examples: use Barcode::Code128 qw(FNC1 FNC2 FNC3 FNC4 Shift) To have this module export one or more of these characters, specify them on the use statement or use the special token ':all' instead to include all of them. For example if you are using the EAN-128 or UCC-128 code, the string to encode begins with the FNC1 character. However there are a number of constants that represent special characters used in the CODE 128 symbology that you may wish to include. Perl 5.004, Carp, Exporter, GD (optional) EXPORTSÄ«y default, nothing. Barcode::Code128 - Generate CODE 128 bar codes SYNOPSIS use Barcode::Code128