Customize Barcode Color Scheme in C++
This article describes the options provided by Aspose.BarCode for C++ to adjust the color scheme of a barcode image and its main elements.
Overview
Generally, barcode images are created in black and white colors. To generate barcode labels of different colors, Aspose.BarCode for C++ enables customizing system RGB color for key barcode elements, such as:
- Background
- Bars
- Borders
- Barcode text
- Top and bottom captions
Set Barcode Background Color
Setting color for barcode background can be done by initializing the BackColor property of BaseGenerationParameters class. The default background color is set to White.
The barcode image generated with adjusted background color settings (Color.Green) is demonstrated below.
// The path to the documents directory.
System::String dataDir = RunExamples::GetDataDir_ManageBarCodesImages();
System::String dst = dataDir + u"colorize-barcode_out.jpg";
// Instantiate barcode object and differnt properties
System::SharedPtr<BarcodeGenerator> generator = System::MakeObject<BarcodeGenerator>(EncodeTypes::Code128, u"1234567");
generator->get_Parameters()->set_BackColor(System::Drawing::Color::get_Yellow());
generator->get_Parameters()->get_Barcode()->set_ForeColor(System::Drawing::Color::get_Blue());
generator->get_Parameters()->get_Border()->set_Color(System::Drawing::Color::get_Red());
generator->get_Parameters()->get_Barcode()->get_CodeTextParameters()->set_Color(System::Drawing::Color::get_Red());
generator->Save(dst, BarCodeImageFormat::Jpeg);
System::Console::WriteLine(System::Environment::get_NewLine() + u"Barcode saved at " + dataDir);
Set Bar Color
To customize the color of bars in a barcode image, it is necessary to set the value to the BarColor property of BarcodeParameters class. The default bar color is Black.
The following image represents the barcode label generated with the customized bar color settings (Color.Green).
// The path to the documents directory.
System::String dataDir = RunExamples::GetDataDir_ManageBarCodesImages();
// Instantiate barcode object
{
System::SharedPtr<BarcodeGenerator> generator = System::MakeObject<BarcodeGenerator>(EncodeTypes::Code128, u"TEXT");
// Clearing resources under 'using' statement
System::Details::DisposeGuard<1> __dispose_guard_0({ generator });
// ------------------------------------------
try
{
generator->get_Parameters()->get_Barcode()->set_FilledBars(false);
generator->Save(dataDir + u"ControlBarsFillingofOneDBarcodes_out.png");
}
catch (...)
{
__dispose_guard_0.SetCurrentException(std::current_exception());
}
}
Set Barcode Border Color
It is possible to vary barcode border color by setting the Color property of class BorderParameters. By default, the color of borders is set to Black. The barcode image provided below has been created setting border color to (Color.Green).
Set Barcode Text Color
The color of barcode text that may be placed on a barcode image can be adjusted as well. To do this, it is required to initialize the Color property in property group CodeTextParameters. By default, the color of barcode text is set to Black. The sample barcode image shown below has been generated with the customized barcode text color setting (Color.Green).
// The path to the documents directory.
System::String dataDir = RunExamples::GetDataDir_ManageBarCodesImages();
// Instantiate barcode object and set differnt barcode properties
System::SharedPtr<BarcodeGenerator> generator = System::MakeObject<BarcodeGenerator>(EncodeTypes::Code128, u"1234567");
generator->get_Parameters()->get_Barcode()->get_CodeTextParameters()->set_Color(System::Drawing::Color::get_Red());
generator->Save(dataDir + u"barcode-SetForeColorText_out.jpg", BarCodeImageFormat::Jpeg);
System::Console::WriteLine(System::Environment::get_NewLine() + u"Barcode saved at " + dataDir);
Set Barcode Caption Color
Barcode images created using Aspose.BarCode for C++ may have top and/or bottom captions according to the will of a developer. The color of these elements can be adjusted by setting the value to the TextColor property in property group CaptionParameters. The following barcode images have been generated using the customized caption color settings (Color.Green).
| Adjusting Caption Color | |
|---|---|