1 If you are still looking C ++ code with the old version vs, in order to protect apes eye, or adjustment to the background color of the bar code,
Relatively easy method of pro-test (for all versions): https://jingyan.baidu.com/article/020278116aca8c1bcc9ce590.html
Tone main operations: 84, Saturation: 117, brightness: 205, click 'Add to Custom Color ", and then to add the selected color just in custom colors in the lower left corner
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