How to save the QR code generated by the qrmaker control in vb as a jpg image ZOL Q&A

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How to save the QR code generated by the qrmaker control in vb as a jpg image

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Hello, you can use the general dialog box: 1. The two-dimensional code generated by the control must be displayed, 2. The control may have its own saving attribute.

CommonDialog1. DialogTitle=Save QR code
CommonDialog1.Filter = All Files (*.*)|*.*|BMP Files (*.bmp)|*.bmp|JPGE Files (*.jpg)|*.jpg
CommonDialog1. FileName=QR code
CommonDialog1.FilterIndex = 2
CommonDialog1.ShowSave
If CommonDialog1.FileName = Then Exit Sub
QRmaker1.CreateQrMetaFile hDC, CommonDialog1.FileName。

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After the QR code is generated, it can be directly sent to the front end through the interface. It does not need. jpg or. png. A network resource address does not have to have any suffix. It can also be used, mainly depending on the Content Type in the returned header information, such as Content Type: image/png

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