QR Barcodes

rbuser

Hi

I have been experimenting with the QR Barcodes in Report Builder, a few
questions if I may.

0. Not really a RB problem but do you have access to a list of functions
which can be called by QR Codes? I have successfully run a web page from a
QR Code and also created a text message. I am sure there must be a lot more
functions available but cannot seem to find a concise document on the
subject.

1. In RB can we remove the caption text to the QR Code, in our
application, sometimes this is useful, others not.

2. In RB can we control the size of the QR Code, no matter how small I
shrink the component on the form it seems to spring back to its previous
size.

3. I was looking at the Han-soft QR Codes mentioned in the RBWiki. In
their help file on how to use with Report Builder..

http://www.han-soft.com/releases/barcode2d/documents/f_howtouserb.html

they describe the procedure as below. However the TppReport
component knows nothing about 'ppReport1Image1.Picture.Bitmap...' or
'ppReport1Image1.Picture'

Do you have a sample report which uses their components?

Best Wishes

Philip L Jackson

extract from Han-soft manual....
Create the OnBeforePrint event function for the TppReport component.

In the event function, change the properties of the TBarcode2D component
such as Barcode, Module, and Orientation, and adjust the bitmap size of the
TppImage control in order to accommodate entire barcode symbol, then use the
DrawTo method of the TBarcode2D component to draw the barcode symbol to the
TppImage control.

For example:

var

AWidth, AHeight, ASymbolWidth, ASymbolHeight: Integer;

begin

Barcode2D_QRCode1.Barcode := '1235678';

Barcode2D_QRCode1.Module := 1;

......

Barcode2D_QRCode1.DrawToSize(AWidth, AHeight, ASymbolWidth, ASymbolHeight);

ppReport1Image1.Picture.Bitmap.Width := AWidth;

ppReport1Image1.Picture.Bitmap.Height := AHeight;

Barcode2D_QRCode1.DrawTo(ppReport1Image1.Picture.Bitmap.Canvas, 0, 0);

end;

rbuser

1. Used PrintHumanReadable property for remove caption text;
2. Impossible at the moment. I ask digital-metaphors add
RelativeModuleSize property.
And they promise consider adding a feature like this to the new barcodes
for a later release of ReportBuilder.
3. You have to put a TppImage control to your report in order to present
the barcode symbol.
ppReport1Image1 is the name of this TppImage.

But I think that RB control for QRBarcodes is native and more simple in
use.


On Fri, 20 Jun 2014 02:20:11 +0300, Philip L Jackson

rbuser

Hi

Thanks for the information

Philip L Jackson

nicocizik

Hi Philip,

0. The Wikipedia page on QR Code is a good place to start. It's "Uses"
section is fairly extensive. A Google search for QR Code Uses also
gives an abundance of information.

http://en.wikipedia.org/wiki/QR_code

1. As Dima explained, you can use the PrintHumanReadable property to
control the text accompanied with the barcode.

2. It is definitely possible to control the size of a QR Code in
ReportBuilder. The size of the QR Code is controlled by the ModuleSize
property. Each Module (or square) inside a QR Code is the same size.
You can currently adjust the ModuleSize property to get a QR Code as
closely to the correct size you need.

As Dima mentioned, a RelativeModuleSize property would make this process
easier by automatically adjusting the ModuleSize according to the
control size. This is a feature that we will consider for a later release.

3. We do not have an example of using HanSoft components, however it
appears "ppReport1Image1" is simply the name of a TppImage component
placed on a report. You would replace this with your own image name.

In the article below has an example of displaying a QRCode using a free
third party library in a similar manner. There should be no need for
this any more because QR Code is now natively supported.

http://www.digital-metaphors.com/rbWiki/RCL/BarCode/QR_Code