PowerApps: Generating and Printing QR Codes out of my PowerApp

[Anonymous]

Hi all,

I would like to generate a QR code in my powerapp and then print it from my powerapp using Label Printer (Brother PT-P710BT).
Can anyone help me with this?

[rubin_boer · Accepted solution]

hi @Anonymous 

You will need an online service to do the create the QR code for you, let suse google (https://chart.googleapis.com/chart?cht=qr&chl=)for now.

Add to textbox and and image as well as a button

• TextBox (txtQrCode) to capture the string to convert
• Image to display the converted code
• Button to print the image

Set the Image = "https://chart.googleapis.com/chart?cht=qr&chl=" & txtQrCode.Text &"&chs=100x100" (Feel free to change the size of the image but remember to make the size of image on the form and the string the same to not lose resolution.)

Set the visible of the TextBox and the Print button to Visible = Not(Parent.Printing) to prevent them on showing on the print page

Set the  Button's OnSelect = Print()

Remember to select the "Print backgrounds" in the more option section of print.

And that it.

Result

 

Hope this helps,

R

[Anonymous · Accepted solution]

Hi Robin

Thank you! It helped a lot!

I got one more question: I use a P-Touch Lablel Printer as a printer. So the result I get is this:

Do you have any idea how i can cut off the bottom part so that I waste as little label printer paper as possible?

Thank you!

Best

Lukas

[rubin_boer]

hi @Anonymous you will have to setup a page for that and select that page setting when you print.

here is an example for pdf

In my print settings i add a custom size (110 x 110)

Now when you print you will select that profile.

Second steps, create a second screen (Screen2) and set the height and width as you desire, i wil set

Height = 100

Width = 100

Copy and paste the image to this screen

On the first screen (Screen1) add the following code to the print button

Navigate(Screen2);Print();Navigate(Screen1)

When you click select the profile you created for your printer.

hope this helps,

R

[Anonymous]

Works! Thanks 🙂

This is only possible to use with a PC right?

Do you have a clue how to do that with a tablet or a mobile?

Thanks in advance!

Best

Lukas

[rubin_boer]

hi @Anonymous i haven't used this feature on mobile devices yet.

[sajarac]

Hi, Thank you very much for this. Silly question is this API deprecated? I can not get any QR code.

Thanks for your response.

[EddEscor]

Hello everyone

I have observed your comments, however I have not been able to print the QR code...

I have already created a new screen where only the QR is sent to be called according to what they commented

Navigate(Screen2);Print();Navigate(Screen1)

but when printing, the screen appears blank

[sajarac]

Hey @EddEscor , two things:
1st drop an image in the screen different than the QR Code just to verify if the print fucntion is working as expected.

2. Be sure that in the printer you enable brackground graphics.

And BTW are you generating the QR Code from Google API or similar? Just be sure that this still active

Opps. One more thing. This PFC controls are awesome. If you use any of them be sure to thank the author

https://pcf.gallery/categories#qr%20code

[EddEscor]

Hello

Thank you for your response, I tell you that I have the following app where the data is loaded

Screen  "EditScreen1"

On the next screen to look at the QR code.

Screen "Print1"

On the Print button I have the following function

Navigate(Print) & Print () & Navigate(EditScreen1)

When I press the button, it shows me the print sheet but the QR code is not displayed