[bug] Qt: QPrintDialog: cannot be used on non-native printers [macOS]

[patricklodder]

Bug Report

Current behavior:
When trying to print paper wallets on MacOS (Ventura) x86_64 or arm64 with the released Dogecoin QT binary, nothing visually happens, and an error is recorded in debug.log for every attempt to open the printer screen:

QPrintDialog: Cannot be used on non-native printers

However, when using binaries that are compiled natively with brew dependencies, the print dialog does show.

Expected behavior
When the "so print" button on the paper wallet screen gets clicked, a print dialog appears.

Steps to reproduce:

1. File->Print Paper Wallets
2. Press the "So Print" button

3. Printer dialog does not appear
4. debug.log contains a line with QPrintDialog: Cannot be used on non-native printers for each button press

Dogecoin Core version:
Observed with both v1.14.6 and 1.14.7-dev at 86d754c when cross-compiled.

Machine specs:

• OS: macOS Ventura
• CPU: x86_68 and arm64
• Installed Printers: HP Color Laserjet MFP M477fdw

[patricklodder]

Added label help wanted: we need testers to see if this can be reproduced on:

• Windows
• Linux x86_64
• Linux aarch64

[computerVA]

I'm not having a problem printing a paper wallet on Windows with Core v1.14.6. Everything works as expected.

[daank-c]

I didn't have any problem opening the print dialog on Linux x86_64 using Dogecoin Core v1.14.6. The dialog appeared as expected when the "So Print" button was clicked.

[sasharamirez7777]

Compiled and tested 1.14.7 on Debian Sid x86_64. Cannot reproduce issue. Print dialogue appears as expected. Also tested 1.14.6 release binaries from github, on same linux system and could not reproduce issue.

SIDE NOTE: Initially I could not compile 1.14.7 due to error:

support/lockedpool.cpp:99:20: error: ‘runtime_error’ is not a member of ‘std’

I edited the lockedpool.cpp file, adding #include <stdexcept> as the error suggested, and then I was able to compile successfully.

[patricklodder]

SIDE NOTE: Initially I could not compile 1.14.7 due to error: support/lockedpool.cpp:99:20: error: ‘runtime_error’ is not a member of ‘std’

There's a pull request open for this at #3335. Could you let us know in that PR what gcc and openssl versions you have installed, so that I can try to reproduce the error?

[chromatic]

I cannot reproduce the issue on 64-bit x86 Linux. I successfully printed to a file with no error messages in the log.

Note that I have multiple printer drivers installed and configured, even though none of the printers are accessible from this network.

[daank-c]

I guess if we're noting things, I should also mention that I wasn't able to discover my printer from the print dialog, while using Linux x86_64, which I had assumed was my Chromebook denying Linux access to my USB port.

I was able to save a pdf and print it from my pdf reader.

[SaltyWord624]

No errors on Win10, will test later on 7-8 and also 11

[patricklodder]

I wasn't able to discover my printer from the print dialog, while using Linux x86_64, which I had assumed was my Chromebook denying Linux access to my USB port.

Does it work on any other app?

[computerVA]

No errors on aarch64 Linux - Bookworm 12.2 / Ras Pi 4B - Core 1.14.6

[patricklodder]

Thanks everyone, your help is greatly appreciated. We've established that this only occurs on macOS. I expect it to be likely due to a deprecation choice Apple has made in newer versions of macOS.