If in Set PIN action, the new and old PINs are the same, don't do anything. Save time :)

Add support for utf-8 characters that will need several key presses.

Add an option to export to encrypted credentials file using AES.

Add some kind of messages to let the user know when the GUI is doing some action that takes time, like writing to the device for example.

Little arrows doesn't work. you can't up/down credentials to choose 1st place or not..

Make it work on windows for god sake! (if it doesn't alerady)

I'm trying to follow your build instructions but I'm stuck at:
https://ibb.co/ictsYw
https://ibb.co/cN4zDw

What do I do next?

Notify use after setPin or setKeyboardLayout or writeCredentials has finish (maybe a text can be added on the console).

I have changed the pin to something longer then 4 digits and it is now locked and unable to accept more the 4 digits.

The with German keyboard layout the three characters < | > are not working. They are on key position 45 of a 102 or 106 key keyboard https://www.ibm.com/support/knowledgecenter/en/ssw_aix_61/com.ibm.aix.keyboardtechref/doc/kybdtech/Key.htm
The current codes are not generating any character. I tried on Ubuntu 16.4 and Windows 10.
Current DE-keymap is:
"<" = 3
"|" = 67
">" = 131

From other codes about German keymap for Arduino I found that the "<" key has code 0x64 = 100 (like in original code), but this generates a "{".

Implement the Set PIN functionality so the user can change the default PIN.
Take care or let know the user: reading, encrypting with the new key and writting or everything will be lost.

Add a button to automatically add delays without havinig to introduce the syn char \s.
(Maybe introducing direcly the time?)

Display ä instead of @

Add support for translations and at least the spanish language.

Test the GUI on different resolutions and Operating Systems to see how Qt shows everything and solve all the graphical issues.

I need a way to securely store/backup the passwords encrypted too. Thus I would like to propose to add e.g. GPG encryption or any other suitable method to the export and import file buttons.

Add PIN checks on (encryption) write and (decryption) read.
Also on set PIN and set keyboard layout functionalities.

Perform actions if PIN is not correct.

I can read and write one entry, but not two, then I get:

*** Error in `/home/jens/linux64/./MemTypeManager': malloc(): memory corruption: 0x000055f15de96500 ***
Followed by a whole lot of rows.

Even if I can only read one entry, I can write many. The test is performed on Mint 18.1 with credentials that only uses a-z, \t, \n. I have tried with two different sticks sticks. The software used is from the precompiled folder linux64.

If I create lots of credentials (memory is > 90% occupied) then GUI would crash if I try to upload.
This happens in Ubuntu 17.04.
In Puppy Linux works fine.

I tried on Ubuntu 16.04, Arch, and OS X. I get the same error on all of them.

I enter the correct pin, click on the read button, it goes up to 99% and crashes, with this error message:

*** Error in /home/user/Downloads/MemTypeTool/release/linux64/./MemTypeManager': malloc(): memory corruption (fast): 0x00005628592ae500 ***

I got the linux64 folder by doing tar xvfz MemTypeTool-1.0.0-linux_x64.tar.gz, and I ran MemTypeManager.sh

Add an edit box in a "console" mode to see the messages written by the memtype, like wecome message and PIN unlock.

When asking for the PIN for decrypting or encrypting the data, validate it and let it know if it's wrong instead of using it to encrypt or decrypt and get unusable data.

I compiled the C++ version of this and have been testing it out for my new memtype (just got it today :) ) and have noticed that when entering a PIN into the textbox it stays there as long as the window is open. This seems quite risk to just leave it and could lend the risk of someone click the show button and finding your pin.

I think it would be best to clear the textbox every time an action which requires is done, reads, writes, exports, etc

Changing the PIN from 0000 to something else makes the software crash. If restarting the program and then trying the new PIN does not work, but the old 0000 works. When reading and 100% is reached the software crashes again.

If setting the PIN again in the same way as above, it crashes again, but this time it starts writing before crashing, and if then starting the software again it is possible to use the software with the new PIN and the database is readable again.

Its says on hackaday.io "Easy to generate keymaps, edit the example file and generate the one for your keyboard map and language."
How do we do this?

Sometimes When pressing the "+" icon, no dialog appears. IT turns out that it is hidden behind mainWindow. Restarting the software does not help. The dialog will not appear in front of the mainWindow until it is moved there manually, but after that it will stay in front even when restarting the software. This is not a great issue, but it took me some time to figure out the first time it happened.