Multiple Bugs and Suggestions [7.6.5.0 (Lang: EN)]

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Bug [7.6.5.0 (Lang: EN)]: Empty information dialog box
Steps to reproduce:
1) Launch QR-Code Creator (QR-Code Creator.lnk/QR Code Creator.exe)

2) In the main window, erase the default Input ("My first QR code!") or click "Empty"

3) Click the "Refresh" button4) An empty information dialog box appears
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Bug [7.6.5.0 (Lang: EN)]: NilObjectException when Input exceeds 7089 Chars
Steps to reproduce:
1) Launch QR-Code Creator (QR-Code Creator.lnk/QR Code Creator.exe)

2) In the main window, fill the Input with more than 7089 Chars

3) An error dialog box appears with an unhandled NilObjectException exception and QR-Code Creator shuts down

Fix: Check the length of the Input before attempting to process it
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Bug [7.6.5.0 (Lang: EN)]: Clicking "Empty" should remove the generated QR code.
Steps to reproduce:
1) Launch QR-Code Creator (QR-Code Creator.lnk/QR Code Creator.exe)

2) In the main window, erase the default Input ("My first QR code!") or click "Empty"

3) The generated QR code for the previous Input remains on-screen
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Bug [7.6.5.0 (Lang: EN)]: The "Your QR-Code" mouseover ToolTip displays with no QR code image present
Steps to reproduce:
1) Launch QR-Code Creator (QR-Code Creator.lnk/QR Code Creator.exe)

2) In the main window, erase the default Input ("My first QR code!") or click "Empty"

3) Click the "Refresh" button

4) An empty information dialog box appears; click "OK" to close it

5) Mouseover the region where the QR code image once was and the "Your QR-Code" mouseover ToolTip displays

Fix: If no QR code image is displayed, don't display the "Your QR-Code" ToolTip
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Suggestion: Get rid of the default "My first QR code!" Input upon launching QR-Code Creator

It might be OK to have it for the very first launch ever but it's annoying to see it upon every re-launch
Instead, maybe consider having no auto-gernated QR displayed (just a grey area) but set the focus on the Input so users can start typing
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Zitat

A QR code cannot handle so many characters. Do you enter these characters in the text box? I need to know how to get the mistake to intercept it.

Yes, I was entering the characters in the Input text box. My clipboard contained 417 "A" characters, and was using Ctrl+V (paste) to paste into the Input textbox. I repeatedly applied the pasting of characters to see the "Chars" count grow (417, 834, 1251, ...) until I got to 7089 (17 times). Once there, if i typed one more "A", the application would receive the NilObjectException.

Zitat

It will stay that way. Because I don't want to represent an empty grey area.

Maybe instead of having an empty grey area, you could model it to something similar like CodeTwo's QR Generator which just instructs a user to enter some Input. https://i.postimg.cc/DZ3Wsnsv/2026-06-15-110607.png

Or maybe have a large 350x350 semi-opaque logo of your program instead of a drab grey area. I just think clearing the Input or clicking "Empty" should remove the last recently-generated QR code image. But, that's a design choice you've seemingly settled on.

Cosmetic Bug [7.6.5.0 (Lang: EN)]: "Chars" (plural) count and the number 1 (singular)
Steps to reproduce:
1) Launch QR-Code Creator (QR-Code Creator.lnk/QR Code Creator.exe)

2) In the main window, erase the default Input ("My first QR code!") or click "Empty" and begin to type out any Input

3) The status at the bottom will display "0 Chars", "1 Chars", "2 Chars"... with only a single character, it should read "1 Char" 

This is just a very minor detail but correcting it makes your application slightly more polished. Psuedo-code:

charsLabel = charCount + " Char" + (charCount != 1) ? "s" : "";

or

charsLabel = charCount + " Char" + (charCount == 1) ? "" : "s";