We all use a huge number of programs. But often
epic feil interface flaws that are very annoying. Here I will give a set of popular, in my opinion, errors. So.
1. Help next to action buttons

Frequently encountered flaw. For example, in Word, after completing replacements, an error appears with the [OK] and [Help] buttons. I want to click on the right of these buttons and therefore I always have to think and realize that I need to make another one.
Do not do Help next to OK or Apply. For her, there is a good place at the top right.
2. Display the program at the click of the tray

Frequent problem in "asek." When you click on the flower in the tray occurs ... / Show / Hide / Show / ... window, unlike Show / Hide. The differences between these actions are that if you already have an “ICQ” open, but are blocked by another window, when you click on the “nothing happens” icon. Actually, ICQ is currently curtailed. To open you need to click again on it.
Make it so that when you click on the tray icon, the program window opens if it is not visible to the user.
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3. Inactive "cross" in the window
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An inactive cross or its absence is a flaw found in error windows or windows in deep settings. There are some windows popping up, and not even figuring out what to do with them out of habit, you click on the cross. Attempts by the programmer to “cheat” by removing the cross in fact do not lead to anything. My action in this case is cutting down the process and / or “unstart” of the program. Therefore, there is no screenshot (smile). Programmers, think about it when you write a question in a forum thread: “How can I remove a cross from a window?”.
Do not remove the cross, it is sacred.
4. Lack of scrolling with mouse wheel

Rarely enough, but still a bad luck. Popular, according to my observations, in specialized programs for computer maintenance. The most interesting thing is that the scrolling works, if you clamp, and in the clamped state, turn the wheel. This leads to a lupus on the wheel to scroll through a long list (short jerks more convenient).
Let the wheel scroll makes the window scroll - this is logical.
And the last most enchanting epic is ...
5. The inability to select the combination of Ctrl + A

Oh! .. These sounds of the Dun Dun system by pressing Ctrl + A or its modest silences cast a dismay. So, it is common in chat rooms. When you press the RMB, the item is still selected, but it cannot be done with hot keys. And how do you fight it? For example, you need to delete the message from the input field. My actions usually come down to Baaackspace or Shift + Home - Backspase + Shift + End - Backspace.
Where you can make a RMB - Select All, there should be Ctrl + A
In general, if a programmer, having remembered this article, does not allow these shortcomings in at least one future program, I will be glad that the post was written not in vain.