每週我們都會深入讀者的郵箱，拿出提示和竅門來分享。本週我們將介紹一個超級簡單的調整視窗大小的快捷方式，如何在多監視器設定中包含滑鼠，以及如何檢查電池配置。

單擊一次即可垂直擴充套件視窗

讀者查爾斯在俄亥俄州撰文，分享了一個對我們來說全新的妙招：

When you need to maximize the height of a window (but not the width) you can do so by placing the cursor over the upper or lower edge of the window. When it becomes a little resize arrow, double click. The window will instantly extend to the full height of the monitor (but not the width). I discovered this trick totally by accident and have found it useful ever since.

這也是一個很有用的把戲！我們甚至從未聽說過它，但已經看到了幾個例項，證明它是非常有用的。你也可以在Windows7下，輕觸螢幕中上邊緣的一個視窗來執行類似的中間停靠和擴充套件技巧。

將滑鼠置於多監視器設定上

史蒂夫寫了他的多監視器困境和他發現的解決方案：

I love my multi-monitor setup but there are times when it can be a pain. Specifically when playing certain computer games or running certain legacy applicati*** I have to use for my job. Games and older applicati*** often don’t know what to do with a multi-monitor setup and all sorts of weird stuff can happen. I’ve had the mouse get stuck on the secondary monitor, had applicati*** crash when the mouse went from the primary monitor to the secondary monitor, and had the mouse outright disappear once it left the primary monitor. Even when it’s not that drastic it’s annoying when you expect a “hard edge” while playing a game and the mouse just zips right out of the frame and vanishes.

My solution is an open source app I found called Mousenitor. It’s a simple little application that allows you to effectively “jail” the mouse. You can set boundaries, toggle it with hot keys, and even set up profiles for different apps and games. It’s saved me from so many headaches! Speaking of headaches, don’t set up a profile that restricts the mouse to the primary monitor, then put the Mousenitor control panel on the second monitor, and then turn it on. That was quite a puzzle to solve.

偉大的解決方案史蒂夫！我們見過簡單的應用程式，只需將滑鼠貼在主顯示器上，但這是我們第一次看到一個應用程式支援配置檔案和這麼多的變數。很好的發現。

瞭解電池配置

上週，我們分享了一個關於旋轉電池以擠出額外生命的讀者提示。吉姆寫了一些額外的洞察為什麼這個技巧可能沒有你希望的那麼有效，以及如何測試它是否在你的裝置上工作。

The battery “rotating” idea does not make sense electrically unless the batteries are in parallel (rarely used that way). Nearly all battery circuits are in series (which you can tell if their polarity is reversed one from another within the battery compartment). The resistance of a weak battery in a series circuit is the same no matter where it is in the circuit. Possibly, the contacts are dirty and moving them around “cleans” them a little which provides for a better connection between the contacts and the batteries.

You can also tell if the batteries are in series with a cheap voltmeter (it’s a multimeter set for measuring voltage, buy on that measures up to 30 volts to be on the safe side). They’re available at Ace Hardware or similar stores. Place the positive (red) probe at the positive terminal of one battery contact and negative (black) probe on the negative pole of the battery contact at the other end. If the voltage is 2, 3 or 4 times (depending on the number of batteries) the voltage of a single battery (usually about 1.5v for AA or AAA) that is a series circuit and rotating the batteries will have negligible effect.

感謝您在Jim中的文章，雖然我們確信在原始提示中撰寫文章的讀者在提示中獲得了好運，但很高興聽到背後的科學知識，以及我們如何測試我們的裝置，看看電池旋轉是否有任何影響。

有什麼小竅門可以分享嗎？給我們發郵件[email protected]你可能會在頭版看到你的建議。