In this code, you start by declaring a file pointer to standard input so that you can get interactive information from the keyboard during the spell-check process.
在这段代码中，您首先要为标准输入声明一个文件指针，以便您能够在拼写检查过程中从键盘获得交互式信息。
2
They generally keep track of pointer movements and changes in input focus and adjust the enlarged view accordingly.
它们通常不断跟踪指针的移动和输入焦点的改变，然后相应地调整放大的窗口。
3
When a control has captured the mouse, it receives mouse input whether or not the pointer is within its borders.