在QT4.5编程环境下写的一个数字软键盘程序。类似计算器上的数字键盘。具体开发过程中，在没有软键盘的开发板程序开发中，可以直接拿过来使用。,QT4.5 programming environment in a number of written procedures for the soft keyboard. Similar figures on the calculator keyboard. Specific development process, the soft keyboard i

几个gtk实例，calc是计算器，tank是键盘响应移动小箭头，jumpinglabel是时钟的使用，primenumber是求最大质数，snake是利用资源文件修改控件外观。-Several gtk example, calc is a calculator, tank is the keyboard to respond to moving small arrow, jumpinglabel is the use of the clock, primenumber is to strive

linux系统环境下，利用qt4编写的数字小键盘程序代码，能够直接作为触屏输入使用 ，可以改造成一个linux下的计算器。-Linux system environment, using QT4 prepared by the small digital keyboard program code, can be directly used as input by the touch screen, can be transformed into a Linux calculator.

实现键盘输入计算器的功能的程序，非常适合初学者练习用-Keyboard input calculator function of the procedure, very suitable for beginners to practice