Qt VirtualKeyboard

代码说明：

A virtual keyboard for touch-screen application Virtual Keyboard for touch-screen devices written in C/C++ Qt, compatible for Qt 4.x and 5.x The widget works with QLineEdit, but you can modify it for your convenience. Features: click sound buttons copy/cut and paste facility echo password facility dynamic keyboard layout based on selected language move around textbox using TAB or directly click on a textbox (require subclassing as in the provided example) Dual mode keyboard: large and small zoom facility for pressed keys Supported Languages: Arabic English French German Italian Russian