数字集成电路（设计透视） 包括书、ppt及答案

yyxl

Gives the keyboard input focus to this widget (or its focus proxy) if this widget or one of its parents is the active window. The reason argument will be passed into any focus event sent from this function, it is used to give an explanation of what caused the widget to get focus. If the window is not active, the widget will be given the focus when the window becomes active.

First, a focus out event is sent to the focus widget (if any) to tell it that it is about to lose the focus. Then a focus in event is sent to this widget to tell it that it just received the focus. (Nothing happens if the focus in and focus out widgets are the same.)

expedition11

thanks

dikedisk

非常需要的啊

kellyh

答案MS很乱呃 看不懂

denhuai

谢谢分享了

0194a

有答案！

alexpanait

sharing thx, thx .

g081110104

450663807

有中文版本的就好了，可以对照的看。

ydsbanban

答案全吗