QT implementation disable shortcut key

Premise points

When we use QDialog when , All cross-border pieces are opened by default , In the process of my use , Suddenly found that esc You can also close the page , When I thought it was a simple way , My colleague told me not to , There will be too many troubles in the later use . therefore   I'll summarize about QDialog  Turn off using shortcut keys .

for example  esc

During the query process, we found that , When pressed Esc Key time , Will be executed by default reject() function , But this function and its click function are the system default , So we need to rewrite the function , I found an example in the process of searching （

If you are interested, you can open it

）, Post in this post , He needs to rewrite keyPressEvent and reject These two functions , And in his post , It's not just forbidden esc Shortcut to .

The code I use ：

.h


protected:
 virtual void keyPressEvent(QKeyEvent *event);


.cpp

switch (event->key())

 {

 case Qt::Key_Escape:

 break;

 default:

 QDialog::keyPressEvent(event);

 }


This method is simpler than the one on the link above , It only needs to use a function to esc Shortcut key to disable .

Next, we will show some of his commonly used methods

Qt::Key_Escape Esc key

Qt::Key_Tab Tab key

Qt::Key_Backtab Tab Completion key

Qt::Key_Backspace backspace

Qt::Key_Return Return key

Qt::Key_Enter Enter key

Qt::Key_Insert Insert key

Qt::Key_Delete Delete key

Qt::Key_Pause Pause key

Qt::Key_Print Screenshot key

Qt::Key_SysReq PrtSc

Qt::Key_Clear Clear key

Qt::Key_Home Home key

You can suit the remedy to the case in the process of using , Use what you need , You don't need to write it all in a long speech . Just use it in the same way as my example , stay switch  Of case Use in , And write the corresponding content below .

summary

The above part is today's update , If there is something wrong, please give me more advice .