[Qt-interest] line edit focus problem

Yuvaraj R yuvaraj at ongobiz.com
Thu Jul 16 14:55:54 CEST 2009


it asking me to add QEvent header file.


THanks

Yuvaraj R

On Thu, Jul 16, 2009 at 6:24 PM, Yuvaraj R <yuvaraj at ongobiz.com> wrote:

> Hi All
>
>  I override the MainWindow event filte function..
>
> By
>
> bool Con_Main ::eventFilter(QObject *o,QEvent *e)
>
> {
>
> if(e->type == QEvent::KeyPress)
>
> {
>
> e->ignore}
>
> }
>
> . it is giving  conflicting errors.errors..
>
> what mistake i have done here..
>
> please suggest me
>
>
> Thanks
>
> Yuvaraj R
>
>
>
>
>
>   On Thu, Jul 16, 2009 at 5:41 PM, Tony Rietwyk <
> tony.rietwyk at rightsoft.com.au> wrote:
>
>>
>>
>>  -----Original Message-----
>> Hi All
>>
>> I have set the line edit text  as default by "Dial number"
>>
>> When i pressing the keys in keyboard ,then  i am clearing the  lineedit
>> text and inserting the pressed key value in line edit..
>>
>> if i set lineEdit in setfocusby default..
>>
>> that time any key events is not uptating ..
>>
>> if diable the forucs for line edit.. key event are updating..
>>
>> Sample code..
>>
>> ui.lineEdit.setText("Dial Number")
>>
>> void MainWindow::keyPressEvent(QKeyEvent *e)
>> {
>>    switch(e->key)
>>      {
>>         case Key_0 :
>>                              if(ui.lineEdit.Text == "Dial Number")
>>                               {
>>                                ui.lineEdit.clear }
>>           ui.lineEdit.insert("0");
>>            break;
>>       case Key_1 :                               if(ui.lineEdit.Text ==
>> "Dial Number")
>>                               {
>>                                ui.lineEdit.clear }
>>           ui.lineEdit.insert("1");
>> }
>> }
>>
>> Please help , what's wrong with me
>>
>>
>> Thanks
>>
>> Yuvaraj R
>>
>>
>> There is nothing wrong!
>>
>> You are listening to the events on the main window, and it only gets the
>> key strokes when the edit doesn't have focus.
>>
>> I suggest to either:
>>
>> - use the same code, but subclass from QLineEdit,
>> - or use
>>
>>     ui.lineEdit->installEventFilter( this );
>>
>> and override the eventFilter method in MainWindow.
>>
>> I normally take the second option.
>>
>> Tony.
>>
>>
>> _______________________________________________
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>> Qt-interest at trolltech.com
>> http://lists.trolltech.com/mailman/listinfo/qt-interest
>>
>>
>
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