QKeySequence - get each QKey

[thomaspu]

I've got a QKeySequence and I want to get each individual QKey... I've been messing with a few ideas, but everything I've come up with seems really messy.

I need the QKeySequence because I'm trying to setup a windows global hotkey for my application using the windows RegisterHotKey function. I know that I can test the Ctrl, Alt, Shift and Windows key modifiers with the QKeySequence->matches( ...) function. But how do I go about getting the main key from a "Ctrl+Shift+F10" key sequence?

Thanks,
Paul

[triperzonak]

did you try using QWidget::grabKeyboard ()?

http://doc.trolltech.com/4.4/qwidget.html#grabKeyboard

[thomaspu]

triperzonak: that QWidget:: grabKeyboard() is for getting the keys pressed. I already have the keys in my QKeySequence. How do I get each individual key out of the QKeySequence?

Paul

[triperzonak]

then its a matter of string manipulation..

since you can transfer your sequence to Qstring
QString QKeySequence::toString ( SequenceFormat format = PortableText )

and you know that it will be seperated by + sign and , (comma)
http://doc.trolltech.com/4.4/qkeysequence.html#toString

try playing with it like

QStringList keys= strsequence.split(",") or QStringList keys= strsequence.split("+") ;
do this by conditions
http://doc.trolltech.com/4.4/qstring.html#split

the keys then will be listed to QStringList

or if you know that their will be only 1 combination like CTR+ALT+A

you can use key= strsequence.right(strsequence.lastIndexOf("+"));

and many more solutions just play with it..

http://doc.trolltech.com/4.4/qstring.html#QString

[thomaspu]

I've already been down that route of using the QKeySequence toString method. Sure, it comes out in a format like Ctrl+Shift+ScrollLock but that doesn't transfer over easily into the corresponding Qt::key_scrollLock. Unless I do a gigantic bunch of if statements...

QString key = "ScrollLock";   //for example sake
if ( key == "A")
  return Qt::Key_A;
if ( key == "B")
  return Qt::Key_B;
...
if ( key == "F1")
  return Qt::Key_F1;
...
if ( key == "ScrollLock")
  return Qt::Key_scrollLock;

QString key = "ScrollLock";   //for example sake
if ( key == "A")
  return Qt::Key_A;
if ( key == "B")
  return Qt::Key_B;
...
if ( key == "F1")
  return Qt::Key_F1;
...
if ( key == "ScrollLock")
  return Qt::Key_scrollLock;

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That really seems a bit tedious and messy, cause I would need to do that for each and every possible key the user could press. What I'm hunting for is a quicker way. I wonder if I could do something like:

QKeySequence seq = QKeySequence( "Ctrl+Shift+ScrollLock");
int modifiers = 0xFF00;
modifiers &= seq;  //mask out modifiers
int qKey = 0x00FF;
qKey &= seq;

QKeySequence seq = QKeySequence( "Ctrl+Shift+ScrollLock");
int modifiers = 0xFF00;
modifiers &= seq;  //mask out modifiers
int qKey = 0x00FF;
qKey &= seq;

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Ultimately for the RegisterHotKey() I need to translate the QKeySequence into modifiers (that part is easy) and into the individual keys as virtual keys (the MS way).

Paul