Call a function every time a variable is changed
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I believe there is a way if it is a "property" inside a QML component, then you get a onVariableNameChanged and you can call whatever you would like there
Ex:
property string myVar: "default_value"
onMyVarChanged: { // call your function here }
Hope this helps!!
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No, there is not. If you want that, then you should make your variable private to a class, and create a public accessor method for it. So:
@
//old situation
public:
int value;//somewhere in code
value = 10;//new situation:
private:
int value;
public:
void setValue(int newValue) {value = newValue; /* whatever else you need to do*/}//somewhere in code:
setValue(10);
@ -
Oh, haha one was using QML, the other Qt C++,
If you want to go the C++ route there is this page "Qt Bindings":http://doc.qt.nokia.com/4.7-snapshot/qtbinding.html
Which may help you... I believe they use signals inside the C++ code as well as using the Q_PROPERTY macro