QwtsSlider Scale Origin

[fruzzo]

Hi,
how can I get the exatly width (see the picture) between the QwtSlider widget bounding and the scale oprigin position (e.g. 0)?

width.JPG

[Uwe]

The QwtScaleDraw object of the slider knows the ticks and how to map a value to its widget position.

Uwe

[fruzzo]

ok...but when I try to use the method const QwtScaleDraw * scaleDraw () const, comiling I have an error, the compiler recognize it as private!

[Uwe]

Obviously you want to access the non const method, that is private. Call the const method instead.

Uwe