2022-07-31 02:38 PM
Hello Coders!
I have problem with slider callback - error: no match for call to '(touchgfx::Callback<Screen3View, const touchgfx::Slider&, int>) (Screen3View*, void (Screen3View::*)(const touchgfx::Slider&, int))' . Followed the guide
here on touchgfx side implementing slider, and seems callback slider routine is generating error.
here's the code
HPP FILE Screen3View.hpp
class Screen3View : public Screen3ViewBase
{
public:
Screen3View();
virtual ~Screen3View() {}
virtual void setupScreen();
virtual void tearDownScreen();
protected:
touchgfx::Callback<Screen3View, const touchgfx::Slider&, int> sliderValueStartedChangeCallback;
touchgfx::Callback<Screen3View, const touchgfx::Slider&, int> sliderValueChangedCallback;
touchgfx::Callback<Screen3View, const touchgfx::Slider&, int> sliderValueConfirmedCallback;
/*
* Callback Handler Declarations
*/
void sliderValueStartedChangeCallbackHandler(const touchgfx::Slider& src, int value);
void sliderValueChangedCallbackHandler(const touchgfx::Slider& src, int value);
void sliderValueConfirmedCallbackHandler(const touchgfx::Slider& src, int value);
};
and in Screen3View.cpp reciving error at line 4:
error: no match for call to '(touchgfx::Callback<Screen3View, const touchgfx::Slider&, int>) (Screen3View*, void (Screen3View::*)(const touchgfx::Slider&, int))'
8 |
cpp file
Screen3View::Screen3View()
{
sliderValueStartedChangeCallback(this,&Screen3View::sliderValueStartedChangeCallbackHandler);
// sliderValueChangedCallback(this, &Screen3View::sliderValueChangedCallbackHandler);
// sliderValueConfirmedCallback(this, &Screen3View::sliderValueConfirmedCallbackHandler);
}
Can you help/guide me where is the problem?
2022-09-12 12:35 AM
Hello @MP.5ozoga ,
Could you please share your project ?
So we can debug it more easily.
Thank you,
/Yoann
2022-09-13 05:04 AM
Try changing your CPP file to:
Screen3View::Screen3View() :
sliderValueStartedChangeCallback(this,&Screen3View::sliderValueStartedChangeCallbackHandler),
sliderValueChangedCallback(this, &Screen3View::sliderValueChangedCallbackHandler),
sliderValueConfirmedCallback(this, &Screen3View::sliderValueConfirmedCallbackHandler)
{
}
I get same errors when I change my code to look like yours.