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Bug #7197 » spinbox_valueChanged.cpp

test to reproduce it (Wt 4) - Roel Standaert, 08/14/2019 12:57 PM

 
#include <Wt/WApplication.h>
#include <Wt/WBreak.h>
#include <Wt/WContainerWidget.h>
#include <Wt/WDoubleSpinBox.h>
#include <Wt/WPushButton.h>
#include <Wt/WServer.h>
#include <Wt/WSpinBox.h>

#include <iostream>

int main(int argc, char **argv)
{
return Wt::WRun(argc, argv, [](const Wt::WEnvironment &env) {
auto app = std::make_unique<Wt::WApplication>(env);
auto root = app->root();

auto intSpin = root->addNew<Wt::WSpinBox>();
auto dblSpin = root->addNew<Wt::WDoubleSpinBox>();

root->addNew<Wt::WBreak>();

auto connectBtn = root->addNew<Wt::WPushButton>(Wt::utf8("Connect signals"));

connectBtn->clicked().connect([intSpin, dblSpin]{
intSpin->valueChanged().connect([](int value){
std::cout << "spinbox value changed to: " << value << '\n';
});

// intSpin->changed().connect([]{});

dblSpin->valueChanged().connect([](double value){
std::cout << "double spinbox value changed to: " << value << '\n';
});

// dblSpin->changed().connect([]{});
});

return app;
});
}
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