7-Mavzu: Shartli va tanlash jarayonlarni dasturlash. Shartli jarayonlarni Qt muhitida dasturlash

51-rasm.QCheckBox holatlari

#include int main(int argc, char** argv) {

QApplication app(argc, argv);

QWidget wgt;

QCheckBox* pchkNormal = new QCheckBox("&Normal Check Box"); pchkNormal->setChecked(true);

QCheckBox* pchkTristate = new QCheckBox("&Tristate Check Box"); pchkTristate->setTristate(true);

pchkTristate->setCheckState(Qt::PartiallyChecked);

//Layout setup

QVBoxLayout* pvbxLayout = new QVBoxLayout; pvbxLayout->addWidget(pchkNormal); pvbxLayout->addWidget(pchkTristate); wgt.setLayout(pvbxLayout); wgt.show();

return app.exec(); }

Yuqoridagi dasturda ikkita bayroq ko'rsatkichlari - pchkNormal va pchkTristate yaratildi. Normal QCheckBox vidjeti setChecked() metodiga true parameter berilib vidjet belgilangan holatga o’tkazilgan. Tristate QCheckBox setTristate() metodiga true parameter berilib vidjet uchinchi, aniqlanmagan holatga o’tkazilgan. Keyin setCheckState() usulini Qt::