#include <QApplication>
#include <QLineEdit>

int main(int argc, char *argv[])
{
	QApplication app(argc, argv);

	QLineEdit* p = new QLineEdit();
	p->setInputMask("00:0");
	p->setText("  1");
	p->setSelection(3, 1);
	p->show();

	return app.exec();
}