04 QT设置背景色

#include <QPalette> #include <QColor> void MyForm::set_form_color(){ this->setAutoFillBackground(true); QPalette pale = this->palette(); QColor BKG_COL(0,0,0); pale.setColor(this->backgroundRole(),BKG_COL);//正确写法1 //pale.setColor(this->backgroundRole(),Qt::blue);//正确写法1 //pale.setColor(QPalette::Window,Qt::darkRed);//这种写法没有效果 this->setPalette(pale); }