ColorLevelsDialog 0 0 400 300 Change Color Levels Qt::Horizontal 40 20 Channel(s) RGB Red Green Blue Qt::Horizontal 40 20 Qt::Horizontal 40 20 Input levels -16777216 16777216 -16777216 16777216 255 Qt::Horizontal 40 20 0 0 QFrame::StyledPanel QFrame::Raised Qt::Horizontal 40 20 Output levels false 0 -16777216 16777216 -16777216 16777216 255 Qt::Horizontal 40 20 Qt::Horizontal QDialogButtonBox::Apply|QDialogButtonBox::Close buttonBox accepted() ColorLevelsDialog accept() 248 254 157 274 buttonBox rejected() ColorLevelsDialog reject() 316 260 286 274 outputLevelsCheckBox toggled(bool) outputLevelsFrame setEnabled(bool) 96 190 190 190