Widget panel
template<bool HasBackground> class panel; 
This widget is an area where you can put other widgets which become children of the panel. There are actually two kinds of panel depending on the selected template parameter:
-
panel<true>will transfer all the pixels from its rectangle to the screen, thus having effectively a background. -
panel<false>will transfer only the pixels from the children to the screen, thus lacking effectively a background.
The usage in your code is the same, doesn't matter what you specify in the HasBackground template parameter.
nana::panel<true> myPanel( fm );
nana::label myLabel( myPanel );
// position label in panel
myLabel.move( { 10,10, 100, 25 } )
// position the panel, label moves along with it
myPanel.move( {10,10,200,50} }