Whats the basic difference between the QtCreator and QtDesigner

[premjith]

im a newbie in Qt, i just want to know the basic difference between the QtCreator and QtDesigner. there is one Design tab in QtCreator , whats difference between that design an QtDesigner. I want to develop a Qt Desktop application which compatible for both windows and linux.

Thanx in advance

[jobor]

Qt Designer is for designing Dialogs and Main Windows (.ui files).
Qt Creator is a full IDE for developing your program.
It comes with an integrated version of Qt Designer.