Qt uses a layout-based approach to widget management. Widgets are arranged inthe optimal positions in windows based on simple layout rules, leading to aconsistent look and feel.Custom layouts can be used to provide more control over the positions andsizes of child widgets.The example launcher provided with Qt can be used to explore each of theexamples in this directory.Documentation for these examples can be found via the Tutorial and Exampleslink in the main Qt documentation.Finding the Qt Examples and Demos launcher==========================================On Windows:The launcher can be accessed via the Windows Start menu. Select the menuentry entitled "Qt Examples and Demos" entry in the submenu containingthe Qt tools.On Mac OS X:For the binary distribution, the qtdemo executable is installed in the/Developer/Applications/Qt directory. For the source distribution, it isinstalled alongside the other Qt tools on the path specified when Qt isconfigured.On Unix/Linux:The qtdemo executable is installed alongside the other Qt tools on the pathspecified when Qt is configured.On all platforms:The source code for the launcher can be found in the demos/qtdemo directoryin the Qt package. This example is built at the same time as the Qt libraries,tools, examples, and demonstrations.