The string title is the name that will appear in the title bar of the window or console, depending on how the application is compiled.

The second parameter is not used.

The third parameter takes a value which depends on the compilation options. The parameter defaults to the value ILS_WINDOWTYPE_CONSOLE if compiling in console mode (that is, if the flag _CONSOLE is defined). Otherwise, it will take the value ILS_WINDOWTYPE_WINDOW. The value can be forced if necessary. A value of ILS_WINDOWTYPE_DEFAULT means that this value will be controlled via the environment variable ILS_FORCE_CONSOLE. If this environment variable is set, then the windowType used at runtime will be ILS_WINDOWTYPE_CONSOLE. Otherwise, the windowType used will be ILS_WINDOWTYPE_WINDOW. ILS_WINDOWTYPE_POP is the same windowType as ILS_WINDOWTYPE_WINDOW,except that when the window is iconized, this argument will make the window disappear and automatically pop up again as soon as there is some new output in the window. Forcing windowType to ILS_WINDOWTYPE_CONSOLE when compiling in the subsystem windows, or to ILS_WINDOWTYPE_WINDOW when compiling in the subsystem console, will cause all messages to be lost.