Sets the window icon which is often seen in title bars and taskbars.
Gives the height of a line according to the default font. You should try to use your computed font instead of this, but until May 8, 2021, this was the only real option.
Provides access to the underlying SimpleWindow. Note that changing properties on this window may disconnect minigui's event dispatchers.
Shows the window and runs the application event loop.
A dialog is a transient window that intends to get information from the user before being dismissed.