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This patch adjusts the various users of the 'Child' API to the changes on the account of the new non-blocking parent interface. It also removes the use of the no-longer-available 'Connection::KEEP_OPEN' feature. With the adjustment, we took the opportunity to redesign several components to fit the non-blocking execution model much better, in particular the demo applications. Issue #2120
Liquid frame buffer is an implementation of the frame buffer interface running as a client of the Nitpicker GUI server. It supports the following configuration options. The example shows the default values. ! <config ! ! <!-- enable the animated background, ! valid values are 'on' and 'off' --> ! animate="on" ! ! <!-- the initial window position and ! size of the virtual frame buffer --> ! xpos="400" ! ypos="270" ! width="500" ! height="400" ! ! <!-- set the window title --> ! title="Liquid Framebuffer" ! ! <!-- show a resize handle, ! valid values are 'on' and 'off' --> ! resize_handle="off" ! ! <!-- show window decoration (title bar and borders), ! valid values are 'on' and 'off' --> ! decoration="on" ! ! /> Because Liquid frame buffer creates the virtual frame-buffer window at start time, not at session-creation time, sufficient memory resources must be provided when starting the program. Consequently, the client does not need to donate memory for the frame buffer backing store. Liquid frame buffer supports only one client. If multiple virtual frame buffers are needed, multiple instances of the program should be used.