overlapped

Arguments: basic-pane

Use of this property is deprecated in favor of child-p. (Similarly, use of the :overlapped initarg to make-window is deprecated in favor of the :child-p initarg.)

child-p has the opposite meaning as overlapped, and is t by default rather than nil (except for form windows created interactively, where child-p is nil by default). A child window is one whose parent is a window rather than the screen. A child window is clipped at the interior border of its parent, and moves along with the parent when the parent is moved. The owner of a child window is its parent, and a non-child window (usually called a top-level window) may still have an owner which is a window rather than the screen. The child-p property may not be modified; it may only be passed as the value of the :child-p initarg to make-window and referenced later by calling child-p.

This function returns the value of the overlapped property of the argument. If true, the specified parent will actually be an owner, and the parent will be the screen.

See About child, parent, and owner windows in cgide.htm.

The overlapped property may not be changed on an existing window, and must instead be specified with the inspector when designing a window (using a form) or with the :overlapped initarg of make-window. (It can be changed using the inspector when designing a form but not for a running window or control, either in the IDE or in an application.)

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This page was not revised from the 8.2 page.
Created 2012.5.30.