Clipping rectangles

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Clipping rectangles are used to clip rectangular parts of main drawing (Model space). The part can be saved as a bitmap or a file.
There are functions:

Function	Meaning
lcCRectsClear	Removes all clipping rectangles from a drawing
lcCRectsDelete	Removes one clipping rectangles from a drawing
lcCRectsAdd	Adds new clipping rectangle into a drawing
lcCRectsDivide	Adds several clipping rectangles into a drawing by dividing the drawing's area
lcCRectsGetFirst lcCRectsGetNext	Used to sequentially retrieve clipping rectangles
lcCRectsGetWithID	Retrieves a clipping rectangle by its identifier
lcCRectsActive	Makes active specified rectangle
lcCRectsGetActive	Retrieves active rectangle
lcCRectsSave	Saves contents into a file
lcCRectsBitmap	Saves contents as a raster image

Clipping rectangle has the following properties:

Property	Type	Access	Meaning
LC_PROP_CRECT_ID	int	RW	Identifier
LC_PROP_CRECT_NAME	float	RW	Name
LC_PROP_CRECT_X	float	RW	Center X
LC_PROP_CRECT_Y	float	RW	Center Y
LC_PROP_CRECT_W	float	RW	Width
LC_PROP_CRECT_H	float	RW	Height
LC_PROP_CRECT_ANGLE	float	RW	Rotation angle
LC_PROP_CRECT_LEN	float	R	Perimeter
LC_PROP_CRECT_AREA	float	R	Area

Window properties to control Clipping rectangles:

Property	Type	Access	Meaning
LC_PROP_WND_CRECTS_EDIT	bool	RW	"Edit Clipping Rectangles" mode
LC_PROP_WND_CRECTS_VISIBLE	bool	RW	Display clipping rectangles when LC_PROP_WND_CRECTS_EDIT is false

LC_CMD_CLIPRECTS - Command to call dialog "Clipping Rectangles"

In LiteCAD.exe - menu "Tools / Clipping Rectangles..."