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# canvas clipGroup

## Name

canvas clipGroup -- A canvas item which implements clipping. (in gnoclCanvas)

## Synopsis

`canvasId` create clipGroup [`-option` `value`...]

## Options

-onButtonPress

  type: string (default: "")

  Tcl command which is executed if a mouse button is press inside the item. Before evaluation the following percent strings are substituated: TABLE %% | % %w | canvas name %i | item id %t | type of event: one of buttonPress, button2Press or button3Press %x | x coordinate %y | y coordinate %b | button number %s | state of the buttons and modifiers (bitmask) TABLE

-onButtonRelease

  type: string (default: "")

  Tcl command which is executed if a mouse button is released if it has been pressed inside the item. Before evaluation the following percent strings are substituated: TABLE %% | % %w | canvas name %i | item id %t | type of event: always buttonRelease %x | x coordinate %y | y coordinate %b | button number %s | state of the buttons and modifiers (bitmask) TABLE

-onEnter

  type: string (default: "")

  Tcl command which is executed if a mouse enters the item. Before evaluation the following percent strings are substituated: TABLE %% | % %w | canvas name %i | item id %x | x coordinate %y | y coordinate %s | state of the buttons and modifiers (bitmask) TABLE

-onLeave

  type: string (default: "")

  Tcl command which is executed if a mouse enters the item. Before evaluation the following percent strings are substituated: TABLE %% | % %w | canvas name %i | item id %x | x coordinate %y | y coordinate %s | state of the buttons and modifiers (bitmask) TABLE

-onMotion

  type: string (default: "")

  Tcl command which is executed if the mouse is moved inside the item. Before evaluation the following percent strings are substituated: TABLE %% | % %w | canvas name %i | item id %x | x coordinate %y | y coordinate %s | state of the buttons and modifiers (bitmask) TABLE

-path

  type: list-of-graphic-commands-and-floats

  The path describing the bounds of the clipping region. Its syntax is the same as for canvas bPath.

-tags

  type: list (default: "")

  List of tags to be associated with this item. A tag must start with a alphabetic character which is followed by zero or more alphabetic or numeric characters.

## Description

A clip group implements clipping for its children. A child is added to the clipg roup via its -parent option.

## Commands

`canvasId` itemCommand `tagOrId` appendPath `list-of-graphic-commands-and-floats`

  See command "appendCoords" of the canvas bPath.

## See also

canvas bPath, `GnomeCanvasClipGroup`

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