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xclick

Wait for a mouse click or an event in a graphic window.

Syntax

[ibutton,xcoord,yxcoord,iwin,cbmenu]=xclick([flag])

Arguments

ibutton

Real scalar (integer value): mouse button number, event code... (See description below).

xcoord

Real scalar: x-coordinate of the mouse pointer when the click or event occurred, in current graphic scale (see gca()).

ycoord

Real scalar: y-coordinate of the mouse pointer when the click or event occurred, in current graphic scale (see gca()).

iwin

Real scalar (integer value): number of the window where the action occurred.

cbmenu

String: callback associated to a menu if xclick returns due to a click on a menu. In this case, ibutton, xcoord, ycoord, and iwin take arbitrary values.

flag

Real scalar (integer value): If present, the click event queue is not cleared when entering xclick.

Description

xclick waits for a mouse click, a keyboard event, a menu activation or windows closure in the graphics window. xclick prevents menu callback to be executed. Callback will be returned in cbmenu return value.

If it is called with 3 left hand side arguments, it waits for a mouse click in the current graphics window.

If it is called with 4 or 5 left hand side arguments, it waits for a mouse click in any graphics window.

Warning, the returned coordinates xcoord, ycoord are relative to the current axes (see gca()).

The values of ibutton are described below.

ibutton==0

Left mouse button has been pressed.

ibutton==1

Middle mouse button has been pressed.

ibutton==2

Right mouse button has been pressed.

ibutton==3

Left mouse button has been clicked.

ibutton==4

Middle mouse button has been clicked.

ibutton==5

Right mouse button has been clicked.

ibutton==10

Left mouse button has been double-clicked.

ibutton==11

Middle mouse button has been double-clicked.

ibutton==12

Right mouse button has been double-clicked.

ibutton >=32

key with ASCII code ibutton has been pressed.

ibutton <= -32

key with ASCII code -ibutton has been released.

ibutton >=1000+32

key with ASCII code ibutton-1000 has been pressed while CTRL key pressed.

ibutton==-1000

graphic window has been closed.

ibutton==-2

A dynamic menu has been selected and its callback is returned in cbmenu.

See also

  • gca — Return handle of current axes.
  • locate — mouse selection of a set of points in a 2D axes
  • xgetmouse — get the mouse events and current position
  • seteventhandler — set an event handler for the current graphic window

History

ВерсияОписание
5.0 Closing a figure now returns the event code -1000 instead of -100.
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Last updated:
Mon Jun 17 17:55:07 CEST 2024