sizepic

#sizepic

##Syntax sizepic ( x1, y1, x2, y2 : int) : int

##Description The sizepic function is used to determine the size buffer needed to record a picture from the screen (see description of takepic ). This gives the minimum number of elements of the int array used by takepic. The buffer is used by drawpic to make copies of the picture on the screen.

##Example This program outputs the size of array needed to hold a picture with left bottom corner at x=10, y=20 and right top corner at x=50, y=60.

    setscreen ("graphics")
    �
    put "The size of the array needs to be",
        sizepic ( 10, 20, 50, 60 )

##Details See takepic for an example of the use of sizepic and for further information about buffers for drawing pictures.

The screen should be in a "graphics" mode. See the setscreen procedure for details. If the screen is not in a "graphics" mode, it will automatically be set to "graphics" mode.

##See also drawpic.html. See also setscreen.html, maxx.html, maxy.html, drawdot.html, drawline.html, drawbox.html, and drawoval.html.

See also predefined unit picmodule.html.