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[RaiMan <rmhdevelop@xxxxxx>]

Update for 1st sentence in comment 1

SCREEN is a CONSTANT REFERENCE to a Screen object Screen(0) and not its
contents are constant (it is a convenience).

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https://bugs.launchpad.net/bugs/729260

Title:
  setROI updates SCREEN --- it is not a constant content

Status in Sikuli:
  Invalid

Bug description:
  Calling setROI(smaller_region) changes the global variable SCREEN,
  which I assume is meant to be constant.  The __str__ function of
  SCREEN also isn't updated to reflect the change.

  print SCREEN
  print SCREEN.getW()
  setROI(Region(0,0,100,100)
  print SCREEN
  print SCREEN.getW()
  setROI(SCREEN)

  This prints out the following, and at the end the ROI is not updated to the entire screen:
  Screen(0)[0,0 1440x900] E:Y, T:3.0 
  1440 
  Screen(0)[0,0 1440x900] E:Y, T:3.0 
  100

  We can save the original parameters of SCREEN to a variable to get
  around this, but it took a while to figure out what was happening.

  1. X 1.0 rc2
  2. 64 bit Mac OSX 10.6