python - How to detect (view) an area of the screen surrounding a mouse pointer -

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i'm on linux, , want try recreate nattyware's pixie tool web development. gpick ok, pixie around better.

i want able detect , display area around mouse pointer. i've been trying find way show area around mouse pointer, zoomed in python.

i have no idea start that. don't want save of images, show zoomed in area of mouse in window.

edit: got can potentially works. don't run this, crashes!

import sys, evdev xlib import display, x pyqt4 import qtgui pyqt4.qtgui import qpixmap, qapplication, qcolor  class printimage(): def __init__(self):     self.window = qtgui.qmainwindow()     self.window.setgeometry(0,0,400,200)      self.winid = qapplication.desktop().winid()     self.width = 150     self.height = 150      self.label = qtgui.qlabel('hi')     self.label.setgeometry(10, 10, 400, 100)     self.label.show()  def drawview(self, x, y):     self.label.settext('abc')     pix = self.getscreenarea(x, y)     self.pic.setpixmap(pix)  def render(self):     self.window.show()  def getscreenarea(self, areax, areay):     image = qpixmap.grabwindow(         self.winid,         x = areax,         y = areay,         width = self.width,         height = self.height     )      return image  if __name__ == '__main__':     app = qapplication(sys.argv)     view = printimage()      view.render()      display = display.display(':0')     root = display.screen().root      root.grab_pointer(        true,         x.pointermotionmask | x.buttonreleasemask,         x.grabmodeasync,         x.grabmodeasync,         0, 0,         x.currenttime    )      while true:         ev = display.next_event()         view.drawview(ev.event_x, ev.event_y)      app.exec_()

any idea why destroys itself? crashes on grabwindow() function.. there else can use?

this works me on linux, cross-platform:

import wx ff=wx.app() screen = wx.screendc() size = screen.getsize() bmp = wx.emptybitmap(size[0], size[1]) mem = wx.memorydc(bmp) mem.blit(0, 0, size[0], size[1], screen, 0, 0) del mem #bmp.savefile('screenshot.png', wx.bitmap_type_png) im = bmp.converttoimage()

from help: 

converttoimage  creates platform-independent image platform-dependent bitmap. preserves mask information bitmaps , images can converted , forth without loss in respect.

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