Python grasping screen implementation method under Linux

The example of this article describes the Linux Python grab screen implementation method. Share to everyone for your reference. The specific implementation code is as follows:

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#!/usr/bin/python ' by Zevolo, 2012.12.20 ' ' Import gtk.gdk import GTK Import glib Class Myrect (): Def __init__ (self, X = 0, y = 0, W = 0, h = 0): self.x = x self.y = y SELF.W = w self.h = h def __init__ (self, x, y): self.x = min (int (x.x), I NT (y.x)) self.y = min (int (x.y), int (y.y)) SELF.W = ABS (int (y.x-x.x)) self.h = ABS (int (Y.Y-X.Y)) class Mypair (): Def __ Init__ (self, x = 0, y = 0): self.x = x self.y = y class MyPoint (Mypair): Def __init__ (self, x = 0, y = 0): mypair.__init__ (self, x, Y) class Mysize (Mypair): Def __init__ (self, w = 0, h = 0): mypair.__init__ (self, x, Y) class Mycapture (): (Event _enter, Event_leave) = (0, 1) def __init__ (self): Pass Def Capture (self): Pass def handleevent (self, event): If event = E Vent_enter:entersnap () elif event = = Event_leave:leavesnap () def entersnap (self): Pass def Leavesnap (self): Pass def SNA P (self, window = none, rect = none, name = None): Pass class MYCAPTUREGTK (mycapture): def __init__ (self): Mycapture.__init __ (self) Self.window = gtk. Window () self.window.set_default_size (1,1) self.window.connect ("Button-press-event", SELF.BUTTON_PRESS_CB) Self.first = None Self.second = None self.window.show () #self. Window.set_events (Gtk.gdk.BUTTON_PRESS_MASK) def GetWindow (self): return Self.window def button_press_cb (self, Widget, event): #print ' type is%d '% event.type if event.ty PE = = Gtk.gdk.BUTTON_PRESS:if Event.button = = 1: #left button print (%d,%d), (%d,%d), button is%d "%" (Event.x_root, E Vent.y_root, Event.x, Event.y, Event.button) if not Self.first:self.first = MyPoint (Event.x_root, Event.y_root) Else:sel F.second = MyPoint (Event.x_root, Event.y_root) Self.snap (None, Myrect (Self.first, self.second)) Self.first = None elif ev Ent.button = 3: #right button Self.uncapture () Else:pass def uncapture (self): if Self.first:print "Cancel" Self.first = None else:print ' Exit Now ' Gtk.gdk.pointer_ungrab () gtk.mainquit () def capture (self, time = 0L): cursor = Gtk.gdk.Cursor (Gtk.gdk.display_get_default (), Gtk.gdk.CROSSHAIR) ret = Gtk.gdk.pointer_grab (Self.window.window, True, Gtk.gdk.BUTTON_PRESS_MASK, None, cursor, time) if ret = = GTK.GDK.G Rab_success:print "left button start, end, right button Cancel/exit" Else:print "failed to capture%d, (viewable%d), (FR Ozen%d), (already%d) "% (ret, Gtk.gdk.GRAB_NOT_VIEWABLE, Gtk.gdk.GRAB_FROZEN, Gtk.gdk.GRAB_ALREADY_GRABBED) def snap ( Self, window = none, rect = none, name = none): w = window if not window: #w = Gtk.gdk.get_default_root_window () d = gtk.g Dk.display_get_default () W = D.get_default_screen (). Get_root_window () R = Rect if not R:sz = W.get_size () R = myrect (0, 0 , Sz[0], sz[1]) print "The size of the" window is (%d,%d,%d,%d)% (r.x, r.y, R.W, r.h) n = name if not n:n = "Screensh Ot.png "buf = Gtk.gdk.Pixbuf (gtk.gdk.colorspace_rgb,false,8, R.W, r.h) buf = buf.get_from_drawable (W,w.get_colormap (), R.x, r.y, 0, 0, R.W, r.h) if (buf!= None): Buf.save (N, "PNG") print screenshot saved to%s. "% n else:print" unable to Get the screenshot. "Def TimeoUT (data): #print "Timeout" data.capture () if __name__ = = ' __main__ ': Cap = MYCAPTUREGTK () w = Cap.getwindow () w.show () Gli B.timeout_add_seconds (1, timeout, cap) #cap. Snap () Gtk.main ()

I hope this article will help you with your Python programming.