105 lines
3.6 KiB
Python
105 lines
3.6 KiB
Python
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# -*- coding: utf-8 -*-
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#*****************************************************************************
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# Copyright (C) 2003-2006 Jack Trainor.
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# Copyright (C) 2006 Jorgen Stenarson. <jorgen.stenarson@bostream.nu>
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#
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# Distributed under the terms of the BSD License. The full license is in
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# the file COPYING, distributed as part of this software.
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#*****************************************************************************
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###################################
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#
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# Based on recipe posted to ctypes-users
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# see archive
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# http://aspn.activestate.com/ASPN/Mail/Message/ctypes-users/1771866
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#
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#
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###################################################################################
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#
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# The Python win32clipboard lib functions work well enough ... except that they
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# can only cut and paste items from within one application, not across
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# applications or processes.
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#
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# I've written a number of Python text filters I like to run on the contents of
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# the clipboard so I need to call the Windows clipboard API with global memory
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# for my filters to work properly.
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#
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# Here's some sample code solving this problem using ctypes.
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#
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# This is my first work with ctypes. It's powerful stuff, but passing arguments
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# in and out of functions is tricky. More sample code would have been helpful,
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# hence this contribution.
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#
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###################################################################################
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from ctypes import *
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from pyreadline.keysyms.winconstants import CF_TEXT, GHND
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OpenClipboard = windll.user32.OpenClipboard
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EmptyClipboard = windll.user32.EmptyClipboard
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GetClipboardData = windll.user32.GetClipboardData
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GetClipboardFormatName = windll.user32.GetClipboardFormatNameA
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SetClipboardData = windll.user32.SetClipboardData
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EnumClipboardFormats = windll.user32.EnumClipboardFormats
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CloseClipboard = windll.user32.CloseClipboard
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OpenClipboard.argtypes=[c_int]
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EnumClipboardFormats.argtypes=[c_int]
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CloseClipboard.argtypes=[]
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GetClipboardFormatName.argtypes=[c_uint,c_char_p,c_int]
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GetClipboardData.argtypes=[c_int]
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SetClipboardData.argtypes=[c_int,c_int]
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GlobalLock = windll.kernel32.GlobalLock
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GlobalAlloc = windll.kernel32.GlobalAlloc
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GlobalUnlock = windll.kernel32.GlobalUnlock
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GlobalLock.argtypes=[c_int]
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GlobalUnlock.argtypes=[c_int]
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memcpy = cdll.msvcrt.memcpy
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def enum():
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OpenClipboard(0)
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q=EnumClipboardFormats(0)
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while q:
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print q,
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q=EnumClipboardFormats(q)
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CloseClipboard()
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def getformatname(format):
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buffer = c_buffer(" "*100)
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bufferSize = sizeof(buffer)
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OpenClipboard(0)
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GetClipboardFormatName(format,buffer,bufferSize)
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CloseClipboard()
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return buffer.value
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def GetClipboardText():
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text = ""
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if OpenClipboard(0):
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hClipMem = GetClipboardData(CF_TEXT)
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if hClipMem:
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GlobalLock.restype = c_char_p
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text = GlobalLock(hClipMem)
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GlobalUnlock(hClipMem)
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CloseClipboard()
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return text
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def SetClipboardText(text):
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buffer = c_buffer(text)
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bufferSize = sizeof(buffer)
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hGlobalMem = GlobalAlloc(c_int(GHND), c_int(bufferSize))
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GlobalLock.restype = c_void_p
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lpGlobalMem = GlobalLock(c_int(hGlobalMem))
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memcpy(lpGlobalMem, addressof(buffer), c_int(bufferSize))
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GlobalUnlock(c_int(hGlobalMem))
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if OpenClipboard(0):
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EmptyClipboard()
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SetClipboardData(c_int(CF_TEXT), c_int(hGlobalMem))
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CloseClipboard()
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if __name__ == '__main__':
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txt=GetClipboardText() # display last text clipped
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print txt
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