EM_GETLINE,Win32gui, address of buffer

[Mark_Pryor]

Hi

Using 2.1.1 build 212 from AS

calling Win32gui.SendMessage( hwnd, cMes, wParam, lParam)

When I use the message, EM_GETLINE, the lParam calls for
an address of a string buffer. How do I prepare this buffer in Python?

tia,
Mark Pryor
-- 
ICQ 64329574
Pgp KeyID: 0x1A966EC5

Here is the script that I'm using. Its a hack to get the text of
the caret line in UltraEdit-32.

# begin WinEnum.py

import os, sys
import win32api as wi
import win32gui as ui
import win32con as wc
import re

myhwnd = 0
myti = ''
mycl = ''

def Callback(hwnd, skip):
    global myhwnd
    global myti
    ti = ui.GetWindowText(hwnd)
    if ti.find(skip) >=0:        
        myhwnd = hwnd
        myti = ti
        print hwnd, "uedit32 found",skip
        return 0
    else:
        #print hwnd, ti
        return 1

try:
     ui.EnumWindows(Callback, "UltraEdit-32")
except:
    print "error", myhwnd

#[^\[\]]
pat = re.compile('\[([^\[\]]*)\]')   
mtch = pat.search(myti)

#os.path.basename(mtch.group(1))
mybase = mtch.group(1)  
print "mybase=",mybase
mybase.strip()

# get the starting child window, that has the right edit control
#//////////////////////////////
myhwnd =  ui.FindWindowEx(myhwnd,0, "MDICLIENT",'')
print "MDI", myhwnd

myhwnd = ui.FindWindowEx(myhwnd,0,0,mybase)
print "tab found",myhwnd

try:
    myhwnd = ui.FindWindowEx(myhwnd,0,0,'')
    print "frame found",myhwnd
except:
    print "error", myhwnd

try:
    myhwnd = ui.FindWindowEx(myhwnd,0,'EditControl','')
    print "Edit control found",myhwnd
except:
    print "error", myhwnd

# now we have the handle to the EditControl, get the line number
#///////////////////////////////////////////////
print myhwnd
res = ui.SendMessage(myhwnd,wc.EM_LINEINDEX,-1,0)
print "char number=",res
llen = ui.SendMessage(myhwnd,wc.EM_LINELENGTH,res,0)
res = ui.SendMessage(myhwnd,wc.EM_LINEFROMCHAR,res,0)
print wc.EM_LINEINDEX
print "line number=",res

# get the text in the edit line
#//////////////  things fall apart here and UE crashes
mytext = ''
obj = ui.PyMakeBuffer( llen, 0)
#res = ui.SendMessage(myhwnd,wc.EM_GETLINE,res, obj )
print res, ui.PyGetString(obj)






-- 
ICQ 64329574
Pgp KeyID: 0x1A966EC5