ctypes

I need to call an exported function from win32ui.pyd

I can get a handle to the function, but it returns a PyObject *

How can I get that PyObject from ctypes?

I thought 

win32ui = cdll.LoadLibrary("win32ui.pyd")
makedlg = getattr(win32ui,'?MakeDlgListFromResource@...')

makedlg.restype = py_object_p

but I can't see any way to do this.

Still wrestling createdialogindirect .. 



-- 
Brad Clements,                bkc@...   (315)268-1000
http://www.murkworks.com                          (315)268-9812 Fax
http://www.wecanstopspam.org/                   AOL-IM: BKClements

Bob Ippolito <bob@...> writes:

> On Monday, Jul 28, 2003, at 17:38 America/New_York, Brad Clements wrote:
>
>> I expect this structure to be 22 bytes
>>
>> class   DLGITEMTEMPLATEEXHeader(Structure):
>>     packed = 2
>>     _fields_ = [
>>         ("helpID", c_ulong),  	# 4 +    -- 4
>>         ("exStyle", c_ulong),	# 4 +    -- 8
>>         ("style", c_ulong),		# 4 +    -- 12
>>         ("x", c_short),			# 2 +    -- 14
>>         ("y", c_short),			# 2 +    -- 16
>>         ("cx", c_short),			# 2 +    -- 18
>>         ("cy", c_short),			# 2 +    -- 20
>>         ("id", c_ushort)		# 2 =    -- 22
>>     ]
>>
>>
>> byte sizeof() reports 24
>
> You're right, I ran a couple similar tests and it doesn't seem like
> ANY setting for packed makes this structure report a different sizeof.
>
> However, by looking at mr. source code, I see that "packed" is
> actually called "_pack_" .. give that a shot, it works ;)

Thanks. I've fixed the docs in cvs.

Thomas

On 28 Jul 2003 at 18:17, Brad Clements wrote:

Anyone have any ideas for a workaround? I'm trying to create dialogs in venster 
dynamically, so the window style needs WS_POPUP which is 0x8000000


So I get

        print "trying c_ulong 0x%x" % style
        header.style = c_ulong(style)

and 

                     style = DS_MODALFRAME|WS_POPUP|WS_CAPTION|WS_SYSMENU,

produces:

o:\Harris\sbayes\mkwbayes\Python\mkwsbayes\CreateDialog.py:274: FutureWarning: %u/%o/%x/%X of negative int will return a signed string in Python 2.4 and up
trying c_ulong 0x80c80080
Traceback (most recent call last):
  File "C:\PYTHON23\lib\site-packages\Pythonwin\pywin\framework\scriptutils.py", line 310, in RunScript
    exec codeObject in __main__.__dict__
  File "o:\Harris\sbayes\mkwbayes\Python\mkwsbayes\CreateDialog.py", line 471, in ?
  File "o:\Harris\sbayes\mkwbayes\Python\mkwsbayes\CreateDialog.py", line 439, in testExample
  File "o:\Harris\sbayes\mkwbayes\Python\mkwsbayes\CreateDialog.py", line 275, in __init__
ValueError: Value out of range

This is 2.3c1



-- 
Brad Clements,                bkc@...   (315)268-1000
http://www.murkworks.com                          (315)268-9812 Fax
http://www.wecanstopspam.org/                   AOL-IM: BKClements

It likes c_ulong(0xffffffffL) though.

----- Original Message ----- 
From: "Brad Clements" <bkc@...>
To: <ctypes-users@...>
Sent: Monday, July 28, 2003 3:17 PM
Subject: [ctypes-users] c_ulong doesnt accept 0xffffeeee


> complains it's out of range, I'd expect c_ulong to take 0xffffffff
>
>
>
> -- 
> Brad Clements,                bkc@...   (315)268-1000
> http://www.murkworks.com                          (315)268-9812 Fax
> http://www.wecanstopspam.org/                   AOL-IM: BKClements
>
>
>
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