[python-win32] win32api: How to send WM_SIZING to a Window

[Andreas Holtz]

The program is CATIA from Dassault.
They have a parameter to control the refresh of
the display (CATIAApplication.RefreshDisplay = False) but this
only works within their macro engine. For details see here:
http://ww3.cad.de/foren/ubb/Forum137/HTML/001099.shtml#000002

schrieb Tim Roberts am 30.09.2010 20:14:
>   Andreas Holtz wrote:
>> I have a program which I can control via COM and Python's win32com.
>> This program will visualize a big tree, which gets created by my COM-commands.
>> The problem is, that after each modification of the tree (like insert), the program
>> refreshes its display area.
>>
>> Accidentally I discovered when you click on the window of the program
>> to change its size, as long as I don't lift the mouse button, the refresh of the display
>> area is suspended and the performance of the tree creation increases by factor 10.
>>
>> So my idea is now to simulate this event.
>
> Most similar COM controls have APIs to suspend drawing while you make
> large scale changes.  Sometimes it's called freeze and thaw, sometimes
> suspend and resume, sometimes other similar words are used.  Have you
> looked carefully through the COM interface to see if there is an
> interface like that?
>
> Is this some well-known program?  Perhaps one of us can take a look at
> the interface.
>