flickering problem

[vani]

Hi
I am fresher in VC++. I am working on a VC++ Project.
I have a serious flickering problem when i am resizing
the window.
Please help me.

vani

[Doug Forster]

Re: flickering problem

Hi,

One approach is to intercept WM_ENTERSIZEMOV E and WM_EXITSIZEMOVE messages
to detect the start and end of the resizing operation and set a flag during
the move to stop painting until the drag finishes.

Cheers
Doug Forster

"vani" <vanisri@yahoo. com> wrote in message
news:0ad301c389 19$29baedd0$a10 1280a@phx.gbl.. .[color=blue]
> Hi
> I am fresher in VC++. I am working on a VC++ Project.
> I have a serious flickering problem when i am resizing
> the window.
> Please help me.
>
> vani[/color]

[vani]

Re: flickering problem


Thanks for the reply.
I am working on the approach u told me.Once i get some
output i will let u know.
[color=blue]
>-----Original Message-----
>Hi,
>
>One approach is to intercept WM_ENTERSIZEMOV E and[/color]
WM_EXITSIZEMOVE messages[color=blue]
>to detect the start and end of the resizing operation and[/color]
set a flag during[color=blue]
>the move to stop painting until the drag finishes.
>
>Cheers
>Doug Forster
>
>"vani" <vanisri@yahoo. com> wrote in message
>news:0ad301c38 919$29baedd0$a1 01280a@phx.gbl. ..[color=green]
>> Hi
>> I am fresher in VC++. I am working on a VC++ Project.
>> I have a serious flickering problem when i am resizing
>> the window.
>> Please help me.
>>
>> vani[/color]
>
>
>.
>[/color]

[Al]

Re: flickering problem

Best way is to remove CS_VREDRAW and CS_HREDRAW in the class style. Also,
calculating the new area to be drawn and only drawing there (if you don't
need to redraw the old area) will help a ton.

--
remove underscores to email

"Doug Forster" <doug_ZAPTHIS_A T_TONIQ_ZAPTHIS _co.nz> wrote in message
news:%23OU20XTi DHA.2984@TK2MSF TNGP11.phx.gbl. ..[color=blue]
> Hi,
>
> One approach is to intercept WM_ENTERSIZEMOV E and WM_EXITSIZEMOVE messages
> to detect the start and end of the resizing operation and set a flag[/color]
during[color=blue]
> the move to stop painting until the drag finishes.[/color]

[Ferdinand Oeinck]

Re: flickering problem

Yes, I argee with that, remove CS_VREDRAW and CS_HREDRAW. The list of
rectangles to re-draw can be gotten from ::GetUpdateRgn and then
::GetRegionData . Clip your datastructure according to this list.

Ferdinand.



"Al" <a_wad_dell@co_ dest_rike.com> wrote in message
news:ulbzQ4YkDH A.1960@TK2MSFTN GP12.phx.gbl...[color=blue]
> Best way is to remove CS_VREDRAW and CS_HREDRAW in the class style. Also,
> calculating the new area to be drawn and only drawing there (if you don't
> need to redraw the old area) will help a ton.
>
> --
> remove underscores to email
>
> "Doug Forster" <doug_ZAPTHIS_A T_TONIQ_ZAPTHIS _co.nz> wrote in message
> news:%23OU20XTi DHA.2984@TK2MSF TNGP11.phx.gbl. ..[color=green]
> > Hi,
> >
> > One approach is to intercept WM_ENTERSIZEMOV E and WM_EXITSIZEMOVE[/color][/color]
messages[color=blue][color=green]
> > to detect the start and end of the resizing operation and set a flag[/color]
> during[color=green]
> > the move to stop painting until the drag finishes.[/color]
>
>[/color]