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Hi Thomas,<br>
<br>
Could you specify how exactly do you ask for "Vertical
synchronization", which does not work?<br>
Setting D3DPRESENT_PARAMETERS::PresentationInterval to
D3DPRESENT_INTERVAL_ONE in IDirect3D9::CreateDevice should produce
no error as far as I can tell.<br>
<br>
Mikhail<br>
<br>
On 27.02.2012 8:13, 李彪 wrote:
<blockquote cite="mid:tencent_3BA46ED36BC44ED07BA38CFF@qq.com"
type="cite">
<div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; ">hi, all</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; "><br>
</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; ">now I have a windowsXP App that use DirectX technology
to display the high-resolution real-time video.</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; ">however, it works well in physic machine but not in
vbox winXP vm.</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; "><br>
</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; ">finally, we find the root cause is that when we ask
for "<span style="font-family: arial, 宋体, sans-serif;
line-height: 24px; ">Vertical synchronization</span>" on
simulated video card in VM, it reports error and no display at
all. if we don't ask "<span style="font-family: arial, 宋体,
sans-serif; line-height: 24px; ">Vertical synchronization</span>"
, it works well.</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; "><br>
</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; ">so my question is :</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; "><br>
</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; ">- does simulated video card in Vbox support "<span
style="font-family: arial, 宋体, sans-serif; line-height:
24px; ">Vertical synchronization</span>" function ?</div>
</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; ">- is there any patch for this problem ?</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; "><br>
</div>
<div style="font-family: 'lucida Grande', Verdana; line-height:
23px; ">thomas</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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</blockquote>
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