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<div class="moz-cite-prefix">On 05/20/2013 01:50 PM, 一生有你 wrote:<br>
</div>
<blockquote cite="mid:tencent_71DD01F24C8DD9246075C11D@qq.com"
type="cite">
<div>I tried to take a screen shot by takecSreenShot(),,but
everytime when i trys it, display->TakeScreenShot fails,,and
VisualBox.exe crashes....</div>
<div>I am sure that I can get the correct width and height of the
screen "printf("Width: %ul Height: %ul Bits Per Pixel: %ul. ",
width,height,bpp);"......</div>
<div>my vbox and SDK version are the same 4.1.6....</div>
<div>please help me ...thank U!!</div>
<div> </div>
<div>///////here is the code..........bellow</div>
<div>int testTakeScreenShot(ISession *session)<br>
{<br>
IConsole *console = NULL;<br>
IDisplay *display = NULL;<br>
IFramebuffer* fb=NULL;<br>
unsigned long width, height, bpp;<br>
SIZE_T buffersize;<br>
BYTE* databuff;</div>
<div> HRESULT rc;<br>
if (session == NULL)<br>
return 1;<br>
/* Get console object. */<br>
rc=session->get_Console(&console);<br>
rc=console->get_Display(&display);</div>
<div> </div>
<div>
display->GetScreenResolution(0,&width,&height,&bpp);<br>
printf("Width: %ul Height: %ul Bits Per Pixel: %ul. ",
width,height,bpp);</div>
<div> buffersize = width*height*bpp/8;<br>
databuff= (BYTE*)CoTaskMemAlloc(buffersize);</div>
<div> printf("%p\n", databuff);</div>
<div><br>
</div>
<div> // Test databuffer<br>
if (databuff != NULL)<br>
{<br>
rc = display->TakeScreenShot(0,databuff,width,height);</div>
<div> if (SUCCEEDED(rc))<br>
{<br>
printf("Took a screenshot! %d\n", rc);<br>
}<br>
else<br>
{<br>
printf("Error taking screen shot! rc = 0x%x\n", rc);<br>
}<br>
CoTaskMemFree(databuff);<br>
}<br>
return 0;<br>
}</div>
<br>
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</blockquote>
<br>
Hello,<br>
just for interest,<br>
what was the value of bpp (Bits Per Pixel) in your case?<br>
<pre class="moz-signature" cols="72">--
Valery Portnyagin | VirtualBox Developer | (+7 812) 334 64 26
Oracle Development SPB
10th Krasnoarmeyskaya 22A, Saint-Petersburg, 190103, Russia</pre>
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