本文整理汇总了C++中CDisplay::TakeScreenShotToArray方法的典型用法代码示例。如果您正苦于以下问题：C++ CDisplay::TakeScreenShotToArray方法的具体用法？C++ CDisplay::TakeScreenShotToArray怎么用？C++ CDisplay::TakeScreenShotToArray使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CDisplay的用法示例。
在下文中一共展示了CDisplay::TakeScreenShotToArray方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: sltRecreatePreview
void UIVMPreviewWindow::sltRecreatePreview()
{
/* Only do this if we are visible: */
if (!isVisible())
return;
/* Remove preview if any: */
if (m_pPreviewImg)
{
delete m_pPreviewImg;
m_pPreviewImg = 0;
}
/* We are not creating preview for inaccessible VMs: */
if (m_machineState == KMachineState_Null)
return;
if (!m_machine.isNull() && m_vRect.width() > 0 && m_vRect.height() > 0)
{
QImage image(size(), QImage::Format_ARGB32);
image.fill(Qt::transparent);
QPainter painter(&image);
bool fDone = false;
/* Preview enabled? */
if (m_pUpdateTimer->interval() > 0)
{
/* Use the image which may be included in the save state. */
if ( m_machineState == KMachineState_Saved
|| m_machineState == KMachineState_Restoring)
{
ULONG width = 0, height = 0;
QVector<BYTE> screenData = m_machine.ReadSavedScreenshotPNGToArray(0, width, height);
if (screenData.size() != 0)
{
QImage shot = QImage::fromData(screenData.data(), screenData.size(), "PNG").scaled(m_vRect.size(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
dimImage(shot);
painter.drawImage(m_vRect.x(), m_vRect.y(), shot);
fDone = true;
}
}
/* Use the current VM output. */
else if ( m_machineState == KMachineState_Running
// || m_machineState == KMachineState_Saving /* Not sure if this is valid */
|| m_machineState == KMachineState_Paused)
{
if (m_session.GetState() == KSessionState_Locked)
{
CVirtualBox vbox = vboxGlobal().virtualBox();
if (vbox.isOk())
{
const CConsole& console = m_session.GetConsole();
if (!console.isNull())
{
CDisplay display = console.GetDisplay();
/* Todo: correct aspect radio */
// ULONG w, h, bpp;
// display.GetScreenResolution(0, w, h, bpp);
// QImage shot = QImage(w, h, QImage::Format_RGB32);
// shot.fill(Qt::black);
// display.TakeScreenShot(0, shot.bits(), shot.width(), shot.height());
QVector<BYTE> screenData = display.TakeScreenShotToArray(0, m_vRect.width(), m_vRect.height());
if ( display.isOk()
&& screenData.size() != 0)
{
/* Unfortunately we have to reorder the pixel
* data, cause the VBox API returns RGBA data,
* which is not a format QImage understand.
* Todo: check for 32bit alignment, for both
* the data and the scanlines. Maybe we need to
* copy the data in any case. */
uint32_t *d = (uint32_t*)screenData.data();
for (int i = 0; i < screenData.size() / 4; ++i)
{
uint32_t e = d[i];
d[i] = RT_MAKE_U32_FROM_U8(RT_BYTE3(e), RT_BYTE2(e), RT_BYTE1(e), RT_BYTE4(e));
}
QImage shot = QImage((uchar*)d, m_vRect.width(), m_vRect.height(), QImage::Format_RGB32);
if (m_machineState == KMachineState_Paused)
dimImage(shot);
painter.drawImage(m_vRect.x(), m_vRect.y(), shot);
fDone = true;
}
}
}
}
}
}
if (fDone)
m_pPreviewImg = new QImage(image);
}
update();
}