我有这个问题,我需要用下文所示的<代码>XSync方法。 这是<代码>的一部分。 OgreWidget: initialize methods, where OgreWidget/code> subclasses QWidget initialize is calls as part of Construction of OgreWidget,在m_OgreRoot之后,分配并设定了成因系统。
setAttribute(Qt::WA_PaintOnScreen, true);
setAttribute(Qt::WA_NoSystemBackground, true);
setFocusPolicy(Qt::StrongFocus);
Ogre::String winHandle;
QX11Info info = x11Info();
winHandle = Ogre::StringConverter::toString((unsigned long)(info.display()));
winHandle += ":";
winHandle += Ogre::StringConverter::toString((unsigned int)(info.screen()));
winHandle += ":";
winHandle += Ogre::StringConverter::toString((unsigned long)(winId()));
Ogre::NameValuePairList params;
params["parentWindowHandle"] = winHandle;
params["FSAA"] = Ogre::String("8");
int w = width();
int h = height();
// Need to call XSync or the window handles will be invalid.
XSync(info.display(), False);
m_OgreWindow =
m_OgreRoot->createRenderWindow("OgreWidget_RenderWindow",
qMax(w, 640), qMax(h, 480), false, ¶ms);
此处为经修改的编号5.1.0的同一代码:QX11Info被移至Qt 5.0.x,然后添加到Qt 5.1.0的“Exras”部分。 新的<代码>QX11Info类别只有固定方法。
#include <QtX11Extras/QX11Info>
...
setAttribute(Qt::WA_PaintOnScreen, true);
setAttribute(Qt::WA_NoSystemBackground, true);
setFocusPolicy(Qt::StrongFocus);
Ogre::String winHandle;
winHandle = Ogre::StringConverter::toString((unsigned long)(QX11Info::display()));
winHandle += ":";
winHandle += Ogre::StringConverter::toString((unsigned int)(QX11Info::appScreen()));
winHandle += ":";
winHandle += Ogre::StringConverter::toString((unsigned long)(winId()));
Ogre::NameValuePairList params;
params["parentWindowHandle"] = winHandle;
params["FSAA"] = Ogre::String("8");
int w = width();
int h = height();
// Need to call XSync or the window handles will be invalid.
XSync(QX11Info::display(), False);
m_OgreWindow =
m_OgreRoot->createRenderWindow("OgreWidget_RenderWindow",
qMax(w, 640), qMax(h, 480), false, ¶ms);
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