Hi Simon,
You don't need to create a graphics window let alone realize it to get
the window dimensions. The ScreenIdentifier is simply a structure
that holds the display name, display number and screen number, and for
most computers a default constructed ScreenIdentifier that sets a 0,0
for display and screen number will be just fine. The osgcamera.cpp
example has an example of how one would typically use
getScreenResolution.
osg::GraphicsContext::WindowingSystemInterface* wsi =
osg::GraphicsContext::getWindowingSystemInterface();
if (!wsi)
{
osg::notify(osg::NOTICE)<<"Error, no WindowSystemInterface
available, cannot create windows."<<std::endl;
return;
}
unsigned int width, height;
wsi->getScreenResolution(osg::GraphicsContext::ScreenIdentifier(0),
width, height);
Robert.
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