Hi,
How can I get a screenshot from the specified window?
I have a multi-dialog app created by MFC.And I use CompositeViewer to show a
model in two dialog,the compositeviewer contains two viewers,which correspond
to the two dialogs separately.My code is:
Code:
viewer1->getCamera()->setPostDrawCallback(new
CaptuerDrawCallBack(image_c.get()));
viewer2->getCamera()->setPostDrawCallback(new
CaptuerDrawCallBack(image_c.get()));
c_viewer->frame();
struct CaptuerDrawCallBack:public osg::Camera::DrawCallback
{
CaptuerDrawCallBack(osg::ref_ptr<osg::Image>image)
{
_image=image;
}
~CaptuerDrawCallBack(){}
virtual void operator()(const osg::Camera& camera)const
{
_image->allocateImage(720,576,1,GL_RGBA,GL_UNSIGNED_BYTE);
_image->readPixels(0,0,720,576,GL_RGBA,GL_UNSIGNED_BYTE);
pData=_image->data();
}
osg::ref_ptr<osg::Image>_image;
Where c_frame is a CompositeViewer.It only can get a screenshot from the
viewer2.How can I get a screenshot from the two windows separately?
Thank you!
Cheers,
Duan
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=35181#35181
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