// If un-scrolled is non-zero or d.o. changes with scrolling.
// Set using SetInternalDeviceOrigin().
long m_internalDeviceOriginX,m_internalDeviceOriginY;
// To be set by external classes such as wxScrolledWindow
// using SetDeviceOrigin()
long m_externalDeviceOriginX,m_externalDeviceOriginY;
// If un-scrolled is non-zero or d.o. changes with scrolling.
// Set using SetInternalDeviceOrigin().
long m_internalDeviceOriginX,m_internalDeviceOriginY;
// To be set by external classes such as wxScrolledWindow
// using SetDeviceOrigin()
long m_externalDeviceOriginX,m_externalDeviceOriginY;