public int DragOver(uint grfKeyState, POINTL pt, ref uint pdwEffect)
{
if (m_DragOverFunc == null)
{
var fp = GetFunctionPointer(4);
m_DragOverFunc = (DragOverFunc)Marshal.GetDelegateForFunctionPointer(fp, typeof(DragOverFunc));
}
return(m_DragOverFunc(m_ptr, grfKeyState, pt, ref pdwEffect));
}
public int Drop(IntPtr pDataObj, uint grfKeyState, POINTL pt, ref uint pdwEffect)
{
if (m_DropFunc == null)
{
var fp = GetFunctionPointer(6);
m_DropFunc = (DropFunc)Marshal.GetDelegateForFunctionPointer(fp, typeof(DropFunc));
}
return(m_DropFunc(m_ptr, pDataObj, grfKeyState, pt, ref pdwEffect));
}
public int TransformCoords(ref POINTL pPtlHimetric, ref POINTF pPtfContainer, uint dwFlags)
{
if (m_TransformCoordsFunc == null)
{
var fp = GetFunctionPointer(6);
m_TransformCoordsFunc = (TransformCoordsFunc)Marshal.GetDelegateForFunctionPointer(fp, typeof(TransformCoordsFunc));
}
return(m_TransformCoordsFunc(m_ptr, ref pPtlHimetric, ref pPtfContainer, dwFlags));
}
