public:
wxRegionRefData()
{
- m_region = 0;
+ m_hRegion = 0;
}
- wxRegionRefData(const wxRegionRefData& data)
+ wxRegionRefData(const wxRegionRefData& rData)
{
- // TODO
+ RGNRECT vRgnData;
+ PRECTL pRect = NULL;
+
+ if (::GpiQueryRegionRects( rData.m_hPS // Pres space
+ ,rData.m_hRegion // Handle of region to query
+ ,NULL // Return all RECTs
+ ,&vRgnData // Will contain number or RECTs in region
+ ,NULL // NULL to return number of RECTs
+ ))
+ {
+ pRect = new RECTL[vRgnData.crcReturned];
+ vRgnData.crc = vRgnData.crcReturned;
+ vRgnData.ircStart = 1;
+ if (::GpiQueryRegionRects( rData.m_hPS // Pres space of source
+ ,rData.m_hRegion // Handle of source region
+ ,NULL // Return all RECTs
+ ,&vRgnData // Operations set to return rects
+ ,pRect // Will contain the actual RECTS
+ ))
+ {
+ m_hRegion = ::GpiCreateRegion( rData.m_hPS
+ ,vRgnData.crcReturned
+ ,pRect
+ );
+ m_hPS = rData.m_hPS;
+ }
+ delete [] pRect;
+ }
}
~wxRegionRefData()
{
- // TODO
-
+ ::GpiDestroyRegion(m_hPS, m_hRegion);
}
- HRGN m_region;
+ HRGN m_hRegion;
+ HPS m_hPS;
};
-#define M_REGION (((wxRegionRefData*)m_refData)->m_region)
+#define M_REGION (((wxRegionRefData*)m_refData)->m_hRegion)
//-----------------------------------------------------------------------------
// wxRegion
wxRegion::wxRegion()
{
m_refData = new wxRegionRefData;
- // TODO create empty region
-}
+} // end of wxRegion::wxRegion
-wxRegion::wxRegion(WXHRGN hRegion)
+wxRegion::wxRegion(
+ WXHRGN hRegion
+)
{
m_refData = new wxRegionRefData;
M_REGION = (HRGN) hRegion;
-}
-
-wxRegion::wxRegion(long x, long y, long w, long h)
+} // end of wxRegion::wxRegion
+
+wxRegion::wxRegion(
+ wxCoord x
+, wxCoord y
+, wxCoord vWidth
+, wxCoord vHeight
+)
{
- m_refData = new wxRegionRefData;
- // TODO create rect region
-}
-
-wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
+ RECTL vRect;
+ SIZEL vSize = {0, 0};
+ DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
+ HDC hDC = ::DevOpenDC( vHabmain
+ ,OD_MEMORY
+ ,"*"
+ ,5L
+ ,(PDEVOPENDATA)&vDop
+ ,NULLHANDLE
+ );
+
+
+ vRect.xLeft = x;
+ vRect.xRight = x + vWidth;
+ vRect.yBottom = y;
+ vRect.yTop = y + vHeight;
+
+ m_refData = new wxRegionRefData;
+
+ //
+ // Need a PS to create a Region
+ //
+ ((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain
+ ,hDC
+ ,&vSize
+ ,PU_PELS | GPIT_MICRO | GPIA_ASSOC
+ );
+ M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS
+ ,1
+ ,&vRect
+ );
+} // end of wxRegion::wxRegion
+
+wxRegion::wxRegion(
+ const wxPoint& rTopLeft
+, const wxPoint& rBottomRight
+)
{
- m_refData = new wxRegionRefData;
- // TODO create rect region
-}
-
-wxRegion::wxRegion(const wxRect& rect)
+ RECTL vRect;
+ SIZEL vSize = {0, 0};
+ DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
+ HDC hDC = ::DevOpenDC( vHabmain
+ ,OD_MEMORY
+ ,"*"
+ ,5L
+ ,(PDEVOPENDATA)&vDop
+ ,NULLHANDLE
+ );
+
+ vRect.xLeft = rTopLeft.x;
+ vRect.xRight = rBottomRight.x;
+ vRect.yBottom = rBottomRight.y;
+ vRect.yTop = rTopLeft.y;
+
+ m_refData = new wxRegionRefData;
+
+ //
+ // Need a PS to create a Region
+ //
+ ((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain
+ ,hDC
+ ,&vSize
+ ,PU_PELS | GPIT_MICRO | GPIA_ASSOC
+ );
+ M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS
+ ,1
+ ,&vRect
+ );
+} // end of wxRegion::wxRegion
+
+wxRegion::wxRegion(
+ const wxRect& rRect
+)
{
- m_refData = new wxRegionRefData;
- // TODO create rect region
-}
-
-/*!
- * Destroy the region.
- */
+ RECTL vRect;
+ SIZEL vSize = {0, 0};
+ DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
+ HDC hDC = ::DevOpenDC( vHabmain
+ ,OD_MEMORY
+ ,"*"
+ ,5L
+ ,(PDEVOPENDATA)&vDop
+ ,NULLHANDLE
+ );
+
+
+ vRect.xLeft = rRect.x;
+ vRect.xRight = rRect.x + rRect.width;
+ vRect.yBottom = rRect.y;
+ vRect.yTop = rRect.y + rRect.height;
+
+ m_refData = new wxRegionRefData;
+
+ //
+ // Need a PS to create a Region
+ //
+ ((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain
+ ,hDC
+ ,&vSize
+ ,PU_PELS | GPIT_MICRO | GPIA_ASSOC
+ );
+ M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS
+ ,1
+ ,&vRect
+ );
+} // end of wxRegion::wxRegion
+
+//
+// Destroy the region.
+//
wxRegion::~wxRegion()
{
- // m_refData unrefed in ~wxObject
-}
+} // end of wxRegion::~wxRegion
//-----------------------------------------------------------------------------
//# Modify region
//-----------------------------------------------------------------------------
-//! Clear current region
+//
+// Clear current region
+//
void wxRegion::Clear()
{
UnRef();
-}
-
-//! Combine rectangle (x, y, w, h) with this.
-bool wxRegion::Combine(long x, long y, long width, long height, wxRegionOp op)
+} // end of wxRegion::Clear
+
+//
+// Combine rectangle (x, y, w, h) with this.
+//
+bool wxRegion::Combine(
+ wxCoord x
+, wxCoord y
+, wxCoord vWidth
+, wxCoord vHeight
+, wxRegionOp eOp
+)
{
+ //
// Don't change shared data
- if (!m_refData) {
+ //
+ if (!m_refData)
+ {
m_refData = new wxRegionRefData();
- } else if (m_refData->GetRefCount() > 1) {
- wxRegionRefData* ref = (wxRegionRefData*)m_refData;
+ }
+ else if (m_refData->GetRefCount() > 1)
+ {
+ wxRegionRefData* pRef = (wxRegionRefData*)m_refData;
+
UnRef();
- m_refData = new wxRegionRefData(*ref);
+ m_refData = new wxRegionRefData(*pRef);
}
+
+ //
// If ref count is 1, that means it's 'ours' anyway so no action.
+ //
+ RECTL vRect;
+
+ vRect.xLeft = x;
+ vRect.xRight = x + vWidth;
+ vRect.yBottom = y;
+ vRect.yTop = y + vHeight;
- // TODO create rect region
+ HRGN hRgn = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS
+ ,1
+ ,&vRect
+ );
+ LONG lMode = 0L;
- int mode = 0; // TODO platform-specific code
- switch (op)
+ switch (eOp)
{
case wxRGN_AND:
- // TODO
- break ;
+ lMode = CRGN_AND;
+ break;
+
case wxRGN_OR:
- // TODO
- break ;
+ lMode = CRGN_OR;
+ break;
+
case wxRGN_XOR:
- // TODO
- break ;
+ lMode = CRGN_XOR;
+ break;
+
case wxRGN_DIFF:
- // TODO
- break ;
+ lMode = CRGN_DIFF;
+ break;
+
case wxRGN_COPY:
default:
- // TODO
- break ;
+ lMode = CRGN_COPY;
+ break;
}
-
- // TODO do combine region
-
- return FALSE;
-}
-
-//! Union /e region with this.
-bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
+ bool bSuccess = ::GpiCombineRegion( ((wxRegionRefData*)m_refData)->m_hPS
+ ,M_REGION
+ ,M_REGION
+ ,hRgn
+ ,lMode
+ );
+ ::GpiDestroyRegion ( ((wxRegionRefData*)m_refData)->m_hPS
+ ,hRgn
+ );
+
+ return bSuccess;
+} // end of wxRegion::Combine
+
+//
+// Union region with this.
+//
+bool wxRegion::Combine(
+ const wxRegion& rRegion
+, wxRegionOp eOp
+)
{
- if (region.Empty())
+ if (rRegion.Empty())
return FALSE;
+ //
// Don't change shared data
- if (!m_refData) {
+ //
+ if (!m_refData)
+ {
m_refData = new wxRegionRefData();
- } else if (m_refData->GetRefCount() > 1) {
- wxRegionRefData* ref = (wxRegionRefData*)m_refData;
+ }
+ else if (m_refData->GetRefCount() > 1)
+ {
+ wxRegionRefData* pRef = (wxRegionRefData*)m_refData;
+
UnRef();
- m_refData = new wxRegionRefData(*ref);
+ m_refData = new wxRegionRefData(*pRef);
}
- int mode = 0; // TODO platform-specific code
- switch (op)
+ LONG lMode = 0;
+
+ switch (eOp)
{
case wxRGN_AND:
- // TODO
- break ;
+ lMode = CRGN_AND;
+ break;
+
case wxRGN_OR:
- // TODO
- break ;
+ lMode = CRGN_OR;
+ break;
+
case wxRGN_XOR:
- // TODO
- break ;
+ lMode = CRGN_XOR;
+ break;
+
case wxRGN_DIFF:
- // TODO
- break ;
+ lMode = CRGN_DIFF;
+ break;
+
case wxRGN_COPY:
default:
- // TODO
- break ;
+ lMode = CRGN_COPY;
+ break;
}
-
- // TODO combine region
-
- return FALSE;
-}
-
-bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
+ return (::GpiCombineRegion( ((wxRegionRefData*)rRegion.m_refData)->m_hPS
+ ,M_REGION
+ ,M_REGION
+ ,((wxRegionRefData*)rRegion.m_refData)->m_hRegion
+ ,lMode
+ ) != RGN_ERROR);
+} // end of wxRegion::Combine
+
+bool wxRegion::Combine(
+ const wxRect& rRect
+, wxRegionOp eOp
+)
{
- return Combine(rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight(), op);
-}
+ return Combine( rRect.GetLeft()
+ ,rRect.GetTop()
+ ,rRect.GetWidth()
+ ,rRect.GetHeight()
+ ,eOp
+ );
+} // end of wxRegion::Combine
//-----------------------------------------------------------------------------
//# Information on region
//-----------------------------------------------------------------------------
+//
// Outer bounds of region
-void wxRegion::GetBox(long& x, long& y, long&w, long &h) const
+//
+void wxRegion::GetBox(
+ wxCoord& x
+, wxCoord& y
+, wxCoord& vWidth
+, wxCoord& vHeight
+) const
{
- if (m_refData) {
- // TODO get box
- } else {
- x = y = w = h = 0;
+ if (m_refData)
+ {
+ RECTL vRect;
+
+ ::GpiQueryRegionBox( ((wxRegionRefData*)m_refData)->m_hPS
+ ,M_REGION
+ ,&vRect
+ );
+ x = vRect.xLeft;
+ y = vRect.yTop;
+ vWidth = vRect.xRight - vRect.xLeft;
+ vHeight = vRect.yTop - vRect.yBottom;
}
-}
+ else
+ {
+ x = y = vWidth = vHeight = 0L;
+ }
+} // end of wxRegion::GetBox
wxRect wxRegion::GetBox() const
{
- long x, y, w, h;
+ wxCoord x, y, w, h;
GetBox(x, y, w, h);
return wxRect(x, y, w, h);
}
+//
// Is region empty?
+//
bool wxRegion::Empty() const
{
- // TODO
- return FALSE;
-}
+ wxCoord x;
+ wxCoord y;
+ wxCoord vWidth;
+ wxCoord vHeight;
+
+ if (M_REGION == 0)
+ return TRUE;
+
+ GetBox( x
+ ,y
+ ,vWidth
+ ,vHeight
+ );
+ return ((vWidth == 0) && (vHeight == 0));
+} // end of wxRegion::Empty
//-----------------------------------------------------------------------------
-//# Tests
+// Tests
//-----------------------------------------------------------------------------
+//
// Does the region contain the point (x,y)?
-wxRegionContain wxRegion::Contains(long x, long y) const
+wxRegionContain wxRegion::Contains(
+ wxCoord x
+, wxCoord y
+) const
{
- bool bOK = FALSE; // temporary
+ bool bOK = FALSE;
+ POINTL vPoint;
+
+ vPoint.x = x;
+ vPoint.y = y;
+
if (!m_refData)
return wxOutRegion;
- // TODO. Return wxInRegion if within region.
- if (bOK)
+ LONG lInside = ::GpiPtInRegion( ((wxRegionRefData*)m_refData)->m_hPS
+ ,M_REGION
+ ,&vPoint
+ );
+ if (lInside == PRGN_INSIDE)
return wxInRegion;
return wxOutRegion;
-}
+} // end of wxRegion::Contains
+//
// Does the region contain the point pt?
-wxRegionContain wxRegion::Contains(const wxPoint& pt) const
+//
+wxRegionContain wxRegion::Contains(
+ const wxPoint& rPoint
+) const
{
- bool bOK = FALSE; // temporary
+ POINTL vPoint = { rPoint.x, rPoint.y };
+
if (!m_refData)
return wxOutRegion;
- // TODO. Return wxInRegion if within region.
- if (bOK)
+ LONG lInside = ::GpiPtInRegion( ((wxRegionRefData*)m_refData)->m_hPS
+ ,M_REGION
+ ,&vPoint
+ );
+ if (lInside == PRGN_INSIDE)
return wxInRegion;
else
return wxOutRegion;
-}
+} // end of wxRegion::Contains
+//
// Does the region contain the rectangle (x, y, w, h)?
-wxRegionContain wxRegion::Contains(long x, long y, long w, long h) const
+//
+wxRegionContain wxRegion::Contains(
+ wxCoord x
+, wxCoord y
+, wxCoord vWidth
+, wxCoord vHeight
+) const
{
- bool bOK = FALSE; // temporary
+ RECTL vRect;
+
if (!m_refData)
return wxOutRegion;
- // TODO. Return wxInRegion if within region.
- if (bOK)
+ vRect.xLeft = x;
+ vRect.yTop = y;
+ vRect.xRight = x + vWidth;
+ vRect.yBottom = y + vHeight;
+
+ if (PRGN_INSIDE == ::GpiRectInRegion( ((wxRegionRefData*)m_refData)->m_hPS
+ ,M_REGION
+ ,&vRect
+ ))
return wxInRegion;
else
return wxOutRegion;
-}
+} // end of wxRegion::Contains
+//
// Does the region contain the rectangle rect
-wxRegionContain wxRegion::Contains(const wxRect& rect) const
+//
+wxRegionContain wxRegion::Contains(
+ const wxRect& rRect
+) const
{
if (!m_refData)
return wxOutRegion;
- long x, y, w, h;
- x = rect.x;
- y = rect.y;
- w = rect.GetWidth();
- h = rect.GetHeight();
- return Contains(x, y, w, h);
-}
-
+ wxCoord x;
+ wxCoord y;
+ wxCoord vWidth;
+ wxCoord vHeight;
+
+ x = rRect.x;
+ y = rRect.y;
+ vWidth = rRect.GetWidth();
+ vHeight = rRect.GetHeight();
+ return Contains( x
+ ,y
+ ,vWidth
+ ,vHeight
+ );
+} // end of wxRegion::Contains
+
+//
// Get internal region handle
+//
WXHRGN wxRegion::GetHRGN() const
{
if (!m_refData)
return (WXHRGN) M_REGION;
}
+//
+// Set a new PS, this means we have to recreate the old region in the new
+// PS
+//
+void wxRegion::SetPS(
+ HPS hPS
+)
+{
+ RGNRECT vRgnData;
+ PRECTL pRect = NULL;
+
+ if (::GpiQueryRegionRects( ((wxRegionRefData*)m_refData)->m_hPS
+ ,((wxRegionRefData*)m_refData)->m_hRegion
+ ,NULL
+ ,&vRgnData
+ ,NULL
+ ))
+ {
+ pRect = new RECTL[vRgnData.crcReturned];
+ vRgnData.crc = vRgnData.crcReturned;
+ vRgnData.ircStart = 1;
+ if (::GpiQueryRegionRects( ((wxRegionRefData*)m_refData)->m_hPS
+ ,((wxRegionRefData*)m_refData)->m_hRegion
+ ,NULL
+ ,&vRgnData
+ ,pRect
+ ))
+ {
+ //
+ // First destroy the region out of the old PS
+ // and then create it in the new and set the new to current
+ //
+ ::GpiDestroyRegion( ((wxRegionRefData*)m_refData)->m_hPS
+ ,M_REGION
+ );
+ ((wxRegionRefData*)m_refData)->m_hRegion = ::GpiCreateRegion( hPS
+ ,vRgnData.crcReturned
+ ,pRect
+ );
+ ((wxRegionRefData*)m_refData)->m_hPS = hPS;
+ }
+ delete [] pRect;
+ }
+} // end of wxRegion::SetPS
+
///////////////////////////////////////////////////////////////////////////////
// //
// wxRegionIterator //
// //
///////////////////////////////////////////////////////////////////////////////
-/*!
- * Initialize empty iterator
- */
-wxRegionIterator::wxRegionIterator() : m_current(0), m_numRects(0), m_rects(NULL)
+//
+// Initialize empty iterator
+//
+wxRegionIterator::wxRegionIterator()
+: m_lCurrent(0)
+, m_lNumRects(0)
+, m_pRects(NULL)
{
-}
+} // end of wxRegionIterator::wxRegionIterator
wxRegionIterator::~wxRegionIterator()
{
- if (m_rects)
- delete[] m_rects;
-}
-
-/*!
- * Initialize iterator for region
- */
-wxRegionIterator::wxRegionIterator(const wxRegion& region)
+ if (m_pRects)
+ delete[] m_pRects;
+} // end of wxRegionIterator::~wxRegionIterator
+
+//
+// Initialize iterator for region
+//
+wxRegionIterator::wxRegionIterator(
+ const wxRegion& rRegion
+)
{
- m_rects = NULL;
-
- Reset(region);
-}
-
-/*!
- * Reset iterator for a new /e region.
- */
-void wxRegionIterator::Reset(const wxRegion& region)
+ m_pRects = NULL;
+ Reset(rRegion);
+} // end of wxRegionIterator::wxRegionIterator
+
+//
+// Reset iterator for a new /e region.
+//
+void wxRegionIterator::Reset(
+ const wxRegion& rRegion
+)
{
- m_current = 0;
- m_region = region;
+ m_lCurrent = 0;
+ m_vRegion = rRegion;
- if (m_rects)
- delete[] m_rects;
+ if (m_pRects)
+ delete[] m_pRects;
- m_rects = NULL;
+ m_pRects = NULL;
- if (m_region.Empty())
- m_numRects = 0;
+ if (m_vRegion.Empty())
+ m_lNumRects = 0;
else
{
- // TODO create m_rects and fill with rectangles for this region
- m_numRects = 0;
+ RGNRECT vRgnData;
+ PRECTL pRect;
+
+ if (::GpiQueryRegionRects( ((wxRegionRefData*)rRegion.m_refData)->m_hPS // Pres space
+ ,((wxRegionRefData*)rRegion.m_refData)->m_hRegion // Handle of region to query
+ ,NULL // Return all RECTs
+ ,&vRgnData // Will contain number or RECTs in region
+ ,NULL // NULL to return number of RECTs
+ ))
+ {
+ pRect = new RECTL[vRgnData.crcReturned];
+ m_pRects = new wxRect[vRgnData.crcReturned];
+ vRgnData.crc = vRgnData.crcReturned;
+ m_lNumRects = vRgnData.crcReturned;
+ vRgnData.ircStart = 1;
+ if (::GpiQueryRegionRects( ((wxRegionRefData*)rRegion.m_refData)->m_hPS // Pres space of source
+ ,((wxRegionRefData*)rRegion.m_refData)->m_hRegion // Handle of source region
+ ,NULL // Return all RECTs
+ ,&vRgnData // Operations set to return rects
+ ,pRect // Will contain the actual RECTS
+ ))
+ {
+ M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)rRegion.m_refData)->m_hPS
+ ,vRgnData.crcReturned
+ ,pRect
+ );
+ for( LONG i = 0; i < m_lNumRects; i++)
+ {
+ m_pRects[i].x = pRect[i].xLeft;
+ m_pRects[i].width = pRect[i].xRight - pRect[i].xLeft;
+ m_pRects[i].y = pRect[i].yBottom;
+ m_pRects[i].height = pRect[i].yTop - pRect[i].yBottom;
+ }
+ ((wxRegionRefData*)m_refData)->m_hPS = ((wxRegionRefData*)rRegion.m_refData)->m_hPS;
+ }
+ }
}
-}
+} // end of wxRegionIterator::Reset
-/*!
- * Increment iterator. The rectangle returned is the one after the
- * incrementation.
- */
-void wxRegionIterator::operator ++ ()
+//
+// Increment iterator. The rectangle returned is the one after the
+// incrementation.
+//
+void wxRegionIterator::operator++ ()
{
- if (m_current < m_numRects)
- ++m_current;
-}
-
-/*!
- * Increment iterator. The rectangle returned is the one before the
- * incrementation.
- */
-void wxRegionIterator::operator ++ (int)
+ if (m_lCurrent < m_lNumRects)
+ ++m_lCurrent;
+} // end of wxRegionIterator::operator ++
+
+//
+// Increment iterator. The rectangle returned is the one before the
+// incrementation.
+//
+void wxRegionIterator::operator++ (int)
{
- if (m_current < m_numRects)
- ++m_current;
-}
+ if (m_lCurrent < m_lNumRects)
+ ++m_lCurrent;
+} // end of wxRegionIterator::operator++
-long wxRegionIterator::GetX() const
+wxCoord wxRegionIterator::GetX() const
{
- if (m_current < m_numRects)
- return m_rects[m_current].x;
- return 0;
-}
+ if (m_lCurrent < m_lNumRects)
+ return m_pRects[m_lCurrent].x;
+ return 0L;
+} // end of wxRegionIterator::GetX
-long wxRegionIterator::GetY() const
+wxCoord wxRegionIterator::GetY() const
{
- if (m_current < m_numRects)
- return m_rects[m_current].y;
- return 0;
-}
+ if (m_lCurrent < m_lNumRects)
+ return m_pRects[m_lCurrent].y;
+ return 0L;
+} // end of wxRegionIterator::GetY
-long wxRegionIterator::GetW() const
+wxCoord wxRegionIterator::GetW() const
{
- if (m_current < m_numRects)
- return m_rects[m_current].width ;
- return 0;
-}
+ if (m_lCurrent < m_lNumRects)
+ return m_pRects[m_lCurrent].width ;
+ return 0L;
+} // end of wxRegionIterator::GetW
-long wxRegionIterator::GetH() const
+wxCoord wxRegionIterator::GetH() const
{
- if (m_current < m_numRects)
- return m_rects[m_current].height;
- return 0;
-}
+ if (m_lCurrent < m_lNumRects)
+ return m_pRects[m_lCurrent].height;
+ return 0L;
+} // end of wxRegionIterator::GetH