Toolkit Pro - How to draw Markup with CMetaFileDC?

How to draw Markup with CMetaFileDC?

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Category: Codejock Products
Forum Name: Toolkit Pro
Forum Description: Topics Related to Codejock Toolkit Pro
URL: http://forum.codejock.com/forum_posts.asp?TID=11337
Printed Date: 08 November 2025 at 1:29am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: How to draw Markup with CMetaFileDC?

Posted By: WindFlashing
Subject: How to draw Markup with CMetaFileDC?
Date Posted: 08 July 2008 at 4:25am

I want to draw Markup with CMetaFileDC in CDocObjectServerItem::OnDraw(CDC* pDC, CSize& rSize), but it fails to render.

BOOL CMySrvrItem::OnDraw(CDC* pDC, CSize& rSize)
{
if (!pDC)
return FALSE;

// Remove this if you use rSize
UNREFERENCED_PARAMETER(rSize);

// TODO: set mapping mode and extent
// (The extent is usually the same as the size returned from OnGetExtent)
pDC->SetMapMode(MM_ANISOTROPIC);
pDC->SetWindowOrg(0,0);
pDC->SetWindowExt(3000, 3000);

// TODO: add drawing code here. Optionally, fill in the HIMETRIC extent.
// All drawing takes place in the metafile device context (pDC).
if (m_pUIElement)
{
  CXTPMarkupDrawingContext dc(pDC->m_hDC);
  CRect rc(0, 0, 3000, 3000);
  m_pUIElement->Measure(&dc, rc.Size());
  m_pUIElement->Arrange(rc);
  m_pUIElement->Render(&dc);
}

return TRUE;
}

Please help me.

Replies:

Posted By: Oleg
Date Posted: 08 July 2008 at 6:21am

Hi,

You can Render it to Buffer DC and then stretch to pDC:

BOOL CDocSrvrItem::OnDraw(CDC* pDC, CSize& rSize)
{
// Remove this if you use rSize
UNREFERENCED_PARAMETER(rSize);

CDocDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);

// TODO: set mapping mode and extent
// (The extent is usually the same as the size returned from OnGetExtent)
pDC->SetMapMode(MM_TEXT);
pDC->SetWindowOrg(0,0);
pDC->SetWindowExt(3000, 3000);

CXTPMarkupContext* pContext = XTPMarkupCreateContext(0);

CXTPMarkupUIElement* pElement = XTPMarkupParseText(pContext, _T("<Ellipse Stroke='Yellow' StrokeThickness='3' Fill='Blue' Width='100' Height='100'/>"));

XTPMarkupMeasureElement(pElement, 100, 100);

CWindowDC dcWindow(0);
CDC dc;
dc.CreateCompatibleDC(&dcWindow);

CBitmap bmp;
bmp.CreateCompatibleBitmap(&dcWindow, 100, 100);

CBitmap* pOldBitmap = dc.SelectObject(&bmp);

dc.FillSolidRect(0, 0, 100, 100, 0xFF);

if (pElement)
{
  XTPMarkupRenderElement(pElement, dc, CRect(0, 0, 100, 100));

  XTPMarkupReleaseElement(pElement);
}

pDC->StretchBlt(0, 0, 100, 100, &dc, 0, 0, 100, 100, SRCCOPY);

dc.SelectObject(pOldBitmap);

XTPMarkupReleaseContext(pContext);

return TRUE;
}

-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS

Posted By: WindFlashing
Date Posted: 08 July 2008 at 7:11am

Hi oleg,

it works great!

thanks!