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Capture an HTML document as an image

, , 19 May 2004 CPOL
Capturing HTML documents as images
/*
 *	$Header: $
 *
 *	$History: $
 */
#pragma once

#include <mshtml.h>
#include <afxdhtml.h>
#include <afxocc.h>

// CCreateHTMLImage command target
class CCreateHTMLImage : public CWnd
{
protected:
	DECLARE_DYNCREATE(CCreateHTMLImage)
	DECLARE_EVENTSINK_MAP()
	enum eEnums
	{
		CHILDBROWSER = 100,
	};
public:
	enum eOutputImageFormat
	{
		eBMP = 0,
		eJPG,
		eGIF,
		eTIFF,
		ePNG,
		eImgSize
	};

					CCreateHTMLImage();
	virtual			~CCreateHTMLImage();

	BOOL			Create(CWnd *pParent);
	BOOL			SetSaveImageFormat(eOutputImageFormat format);

	BOOL			CreateImage(IHTMLDocument2 *pDoc, LPCTSTR szDestFilename, CSize srcSize, CSize outputSize);
	BOOL			CreateImage(LPCTSTR szSrcFilename, LPCTSTR szDestFilename, CSize srcSize, CSize outputSize);

protected:
	CComPtr<IWebBrowser2> m_pBrowser;
	CWnd			m_pBrowserWnd;

	virtual BOOL	CreateControlSite(COleControlContainer* pContainer, COleControlSite** ppSite, UINT nID, REFCLSID clsid);
	virtual void	DocumentComplete(LPDISPATCH pDisp, VARIANT* URL);
	int				GetEncoderClsid(const WCHAR* format, CLSID* pClsid);

private:
	static LPCTSTR	m_ImageFormats[eImgSize];
	CLSID			m_encoderClsid;
};

class CHTMLImageControlSite : public COleControlSite
{
public:
					CHTMLImageControlSite(COleControlContainer* pCtrlCont);

protected:
// Implementation
	BEGIN_INTERFACE_PART(DocHostUIHandler, IDocHostUIHandler)
		STDMETHOD(ShowContextMenu)(DWORD, LPPOINT, LPUNKNOWN, LPDISPATCH);
		STDMETHOD(GetHostInfo)(DOCHOSTUIINFO*);
		STDMETHOD(ShowUI)(DWORD, LPOLEINPLACEACTIVEOBJECT, LPOLECOMMANDTARGET, LPOLEINPLACEFRAME, LPOLEINPLACEUIWINDOW);
		STDMETHOD(HideUI)(void);
		STDMETHOD(UpdateUI)(void);
		STDMETHOD(EnableModeless)(BOOL);
		STDMETHOD(OnDocWindowActivate)(BOOL);
		STDMETHOD(OnFrameWindowActivate)(BOOL);
		STDMETHOD(ResizeBorder)(LPCRECT, LPOLEINPLACEUIWINDOW, BOOL);
		STDMETHOD(TranslateAccelerator)(LPMSG, const GUID*, DWORD);
		STDMETHOD(GetOptionKeyPath)(OLECHAR **, DWORD);
		STDMETHOD(GetDropTarget)(LPDROPTARGET, LPDROPTARGET*);
		STDMETHOD(GetExternal)(LPDISPATCH*);
		STDMETHOD(TranslateUrl)(DWORD, OLECHAR*, OLECHAR **);
		STDMETHOD(FilterDataObject)(LPDATAOBJECT , LPDATAOBJECT*);
	END_INTERFACE_PART(DocHostUIHandler)

	DECLARE_INTERFACE_MAP()
};

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Authors

Rob Manderson
United States United States
I've been programming for 35 years - started in machine language on the National Semiconductor SC/MP chip, moved via the 8080 to the Z80 - graduated through HP Rocky Mountain Basic and HPL - then to C and C++ and now C#.

I used (30 or so years ago when I worked for Hewlett Packard) to repair HP Oscilloscopes and Spectrum Analysers - for a while there I was the one repairing DC to daylight SpecAns in the Asia Pacific area.

Afterward I was the fourth team member added to the Australia Post EPOS project at Unisys Australia. We grew to become an A$400 million project. I wrote a few device drivers for the project under Microsoft OS/2 v 1.3 - did hardware qualification and was part of the rollout team dealing directly with the customer.

Born and bred in Melbourne Australia, now living in Scottsdale Arizona USA, became a US Citizen on September 29th, 2006.

I work for a medical insurance broker, learning how to create ASP.NET websites in VB.Net and C#. It's all good.

Oh, I'm also a Kentucky Colonel. http://www.kycolonels.org

Vadim Tabakman
Web Developer
United States United States
Technical Evangelist and Computer Programmer. OS of choice is any Win32 OS. Started working in the gaming industry, programming mainframe VOS OS and dealing with Slot machine serials comms protocols, creating test-tools and line monitoring software on W2K.

Moved on to working in a small software company that worked with electronic forms.

Next, worked at a company with Security, Identity and Trust Solutions. Learnt lots about encryption, signing, digital signatures, hashing and all sorts of new buzz words. It might as well be another language.

Now at Nintex. World class workflow software vendor and am a Technical Evangelist. IF you're looking to automate business processes, this is the place to look.

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