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wimgctl.h
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C/C++ Source or Header
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1997-10-09
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5KB
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154 lines
//=--------------------------------------------------------------------------=
// WImgCtl.H
//=--------------------------------------------------------------------------=
// Copyright 1995 - 1997 Microsoft Corporation. All Rights Reserved.
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//=--------------------------------------------------------------------------=
//
// class declaration for the WebImage control.
//
#ifndef _WEBIMAGECONTROL_H_
#include "IPServer.H"
#include "CtrlObj.H"
#include "Internet.h"
#include "WImgInterfaces.H"
#include "Dispids.H"
#include "DibCls.H"
typedef struct tagWEBIMAGECTLSTATE {
// TOOD: put state variables here, and probably get rid of fGarbage, unless
// you have a real need for it
//
VARIANT_BOOL fGarbage;
} WEBIMAGECTLSTATE;
//=--------------------------------------------------------------------------=
// CWebImageControl
//=--------------------------------------------------------------------------=
// our control.
//
class CWebImageControl : public CInternetControl,
public IWebImage,
public ISupportErrorInfo {
public:
// IUnknown methods
//
DECLARE_STANDARD_UNKNOWN();
// IDispatch methods
//
DECLARE_STANDARD_DISPATCH();
// ISupportErrorInfo methods
//
DECLARE_STANDARD_SUPPORTERRORINFO();
// IWebImage methods
//
// TODO: copy over the method declarations from WebImageInterfaces.H
// don't forget to remove the PURE from them.
//
STDMETHOD(get_Image)(THIS_ BSTR FAR* path) ;
STDMETHOD(put_Image)(THIS_ BSTR path) ;
STDMETHOD_(void, AboutBox)(THIS) ;
STDMETHOD(Scramble)(THIS) ;
// OLE Control stuff follows:
//
CWebImageControl(IUnknown *pUnkOuter);
virtual ~CWebImageControl();
// static creation function. all controls must have one of these!
//
static IUnknown *Create(IUnknown *);
private:
// overridables that the control must implement.
//
STDMETHOD(LoadBinaryState)(IStream *pStream);
STDMETHOD(SaveBinaryState)(IStream *pStream);
STDMETHOD(LoadTextState)(IPropertyBag *pPropertyBag, IErrorLog *pErrorLog);
STDMETHOD(SaveTextState)(IPropertyBag *pPropertyBag, BOOL fWriteDefault);
STDMETHOD(OnDraw)(DWORD dvAspect, HDC hdcDraw, LPCRECTL prcBounds, LPCRECTL prcWBounds, HDC hicTargetDev, BOOL fOptimize);
virtual LRESULT WindowProc(UINT msg, WPARAM wParam, LPARAM lParam);
virtual BOOL RegisterClassData(void);
virtual HRESULT InternalQueryInterface(REFIID, void **);
virtual void BeforeCreateWindow(void);
virtual BOOL AfterCreateWindow(void);
// Internet specific callbacks:
//
/// OnData is called asynchronously as data for an object or property arrives...
virtual HRESULT OnData( DISPID id, DWORD grfBSCF,IStream * bitstrm, DWORD amount );
// OnProgess is called to allow you to present progess indication UI
virtual HRESULT OnProgress( DISPID, ULONG progress, ULONG themax, ULONG, LPCWSTR);
// private state information.
//
HRESULT SetBmpPath(const char *psz);
HRESULT SetBmpPath(IStream *);
HRESULT UpdateImage();
enum bmpDownloadStates
{
bdsNoBitsYet,
bdsGotFileHeader,
bdsGotBitmapInfo,
bdsGettingBits,
bdsBitsAreDone
};
HDC m_dc;
bmpDownloadStates m_state;
CDibFile * m_dibFile;
CDibSection * m_dib;
// Actual properties
char * m_bmpPath;
};
// TODO: if you have an array of verbs, then add an extern here with the name
// of it, so that you can include it in the DEFINE_CONTROLOBJECT.
// ie. extern VERBINFO m_WebImageCustomVerbs [];
//
extern const GUID *rgWebImagePropPages [];
DEFINE_CONTROLOBJECT(WebImage,
&CLSID_WebImage,
"WebImageCtl",
CWebImageControl::Create,
1,
&IID_IWebImage,
"WebImage.HLP",
&DIID_DWebImageEvents,
OLEMISC_SETCLIENTSITEFIRST|OLEMISC_ACTIVATEWHENVISIBLE|OLEMISC_RECOMPOSEONRESIZE|OLEMISC_CANTLINKINSIDE|OLEMISC_INSIDEOUT,
0,
RESID_TOOLBOX_BITMAP,
"WebImageWndClass",
1,
rgWebImagePropPages,
0,
NULL);
#define _WEBIMAGECONTROL_H_
#endif // _WEBIMAGECONTROL_H_