mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
172 lines
4.1 KiB
172 lines
4.1 KiB
// CWIA.H
|
|
|
|
#ifndef _CWIA_H
|
|
#define _CWIA_H
|
|
|
|
#include "wia.h"
|
|
#include "datatypes.h"
|
|
#include "sti.h"
|
|
|
|
#define MIN_PROPID 2
|
|
|
|
//
|
|
// helper MACROS
|
|
//
|
|
|
|
#define RECTWIDTH(lpRect) ((lpRect)->right - (lpRect)->left)
|
|
#define RECTHEIGHT(lpRect) ((lpRect)->bottom - (lpRect)->top)
|
|
|
|
typedef BOOL (*FPPROGRESS)(LPTSTR lpszText, LONG lPercentComplete);
|
|
typedef struct _DATA_ACQUIRE_INFO {
|
|
DWORD dwCookie;
|
|
FPPROGRESS pProgressFunc;
|
|
BOOL bPreview;
|
|
BOOL bTransferToFile;
|
|
BOOL bTransferToClipboard;
|
|
CHAR szFileName[256];
|
|
HBITMAP hBitmap;
|
|
HWND hWnd;
|
|
HGLOBAL hClipboardData;
|
|
HGLOBAL hBitmapData;
|
|
} DATA_ACQUIRE_INFO;
|
|
|
|
//
|
|
// global helpers, for all to use
|
|
//
|
|
|
|
HRESULT WriteInterfaceToGlobalInterfaceTable(DWORD *pdwCookie, IWiaItem *pIWiaItem);
|
|
HRESULT ReadInterfaceFromGlobalInterfaceTable(DWORD dwCookie, IWiaItem **ppIWiaItem);
|
|
|
|
class CWIA {
|
|
public:
|
|
CWIA(DATA_ACQUIRE_INFO* pDataAcquireInfo = NULL, IWiaItem *pRootItem = NULL);
|
|
~CWIA();
|
|
|
|
VOID CleanUp();
|
|
|
|
//
|
|
// operations
|
|
//
|
|
|
|
HRESULT GetLastWIAError(TCHAR *pszErrorText = NULL);
|
|
HRESULT ReadRangeLong(IWiaItem *pIWiaItem, PROPID propid, ULONG ulFlag, LONG *plVal);
|
|
HRESULT ReadLong(IWiaItem *pIWiaItem, PROPID propid, LONG *plVal);
|
|
HRESULT ReadStr(IWiaItem *pIWiaItem, PROPID propid, BSTR *pbstr);
|
|
HRESULT ReadGuid(IWiaItem *pIWiaItem, PROPID propid, GUID *pguidVal);
|
|
|
|
HRESULT WriteLong(IWiaItem *pIWiaItem, PROPID propid, LONG lVal);
|
|
HRESULT WriteGuid(IWiaItem *pIWiaItem, PROPID propid, GUID guidVal);
|
|
|
|
HRESULT DoBandedTransfer(DATA_ACQUIRE_INFO* pDataAcquireInfo);
|
|
HRESULT DoFileTransfer(DATA_ACQUIRE_INFO* pDataAcquireInfo);
|
|
BOOL IsAcquireComplete();
|
|
|
|
HRESULT EnumerateSupportedFormats(IWiaItem *pIWiaItem, WIA_FORMAT_INFO **ppSupportedFormats, ULONG *pulCount);
|
|
|
|
//
|
|
// Root Item operations
|
|
//
|
|
|
|
VOID SetRootItem(IWiaItem *pRootItem);
|
|
IWiaItem *GetRootItem();
|
|
LONG GetRootItemType(IWiaItem *pRootItem = NULL);
|
|
|
|
//
|
|
// standard item operations
|
|
//
|
|
|
|
BOOL SetFirstChild();
|
|
IWiaItem *GetFirstChild();
|
|
|
|
private:
|
|
|
|
//
|
|
// helpers
|
|
//
|
|
|
|
VOID SaveErrorText(TCHAR *pszText);
|
|
|
|
//
|
|
// Read/Write LONG properties
|
|
//
|
|
|
|
HRESULT WritePropLong(PROPID propid, IWiaPropertyStorage *pIWiaPropStg, LONG lVal);
|
|
HRESULT ReadPropLong(PROPID propid, IWiaPropertyStorage *pIWiaPropStg, LONG *plval);
|
|
|
|
//
|
|
// Read/Write GUID properties
|
|
//
|
|
|
|
HRESULT WritePropGUID(PROPID propid, IWiaPropertyStorage *pIWiaPropStg, GUID guidVal);
|
|
HRESULT ReadPropGUID(PROPID propid, IWiaPropertyStorage *pIWiaPropStg, GUID *pguidVal);
|
|
|
|
//
|
|
// Read/Write BSTR properties
|
|
//
|
|
|
|
HRESULT ReadPropStr(PROPID propid,IWiaPropertyStorage *pIWiaPropStg,BSTR *pbstr);
|
|
HRESULT WritePropStr(PROPID propid, IWiaPropertyStorage *pIWiaPropStg, BSTR bstr);
|
|
|
|
protected:
|
|
|
|
IWiaItem *m_pIWiaRootItem;
|
|
IWiaItem *m_pIWiaFirstChildItem;
|
|
BOOL m_bFinishedAcquire;
|
|
|
|
TCHAR m_szErrorText[MAX_PATH];
|
|
HRESULT m_hrLastError;
|
|
};
|
|
|
|
//
|
|
// IWiaDataCallback Data callback transfer
|
|
//
|
|
|
|
class CWiaDataCallback : public IWiaDataCallback
|
|
{
|
|
|
|
private:
|
|
|
|
ULONG m_cRef; // Object reference count.
|
|
LONG m_MemBlockSize;
|
|
LONG m_BytesTransfered;
|
|
GUID m_cFormat;
|
|
FPPROGRESS m_pProgressFunc;
|
|
LONG m_lPageCount;
|
|
BOOL m_bCanceled;
|
|
DATA_ACQUIRE_INFO* m_pDataAcquireInfo;
|
|
BOOL m_bBitmapCreated;
|
|
public:
|
|
|
|
CWiaDataCallback();
|
|
~CWiaDataCallback();
|
|
|
|
HRESULT _stdcall QueryInterface(const IID&,void**);
|
|
ULONG _stdcall AddRef();
|
|
ULONG _stdcall Release();
|
|
|
|
//
|
|
// public members
|
|
//
|
|
|
|
HRESULT _stdcall Initialize(DATA_ACQUIRE_INFO* pDataAcquireInfo = NULL);
|
|
HRESULT _stdcall BandedDataCallback(LONG lMessage,
|
|
LONG lStatus,
|
|
LONG lPercentComplete,
|
|
LONG lOffset,
|
|
LONG lLength,
|
|
LONG lReserved,
|
|
LONG lResLength,
|
|
BYTE* pbBuffer);
|
|
private:
|
|
|
|
//
|
|
// helpers
|
|
//
|
|
|
|
VOID AddDataToHBITMAP(HWND hWnd, HGLOBAL hBitmapData, HBITMAP *phBitmap, LONG lOffset);
|
|
VOID CreateHBITMAP(HWND hWnd, HGLOBAL hBitmapData, HBITMAP *phBitmap, LONG lOffset);
|
|
void ScreenRectToClientRect(HWND hWnd,LPRECT pRect);
|
|
|
|
};
|
|
|
|
#endif
|