DIBCLS.H

///////////////////////////////////////////////////////////////////////////// 
// DibCls.h 
///////////////////////////////////////////////////////////////////////////// 
// Copyright 1995 - 1998 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. 
///////////////////////////////////////////////////////////////////////////// 
// 
// contains the prototypes for the CDibFIle and CDibSection classes 
// 
 
#ifndef __DIBCLASSES_H 
#define __DIBCLASSES_H 
 
 
// 
//class CDibFile 
// 
class CDibFile  
{ 
public: 
CDibFile(); 
~CDibFile(); 
 
HRESULTGetFileHeader(IStream *); 
HRESULTGetInfoHeader(IStream *); 
 
DWORDHeaderSize(){ return(m_headerSize); } 
DWORDCalcImageSize(); 
 
operator BITMAPINFO * (){ return(m_bmi.p); } 
operator BITMAPINFOHEADER * (){ return(&m_bmi.p->bmiHeader); } 
 
private: 
 
DWORDm_headerSize; 
union  
{ 
BITMAPINFO *p; 
unsigned char *bytes; 
} m_bmi; 
}; 
 
class CDibSection 
{ 
public: 
CDibSection(); 
~CDibSection(); 
 
HRESULT Create( CDibFile& ); 
HRESULTSetup( HDC basedOnThisDC); 
HRESULT ReadFrom( IStream * strm, DWORD amount ); 
HRESULTPaintTo( HDC hdc, int x = 0, int y = 0 ); 
HRESULTGetSize( SIZEL &sz); 
 
DWORDImageSize() { return(m_imageSize); } 
voidImageSize(DWORD dw) { m_imageSize = dw; } 
 
operator HANDLE() { return m_handle; } 
 
unsigned char * Base() { return(m_bitsBase); } 
 
private: 
unsigned char *m_bitsBase; 
unsigned char *m_current; 
HDCm_memDC; 
HBITMAPm_handle; 
HBITMAPm_oldBitmap; 
LONGm_h; 
LONGm_w; 
DWORDm_imageSize; 
}; 
 
 
 
#endif __DIBCLASSES_H