imgdecmp.h

用Embedded Visual C++ Win32 API开发的运行于Windows CE Pocket PC的多点移动视频监控软件

/*---------------------------------------------------------------------------*\
 *
 * (c) Copyright Microsoft Corp. 1997 All Rights Reserved
 *
 *  module: imgdecmp.h
 *  date:
 *  author: scottsh
 *
 *  purpose: 
 *
\*---------------------------------------------------------------------------*/
#ifndef __IMGDECMP_H__
#define __IMGDECMP_H__

#ifdef __cplusplus
extern "C" {
#endif // __cplusplus

#include "imgrendr.h"

typedef void (CALLBACK *PROGRESSFUNC)(IImageRender *pRender, BOOL bComplete, LPARAM lParam);
typedef DWORD (CALLBACK *GETDATAFUNC)(LPSTR szBuffer, DWORD dwBufferMax, LPARAM lParam);

typedef struct tagDecompressImageInfo {
	DWORD			dwSize;					// Size of this structure
	LPBYTE			pbBuffer;				// Pointer to the buffer to use for data
	DWORD			dwBufferMax;			// Size of the buffer
	DWORD			dwBufferCurrent;		// The amount of data which is current in the buffer
	HBITMAP	*		phBM;					// Pointer to the bitmap returned (can be NULL)
	IImageRender **	ppImageRender;			// Pointer to an IImageRender object (can be NULL)
	int				iBitDepth;				// Bit depth of the output image
	LPARAM			lParam;					// User parameter for callback functions
	HDC				hdc;					// HDC to use for retrieving palettes
	int				iScale;					// Scale factor (1 - 100)
	int				iMaxWidth;				// Maximum width of the output image
	int				iMaxHeight;				// Maxumum height of the output image
	GETDATAFUNC		pfnGetData;				// Callback function to get more data
	PROGRESSFUNC	pfnImageProgress;		// Callback function to notify caller of progress decoding the image
	COLORREF		crTransparentOverride;	// If this color is not (UINT)-1, it will override the
											// transparent color in the image with this color. (GIF ONLY)
} DecompressImageInfo;

#define IMGDECOMP_E_NOIMAGE		0x800b0100

COLORREF *
#ifdef _WIN32_WCE_EMULATION
WINAPI
#endif
GetHalftonePalette();

COLORREF *
#ifdef _WIN32_WCE_EMULATION
WINAPI
#endif
Get332Palette();

HRESULT
#ifdef _WIN32_WCE_EMULATION
WINAPI
#endif
DecompressImageIndirect(DecompressImageInfo *pParams);

COLORREF
#ifdef _WIN32_WCE_EMULATION
WINAPI
#endif
GetTransparentColor();

#ifdef __cplusplus
};
#endif // __cplusplus

#endif // !__IMGDECMP_H__