zgraphsection.h

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#ifndef ZGRAPHSECTION_H_HEADER_INCLUDED_C0051BFE
#define ZGRAPHSECTION_H_HEADER_INCLUDED_C0051BFE

#include "zGraphDDB.h"
#include "zGraphDib.h"

/*	使用方法:create
	HDC sdc = ::GetDC(NULL);
	zGraphDib::zGraphDibInfo bmi;
	int colordepth = GetDeviceCaps(sdc,BITSPIXEL);
	bmi.SetFormat(width,height,colordepth,BI_RGB);
	section.CreateDIBSection(NULL,bmi.GetBMI(),DIB_RGB_COLORS,NULL,NULL);
	tbm=section.m_hBitmap;
	if (tbm==NULL)
	{
		graph_config->err_log.log("建立兼容位图失败\n");
		::OutputDebugString("建立兼容位图失败\n");
	}

	otbm = (HBITMAP)::SelectObject(tdc, tbm);
	::ReleaseDC(NULL, sdc);

	draw:
	::BitBlt(tdc, x, y, rect->right - rect->left, rect->bottom - rect->top, 
					graph_dc, rect->left - x, rect->top - y, SRCCOPY);

*/

class zGraphSection : public zGraphDDB, public zGraphDib
{
public:
    zGraphSection();
    virtual ~zGraphSection();

    bool CreateDIBSection(HDC hDC, const BITMAPINFO *pBMI, UINT iUsage, HANDLE hSection, DWORD dwOffset);
    UINT GetColorTable();
    UINT SetColorTable();
};


#endif /* ZGRAPHSECTION_H_HEADER_INCLUDED_C0051BFE */