windows-nt/Source/XPSP1/NT/windows/richedit/re30/_devstk.h
2020-09-26 16:20:57 +08:00

71 lines
1,016 B
C++

/*
* _DEVSTK.H
*
* Purpose:
* CDevState - handle access to device descriptor
*
* Authors:
* Rick Sailor
*/
#ifndef _DEVSTK_H_
#define _DEVSTK_H_
class CTxtEdit;
class CDrawInfo;
// device descriptor
class CDevState
{
public:
CDevState(CTxtEdit * ped);
~CDevState();
BOOL IsValid() const;
BOOL IsMetafile() const;
BOOL SetDrawInfo(
DWORD dwDrawAspect,
LONG lindex,
const DVTARGETDEVICE *_ptd,
HDC hdcDraw,
HDC hicTargetDev);
BOOL SetDC(HDC hdc);
void ResetDrawInfo();
HDC GetTargetDD();
HDC GetRenderDD();
void ReleaseDC();
BOOL SameDrawAndTargetDevice();
LONG ConvertXToTarget(LONG xPixels);
LONG ConvertXToDraw(LONG xPixels);
LONG ConvertYToDraw(LONG yPixels);
protected:
CTxtEdit * _ped; // used to GetDC and ReleaseDC
CDrawInfo * _pdd;
HDC _hicMainTarget;
};
#ifndef DEBUG
#include <_devstki.h>
#endif // DEBUG
#endif // _DEVSTK_H_