Drawing with DirectDraw & GDI

// DDScreen.h: interface for the NDDScreen class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_DDSCREEN_H__56754101_B8D4_427F_9D31_51B88DBF0432__INCLUDED_)
#define AFX_DDSCREEN_H__56754101_B8D4_427F_9D31_51B88DBF0432__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <ddraw.h>
#include "DDSurface.h"


typedef struct 
{
    DWORD Width;
    DWORD Height;
    DWORD BPP;
    void* NextMode;
}NDD_VIDEOMODESSTRUCT;


#ifndef MAX_DDDEVICEID_STRING
	#define MAX_DDDEVICEID_STRING 512
#endif

#define NDD_DDVER		0x0700    //Currently support DirectX 7
// structure for direct draw drivers
struct NDD_DRIVERSTRUCT
{
	LPGUID	lpGUID;
	GUID	guid;
	char	lpName[MAX_DDDEVICEID_STRING];
	char	lpDesc[MAX_DDDEVICEID_STRING];
	DDCAPS	DDcaps;
    DDCAPS  HELcaps;

#if DIRECTDRAW_VERSION >= NDD_DDVER
	HMONITOR hMonitor;
#endif

	NDD_DRIVERSTRUCT *NextDriver;
};
		
// callback function for video mode enumeration, implemented in ddutils.cpp
HRESULT CALLBACK EnumDisplayModesCallback( LPDDSURFACEDESC2 lpDDSurfaceDesc, LPVOID lpContext  );

// callback function for devices enumeration, implemented in ddutils.cpp
#if DIRECTDRAW_VERSION >= NDD_DDVER
BOOL WINAPI DDEnumCallback( GUID FAR *lpGUID, LPSTR lpDesc, LPSTR lpName, LPVOID lpContext, HMONITOR hm );
#else
BOOL WINAPI DDEnumCallback( GUID FAR *lpGUID, LPSTR lpDesc, LPSTR lpName, LPVOID lpContext );
#endif

class NDDScreen  
{
public:
	~NDDScreen();

	static NDDScreen* Instance();

	
	void SetPalette(int Start, int Count, LPPALETTEENTRY lpPE);
	void GetPalette(int Start, int Count, LPPALETTEENTRY lpPE);
	void SetHWnd(HWND hWnd){m_lpClipper->SetHWnd(0, hWnd);};

	void GreyScale(void);
    
	int GetWidth(void) { return m_dwPixelWidth; }
	int GetHeight(void) { return m_dwPixelHeight; }
	int GetBPP(void) { return m_BPP; }
	LPDIRECTDRAW7 GetDDraw(void) { return m_lpDD; }
	LPDIRECTDRAWPALETTE GetPalette(void) { return m_lpDDPalette; }
	

public:
	void RestoreScreen();
	HRESULT DDCopyBitmap(LPDIRECTDRAWSURFACE7 pdds, HBITMAP hbm, int x, int y, int dx, int dy);
	HRESULT DDReLoadBitmap(LPDIRECTDRAWSURFACE7 pdds, LPCSTR szBitmap);
	HRESULT LoadBitmap(const char* szFilename);
	BOOL GetRGBFormat( LPDIRECTDRAWSURFACE7 Surface, RGBFORMAT* rgb);
	void SetSurfacePixelFormat(NDDSurface* surface);
	void SetSurfaceScreen(NDDSurface* surface);
	BOOL ClipRect(RECT *Rect);
	BOOL ValidateBlt(NDDSurface* lpCDXS, int *lDestX, int *lDestY, RECT *srcRect);
	HRESULT DrawBlk(NDDSurface *offSurface, int left, int top, LPRECT lpRect);
	void Fill(DWORD FillColor);
	HWND m_hWnd;
	LPDIRECTDRAW7		m_lpDD;
	LPDIRECTDRAWSURFACE7 m_lpDDSPrimary;
	LPDIRECTDRAWPALETTE m_lpDDPalette;
	LPDIRECTDRAWCLIPPER m_lpClipper;

protected:
	RECT m_ClipRect;
	NDDScreen();
	BOOL Create();
	static NDDScreen* m_pScreen;

	DWORD m_dwPixelWidth;
	DWORD m_dwPixelHeight;
	DWORD m_BPP;
};

#endif // !defined(AFX_DDSCREEN_H__56754101_B8D4_427F_9D31_51B88DBF0432__INCLUDED_)