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   源码介绍

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 截图
 

 

// ScreenCapture.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "ScreenCapture.h"
#include <stdio.h>
#include "avifile.h"
#include <shellapi.h>
#include <commdlg.h>

#define MAX_LOADSTRING 100

#define	WM_NOTIFYICON_MESSAGE	WM_USER 1000

#define	ErrorMessage(x)		MessageBox(NULL,x,"Error",MB_OK|MB_ICONERROR)

#define	WINDOW_MODE			true				//Not in fullscreen mode
#define BITSPERPIXEL		32

HINSTANCE hInst;								// current instance
TCHAR szTitle[MAX_LOADSTRING];					// The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];			// the main window class name

ATOM				MyRegisterClass(HINSTANCE hInstance);
BOOL				InitInstance(HINSTANCE, int);
LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK	About(HWND, UINT, WPARAM, LPARAM);
   
HWND	ghWnd;
HDC		hBackDC=NULL;
LPVOID	pBits=NULL;
HBITMAP	hBackBitmap=NULL;
HBITMAP	hOldBitmap=NULL;

int	nDisplayWidth;
int	nDisplayHeight;

IDirect3D9*			g_pD3D=NULL;
IDirect3DDevice9*	g_pd3dDevice=NULL;
IDirect3DSurface9*	g_pSurface=NULL;

HRESULT Reset();
void	Render();
void	Cleanup();
HRESULT	InitD3D(HWND hWnd);
void	SaveBitmap(char *szFilename,HBITMAP hBitmap);

UINT_PTR	nTimerId=0;
CAviFile	*pAviFile=NULL;
HMENU		ghMenu=NULL;
RECT		gScreenRect ={0,0,0,0};
bool		gbCapturing=false;

int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
	MSG msg;
	HACCEL hAccelTable;

	// Initialize global strings
	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
	LoadString(hInstance, IDC_SCREENCAPTURE, szWindowClass, MAX_LOADSTRING);
	MyRegisterClass(hInstance);

	// Perform application initialization:
	if (!InitInstance (hInstance, nCmdShow)) 
	{
		return FALSE;
	}

	hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_SCREENCAPTURE);

	// Main message loop:
	while (GetMessage(&msg, NULL, 0, 0)) 
	{
		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) 
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}

	return (int) msg.wParam;
}



//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
//    This function and its usage are only necessary if you want this code
//    to be compatible with Win32 systems prior to the 'RegisterClassEx'
//    function that was added to Windows 95. It is important to call this function
//    so that the application will get 'well formed' small icons associated
//    with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
	WNDCLASSEX wcex;

	wcex.cbSize = sizeof(WNDCLASSEX); 

	wcex.style			= CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc	= (WNDPROC)WndProc;
	wcex.cbClsExtra		= 0;
	wcex.cbWndExtra		= 0;
	wcex.hInstance		= hInstance;
	wcex.hIcon			= LoadIcon(hInstance, (LPCTSTR)IDI_SCREENCAPTURE);
	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground	= NULL;//(HBRUSH)(COLOR_WINDOW 1);
	wcex.lpszMenuName	= (LPCTSTR)IDC_SCREENCAPTURE;
	wcex.lpszClassName	= szWindowClass;
	wcex.hIconSm		= LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);

	return RegisterClassEx(&wcex);
}

//
//   FUNCTION: InitInstance(HANDLE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{

   hInst = hInstance; // Store instance handle in our global variable

   ghWnd = CreateWindow(szWindowClass, szTitle, WS_POPUPWINDOW|WS_CAPTION|WS_VISIBLE,
      480, 400, 320, 240, NULL, NULL, hInstance, NULL);

   if (!ghWnd)
   {
      return FALSE;
   }

   ShowWindow(ghWnd, nCmdShow);
   UpdateWindow(ghWnd);

   return TRUE;
}

//
//  FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND	- process the application menu
//  WM_PAINT	- Paint the main window
//  WM_DESTROY	- post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	int wmId, wmEvent;
	static NOTIFYICONDATA	nid;
	static RECT	clientRect = {0,0,0,0};
	static bool	bMinimized=false;

	switch (message) 
	{
	case WM_SYSCOMMAND:
		{
			if(wParam==SC_CLOSE)
			{
				SendMessage(hWnd,WM_SYSCOMMAND,SC_MINIMIZE,0);
				return 0;
			}
			if(wParam==SC_MINIMIZE)
			{
				bMinimized=true;
				LONG_PTR ret=DefWindowProc(hWnd,message,wParam,lParam);
				SendMessage(hWnd,WM_COMMAND,MAKEWPARAM(ID_FILE_HIDEWINDOW,0),0);
				return ret;
			}
			return DefWindowProc(hWnd, message, wParam, lParam);
		}

	case WM_COMMAND:
		wmId    = LOWORD(wParam); 
		wmEvent = HIWORD(wParam); 
		// Parse the menu selections:
		switch (wmId)
		{
		case ID_FILE_STARTCAPTURINGTOAVI:
		case ID_CAPTURE_START:
			{
				if(pAviFile==NULL)
				{
					OPENFILENAME	ofn;
					char	szFileName[512];
					strcpy(szFileName,"Output.avi");
					ZeroMemory(&ofn,sizeof(ofn));
					ofn.lStructSize=sizeof(OPENFILENAME);
					ofn.Flags=OFN_HIDEREADONLY|OFN_PATHMUSTEXIST;
					ofn.lpstrFilter="Avi Files (*.avi)\0*.avi\0";
					ofn.lpstrDefExt="avi";				
					ofn.lpstrFile=szFileName;
					ofn.nMaxFile=512;
					ofn.hwndOwner = hWnd;
					if(!GetSaveFileName(&ofn))	break;

					pAviFile = new CAviFile(szFileName);
				}
			
				nid.hIcon=LoadIcon(hInst,MAKEINTRESOURCE(IDI_ICON_PAUSE));
				strcpy(nid.szTip,"Capturing the Screen - Double Click to Pause");

				if(!Shell_NotifyIcon(NIM_MODIFY,&nid))				//Modify the Icon State
					MessageBox(NULL,"Unable to Set Notification Icon","Error",MB_ICONINFORMATION|MB_OK);

				SendMessage(hWnd,WM_SYSCOMMAND,SC_MINIMIZE,0);

                gbCapturing = true;

				break;
			}
		case ID_FILE_PAUSECAPTURINGTOAVI:
		case ID_CAPTURE_STOP:
			{				
				nid.hIcon=LoadIcon(hInst,MAKEINTRESOURCE(IDI_ICON_START));
				strcpy(nid.szTip,"Screen Capture Paused - Double Click to Resume");

				if(!Shell_NotifyIcon(NIM_MODIFY,&nid))				//Modify the Icon State
					MessageBox(NULL,"Unable to Set Notification Icon","Error",MB_ICONINFORMATION|MB_OK);

				gbCapturing = false;

				break;
			}
		case ID_FILE_SHOWWINDOW:
			{
				if(bMinimized)	ShowWindow(hWnd,SW_RESTORE);
				else			ShowWindow(hWnd,SW_SHOW);
				SetForegroundWindow(hWnd);
				bMinimized=false;
				break;
			}
		case ID_FILE_HIDEWINDOW:
			{
				ShowWindow(hWnd,SW_HIDE);
				break;
			}
		case ID_FILE_CAPTURESCREENSHOT:
		case ID_EDIT_SAVEASBMP:
			{
				OPENFILENAME	ofn;
				char	szFileName[512]; 

				strcpy(szFileName,"ScreenShot.bmp");

                ZeroMemory(&ofn,sizeof(ofn));
				ofn.lStructSize=sizeof(OPENFILENAME);
				ofn.Flags=OFN_HIDEREADONLY|OFN_PATHMUSTEXIST;
				ofn.lpstrFilter="Bitmap Files (*.bmp)\0*.bmp\0";
				ofn.lpstrDefExt="bmp";
				ofn.lpstrFile=szFileName;
				ofn.nMaxFile=512;
				ofn.hwndOwner = hWnd;
				if(!GetSaveFileName(&ofn))	break;

				SetCursor(LoadCursor(NULL,IDC_WAIT));	

				g_pd3dDevice->GetFrontBufferData(0, g_pSurface);			
				D3DXSaveSurfaceToFile(szFileName,D3DXIFF_BMP,g_pSurface,NULL,NULL);		//Save to File

				D3DLOCKED_RECT	lockedRect;
				if(FAILED(g_pSurface->LockRect(&lockedRect,NULL,D3DLOCK_NO_DIRTY_UPDATE|D3DLOCK_NOSYSLOCK|D3DLOCK_READONLY)))
				{
					ErrorMessage("Unable to Lock Front Buffer Surface");	break;
				}
				for(int i=0;i<gScreenRect.bottom;i  )
				{
					memcpy((BYTE*)pBits (gScreenRect.bottom-i-1)*gScreenRect.right*BITSPERPIXEL/8,(BYTE*)lockedRect.pBits i*lockedRect.Pitch,gScreenRect.right*BITSPERPIXEL/8);//g_d3dpp.BackBufferHeight*g_d3dpp.BackBufferWidth*4);				
				}
				g_pSurface->UnlockRect();
				InvalidateRect(hWnd,NULL,false);

				SetCursor(LoadCursor(NULL,IDC_ARROW));
				break;
			}
		case IDM_ABOUT:
			DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
			break;
		case IDM_EXIT:
			DestroyWindow(hWnd);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
		}
		break;
	case WM_INITMENU:
		{
			HMENU	hMenu = (HMENU)wParam;
			EnableMenuItem(hMenu,ID_FILE_SHOWWINDOW,IsWindowVisible(hWnd)?MF_GRAYED:MF_ENABLED|MF_BYCOMMAND);
			EnableMenuItem(hMenu,ID_FILE_HIDEWINDOW,IsWindowVisible(hWnd)?MF_ENABLED:MF_GRAYED|MF_BYCOMMAND);
			EnableMenuItem(hMenu,ID_FILE_CAPTURESCREENSHOT,gbCapturing?MF_GRAYED|MF_BYCOMMAND:MF_ENABLED);
			EnableMenuItem(hMenu,ID_FILE_STARTCAPTURINGTOAVI,gbCapturing?MF_GRAYED|MF_BYCOMMAND:MF_ENABLED);
			EnableMenuItem(hMenu,ID_FILE_PAUSECAPTURINGTOAVI,gbCapturing?MF_ENABLED:MF_GRAYED|MF_BYCOMMAND);
			EnableMenuItem(hMenu,ID_CAPTURE_START,gbCapturing?MF_GRAYED|MF_BYCOMMAND:MF_ENABLED);
			EnableMenuItem(hMenu,ID_CAPTURE_STOP,gbCapturing?MF_ENABLED:MF_GRAYED|MF_BYCOMMAND);			
			break;
		}
	case WM_INITMENUPOPUP:
		{
			EnableMenuItem(ghMenu,ID_FILE_SHOWWINDOW,IsWindowVisible(hWnd)?MF_GRAYED:MF_ENABLED|MF_BYCOMMAND);
			EnableMenuItem(ghMenu,ID_FILE_HIDEWINDOW,IsWindowVisible(hWnd)?MF_ENABLED:MF_GRAYED|MF_BYCOMMAND);
			EnableMenuItem(ghMenu,ID_FILE_CAPTURESCREENSHOT,gbCapturing?MF_GRAYED|MF_BYCOMMAND:MF_ENABLED);
			EnableMenuItem(ghMenu,ID_FILE_STARTCAPTURINGTOAVI,gbCapturing?MF_GRAYED|MF_BYCOMMAND:MF_ENABLED);
			EnableMenuItem(ghMenu,ID_FILE_PAUSECAPTURINGTOAVI,gbCapturing?MF_ENABLED:MF_GRAYED|MF_BYCOMMAND);
			EnableMenuItem(ghMenu,ID_CAPTURE_START,gbCapturing?MF_GRAYED|MF_BYCOMMAND:MF_ENABLED);
			EnableMenuItem(ghMenu,ID_CAPTURE_STOP,gbCapturing?MF_ENABLED:MF_GRAYED|MF_BYCOMMAND);			
			break;
		}
	case WM_CREATE:
		{
			LRESULT	ret=DefWindowProc(hWnd,message,wParam,lParam);
			if(ret<0)	return ret;

			BITMAPINFO	bmpInfo;
			ZeroMemory(&bmpInfo,sizeof(BITMAPINFO));
			bmpInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
			bmpInfo.bmiHeader.biBitCount=BITSPERPIXEL;
			bmpInfo.bmiHeader.biCompression = BI_RGB;
			bmpInfo.bmiHeader.biWidth=GetSystemMetrics(SM_CXSCREEN);
			bmpInfo.bmiHeader.biHeight=GetSystemMetrics(SM_CYSCREEN);
			bmpInfo.bmiHeader.biPlanes=1;
			bmpInfo.bmiHeader.biSizeImage=abs(bmpInfo.bmiHeader.biHeight)*bmpInfo.bmiHeader.biWidth*bmpInfo.bmiHeader.biBitCount/8;

			HDC	hdc=GetDC(GetDesktopWindow());
			hBackDC=CreateCompatibleDC(hdc);
			hBackBitmap=CreateDIBSection(hdc,&bmpInfo,DIB_RGB_COLORS,&pBits,NULL,0);
			if(hBackBitmap==NULL)
			{
				ErrorMessage("Unable to Create BackBuffer Bitamp");		return -1;
			}
			ReleaseDC(GetDesktopWindow(),hdc);

			ZeroMemory(&nid,sizeof(nid));
			nid.cbSize=sizeof(nid);
			nid.uID=1000;
			nid.uFlags=NIF_ICON|NIF_MESSAGE|NIF_TIP;
			nid.hIcon=LoadIcon(hInst,MAKEINTRESOURCE(IDI_SCREENCAPTURE));
			nid.hWnd=hWnd;
			strcpy(nid.szTip,"Screen Capture Application - Double Click to Start Capturing");
			nid.uCallbackMessage=WM_NOTIFYICON_MESSAGE;
			if(!Shell_NotifyIcon(NIM_ADD,&nid))	MessageBox(NULL,"Unable to Set Notification Icon","Error",MB_ICONINFORMATION|MB_OK);
			ghMenu=LoadMenu(hInst,MAKEINTRESOURCE(IDC_SCREENCAPTURE));

			if(FAILED(InitD3D(hWnd)))	return -1;

			nTimerId=SetTimer(hWnd,12345,500,NULL);	//Timer set to 500 ms.

			return ret;
		}
	case WM_CHAR:
		{
			if(wParam==VK_ESCAPE)
				DestroyWindow(hWnd);
			break;
		}
	case WM_TIMER:
		{
			if(gbCapturing == false)	break;

			g_pd3dDevice->GetFrontBufferData(0, g_pSurface);			
			D3DLOCKED_RECT	lockedRect;
			if(FAILED(g_pSurface->LockRect(&lockedRect,&gScreenRect,D3DLOCK_NO_DIRTY_UPDATE|D3DLOCK_NOSYSLOCK|D3DLOCK_READONLY)))
			{
				ErrorMessage("Unable to Lock Front Buffer Surface");	break;
			}
			for(int i=0;i<gScreenRect.bottom;i  )
			{
				memcpy((BYTE*)pBits (gScreenRect.bottom-i-1)*gScreenRect.right*BITSPERPIXEL/8,(BYTE*)lockedRect.pBits i*lockedRect.Pitch,gScreenRect.right*BITSPERPIXEL/8);
			}
			g_pSurface->UnlockRect();

			InvalidateRect(hWnd,NULL,false);

			pAviFile->AppendNewFrame(gScreenRect.right,gScreenRect.bottom,pBits);			//Append this Captured ScreenShot to the Movie

			break;
		}
	case WM_PAINT:
		{
			PAINTSTRUCT	ps;
			HBITMAP hOldBitmap = (HBITMAP)SelectObject(hBackDC,hBackBitmap);
			HDC hdc = BeginPaint(hWnd, &ps);
			StretchBlt(hdc,0,0,clientRect.right,clientRect.bottom,hBackDC,0,0,gScreenRect.right,gScreenRect.bottom,SRCCOPY);
			EndPaint(hWnd, &ps);
			SelectObject(hBackDC,hOldBitmap);
			break;
		}
	case WM_SIZE:
		{
			clientRect.right = LOWORD(lParam);
			clientRect.bottom = HIWORD(lParam);
			break;
		}
	case WM_NOTIFYICON_MESSAGE:
		{
			switch(lParam)
			{
				case WM_MOUSEMOVE:break;
				case WM_LBUTTONDBLCLK:
					{						
						SendMessage(hWnd,WM_COMMAND,MAKEWPARAM(gbCapturing?ID_FILE_PAUSECAPTURINGTOAVI:ID_FILE_STARTCAPTURINGTOAVI,0),0);
						break;
					}
				case WM_RBUTTONDOWN:
					{
						POINT pt;GetCursorPos(&pt);
						SetForegroundWindow(hWnd);
						TrackPopupMenu(GetSubMenu(ghMenu,0),TPM_LEFTALIGN|TPM_BOTTOMALIGN,pt.x,pt.y,0,hWnd,NULL);
						break;
					}
			}
			break;
		}
	case WM_DESTROY:
		{
			if(nTimerId)
			{
				KillTimer(hWnd,nTimerId);
				nTimerId=0;
			}
			Cleanup();
			if(pAviFile)
			{
				delete pAviFile;
				pAviFile = NULL;
			}
			if(hBackDC)
			{
				DeleteDC(hBackDC);
				hBackDC=NULL;
			}
			if(hBackBitmap)
			{
				DeleteObject(hBackBitmap);
				hBackBitmap=NULL;
			}
			Shell_NotifyIcon(NIM_DELETE,&nid);
			DestroyMenu(ghMenu);
			PostQuitMessage(0);
			break;
		}
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}

// Message handler for about box.
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
	case WM_INITDIALOG:
		return TRUE;

	case WM_COMMAND:
		if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) 
		{
			EndDialog(hDlg, LOWORD(wParam));
			return TRUE;
		}
		break;
	}
	return FALSE;
}

void Render()
{
	HRESULT	hr;
	if(g_pd3dDevice)
	{
		hr=g_pd3dDevice->TestCooperativeLevel();//Check Device Status - if Alt tab or some such thing have caused any trouble
		if(hr!=D3D_OK)
		{
			if(hr==D3DERR_DEVICELOST)	return;	//Device is lost - Do not render now 
			if(hr==D3DERR_DEVICENOTRESET)		//Device is ready to be acquired
			{	
				if(FAILED(Reset()))					
				{		
					DestroyWindow(ghWnd);		//If Unable to Reset Device - Close the Application
					return;	
				}	
			}
		}
		g_pd3dDevice->Clear(0,NULL,D3DCLEAR_TARGET,D3DCOLOR_XRGB(0,0,200),1.0f,0);
		g_pd3dDevice->BeginScene();
		g_pd3dDevice->EndScene();
		g_pd3dDevice->Present(NULL,NULL,NULL,NULL);
	}
}

void Cleanup()
{
	if(g_pSurface)
	{
		g_pSurface->Release();
		g_pSurface=NULL;
	}
	if(g_pd3dDevice)
	{
		g_pd3dDevice->Release();
		g_pd3dDevice=NULL;
	}
	if(g_pD3D)
	{
		g_pD3D->Release();
		g_pD3D=NULL;
	}
}

HRESULT	InitD3D(HWND hWnd)
{
	D3DDISPLAYMODE	ddm;
	D3DPRESENT_PARAMETERS	d3dpp;

	if((g_pD3D=Direct3DCreate9(D3D_SDK_VERSION))==NULL)
	{
		ErrorMessage("Unable to Create Direct3D ");
		return E_FAIL;
	}

	if(FAILED(g_pD3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT,&ddm)))
	{
		ErrorMessage("Unable to Get Adapter Display Mode");
		return E_FAIL;
	}

	ZeroMemory(&d3dpp,sizeof(D3DPRESENT_PARAMETERS));

	d3dpp.Windowed=WINDOW_MODE;
	d3dpp.Flags=D3DPRESENTFLAG_LOCKABLE_BACKBUFFER;
	d3dpp.BackBufferFormat=ddm.Format;
	d3dpp.BackBufferHeight=nDisplayHeight=gScreenRect.bottom =ddm.Height;
	d3dpp.BackBufferWidth=nDisplayWidth=gScreenRect.right =ddm.Width;
	d3dpp.MultiSampleType=D3DMULTISAMPLE_NONE;
	d3dpp.SwapEffect=D3DSWAPEFFECT_DISCARD;
	d3dpp.hDeviceWindow=hWnd;
	d3dpp.PresentationInterval=D3DPRESENT_INTERVAL_DEFAULT;
	d3dpp.FullScreen_RefreshRateInHz=D3DPRESENT_RATE_DEFAULT;

	if(FAILED(g_pD3D->CreateDevice(D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL,hWnd,D3DCREATE_SOFTWARE_VERTEXPROCESSING ,&d3dpp,&g_pd3dDevice)))
	{
		ErrorMessage("Unable to Create Device");
		return E_FAIL;
	}

	if(FAILED(g_pd3dDevice->CreateOffscreenPlainSurface(ddm.Width, ddm.Height, D3DFMT_A8R8G8B8, D3DPOOL_SCRATCH, &g_pSurface, NULL)))
	{
		ErrorMessage("Unable to Create Surface");
		return E_FAIL;
	}

	return S_OK;
}

HRESULT Reset()
{
	D3DDISPLAYMODE	ddm;
	D3DPRESENT_PARAMETERS	d3dpp;

	if(g_pSurface)														//Release the Surface - we need to get the latest surface
	{
		g_pSurface->Release();
		g_pSurface = NULL;
	}

	if(FAILED(g_pD3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT,&ddm)))	//User might have changed the mode - Get it afresh
	{
		ErrorMessage("Unable to Get Adapter Display Mode");
		return E_FAIL;
	}

	ZeroMemory(&d3dpp,sizeof(D3DPRESENT_PARAMETERS));

	d3dpp.Windowed=WINDOW_MODE;
	d3dpp.Flags=D3DPRESENTFLAG_LOCKABLE_BACKBUFFER;
	d3dpp.BackBufferFormat=ddm.Format;
	d3dpp.BackBufferHeight=nDisplayHeight=gScreenRect.bottom =ddm.Height;
	d3dpp.BackBufferWidth=nDisplayWidth=gScreenRect.right =ddm.Width;
	d3dpp.MultiSampleType=D3DMULTISAMPLE_NONE;
	d3dpp.SwapEffect=D3DSWAPEFFECT_DISCARD;
	d3dpp.hDeviceWindow=ghWnd;
	d3dpp.PresentationInterval=D3DPRESENT_INTERVAL_DEFAULT;
	d3dpp.FullScreen_RefreshRateInHz=D3DPRESENT_RATE_DEFAULT;

	if(FAILED(g_pd3dDevice->Reset(&d3dpp)))
	{
		//ErrorMessage("Unable to Create Device");				//Dont present messages when device is lost
		return E_FAIL;
	}

	if(FAILED(g_pd3dDevice->CreateOffscreenPlainSurface(ddm.Width, ddm.Height, D3DFMT_A8R8G8B8, D3DPOOL_SCRATCH, &g_pSurface, NULL)))
	{
		//ErrorMessage("Unable to Create Surface");
		return E_FAIL;
	}

	return S_OK;
}

void	SaveBitmap(char *szFilename,HBITMAP hBitmap)
{
	HDC					hdc=NULL;
	FILE*				fp=NULL;
	LPVOID				pBuf=NULL;
	BITMAPINFO			bmpInfo;
	BITMAPFILEHEADER	bmpFileHeader;

	do{

		hdc=GetDC(NULL);
		ZeroMemory(&bmpInfo,sizeof(BITMAPINFO));
		bmpInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
		GetDIBits(hdc,hBitmap,0,0,NULL,&bmpInfo,DIB_RGB_COLORS);

		if(bmpInfo.bmiHeader.biSizeImage<=0)
			bmpInfo.bmiHeader.biSizeImage=bmpInfo.bmiHeader.biWidth*abs(bmpInfo.bmiHeader.biHeight)*(bmpInfo.bmiHeader.biBitCount 7)/8;

		if((pBuf=malloc(bmpInfo.bmiHeader.biSizeImage))==NULL)
		{
			MessageBox(NULL,_T("Unable to Allocate Bitmap Memory"),_T("Error"),MB_OK|MB_ICONERROR);
			break;
		}
		
		bmpInfo.bmiHeader.biCompression=BI_RGB;
		GetDIBits(hdc,hBitmap,0,bmpInfo.bmiHeader.biHeight,pBuf,&bmpInfo,DIB_RGB_COLORS);	

		if((fp=fopen(szFilename,"wb"))==NULL)
		{
			MessageBox(NULL,_T("Unable to Create Bitmap File"),_T("Error"),MB_OK|MB_ICONERROR);
			break;
		}

		bmpFileHeader.bfReserved1=0;
		bmpFileHeader.bfReserved2=0;
		bmpFileHeader.bfSize=sizeof(BITMAPFILEHEADER) sizeof(BITMAPINFOHEADER) bmpInfo.bmiHeader.biSizeImage;
		bmpFileHeader.bfType='MB';
		bmpFileHeader.bfOffBits=sizeof(BITMAPFILEHEADER) sizeof(BITMAPINFOHEADER);

		fwrite(&bmpFileHeader,sizeof(BITMAPFILEHEADER),1,fp);
		fwrite(&bmpInfo.bmiHeader,sizeof(BITMAPINFOHEADER),1,fp);
		fwrite(pBuf,bmpInfo.bmiHeader.biSizeImage,1,fp);

	}while(false);

		if(hdc)
			ReleaseDC(NULL,hdc);

		if(pBuf)
			free(pBuf);

		if(fp)
			fclose(fp);
}