Exemplos de GetDcMirror em C++ (Cpp)

Exemplo n.º 1

Arquivo: tableinitcmtemplate.cpp Projeto: runsoftdev/ultravnc

static void
rfbInitColourMapSingleTableOUTVNC (char **table,
                                   rfbPixelFormat *in,
                                   rfbPixelFormat *out)
{
    vnclog.Print(LL_ALL, VNCLOG("rfbInitColourMapSingleTable called\n"));

    // ALLOCATE SPACE FOR COLOUR TABLE

    unsigned int nEntries = 1 << in->bitsPerPixel;

    // Allocate the table
    if (*table) free(*table);
    *table = (char *)malloc(nEntries * sizeof(OUT_T));
    if (*table == NULL)
    {
        vnclog.Print(LL_INTERR, VNCLOG("failed to allocate translation table\n"));
        return;
    }

    // Obtain the system palette
    bool create_dc = false;
    HDC hDC = GetDcMirror();
    if (hDC == NULL)
    {
        vnclog.Print(LL_ALL, VNCLOG("Using video Palette\n"));
        hDC = GetDC(NULL);
    }
    else
    {
        vnclog.Print(LL_ALL, VNCLOG("Using mirror video Palette\n"));
        create_dc = true;
    }

    PALETTEENTRY palette[256];
    UINT entries = ::GetSystemPaletteEntries(hDC,	0, 256, palette);
    vnclog.Print(LL_INTINFO, VNCLOG("got %u palette entries\n"), GetLastError());
    if (create_dc) DeleteDC(hDC);
    else ReleaseDC(NULL, hDC);

    // - Set the rest of the palette to something nasty but usable
    unsigned int i;
    for (i=entries; i<256; i++) {
        palette[i].peRed = i % 2 ? 255 : 0;
        palette[i].peGreen = i/2 % 2 ? 255 : 0;
        palette[i].peBlue = i/4 % 2 ? 255 : 0;
    }

    // COLOUR TRANSLATION

    // We now have the colour table intact.  Map it into a translation table
    int r, g, b;
    OUT_T *t = (OUT_T *)*table;

    for (i = 0; i < nEntries; i++)
    {
        // Split down the RGB data
        r = palette[i].peRed;
        g = palette[i].peGreen;
        b = palette[i].peBlue;

        // Now translate it
        t[i] = ((((r * out->redMax + 127) / 255) << out->redShift) |
                (((g * out->greenMax + 127) / 255) << out->greenShift) |
                (((b * out->blueMax + 127) / 255) << out->blueShift));
#if (OUTVNC != 8)
        if (out->bigEndian != in->bigEndian)
        {
            t[i] = SwapOUTVNC(t[i]);
        }
#endif
    }

    vnclog.Print(LL_ALL, VNCLOG("rfbInitColourMapSingleTable done\n"));
}

Exemplo n.º 2

Arquivo: videodriver.cpp Projeto: adrianovieira/cacic3-agente_windows

void
VIDEODRIVER::VIDEODRIVER_start(int x,int y,int w,int h)
{
	blocked=true;
	oldaantal=1;
	mypVideoMemory=NULL;
	OSVER=OSVersion();
	if (OSVER==OSWIN2000||OSVER==OSWIN2003||OSVER==OSWINXP)
	{
		if (Mirror_driver_attach_XP(x,y,w,h))
		{
			if (GetDcMirror()!=NULL)
			{
			mypVideoMemory=VideoMemory_GetSharedMemory();
			mypchangebuf=(PCHANGES_BUF)mypVideoMemory;
			myframebuffer=mypVideoMemory+sizeof(CHANGES_BUF);
			}
			else
			{
				mypVideoMemory=NULL;
			}
		}
		else
		{
			mypVideoMemory=NULL;
		}
	}
	if (OSVER==OSVISTA)
	{
		if (Mirror_driver_Vista(1,x,y,w,h))
		{
			if (GetDcMirror()!=NULL)
			{
			mypVideoMemory=VideoMemory_GetSharedMemory();
			mypchangebuf=(PCHANGES_BUF)mypVideoMemory;
			myframebuffer=mypVideoMemory+sizeof(CHANGES_BUF);
			//if (mypVideoMemory==NULL) MessageBox(NULL,"MVideo driver failed", NULL, MB_OK);
			}
			else
			{
	//			MessageBox(NULL,"Video driver failed", NULL, MB_OK);
////////////////////////////////////////////////////////////////////////////////
				if (Mirror_driver_attach_XP(x,y,w,h))
					{
						if (GetDcMirror()!=NULL)
						{
						mypVideoMemory=VideoMemory_GetSharedMemory();
						mypchangebuf=(PCHANGES_BUF)mypVideoMemory;
						myframebuffer=mypVideoMemory+sizeof(CHANGES_BUF);
						}
						else
						{
							mypVideoMemory=NULL;
						}
					}
					else
					{
						mypVideoMemory=NULL;
					}
////////////////////////////////////////////////////////////////////////////////
				//mypVideoMemory=NULL;
			}
		}
		else
		{
			mypVideoMemory=NULL;
		}
	}
	blocked=false;
}