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tenchimusakiryoko

Blt Help

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I am trying to use color keying with my game, and my current bitmap function uses bit blt and i need to use Blt. But i cant get it to work at all,here is what i have so far. int DisplayBitmap(LPDIRECTDRAWSURFACE lpdds,int x1,int y1,int x,int y,LPSTR szImage) { HBITMAP hbm; BOOL bReturn=FALSE; DDSURFACEDESC ddsd; RECT gh; gh.top=x1; gh.bottom=y1; gh.left=x; gh.right=y; ZeroMemory(&ddsd,sizeof(ddsd)); ddsd.dwSize=sizeof(ddsd); ddsd.dwFlags=DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT; ddsd.dwWidth =800; ddsd.dwHeight=600; ddsd.ddsCaps.dwCaps=DDSCAPS_OFFSCREENPLAIN | DDSCAPS_VIDEOMEMORY; lpdd->CreateSurface(&ddsd,&lpddsbitmaps,NULL); lpddsbitmaps=DDLoadBitmap(lpdd,szImage,0,0); lpdds->Blt(&gh,lpddsbitmaps,NULL,DDBLT_WAIT | DDBLT_KEYSRC,NULL); }

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//Displays a bitmap at any given coordinates
int DisplayBitmap(LPDIRECTDRAWSURFACE lpdds,int x1,int y1,int x,int y,LPSTR szImage)
{

HBITMAP hbm;
BOOL bReturn=FALSE;
DDSURFACEDESC ddsd;
RECT dh;
RECT gh;
SetRect(&gh,x,x1,y,y1);
SetRect(&dh,0,100,0,100);
ZeroMemory(&ddsd,sizeof(ddsd));

lpddsbitmaps=DDLoadBitmap(lpdd,szImage,0,0);

color.dwColorSpaceLowValue = 0;
color.dwColorSpaceHighValue = 0;

lpddsbitmaps->SetColorKey( DDCKEY_SRCBLT, &color);
lpdds->BltFast(x1,y1,lpddsbitmaps,NULL,DDBLTFAST_WAIT | DDBLTFAST_SRCCOLORKEY);

bReturn=TRUE;


return bReturn;
}

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int DisplayBitmap(LPDIRECTDRAWSURFACE lpdds,int x1,int y1,int x,int y,LPSTR szImage)
{

HBITMAP hbm;
BOOL bReturn=FALSE;
DDSURFACEDESC ddsd;
RECT dh;
RECT gh;
SetRect(&gh,x1,x1+x,y1,y1+y);
SetRect(&dh,0,100,0,100);
ZeroMemory(&ddsd,sizeof(ddsd));
ddsd.dwSize=sizeof(ddsd);

lpddsbitmaps=DDLoadBitmap(lpdd,szImage,0,0);

color.dwColorSpaceLowValue = 0;
color.dwColorSpaceHighValue = 0;

lpddsbitmaps->SetColorKey( DDCKEY_SRCBLT, &color);
lpdds->Blt(&gh,lpddsbitmaps,NULL,DDBLT_WAIT | DDBLT_KEYSRC,NULL);
bReturn=TRUE;


return bReturn;
}

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