primsurf->BltFast(pos_x, pos_y, bitmap, NULL, DDBLTFAST_NOCOLORKEY | DDBLTFAST_WAIT);

that worked before!

If not, do this one of the following
ZeroMemory(&bigdesc, sizeof(bigdesc));

or memset(&bigdesc, 0, sizeof(bigdesc));

Hope this helps. If not, please give us the error code in order to help us help you.

hhow do I get the error code?

Is there a way to blit images partially off the screen without using clippers?

I've heard other folks mention that with DX7, there is a function called D3DGetErrorCode or something like that, that you can use to do pretty much what I just described. I'm not sure though, i wrote my own class back when DX3 came out so I've always stuck with that.

As for bliting without clipping, I wouldn't recommend it. It'll crash on most computers (although I have seen it run on one or two). If you don't want to use DirectDrawClipper, you can just write your own. It's not to hard, and you should be able to find lots of tutorials on how to do it on the net.

Hope this helped, if not let me know, and I'll try to be more specific.

for blitting images that are partially offscreen, couldn't ZomeonE use the 'Blt' function instead of using BltFast and DirectDrawClipper? I'm still wet behind the ears for DX programming so I don't really know what works best, but it might give him the functionality he's after.

As for the DirectDraw error class. Here's an excerpt from mine:

void TranslateError(HRESULT hError, char *szMesg)
{
switch(hError)
{
case DD_OK:
strcpy(szMesg, "No problem!");
break;
case DDERR_ALREADYINITIALIZED:
strcpy(szMesg, "The object has already been initialized.");
break;
case DDERR_BLTFASTCANTCLIP:
strcpy(szMesg, "A DirectDrawClipper object is attached to a source surface that has passed into a call to the IDirectDrawSurface3::BltFast method.");
break;
case DDERR_CANNOTATTACHSURFACE:
strcpy(szMesg, "A surface cannot be attached to another requested surface.");
break;
....
..
.
}

** An important assumption for this to work; szMesg is large enough to hold the message. You should put some error checking in here.

Anyways, the error messages were more or less just copied and pasted from the DX help files and formated. All, in all, it took me about an hour or two to complete the class and it's proved it's usefulness many times over.

Hopefully this helped ya out, otherwise, let me know...

bigdesc.dwSize = sizeof(bigdesc);
bigdesc.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
bigdesc.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
bigdesc.dwWidth = SCREEN_WIDTH + (TILE_WIDTH * 2);
bigdesc.dwHeight = SCREEN_HEIGHT + (TILE_HEIGHT * 2);
if(ddraw->CreateSurface(&bigdesc, &bigsurf, NULL) != DD_OK)
return(1);