ok, lets say i have this: ================================================================= ddsd.dwHeight = 10; ddsd.dwWidth = 10; if (lpdd->CreateSurface(&ddsd,&lpddsiface[1],NULL)!=DD_OK) { dd_kill(); return(0); } ddsd.dwHeight = 50; ddsd.dwWidth = 50; if (lpdd->CreateSurface(&ddsd,&lpddsiface[2],NULL)!=DD_OK) { dd_kill(); return(0); } ================================================================= now, because bolth images that i am initing here are of differant sizes...i have to declair "ddsd.whatever = whatever". but, how would i GET the size of the bitmap (height and width) so that i dont have to specificly declair the sizes anymore? Edited by - gameprogrammerwiz on 6/29/00 5:10:15 PM

for (index = 0; index < num_iface; index++)
{
GetObject(lpddsiface[index], sizeof(BITMAP), &bmp);
ddsd.dwHeight = bmp.bmWidth;
ddsd.dwWidth = bmp.bmHeight;

if (lpdd->CreateSurface(&ddsd, &lpddsiface[index], NULL)!=DD_OK)
{
dd_kill();
return(0);
}
}

hmmm...it crashed

Re-read balrin's post as you have your code wrong.

one thing Balrin forgot to say is the BitmapName if the name of the file on the system.

Here is the correct code:

HBITMAP bit;

for (index = 0; index < num_iface; index++)
{
bit=(HBITMAP) LoadImage(NULL,BitmapName,IMAGE_BITMAP,0,0,LR_DEFAULTSIZE/LR_LOADFROMFILE);
// get bitmap dimensions
BITMAP bitmap;
GetObject( bit, sizeof(BITMAP), &bitmap );
ddsd.dwHeight = bmp.bmWidth;
ddsd.dwWidth = bmp.bmHeight;

if (lpdd->CreateSurface(&ddsd, &lpddsiface[index], NULL)!=DD_OK)
{
dd_kill();
return(0);
}
// Clean up so no memory leeks
DeleteObject( bit );
}

Edited by - Steven on June 29, 2000 7:06:03 PM

ok, i understand what you guys where trying to say now.

but now i have another problem...with the loops:

=================================================================

int game_init(void)
{
int index;

HBITMAP hbm;
BITMAP bmp;
HRESULT rst;

for (index = 0; index < num_iface; index++)
{
hbm = (HBITMAP) LoadImage(NULL, lpddsiface[index], IMAGE_BITMAP, 0, 0, LR_DEFAULTSIZE/LR_LOADFROMFILE);
rst = DDCopyBitmap(lpddsiface[index], hbm, 0, 0, 0, 0);

GetObject(hbm, sizeof(BITMAP), &bmp);
ddsd.dwHeight = bmp.bmWidth;
ddsd.dwWidth = bmp.bmHeight;

if (lpdd->CreateSurface(&ddsd, &lpddsiface[index], NULL) != DD_OK)
{
dd_kill();
return(0);
}

DeleteObject(hbm);
}
}

=================================================================

here is there error that has to do with the loop and the LoadImage function:

=================================================================

C:\Windows\Desktop\project\game.cpp(11) : error C2664: 'LoadImageA' : cannot convert parameter 2 from 'struct IDirectDrawSurface *' to 'const char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

=================================================================

any ideas?

Edited by - gameprogrammerwiz on June 29, 2000 7:59:07 PM

OH! C''mon!
Your Code:
hbm = (HBITMAP) LoadImage(NULL, lpddsiface[index], IMAGE_BITMAP, 0, 0, LR_DEFAULTSIZE/LR_LOADFROMFILE);

is wrong.


LoadImage does not take a surface parameter.
The second parameter is the filename or resource name.

Correct code is:

hbm = LoadImage(NULL, filename, IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION / LR_LOADFROMFILE);


OK! here is the complete code
BOOL load_bmp(LPDIRECTDRAW7 pDD, LPDIRECTDRAWSURFACE7 g_pSurface, char *filename)
{
HBITMAP hbm = 0;
BITMAP bminfo;
DDSURFACEDESC2 ddsd;
HDC hdc, bitmapdc;
if(g_pSurface != NULL) return FALSE;
hbm = (HBITMAP)LoadImage(NULL, filename, IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION/LR_LOADFROMFILE);
if (!hbm)
return FALSE;
if (!GetObject(hbm, sizeof(bminfo), &bminfo))
{
if (hbm)
DeleteObject(hbm);
return FALSE;
}

ZeroMemory(&ddsd, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS / DDSD_HEIGHT / DDSD_WIDTH;
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
ddsd.dwWidth = bminfo.bmWidth;
ddsd.dwHeight = bminfo.bmHeight;
if (pDD->CreateSurface(&ddsd, &g_pSurface, NULL) != DD_OK)
{
if (hbm)
DeleteObject(hbm);
return FALSE;
}

g_pSurface->Restore();
bitmapdc = CreateCompatibleDC(NULL);
SelectObject(bitmapdc, hbm);

ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_HEIGHT / DDSD_WIDTH;
g_pSurface->GetSurfaceDesc(&ddsd);
g_width = ddsd.dwWidth;
g_height = ddsd.dwHeight;

if (g_pSurface->GetDC(&hdc) == DD_OK)
{
StretchBlt(hdc, 0, 0, ddsd.dwWidth, ddsd.dwHeight, bitmapdc, 0, 0,
g_width, g_height, SRCCOPY);
g_pSurface->ReleaseDC(hdc);
}
DeleteDC(bitmapdc);
DeleteObject(hbm);
return TRUE;
}


By P.P.A. Narayanan (digicrush_ii@rediff.com)

aanand: OH C''MON! thats the exact same code as everyone else has been saying. you just threw in a bunch of code that i already have written in my other files.