int LoadBackgd()
{
RECT fill_area;
RECT source_rect;
DDBLTFX ddbltfx;

//DD_Create_Surface(SCREEN_WIDTH, SCREEN_HEIGHT, DDSCAPS_SYSTEMMEMORY); 


Load_Bitmap_File(&bitmap8bit, "glassbg.bmp");

// set the palette to background image palette

Set_Palette(bitmap8bit.palette);

/*
Create_Bitmap(&background_bmp, 0, 0, 640, 480);

Load_Image_Bitmap(&background_bmp,&bitmap8bit,0,0,BITMAP_EXTRACT_MODE_ABS);
*/

memset(&ddsd,0,sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);

DD_Lock_Back_Surface();

memcpy(back_buffer, bitmap8bit.buffer, SCREEN_WIDTH*SCREEN_HEIGHT);

DD_Unlock_Back_Surface();

/*
Draw_Bitmap(&background_bmp, back_buffer, back_lpitch, 1);
*/

source_rect.top  = 0;
source_rect.left = 0;
source_rect.bottom = SCREEN_HEIGHT;
source_rect.right  = SCREEN_WIDTH;

// fill in the destination rectangle data (your data)

fill_area.top    = 0;
fill_area.left   = 0;
fill_area.bottom = SCREEN_HEIGHT;
fill_area.right  = SCREEN_WIDTH;

// set color key to color 0

DDCOLORKEY color_key; // used to set color key

color_key.dwColorSpaceLowValue  = 0;
color_key.dwColorSpaceHighValue = 0;

// now set the color key for source blitting

lpDDSBack->SetColorKey(DDCKEY_SRCBLT, &color_key);

// ready to blt to surface, in this case blt to primary

lpDDSPrimary->Blt(&fill_area, // ptr to dest rectangle

                  lpDDSBack,  // ptr to source surface, NA            

                  &source_rect,       // ptr to source rectangle, NA

                  DDBLT_KEYSRC | DDBLT_WAIT,   // fill and wait                   

                  &ddbltfx);  // ptr to DDBLTFX structure



Unload_Bitmap_File(&bitmap8bit);

return(1);
}