sdl_setcliprect(3) [debian man page]

SDL_SetClipRect(3)						 SDL API Reference						SDL_SetClipRect(3)

NAME

       SDL_SetClipRect - Sets the clipping rectangle for a surface.

SYNOPSIS

       #include "SDL.h"

       void SDL_SetClipRect(SDL_Surface *surface, SDL_Rect *rect);

DESCRIPTION

       Sets  the clipping rectangle for a surface. When this surface is the destination of a blit, only the area within the clip rectangle will be
       drawn into.

       The rectangle pointed to by rect will be clipped to the edges of the surface so that the clip rectangle for a surface can never	fall  out-
       side the edges of the surface.

       If rect is NULL the clipping rectangle will be set to the full size of the surface.

SEE ALSO

       SDL_GetClipRect, SDL_BlitSurface, SDL_Surface

SDL
							      Tue 11 Sep 2001, 23:01						SDL_SetClipRect(3)

SDL_Surface(3)							 SDL API Reference						    SDL_Surface(3)

NAME

       SDL_Surface- Graphical Surface Structure

STRUCTURE DEFINITION

       typedef struct SDL_Surface {
	       Uint32 flags;			       /* Read-only */
	       SDL_PixelFormat *format; 	       /* Read-only */
	       int w, h;			       /* Read-only */
	       Uint16 pitch;			       /* Read-only */
	       void *pixels;			       /* Read-write */

	       /* clipping information */
	       SDL_Rect clip_rect;		       /* Read-only */

	       /* Reference count -- used when freeing surface */
	       int refcount;			       /* Read-mostly */

	    /* This structure also contains private fields not shown here */
       } SDL_Surface;

STRUCTURE DATA

       flags		   Surface flags

       format		   Pixel format

       w, h		   Width and height of the surface

       pitch		   Length of a surface scanline in bytes

       pixels		   Pointer to the actual pixel data

       clip_rect	   surface clip rectangle

DESCRIPTION

       SDL_Surface's  represent  areas	of  "graphical" memory, memory that can be drawn to. The video framebuffer is returned as a SDL_Surface by
       SDL_SetVideoMode and SDL_GetVideoSurface. Most of the fields should be pretty obvious. w and h are the width and height of the  surface	in
       pixels.	pixels is a pointer to the actual pixel data, the surface should be locked before accessing this field. The clip_rect field is the
       clipping rectangle as set by SDL_SetClipRect.

       The following are supported in the flags field.

       SDL_SWSURFACE	   Surface is stored in system memory

       SDL_HWSURFACE	   Surface is stored in video memory

       SDL_ASYNCBLIT	   Surface uses asynchronous blits if possible

       SDL_ANYFORMAT	   Allows any pixel-format (Display surface)

       SDL_HWPALETTE	   Surface has exclusive palette

       SDL_DOUBLEBUF	   Surface is double buffered (Display surface)

       SDL_FULLSCREEN	   Surface is full screen (Display Surface)

       SDL_OPENGL	   Surface has an OpenGL context (Display Surface)

       SDL_OPENGLBLIT	   Surface supports OpenGL blitting (Display Surface)

       SDL_RESIZABLE	   Surface is resizable (Display Surface)

       SDL_HWACCEL	   Surface blit uses hardware acceleration

       SDL_SRCCOLORKEY	   Surface use colorkey blitting

       SDL_RLEACCEL	   Colorkey blitting is accelerated with RLE

       SDL_SRCALPHA	   Surface blit uses alpha blending

       SDL_PREALLOC	   Surface uses preallocated memory

SEE ALSO

       SDL_PixelFormat

SDL
							      Tue 11 Sep 2001, 23:01						    SDL_Surface(3)