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sdl_fillrect(3) [centos man page]

SDL_FillRect(3) 						 SDL API Reference						   SDL_FillRect(3)

NAME
SDL_FillRect - This function performs a fast fill of the given rectangle with some color SYNOPSIS
#include "SDL.h" int SDL_FillRect(SDL_Surface *dst, SDL_Rect *dstrect, Uint32 color); DESCRIPTION
This function performs a fast fill of the given rectangle with color. If dstrect is NULL, the whole surface will be filled with color. The color should be a pixel of the format used by the surface, and can be generated by the SDL_MapRGB or SDL_MapRGBA functions. If the color value contains an alpha value then the destination is simply "filled" with that alpha information, no blending takes place. If there is a clip rectangle set on the destination (set via SDL_SetClipRect) then this function will clip based on the intersection of the clip rectangle and the dstrect rectangle and the dstrect rectangle will be modified to represent the area actually filled. RETURN VALUE
This function returns 0 on success, or -1 on error. SEE ALSO
SDL_MapRGB, SDL_MapRGBA, SDL_BlitSurface, SDL_Rect SDL
Tue 11 Sep 2001, 23:01 SDL_FillRect(3)

Check Out this Related Man Page

SDL_BlitSurface(3)						 SDL API Reference						SDL_BlitSurface(3)

NAME
SDL_BlitSurface- This performs a fast blit from the source surface to the destination surface. SYNOPSIS
#include "SDL.h" int SDL_BlitSurface(SDL_Surface *src, SDL_Rect *srcrect, SDL_Surface *dst, SDL_Rect *dstrect); DESCRIPTION
This performs a fast blit from the source surface to the destination surface. Only the position is used in the dstrect (the width and height are ignored). If either srcrect or dstrect are NULL, the entire surface (src or dst) is copied. The final blit rectangle is saved in dstrect after all clipping is performed (srcrect is not modified). The blit function should not be called on a locked surface. The results of blitting operations vary greatly depending on whether SDL_SRCAPLHA is set or not. See SDL_SetAlpha for an explaination of how this affects your results. Colorkeying and alpha attributes also interact with surface blitting, as the following pseudo-code should hopefully explain. if (source surface has SDL_SRCALPHA set) { if (source surface has alpha channel (that is, format->Amask != 0)) blit using per-pixel alpha, ignoring any colour key else { if (source surface has SDL_SRCCOLORKEY set) blit using the colour key AND the per-surface alpha value else blit using the per-surface alpha value } } else { if (source surface has SDL_SRCCOLORKEY set) blit using the colour key else ordinary opaque rectangular blit } RETURN VALUE
If the blit is successful, it returns 0, otherwise it returns -1. If either of the surfaces were in video memory, and the blit returns -2, the video memory was lost, so it should be reloaded with artwork and re-blitted: while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) { while ( SDL_LockSurface(image)) < 0 ) Sleep(10); -- Write image pixels to image->pixels -- SDL_UnlockSurface(image); } This happens under DirectX 5.0 when the system switches away from your fullscreen application. Locking the surface will also fail until you have access to the video memory again. SEE ALSO
SDL_LockSurface, SDL_FillRect, SDL_Surface, SDL_Rect SDL
Tue 11 Sep 2001, 23:01 SDL_BlitSurface(3)
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