Screen has x,y coordinate?

SDL Development
1

hi
In SDL,there are functions to get a screen. I have a problem,when i display
vedio, how to specify the x,y coordinate of the screen?

X.C.

–http://www.eyou.com
–??? ??? ??? ??? ???..???

2

xc wrote:

hi
In SDL,there are functions to get a screen. I have a problem, when i display
video, how to specify the x,y coordinate of the screen?

set the width and height of the screen using SDL_SetVideoMode.
after that all coordinates used by other functions are
relative to the top left of the created screen/window.

read the docs at sdldoc.sf.net for more information–
-==-
Jon Atkins
http://jcatki.2y.net/

3

If you want to blit a surface on a particular x,y position, use SDL_Rect in
your SDL_Blit Function.
Refers to examples in the SDL source tarball.

Jos.> ----- Original Message -----

From: sdlmail@eyou.com (xc)
Newsgroups: loki.open-source.sdl
To:
Sent: Wednesday, April 03, 2002 9:42 AM
Subject: [SDL] screen has x,y coordinate ?

hi
In SDL,there are functions to get a screen. I have a problem,when i
display
vedio, how to specify the x,y coordinate of the screen?

X.C.

–http://www.eyou.com
–??? ??? ??? ???
???..???

4

I think I read it wrong… sorry :slight_smile:

5

hi
In SDL,there are functions to get a screen. I have a problem,when i display
vedio, how to specify the x,y coordinate of the screen?

X.C.

SDL_Rect src, dest;

// where is the image in test

src.x = 32;

src.y = 32;

// how big is the image

dest.w = src.w = 32;

dest.w = src.h = 32;

// where do you want it

dest.y= 32;

dest.x = 32;

// draw the tile to the screen

SDL_BlitSuface(test, &src, screen, &dest);

----- Original Message -----
Subject: [SDL] screen has x,y coordinate ?