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Full Discussion: pipe help
Top Forums Programming pipe help Post 16174 by bb666 on Tuesday 26th of February 2002 02:46:42 PM
Old 02-26-2002
i was able to make a father and his son communicate through a pipe but the real problem is: in my example i have no control over when a process is created so i have no control over who is reading and/or writing to a pipe at a certain moment in time.
And i need to have some sort of control of that so i can send data from one process to it's sons and viceversa. How can i achieve that? I believe the most simple method would be using signals to tell the parent when a child is created so that the parent can start writing in the pipe and the child can read from it, but i'm totally lost here. Smilie
 

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SDL_JoystickOpen(3)						 SDL API Reference					       SDL_JoystickOpen(3)

NAME
SDL_JoystickOpen - Opens a joystick for use. SYNOPSIS
#include "SDL.h" SDL_Joystick *SDL_JoystickOpen(int index); DESCRIPTION
Opens a joystick for use within SDL. The index refers to the N'th joystick in the system. A joystick must be opened before it game be used. RETURN VALUE
Returns a SDL_Joystick structure on success. NULL on failure. EXAMPLES
SDL_Joystick *joy; // Check for joystick if(SDL_NumJoysticks()>0){ // Open joystick joy=SDL_JoystickOpen(0); if(joy) { printf("Opened Joystick 0 "); printf("Name: %s ", SDL_JoystickName(0)); printf("Number of Axes: %d ", SDL_JoystickNumAxes(joy)); printf("Number of Buttons: %d ", SDL_JoystickNumButtons(joy)); printf("Number of Balls: %d ", SDL_JoystickNumBalls(joy)); } else printf("Couldn't open Joystick 0 "); // Close if opened if(SDL_JoystickOpened(0)) SDL_JoystickClose(joy); } SEE ALSO
SDL_JoystickClose SDL
Tue 11 Sep 2001, 23:00 SDL_JoystickOpen(3)
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