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EZ_AddInput(3)                  EZWGL Functions                 EZ_AddInput(3)

NAME
       EZ_AddInput, EZ_RemoveInput - register/remove input handlers

SYNOPSIS
       #include <EZ.h>

       EZ_Input *EZ_AddInput(int fd, int mask,
                     EZ_InputCallBack callback, void *data)

       void EZ_RemoveInput(EZ_Input *input)

ARGUMENTS
       fd  Specifies a file descriptor.

       mask Specifies the mask that indicates a read, write, or exception
       condition. It must be ORed from EZ_READABLE_MASK, EZ_WRITABLE_MASK and
       EZ_EXCEPTION_MASK.

       callback  Specify the procedure to be invoked when input is ready.

       data  Specifies the argument that is to be passed to callback  when
       invoked.

       input  Specifies a EZ_Input handler.

DESCRIPTION
       EZ_AddInput registers an input handler to the EZWGL library.

       EZ_RemoveInput removes a previousely registered input handler.

       EZ_InputCallBack is a procedure of type
         void (*inputCallback)(void *object, void *data, int fd, int mask);

       Here is a simple input handler that reads from the standard input and
       insert the input in a text widget.

       static void readStdin(EZ_Input *id, void *data, int fd, int mask)
       {
         EZ_Widget *tw = (EZ_Widget *)data;
         char buf[1024];
         int n;
         if(mask & EZ_READABLE_MASK)
           {
             n = read(fd, buf, 1023);
             if(n > 0)
            {
              buf[n] = 0;
              EZ_TextEndOfBuffer(tw);
              EZ_TextInsertString(tw,buf);
            }
           }
       }

SEE ALSO
       EZ_EventMainLoop(3), EZ_ServiceEvents(3)

EZWGL                                                           EZ_AddInput(3)