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 con‐
dition. 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.
DESCRIPTIONEZ_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 ALSOEZ_EventMainLoop(3), EZ_ServiceEvents(3)EZWGLEZ_AddInput(3)
