SDL_PollEvent(3) SDL API Reference SDL_PollEvent(3)NAME
SDL_PollEvent- Polls for currently pending events.
SYNOPSIS
#include "SDL.h"
int SDL_PollEvent(SDL_Event *event);
DESCRIPTION
Polls for currently pending events, and returns 1 if there are any pending events, or 0 if there are none available.
If event is not NULL, the next event is removed from the queue and stored in that area.
EXAMPLES
SDL_Event event; /* Event structure */
.
.
.
/* Check for events */
while(SDL_PollEvent(&event)){ /* Loop until there are no events left on the queue */
switch(event.type){ /* Process the appropiate event type */
case SDL_KEYDOWN: /* Handle a KEYDOWN event */
printf("Oh! Key press
");
break;
case SDL_MOUSEMOTION:
.
.
.
default: /* Report an unhandled event */
printf("I don't know what this event is!
");
}
}
SEE ALSO
SDL_Event, SDL_WaitEvent, SDL_PeepEvents
SDL Tue 11 Sep 2001, 22:59 SDL_PollEvent(3)
Check Out this Related Man Page
SDL_SetEventFilter(3) SDL API Reference SDL_SetEventFilter(3)NAME
SDL_SetEventFilter - Sets up a filter to process all events before they are posted to the event queue.
SYNOPSIS
#include "SDL.h"
void SDL_SetEventFilter(SDL_EventFilter filter);
DESCRIPTION
This function sets up a filter to process all events before they are posted to the event queue. This is a very powerful and flexible fea-
ture. The filter is prototyped as:
typedef int (*SDL_EventFilter)(const SDL_Event *event);
If the filter returns 1, then the event will be added to the internal queue. If it returns 0, then the event will be dropped from the
queue. This allows selective filtering of dynamically.
There is one caveat when dealing with the SDL_QUITEVENT event type. The event filter is only called when the window manager desires to
close the application window. If the event filter returns 1, then the window will be closed, otherwise the window will remain open if pos-
sible. If the quit event is generated by an interrupt signal, it will bypass the internal queue and be delivered to the application at the
next event poll.
Note:
Events pushed onto the queue with SDL_PushEvent or SDL_PeepEvents do not get passed through the event filter.
Note:
Be Careful! The event filter function may run in a different thread so be careful what you do within it.
SEE ALSO
SDL_Event, SDL_GetEventFilter, SDL_PushEvent
SDL Tue 11 Sep 2001, 22:59 SDL_SetEventFilter(3)
I need to use bash to convert sentences where all words start with a small letter into one where all words start with a capital letter.
So that a string like:
are utilities ready for hurricane sandy
becomes:
Are Utilities Ready For Hurricane Sandy (10 Replies)
Hi
I am new to this forum.
Any please help me to capture ctrl x and ctrl y via a bash script.
and please tell me how to clear the prompt via bash script
BR
Ramukumar M (4 Replies)
I have an Oracle Linux 7.1 vsphere host built. It's be preconfigured with our security configurations.
What I would like to do is unconfigure this host. Then set the host to do firstboot --reconfigure.
how do I do that using /etc/sysconfig/firstboot?
I've tried setting
... (10 Replies)
i know from the command line, the symbol $_ is used to get the last command that was run.
however, id like to replicate this within a script.
meaning, how do i do something like this:
#!/bin/sh
ps -ef | egrep talling
StoreThisLastCommandA=$_
awk '/error/ {print $3}' /tmp/test... (5 Replies)
hi folks,
how to using tar with exclude directory and compress it using tar.Z
i only know how to exclude dir only with this command below:
tar -cvf /varios/restore/test.tar -X excludefile.txt /jfma/test1/
how to compress it using 1 command?
Thanx
Please use CODE tags as... (6 Replies)
Quite an obscure question I think.
We have a rebuild process for remote sites that allows us to PXE rebuild a till (actually a PC with a touch screen and various fancy bits) running CentOS. The current CentOS5 tills work just fine with a tar image restore and some personalisation. Sadly,... (4 Replies)
Hello All,
I had recently learnt a bit of Docker(which provides containerization process).
Here are some of my learning points from it.
Let us start first with very basic question:
What is Docker:
Docker is a platform for sysadmins and developers to DEPLOY, DEVELOP and RUN applications ... (7 Replies)
Hi Folks,
I feel that I should be posting this in the Unix for Dummies Forum and will probably wish I'd created an account and done just that - but here goes anyway.
I have two identical servers both Dell R430's both running RedHat Enterprise Server 7.4 and the same kernel, both have the same... (16 Replies)
Hi,
What is installation package and how to create it?
When we run:
in AIX:
installp package1
or
in Linux
rpm -ivh mypackage
What is package1 or mypackage in the abov examples and how to create them and deploy them?
I hope my question is clear enough.
Thank you (2 Replies)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)
After the success of the jq - tool for parsing and manipulating JSON-Data someone wrote a tool called yq, which aims to be the same for YAML, what jq is for JSON. Seems to work fine. I'll definitely give it a chance in future.
Example YAML-File:
--- !ruby/object:Puppet::Node::Facts
... (1 Reply)