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/*---------------------------------------------------------------------------------
Name : scroll.c
Author : Marvin Raaijmakers
Description : Plugin for keyTouch that sends scroll events.
Date of last change: 17-Dec-2005
History : 17-Dec-2005 Created this plugin
Copyright (C) 2005 Marvin Raaijmakers
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
You can contact me at: marvinr(at)users(dot)sf(dot)net
(replace (at) by @ and (dot) by .)
-----------------------------------------------------------------------------------*/
#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/extensions/XTest.h>
#include <plugin.h>
void scroll_up (KTPreferences *preferences);
void scroll_down (KTPreferences *preferences);
void scroll_left (KTPreferences *preferences);
void scroll_right (KTPreferences *preferences);
KeytouchPlugin plugin_struct = {
{"Scroll", "Marvin Raaijmakers", "GPL 2", "1.0",
"Sends scroll events."},
"scroll.so",
4,
{{"Up", KTPluginFunctionType_Function, {.function = scroll_up}},
{"Down", KTPluginFunctionType_Function, {.function = scroll_down}},
{"Left", KTPluginFunctionType_Function, {.function = scroll_left}},
{"Right", KTPluginFunctionType_Function, {.function = scroll_right}}
}
};
static void
emulate_button (unsigned int button)
/*
Input:
button - The button event to send
Description:
This function sends a button press and release event to the the default X
display.
*/
{
Display *display;
int i;
/* Connect to the server specified in the DISPLAY evironment variable */
display = XOpenDisplay(NULL);
if (display == NULL)
{
fprintf (stderr, "Cannot connect to X server %s.\n", XDisplayName(NULL));
return;
}
if (!XQueryExtension (display, "XTEST", &i, &i, &i))
{
fprintf (stderr, "Extension XTest unavailable on display '%s'.\n", XDisplayName(NULL));
XCloseDisplay (display);
return;
}
/* Send the button press event */
XTestFakeButtonEvent (display, button, True, CurrentTime);
/* Send the button release event */
XTestFakeButtonEvent (display, button, False, CurrentTime);
XCloseDisplay (display);
}
void
scroll_up (KTPreferences *preferences)
{
emulate_button (4);
}
void
scroll_down (KTPreferences *preferences)
{
emulate_button (5);
}
void
scroll_left (KTPreferences *preferences)
{
emulate_button (6);
}
void
scroll_right (KTPreferences *preferences)
{
emulate_button (7);
}
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