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XTEST(3)			    libXtst			      XTEST(3)

NAME
       XTestQueryExtension, XTestCompareCursorWithWindow,
       XTestCompareCurrentCursorWithWindow, XTestFakeKeyEvent,
       XTestFakeButtonEvent, XTestFakeMotionEvent,
       XTestFakeRelativeMotionEvent, XTestGrabControl, XTestSetGContextOfGC,
       XTestSetVisualIDOfVisual, XTestDiscard - XTest extension functions

SYNOPSIS
	cc [ flag ... ] file ... -lXtst	 [ library ... ]

	#include <X11/extensions/XTest.h>

       Bool XTestQueryExtension(display, event_base_return, error_base_return,
				major_version_return, minor_version_return);

	Display *display;
	int *event_base_return;
	int *error_base_return;
	int *major_version_return;
	int *minor_version_return;

       Bool XTestCompareCursorWithWindow(display, window, cursor);

	Display *display;
	Window window;
	Cursor cursor;

       Bool XTestCompareCurrentCursorWithWindow(display, window);

	Display *display;
	Window window;

       int XTestFakeKeyEvent(display, keycode, is_press, delay);

	Display *display;
	unsigned int keycode;
	Bool is_press;
	unsigned long delay;

       int XTestFakeButtonEvent(display, button, is_press, delay);

	Display *display;
	unsigned int button;
	Bool is_press;
	unsigned long delay;

       int XTestFakeMotionEvent(display, screen_number, x, y, delay);

	Display *display;
	int screen_number;
	int x, y;
	unsigned long delay;

       int XTestFakeRelativeMotionEvent(display, screen_number, x, y, delay);

	Display *display;
	int screen_number;
	int x, y;
	unsigned long delay;

       int XTestGrabControl(display, impervious);

	Display *display;
	Bool impervious;

       void XTestSetGContextOfGC(gc, gid);

	GC gc;
	GContext gid;

       void XTestSetVisualIDOfVisual(visual, visualid);

	Visual *visual;
	VisualID visualid;

       Status XTestDiscard(display);

	Display *display;

DESCRIPTION
       This extension is a minimal set of client and server extensions
       required to completely test the X11 server with no user intervention.
       This extension is not intended to support general journaling and
       playback of user actions.

       The functions provided by this extension fall into two groups:

       Client Operations
	      These routines manipulate otherwise hidden client-side behavior.
	      The actual implementation will depend on the details of the
	      actual language binding and what degree of request buffering,
	      GContext caching, and so on, is provided. In the C binding,
	      routines are provided to access the internals of two opaque data
	      structures — GCs and Visuals — and to discard any requests
	      pending within the output buffer of a connection. The exact
	      details can be expected to differ for other language bindings.

       Server Requests
	      The first of these requests is similar to that provided in most
	      extensions: it allows a client to specify a major and minor
	      version number to the server and for the server to respond with
	      major and minor versions of its own. The remaining two requests
	      allow the following:

	      ·	 Access to an otherwise write-only server resource: the cursor
		 associated with a given window

	      ·	 Perhaps most importantly, limited synthesis of input device
		 events, almost as if a cooperative user had moved the
		 pointing device or pressed a key or button.

       All XTEST extension functions and procedures, and all manifest
       constants and macros, will start with the string XTest. All operations
       are classified as server/client (Server) or client-only (Client).

       XTestQueryExtension returns True if the specified display supports the
       XTEST extension, else False. If the extension is supported, *event_base
       would be set to the event number for the first event for this extension
       and *error_base would be set to the error number for the first error
       for this extension. As no errors or events are defined for this version
       of the extension, the values returned here are not defined (nor
       useful). If the extension is supported, *major_version and
       *minor_version are set to the major and minor version numbers of the
       extension supported by the display. Otherwise, none of the arguments
       are set.

       If the extension is supported, XTestCompareCursorWithWindow performs a
       comparison of the cursor whose ID is specified by cursor (which may be
       None) with the cursor of the window specified by window returning True
       if they are the same and False otherwise. If the extension is not
       supported, then the request is ignored and zero is returned.

       If the extension is supported, XTestCompareCurrentCursorWithWindow
       performs a comparison of the current cursor with the cursor of the
       specified window returning True if they are the same and False
       otherwise. If the extension is not supported, then the request is
       ignored and zero is returned.

       If the extension is supported, XTestFakeKeyEvent requests the server to
       simulate either a KeyPress (if is_press is True) or a KeyRelease (if
       is_press is False) of the key with the specified keycode; otherwise,
       the request is ignored.

       If the extension is supported, the simulated event will not be
       processed until delay milliseconds after the request is received (if
       delay is CurrentTime, then this is interpreted as no delay at all). No
       other requests from this client will be processed until this delay, if
       any, has expired and subsequent processing of the simulated event has
       been completed.

       If the extension is supported, XTestFakeButtonEvent requests the server
       to simulate either a ButtonPress (if is_press is True) or a
       ButtonRelease (if is_press is False) of the logical button numbered by
       the specified button; otherwise, the request is ignored.

       If the extension is supported, the simulated event will not be
       processed until delay milliseconds after the request is received (if
       delay is CurrentTime, then this is interpreted as no delay at all). No
       other requests from this client will be processed until this delay, if
       any, has expired and subsequent processing of the simulated event has
       been completed.

       If the extension is supported, XTestFakeMotionEvent requests the server
       to simulate a movement of the pointer to the specified position (x, y)
       on the root window of screen_number; otherwise, the request is ignored.
       If screen_number is -1, the current screen (that the pointer is on) is
       used.

       If the extension is supported, the simulated event will not be
       processed until delay milliseconds after the request is received (if
       delay is CurrentTime, then this is interpreted as no delay at all). No
       other requests from this client will be processed until this delay, if
       any, has expired and subsequent processing of the simulated event has
       been completed.

       If the extension is supported, XTestFakeRelativeMotionEvent requests
       the server to simulate a movement of the pointer by the specified
       offsets (x, y) relative to the current pointer position on
       screen_number; otherwise, the request is ignored. If screen_number is
       -1, the current screen (that the pointer is on) is used.

       If the extension is supported, the simulated event will not be
       processed until delay milliseconds after the request is received (if
       delay is CurrentTime, then this is interpreted as no delay at all). No
       other requests from this client will be processed until this delay, if
       any, has expired and subsequent processing of the simulated event has
       been completed.

       If impervious is True, then the executing client becomes impervious to
       server grabs. If impervious is False, then the executing client returns
       to the normal state of being susceptible to server grabs.

       XTestSetGContextOfGC sets the GContext within the opaque datatype
       referenced by gc to be that specified by gid.

       XTestSetVisualIDOfVisual sets the VisualID within the opaque datatype
       referenced by visual to be that specified by visualid.

       XTestDiscard discards any requests within the output buffer for the
       specified display. It returns True if any requests were discarded;
       otherwise, it returns False.

RETURN VALUES
       All routines that have return type Status will return nonzero for
       success and zero for failure. Even if the XTEST extension is supported,
       the server may withdraw such facilities arbitrarily; in which case they
       will subsequently return zero.

AUTHOR
       Kieron Drake.

				  6 June 2007			      XTEST(3)
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