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\&.
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 \(em
Visuals \(em 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\&.
.RE
.PP
\fBServer Requests\fR
.RS4
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:
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\&.
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\&.
\fBCurrentTime\fR, 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\&.
\fBCurrentTime\fR, 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\&.
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\&.
\fBCurrentTime\fR, 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\&.
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\&.
\fBCurrentTime\fR, 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\&.
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\&.
