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NAME

Xinerama - API for Xinerama extension to X11 Protocol
 

SYNOPSIS

Bool XineramaQueryExtension (Display *dpy, 
        int *event_basep, int *error_basep);

Status XineramaQueryVersion (Display *dpy,
        int *major_versionp,
        int *minor_versionp);

Bool XineramaIsActive (Display *dpy);

XineramaScreenInfo * XineramaQueryScreens (Display *dpy, 
        int *number);

ARGUMENTS

display

Specifies the connection to the X server.

event_basep

Specifies the return location for the assigned base event code

error_basep

Specifies the return location for the assigned base error code

major_versionp

Returns the major version supported by the server

minor_versionp

Returns the minor version supported by the server

number

Returns the number of entries in the returned XineramaScreenInfo array.

DESCRIPTION

FUNCTIONS

XineramaQueryExtension()

The XineramaQueryExtension function queries the Xserver to determine the availability of the Xinerama Extension. If the extension is available, the return value is True, and event_base and error_base are set to the base event number and base error number for the extension, respectively. Otherwise, the return value is False, and the values of event_base and error_base are undefined.

XineramaQueryVersion()

The XineramaQueryVersion function returns the version of the Xinerama extension implemented by the Xserver. The version is returned in major_versionp and minor_versionp. The major version will be incremented for protocol incompatible changes, and the minor version will be incremented for small, upwardly compatible changes.

If the Xinerama library is compatible with the version returned by the server, it returns nonzero. If the server does not support the XINERAMA extension, or if there was an error during communications with the server, or if the server and library protocol versions are incompatible, it returns zero.

XineramaIsActive()

The XineramaActive function returns a Boolean operator used to determine if Xinerama is activated on the screen. Returns True for active and False for not active.

XineramaQueryScreens()

The XineramaQueryScreens() function returns info about each individual output device within the Xinerama Screen. The integer pointed to by the number argument is updated to the number of output devices listed in the returned array of XineramaScreenInfo structures. XineramaQueryScreens() returns NULL and sets number to 0 if Xinerama is not active.

The pointer returned should be released with XFree(3) when no longer needed.

NOTE

Index

NAME

SYNOPSIS

ARGUMENTS

DESCRIPTION

FUNCTIONS

XineramaQueryExtension()

XineramaQueryVersion()

XineramaIsActive()

XineramaQueryScreens()

NOTE

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