XGetExtensionVersion(3)

NAME
XGetExtensionVersion - query the version of the input extension.

SYNTAX

XExtensionVersion *XGetExtensionVersion(Display *display, char *name);

ARGUMENTS

display
    Specifies the connection to the X server.

name
    Specifies the extension to be queried. The input extension name is defined in the header file XI.h.

DESCRIPTION
The XGetExtensionVersion request queries the version of the input extension, and returns an XExtensionVersion structure. This structure contains a major_version and minor_version number which can be compared with constants defined in XI.h. Support for additional protocol requests added to the input extension after its initial release is indicated by a version number corresponding to the added requests. Each version contains all the protocol requests contained by previous versions.

You should use XFree to free the XExtensionVersion structure.

STRUCTURES
This request returns an XExtensionVersion structure. typedef struct {
        int       present;
        short    major_version;
        short    minor_version;
} XExtensionVersion;

DIAGNOSTICS
none

SEE ALSO
Programming With Xlib