DMXQueryVersion - determine DMX extension version
Bool DMXQueryVersion(Display *dpy,
DMXQueryVersion() returns version information about the DMX protocol extension.
Any incompatible changes to the protocol will be indicated by a change in major_version.
Small, upward-compatible changes will be indicated by a change in minor_version. In gen-
eral, patch_version is for informational purposes and will encode the date of the last
protocol revision (e.g., 20040604).
If the DMX protocol extension is available, major_version, minor_version, and patch_ver-
sion will be set, and True will be returned. Otherwise, False will be returned.
At the time of this writing, the DMX protocol is at version 2.2.
Version 2.2 was the final development version, and code supporting this version was sub-
mitted to upstream X server repositories in the summer of 2004.
Version 1.5 was the last of the 1.x series, which was used for development before screen
and input addition and removal were supported. Version 2.0 and 2.1 were development ver-
sions that partially supported screen and input addition and removal.
Since we do not expect development versions to be widely used, we recommend that any soft-
ware that uses the DMX protocol extension to support only versions 2.2 and above (although
they should detect earlier versions and either reduce functionality or fail gracefully).
DMXQueryExtension(3), DMX(3), Xdmx(1)
X Version 11 libdmx 1.1.3 DMXQueryVersion(3)