DMXQueryVersion(3)DMXQueryVersion(3)NAMEDMXQueryVersion - determine DMX extension version
Bool DMXQueryVersion(Display *dpy,
DESCRIPTIONDMXQueryVersion() returns version information about the DMX protocol
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 general, patch_version is for infor‐
mational purposes and will encode the date of the last protocol revi‐
sion (e.g., 20040604).
If the DMX protocol extension is available, major_version, minor_ver‐
sion, and patch_version will be set, and True will be returned. Other‐
wise, 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 submitted to upstream X server repositories in the summer
Version 1.5 was the last of the 1.x series, which was used for develop‐
ment before screen and input addition and removal were supported. Ver‐
sion 2.0 and 2.1 were development versions that partially supported
screen and input addition and removal.
Since we do not expect development versions to be widely used, we rec‐
ommend that any software that uses the DMX protocol extension to sup‐
port only versions 2.2 and above (although they should detect earlier
versions and either reduce functionality or fail gracefully).
SEE ALSODMXQueryExtension(3), DMX(3), Xdmx(1)X Version 11 libdmx 1.0.2 DMXQueryVersion(3)