XdbeQueryExtension(3X11) X FUNCTIONS XdbeQueryExtension(3X11)NAMEXdbeQueryExtension - returns the version of DBE supported
by the server.
SYNOPSIS
#include <X11/extensions/Xdbe.h>
Status XdbeQueryExtension(
Display *dpy,
int *major_version_return,
int *minor_version_return)
DESCRIPTION
Sets major_version_return and minor_version_return to the
major and minor DBE protocol version supported by the
server. If the DBE library is compatible with the version
returned by the server, this function returns non-zero.
If dpy does not support the DBE extension, or if there was
an error during communication with the server, or if the
server and library protocol versions are incompatible,
this function returns zero. No other Xdbe functions may
be called before this function. If a client violates this
rule, the effects of all subsequent Xdbe calls that it
makes are undefined.
SEE ALSO
DBE, XdbeAllocateBackBufferName(), XdbeBeginIdiom(), Xdbe-
DeallocateBackBufferName(), XdbeEndIdiom(), XdbeFreeVisu-
alInfo(), XdbeGetBackBufferAttributes(), XdbeGetVisual-
Info(), XdbeSwapBuffers().
X Version 11 Release 6.4 1