XdbeQueryExtension(3X11) X FUNCTIONS XdbeQueryExtension(3X11)
NAME
XdbeQueryExtension - 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 func-
tion 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 unde-
fined.
SEE ALSO
DBE, XdbeAllocateBackBufferName(), XdbeBeginIdiom(),
XdbeDeallocateBackBufferName(), XdbeEndIdiom(), XdbeFreeV-
isualInfo(), XdbeGetBackBufferAttributes(), XdbeGet-
VisualInfo(), XdbeSwapBuffers().
XFree86 Version 4.5.0 1