diff options
Diffstat (limited to 'nx-X11/lib/X11/PeekEvent.c')
-rw-r--r-- | nx-X11/lib/X11/PeekEvent.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/nx-X11/lib/X11/PeekEvent.c b/nx-X11/lib/X11/PeekEvent.c new file mode 100644 index 000000000..ffbaa05b4 --- /dev/null +++ b/nx-X11/lib/X11/PeekEvent.c @@ -0,0 +1,61 @@ +/* + +Copyright 1986, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + +*/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" + +/* + * Return the next event in the queue, + * BUT do not remove it from the queue. + * If none found, flush and wait until there is an event to peek. + */ + +int +XPeekEvent ( + register Display *dpy, + register XEvent *event) +{ + XEvent copy; + LockDisplay(dpy); + if (dpy->head == NULL) + _XReadEvents(dpy); +#ifdef NX_TRANS_SOCKET + if (_XGetIOError(dpy)) { + UnlockDisplay(dpy); + return 1; + } +#endif + *event = (dpy->head)->event; + if (_XCopyEventCookie(dpy, &event->xcookie, ©.xcookie)) { + _XStoreEventCookie(dpy, ©); + *event = copy; + } + UnlockDisplay(dpy); + return 1; +} + |