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authormarha <marha@users.sourceforge.net>2015-02-22 21:39:56 +0100
committermarha <marha@users.sourceforge.net>2015-02-22 21:39:56 +0100
commit462f18c7b25fe3e467f837647d07ab0a78aa8d2b (patch)
treefc8013c0a1bac05a1945846c1697e973f4c35013 /xorg-server/hw/xwin/winclipboard/xevents.c
parent36f711ee12b6dd5184198abed3aa551efb585587 (diff)
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Merged origin/release (checked in because wanted to merge new stuff)
Diffstat (limited to 'xorg-server/hw/xwin/winclipboard/xevents.c')
-rwxr-xr-xxorg-server/hw/xwin/winclipboard/xevents.c426
1 files changed, 283 insertions, 143 deletions
diff --git a/xorg-server/hw/xwin/winclipboard/xevents.c b/xorg-server/hw/xwin/winclipboard/xevents.c
index cfbf0121e..640efeb4e 100755
--- a/xorg-server/hw/xwin/winclipboard/xevents.c
+++ b/xorg-server/hw/xwin/winclipboard/xevents.c
@@ -36,10 +36,158 @@
#include "winclipboard.h"
#include "misc.h"
#include "winmsg.h"
-#include "internal.h"
+/*
+ * Including any server header might define the macro _XSERVER64 on 64 bit machines.
+ * That macro must _NOT_ be defined for Xlib client code, otherwise bad things happen.
+ * So let's undef that macro if necessary.
+ */
+#ifdef _XSERVER64
+#undef _XSERVER64
+#endif
+
+#include <limits.h>
#include <unistd.h>
+#include <wchar.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+//#include <X11/extensions/Xfixes.h>
+
+#include "winclipboard.h"
+#include "internal.h"
+
+/*
+ * Constants
+ */
+
+#define CLIP_NUM_SELECTIONS 2
+#define CLIP_OWN_NONE -1
+#define CLIP_OWN_PRIMARY 0
+#define CLIP_OWN_CLIPBOARD 1
+
+/*
+ * Global variables
+ */
+
+extern int xfixes_event_base;
+Bool fPrimarySelection = TRUE;
+
+extern Bool g_fClipboardPrimary;
+
+/*
+ * Local variables
+ */
+
+static Window s_iOwners[CLIP_NUM_SELECTIONS] = { None, None };
+static const char *szSelectionNames[CLIP_NUM_SELECTIONS] =
+ { "PRIMARY", "CLIPBOARD" };
+
+static unsigned int lastOwnedSelectionIndex = CLIP_OWN_NONE;
+
+static void
+MonitorSelection(XFixesSelectionNotifyEvent * e, unsigned int i)
+{
+ /* Look for owned -> not owned transition */
+ if (None == e->owner && None != s_iOwners[i]) {
+ unsigned int other_index;
+
+ winDebug("MonitorSelection - %s - Going from owned to not owned.\n",
+ szSelectionNames[i]);
+
+ /* If this selection is not owned, the other monitored selection must be the most
+ recently owned, if it is owned at all */
+ if (i == CLIP_OWN_PRIMARY)
+ other_index = CLIP_OWN_CLIPBOARD;
+ if (i == CLIP_OWN_CLIPBOARD)
+ other_index = CLIP_OWN_PRIMARY;
+ if (None != s_iOwners[other_index])
+ lastOwnedSelectionIndex = other_index;
+ else
+ lastOwnedSelectionIndex = CLIP_OWN_NONE;
+ }
+
+ /* Save last owned selection */
+ if (None != e->owner) {
+ lastOwnedSelectionIndex = i;
+ }
-extern Bool g_fClipboardPrimary;
+ /* Save new selection owner or None */
+ s_iOwners[i] = e->owner;
+ winDebug("MonitorSelection - %s - Now owned by XID %x\n",
+ szSelectionNames[i], e->owner);
+}
+
+Atom
+winClipboardGetLastOwnedSelectionAtom(ClipboardAtoms *atoms)
+{
+ if (lastOwnedSelectionIndex == CLIP_OWN_NONE)
+ return None;
+
+ if (lastOwnedSelectionIndex == CLIP_OWN_PRIMARY)
+ return XA_PRIMARY;
+
+ if (lastOwnedSelectionIndex == CLIP_OWN_CLIPBOARD)
+ return atoms->atomClipboard;
+
+ return None;
+}
+
+
+void
+winClipboardInitMonitoredSelections(void)
+{
+ /* Initialize static variables */
+ int i;
+ for (i = 0; i < CLIP_NUM_SELECTIONS; ++i)
+ s_iOwners[i] = None;
+
+ lastOwnedSelectionIndex = CLIP_OWN_NONE;
+}
+
+static int
+winClipboardSelectionNotifyTargets(HWND hwnd, Window iWindow, Display *pDisplay, ClipboardConversionData *data, ClipboardAtoms *atoms)
+{
+ Atom type;
+ int format;
+ unsigned long nitems;
+ unsigned long after;
+ Atom *prop;
+
+ /* Retrieve the selection data and delete the property */
+ int iReturn = XGetWindowProperty(pDisplay,
+ iWindow,
+ atoms->atomLocalProperty,
+ 0,
+ INT_MAX,
+ True,
+ AnyPropertyType,
+ &type,
+ &format,
+ &nitems,
+ &after,
+ (unsigned char **)&prop);
+ if (iReturn != Success) {
+ ErrorF("winClipboardFlushXEvents - SelectionNotify - "
+ "XGetWindowProperty () failed, aborting: %d\n", iReturn);
+ } else {
+ int i;
+ data->targetList = malloc((nitems+1)*sizeof(Atom));
+
+ for (i = 0; i < nitems; i++)
+ {
+ Atom atom = prop[i];
+ char *pszAtomName = XGetAtomName(pDisplay, atom);
+ data->targetList[i] = atom;
+ winDebug("winClipboardFlushXEvents - SelectionNotify - target[%d] %d = %s\n", i, atom, pszAtomName);
+ XFree(pszAtomName);
+ }
+
+ data->targetList[nitems] = 0;
+
+ XFree(prop);
+ }
+
+ return WIN_XEVENTS_NOTIFY_TARGETS;
+}
/*
* Process any pending X events
@@ -47,21 +195,13 @@ extern Bool g_fClipboardPrimary;
int
winClipboardFlushXEvents(HWND hwnd,
- int iWindow, Display * pDisplay, Bool fUseUnicode, Bool ClipboardOpened)
+ Window iWindow, Display * pDisplay, ClipboardConversionData *data, ClipboardAtoms *atoms)
{
- static Atom atomLocalProperty;
- static Atom atomCompoundText;
- static Atom atomUTF8String;
- static Atom atomTargets;
- static int generation;
-
- if (generation != serverGeneration) {
- generation = serverGeneration;
- atomLocalProperty = XInternAtom(pDisplay, WIN_LOCAL_PROPERTY, False);
- atomUTF8String = XInternAtom(pDisplay, "UTF8_STRING", False);
- atomCompoundText = XInternAtom(pDisplay, "COMPOUND_TEXT", False);
- atomTargets = XInternAtom(pDisplay, "TARGETS", False);
- }
+ Atom atomClipboard = atoms->atomClipboard;
+ Atom atomLocalProperty = atoms->atomLocalProperty;
+ Atom atomUTF8String = atoms->atomUTF8String;
+ Atom atomCompoundText = atoms->atomCompoundText;
+ Atom atomTargets = atoms->atomTargets;
/* Process all pending events */
while (XPending(pDisplay)) {
@@ -74,15 +214,11 @@ winClipboardFlushXEvents(HWND hwnd,
int iReturn;
HGLOBAL hGlobal = NULL;
XICCEncodingStyle xiccesStyle;
- int iConvertDataLen = 0;
char *pszConvertData = NULL;
char *pszTextList[2] = { NULL };
int iCount;
char **ppszTextList = NULL;
wchar_t *pwszUnicodeStr = NULL;
- int iUnicodeLen = 0;
- int iReturnDataLen = 0;
- int i;
Bool fAbort = FALSE;
Bool fCloseClipboard = FALSE;
Bool fSetClipboardData = TRUE;
@@ -90,8 +226,6 @@ winClipboardFlushXEvents(HWND hwnd,
/* Get the next event - will not block because one is ready */
XNextEvent(pDisplay, &event);
- winDebug ("Received event type %d\n",event.type);
-
/* Branch on the event type */
switch (event.type) {
/*
@@ -111,8 +245,6 @@ winClipboardFlushXEvents(HWND hwnd,
winDebug("SelectionRequest - Target atom name %s\n", pszAtomName);
XFree(pszAtomName);
pszAtomName = NULL;
- winDebug ("SelectionRequest - owner %d\n", event.xselectionrequest.owner);
- winDebug ("SelectionRequest - requestor %d\n", event.xselectionrequest.requestor);
}
#endif
@@ -182,8 +314,7 @@ winClipboardFlushXEvents(HWND hwnd,
if (!OpenClipboard (hwnd))
{
ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
- "OpenClipboard () failed: %08lx\n",
- GetLastError ());
+ "OpenClipboard () failed: %08lx\n", GetLastError());
/* Abort */
fAbort = TRUE;
@@ -195,7 +326,7 @@ winClipboardFlushXEvents(HWND hwnd,
}
/* Check that clipboard format is available */
- if (fUseUnicode && !IsClipboardFormatAvailable(CF_UNICODETEXT)) {
+ if (data->fUseUnicode && !IsClipboardFormatAvailable(CF_UNICODETEXT)) {
static int count; /* Hack to stop acroread spamming the log */
static HWND lasthwnd; /* I've not seen any other client get here repeatedly? */
@@ -212,7 +343,7 @@ winClipboardFlushXEvents(HWND hwnd,
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionRequest_Done;
}
- else if (!fUseUnicode && !IsClipboardFormatAvailable(CF_TEXT)) {
+ else if (!data->fUseUnicode && !IsClipboardFormatAvailable(CF_TEXT)) {
ErrorF("winClipboardFlushXEvents - CF_TEXT is not "
"available from Win32 clipboard. Aborting.\n");
@@ -234,7 +365,7 @@ winClipboardFlushXEvents(HWND hwnd,
xiccesStyle = XStringStyle;
/* Get a pointer to the clipboard text, in desired format */
- if (fUseUnicode) {
+ if (data->fUseUnicode) {
/* Retrieve clipboard data */
hGlobal = GetClipboardData(CF_UNICODETEXT);
}
@@ -243,17 +374,17 @@ winClipboardFlushXEvents(HWND hwnd,
hGlobal = GetClipboardData(CF_TEXT);
}
if (!hGlobal) {
- if (GetLastError()==ERROR_CLIPBOARD_NOT_OPEN && ClipboardOpened)
- {
- ErrorF("We should not have received a SelectionRequest????\n"
- "The owner is the clipboard, but in reality it was"
- "an X window\n");
- /* Set the owner to None */
- if (g_fClipboardPrimary) XSetSelectionOwner (pDisplay, XA_PRIMARY, None, CurrentTime);
- XSetSelectionOwner (pDisplay, XInternAtom (pDisplay, "CLIPBOARD", False), None, CurrentTime);
- }
- ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
- "GetClipboardData () failed: %08lx\n", GetLastError());
+ if (GetLastError()==ERROR_CLIPBOARD_NOT_OPEN && ClipboardOpened)
+ {
+ ErrorF("We should not have received a SelectionRequest????\n"
+ "The owner is the clipboard, but in reality it was"
+ "an X window\n");
+ /* Set the owner to None */
+ if (g_fClipboardPrimary) XSetSelectionOwner (pDisplay, XA_PRIMARY, None, CurrentTime);
+ XSetSelectionOwner (pDisplay, XInternAtom (pDisplay, "CLIPBOARD", False), None, CurrentTime);
+ }
+ ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
+ "GetClipboardData () failed: %08lx\n", GetLastError());
/* Abort */
fAbort = TRUE;
@@ -262,8 +393,8 @@ winClipboardFlushXEvents(HWND hwnd,
pszGlobalData = (char *) GlobalLock(hGlobal);
/* Convert the Unicode string to UTF8 (MBCS) */
- if (fUseUnicode) {
- iConvertDataLen = WideCharToMultiByte(CP_UTF8,
+ if (data->fUseUnicode) {
+ int iConvertDataLen = WideCharToMultiByte(CP_UTF8,
0,
(LPCWSTR) pszGlobalData,
-1, NULL, 0, NULL, NULL);
@@ -278,7 +409,6 @@ winClipboardFlushXEvents(HWND hwnd,
}
else {
pszConvertData = strdup(pszGlobalData);
- iConvertDataLen = strlen(pszConvertData) + 1;
}
/* Convert DOS string to UNIX string */
@@ -293,7 +423,7 @@ winClipboardFlushXEvents(HWND hwnd,
xtpText.nitems = 0;
/* Create the text property from the text list */
- if (fUseUnicode) {
+ if (data->fUseUnicode) {
#ifdef X_HAVE_UTF8_STRING
iReturn = Xutf8TextListToTextProperty(pDisplay,
pszTextList,
@@ -340,11 +470,11 @@ winClipboardFlushXEvents(HWND hwnd,
/* Release the clipboard data */
GlobalUnlock(hGlobal);
pszGlobalData = NULL;
- if (fCloseClipboard)
- {
- fCloseClipboard = FALSE;
- CloseClipboard ();
- }
+ if (fCloseClipboard)
+ {
+ fCloseClipboard = FALSE;
+ CloseClipboard ();
+ }
/* Clean up */
XFree(xtpText.value);
xtpText.value = NULL;
@@ -423,6 +553,7 @@ winClipboardFlushXEvents(HWND hwnd,
/*
* SelectionNotify
*/
+
case SelectionNotify:
#ifdef _DEBUG
winDebug("winClipboardFlushXEvents - SelectionNotify\n");
@@ -435,82 +566,37 @@ winClipboardFlushXEvents(HWND hwnd,
winDebug
("winClipboardFlushXEvents - SelectionNotify - ATOM: %s\n",
pszAtomName);
- winDebug ("SelectionNotify - requestor %d\n", event.xselectionrequest.requestor);
XFree(pszAtomName);
}
#endif
/*
- * Request conversion of UTF8 and CompoundText targets.
- */
- if (event.xselection.property == None) {
- if (event.xselection.target == XA_STRING) {
- winDebug("winClipboardFlushXEvents - SelectionNotify - "
- "XA_STRING\n");
+ SelectionNotify with property of None indicates either:
- return WIN_XEVENTS_CONVERT;
- }
- else if (event.xselection.target == atomUTF8String) {
- winDebug("winClipboardFlushXEvents - SelectionNotify - "
- "Requesting conversion of UTF8 target.\n");
-
- XConvertSelection(pDisplay,
- event.xselection.selection,
- XA_STRING,
- atomLocalProperty, iWindow, CurrentTime);
-
- /* Process the ConvertSelection event */
- XFlush(pDisplay);
- return WIN_XEVENTS_CONVERT;
- }
-#ifdef X_HAVE_UTF8_STRING
- else if (event.xselection.target == atomCompoundText) {
- winDebug("winClipboardFlushXEvents - SelectionNotify - "
- "Requesting conversion of CompoundText target.\n");
-
- XConvertSelection(pDisplay,
- event.xselection.selection,
- atomUTF8String,
- atomLocalProperty, iWindow, CurrentTime);
-
- /* Process the ConvertSelection event */
- XFlush(pDisplay);
- return WIN_XEVENTS_CONVERT;
- }
-#endif
- else {
+ (i) Generated by the X server if no owner for the specified selection exists
+ (perhaps it's disappeared on us mid-transaction), or
+ (ii) Sent by the selection owner when the requested selection conversion could
+ not be performed or server errors prevented the conversion data being returned
+ */
+ if (event.xselection.property == None) {
ErrorF("winClipboardFlushXEvents - SelectionNotify - "
- "Unknown format. Cannot request conversion, "
- "aborting.\n");
- break;
+ "Conversion to format %d refused.\n",
+ event.xselection.target);
+ return WIN_XEVENTS_FAILED;
}
- }
- /* Retrieve the size of the stored data */
- iReturn = XGetWindowProperty(pDisplay, iWindow, atomLocalProperty, 0, 0, /* Don't get data, just size */
- False,
- AnyPropertyType,
- &xtpText.encoding,
- &xtpText.format,
- &xtpText.nitems,
- &ulReturnBytesLeft, &xtpText.value);
- if (iReturn != Success) {
- ErrorF("winClipboardFlushXEvents - SelectionNotify - "
- "XGetWindowProperty () failed, aborting: %d\n", iReturn);
- break;
+ if (event.xselection.target == atomTargets) {
+ return winClipboardSelectionNotifyTargets(hwnd, iWindow, pDisplay, data, atoms);
}
- winDebug("SelectionNotify - returned data %d left %d\n",
- xtpText.nitems, ulReturnBytesLeft);
-
- /* Request the selection data */
+ /* Retrieve the selection data and delete the property */
iReturn = XGetWindowProperty(pDisplay,
iWindow,
atomLocalProperty,
0,
- ulReturnBytesLeft,
- False,
+ INT_MAX,
+ True,
AnyPropertyType,
&xtpText.encoding,
&xtpText.format,
@@ -519,7 +605,7 @@ winClipboardFlushXEvents(HWND hwnd,
if (iReturn != Success) {
ErrorF("winClipboardFlushXEvents - SelectionNotify - "
"XGetWindowProperty () failed, aborting: %d\n", iReturn);
- break;
+ goto winClipboardFlushXEvents_SelectionNotify_Done;
}
#ifdef WINDBG
@@ -535,7 +621,7 @@ winClipboardFlushXEvents(HWND hwnd,
}
#endif
- if (fUseUnicode) {
+ if (data->fUseUnicode) {
#ifdef X_HAVE_UTF8_STRING
/* Convert the text property to a text list */
iReturn = Xutf8TextPropertyToTextList(pDisplay,
@@ -551,7 +637,8 @@ winClipboardFlushXEvents(HWND hwnd,
if (iReturn == Success || iReturn > 0) {
/* Conversion succeeded or some unconvertible characters */
if (ppszTextList != NULL) {
- iReturnDataLen = 0;
+ int i;
+ int iReturnDataLen = 0;
for (i = 0; i < iCount; i++) {
iReturnDataLen += strlen(ppszTextList[i]);
}
@@ -600,14 +687,14 @@ winClipboardFlushXEvents(HWND hwnd,
/* Convert the X clipboard string to DOS format */
winClipboardUNIXtoDOS((unsigned char **)&pszReturnData, strlen(pszReturnData));
- if (fUseUnicode) {
+ if (data->fUseUnicode) {
/* Find out how much space needed to convert MBCS to Unicode */
- iUnicodeLen = MultiByteToWideChar(CP_UTF8,
+ int iUnicodeLen = MultiByteToWideChar(CP_UTF8,
0,
pszReturnData, -1, NULL, 0);
- /* Allocate memory for the Unicode string */
- pwszUnicodeStr = malloc(sizeof(wchar_t) * (iUnicodeLen + 1));
+ /* NOTE: iUnicodeLen includes space for null terminator */
+ pwszUnicodeStr = malloc(sizeof(wchar_t) * iUnicodeLen);
if (!pwszUnicodeStr) {
ErrorF("winClipboardFlushXEvents - SelectionNotify "
"malloc failed for pwszUnicodeStr, aborting.\n");
@@ -625,9 +712,10 @@ winClipboardFlushXEvents(HWND hwnd,
/* Allocate global memory for the X clipboard data */
hGlobal = GlobalAlloc(GMEM_MOVEABLE,
- sizeof(wchar_t) * (iUnicodeLen + 1));
+ sizeof(wchar_t) * iUnicodeLen);
}
else {
+ int iConvertDataLen = 0;
pszConvertData = strdup(pszReturnData);
iConvertDataLen = strlen(pszConvertData) + 1;
@@ -659,9 +747,8 @@ winClipboardFlushXEvents(HWND hwnd,
}
/* Copy the returned string into the global memory */
- if (fUseUnicode) {
- memcpy(pszGlobalData,
- pwszUnicodeStr, sizeof(wchar_t) * (iUnicodeLen + 1));
+ if (data->fUseUnicode) {
+ wcscpy((wchar_t *)pszGlobalData, pwszUnicodeStr);
free(pwszUnicodeStr);
pwszUnicodeStr = NULL;
}
@@ -676,7 +763,7 @@ winClipboardFlushXEvents(HWND hwnd,
pszGlobalData = NULL;
/* Push the selection data to the Windows clipboard */
- if (fUseUnicode)
+ if (data->fUseUnicode)
SetClipboardData(CF_UNICODETEXT, hGlobal);
else
SetClipboardData(CF_TEXT, hGlobal);
@@ -706,39 +793,92 @@ winClipboardFlushXEvents(HWND hwnd,
SetClipboardData(CF_UNICODETEXT, NULL);
SetClipboardData(CF_TEXT, NULL);
}
- return WIN_XEVENTS_NOTIFY;
+ return WIN_XEVENTS_NOTIFY_DATA;
- /*
- * SelectionClear
- */
- case SelectionClear:
-#ifdef _DEBUG
+ case SelectionClear:
winDebug("SelectionClear - doing nothing\n");
- {
- char *pszAtomName;
-
- pszAtomName = XGetAtomName (pDisplay,
- event.xselection.selection);
-
- winDebug ("SelectionClear - ATOM: %s\n",
- pszAtomName);
- winDebug ("SelectionClear - owner %d\n", event.xselectionrequest.owner);
-
- XFree (pszAtomName);
- }
-#endif
break;
case PropertyNotify:
break;
-
+
case MappingNotify:
XRefreshKeyboardMapping((XMappingEvent *)&event);
break;
default:
- ErrorF("winClipboardFlushXEvents - unexpected event type %d\n",
- event.type);
+ if (event.type == XFixesSetSelectionOwnerNotify + xfixes_event_base) {
+ XFixesSelectionNotifyEvent *e =
+ (XFixesSelectionNotifyEvent *) & event;
+
+ winDebug("winClipboardFlushXEvents - XFixesSetSelectionOwnerNotify\n");
+
+ /* Save selection owners for monitored selections, ignore other selections */
+ if ((e->selection == XA_PRIMARY) && fPrimarySelection) {
+ MonitorSelection(e, CLIP_OWN_PRIMARY);
+ }
+ else if (e->selection == atomClipboard) {
+ MonitorSelection(e, CLIP_OWN_CLIPBOARD);
+ }
+ else
+ break;
+
+ /* Selection is being disowned */
+ if (e->owner == None) {
+ winDebug
+ ("winClipboardFlushXEvents - No window, returning.\n");
+ break;
+ }
+
+ /*
+ XXX: there are all kinds of wacky edge cases we might need here:
+ - we own windows clipboard, but neither PRIMARY nor CLIPBOARD have an owner, so we should disown it?
+ - root window is taking ownership?
+ */
+
+ /* If we are the owner of the most recently owned selection, don't go all recursive :) */
+ if ((lastOwnedSelectionIndex != CLIP_OWN_NONE) &&
+ (s_iOwners[lastOwnedSelectionIndex] == iWindow)) {
+ winDebug("winClipboardFlushXEvents - Ownership changed to us, aborting.\n");
+ break;
+ }
+
+ /* Close clipboard if we have it open already (possible? correct??) */
+ if (GetOpenClipboardWindow() == hwnd) {
+ CloseClipboard();
+ }
+
+ /* Access the Windows clipboard */
+ if (!OpenClipboard(hwnd)) {
+ ErrorF("winClipboardFlushXEvents - OpenClipboard () failed: %08x\n",
+ (int) GetLastError());
+ break;
+ }
+
+ /* Take ownership of the Windows clipboard */
+ if (!EmptyClipboard()) {
+ ErrorF("winClipboardFlushXEvents - EmptyClipboard () failed: %08x\n",
+ (int) GetLastError());
+ break;
+ }
+
+ /* Advertise regular text and unicode */
+ SetClipboardData(CF_UNICODETEXT, NULL);
+ SetClipboardData(CF_TEXT, NULL);
+
+ /* Release the clipboard */
+ if (!CloseClipboard()) {
+ ErrorF("winClipboardFlushXEvents - CloseClipboard () failed: %08x\n",
+ (int) GetLastError());
+ break;
+ }
+ }
+ /* XFixesSelectionWindowDestroyNotifyMask */
+ /* XFixesSelectionClientCloseNotifyMask */
+ else {
+ ErrorF("winClipboardFlushXEvents - unexpected event type %d\n",
+ event.type);
+ }
break;
}
}