/* * tkMacOSXXStubs.c -- * * This file contains most of the X calls called by Tk. Many of these * calls are just stubs and either don't make sense on the Macintosh or * their implementation just doesn't do anything. Other calls will * eventually be moved into other files. * * Copyright © 1995-1997 Sun Microsystems, Inc. * Copyright © 2001-2009, Apple Inc. * Copyright © 2005-2009 Daniel A. Steffen * Copyright © 2014 Marc Culler. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. */ #define XLIB_ILLEGAL_ACCESS #include "tkMacOSXPrivate.h" #include "tkMacOSXInt.h" #include #include /* * Because this file is still under major development Debugger statements are * used through out this file. The define TCL_DEBUG will decide whether the * debugger statements actually call the debugger or not. */ #ifndef TCL_DEBUG # define Debugger() #endif #define ROOT_ID 10 /* * Declarations of static variables used in this file. */ /* The unique Macintosh display. */ static TkDisplay *gMacDisplay = NULL; /* The default name of the Macintosh display. */ static const char *macScreenName = ":0"; /* Timestamp showing the last reset of the inactivity timer. */ static Time lastInactivityReset = 0; /* * Forward declarations of procedures used in this file. */ static XID MacXIdAlloc(Display *display); static int DefaultErrorHandler(Display *display, XErrorEvent *err_evt); /* *---------------------------------------------------------------------- * * TkMacOSXDisplayChanged -- * * Called to set up initial screen info or when an event indicated * display (screen) change. * * Results: * None. * * Side effects: * May change info regarding the screen. * *---------------------------------------------------------------------- */ void TkMacOSXDisplayChanged( Display *display) { Screen *screen; NSArray *nsScreens; if (display == NULL || (((_XPrivDisplay)(display))->screens) == NULL) { return; } screen = (((_XPrivDisplay)(display))->screens); nsScreens = [NSScreen screens]; if (nsScreens && [nsScreens count]) { NSScreen *s = [nsScreens objectAtIndex:0]; NSRect bounds = [s frame]; NSRect maxBounds = NSZeroRect; DefaultDepthOfScreen(screen) = NSBitsPerPixelFromDepth([s depth]); WidthOfScreen(screen) = bounds.size.width; HeightOfScreen(screen) = bounds.size.height; WidthMMOfScreen(screen) = (bounds.size.width * 381 + 720) / 1440; /* = 3/4 * 254/720 */ HeightMMOfScreen(screen) = (bounds.size.height * 381 + 720) / 1440; /* = 3/4 * 254/720 */ for (s in nsScreens) { maxBounds = NSUnionRect(maxBounds, [s visibleFrame]); } *((NSRect *)screen->ext_data) = maxBounds; } } /* *---------------------------------------------------------------------- * * TkMacOSXZeroScreenHeight -- * * Replacement for the tkMacOSXZeroScreenHeight variable to avoid * caching values from NSScreen (fixes bug aea00be199). * * Results: * Returns the height of screen 0 (the screen assigned the menu bar * in System Preferences), or 0.0 if getting [NSScreen screens] fails. * * Side effects: * None. * *---------------------------------------------------------------------- */ CGFloat TkMacOSXZeroScreenHeight() { NSArray *nsScreens = [NSScreen screens]; if (nsScreens && [nsScreens count]) { NSScreen *s = [nsScreens objectAtIndex:0]; NSRect bounds = [s frame]; return bounds.size.height; } return 0.0; } /* *---------------------------------------------------------------------- * * TkMacOSXZeroScreenTop -- * * Replacement for the tkMacOSXZeroScreenTop variable to avoid * caching values from visibleFrame. * * Results: * Returns how far below the top of screen 0 to draw * (i.e. the height of the menu bar if it is always shown), * or 0.0 if getting [NSScreen screens] fails. * * Side effects: * None. * *---------------------------------------------------------------------- */ CGFloat TkMacOSXZeroScreenTop() { NSArray *nsScreens = [NSScreen screens]; if (nsScreens && [nsScreens count]) { NSScreen *s = [nsScreens objectAtIndex:0]; NSRect bounds = [s frame], visible = [s visibleFrame]; return bounds.size.height - (visible.origin.y + visible.size.height); } return 0.0; } /* *---------------------------------------------------------------------- * * TkpOpenDisplay/XkbOpenDisplay -- * * Create the Display structure and fill it with device specific * information. * * Results: * Returns a Display structure on success or NULL on failure. * * Side effects: * Allocates a new Display structure. * *---------------------------------------------------------------------- */ TkDisplay * TkpOpenDisplay( const char *display_name) { Display *display; if (gMacDisplay != NULL) { if (strcmp(DisplayString(gMacDisplay->display), display_name) == 0) { return gMacDisplay; } else { return NULL; } } NSAutoreleasePool *pool = [NSAutoreleasePool new]; display = XkbOpenDisplay((char *)display_name, NULL, NULL, NULL, NULL, NULL); /* * Initialize screen bits that may change */ TkMacOSXDisplayChanged(display); gMacDisplay = (TkDisplay *)ckalloc(sizeof(TkDisplay)); /* * This is the quickest way to make sure that all the *Init flags get * properly initialized */ bzero(gMacDisplay, sizeof(TkDisplay)); gMacDisplay->display = display; [pool drain]; /* * Key map info must be available immediately, because of "send event". */ TkpInitKeymapInfo(gMacDisplay); return gMacDisplay; } Display * XkbOpenDisplay( TCL_UNUSED(const char *), int *ev_rtrn, int *err_rtrn, int *major_rtrn, int *minor_rtrn, int *reason) { _XPrivDisplay display = (_XPrivDisplay)ckalloc(sizeof(Display)); Screen *screen = (Screen *)ckalloc(sizeof(Screen)); int fd = 0; NSArray *cgVers; static char vendor[25] = ""; static NSRect maxBounds = {{0, 0}, {0, 0}}; bzero(display, sizeof(Display)); bzero(screen, sizeof(Screen)); display->resource_alloc = MacXIdAlloc; LastKnownRequestProcessed(display) = 1; display->qlen = 0; display->fd = fd; display->screens = screen; display->nscreens = 1; display->default_screen = 0; display->display_name = (char *) macScreenName; /* * These screen bits never change */ screen->root = ROOT_ID; screen->display = display; screen->black_pixel = 0x00000000; screen->white_pixel = 0x00FFFFFF; screen->ext_data = (XExtData *) &maxBounds; screen->root_visual = (Visual *)ckalloc(sizeof(Visual)); screen->root_visual->visualid = 0; screen->root_visual->c_class = TrueColor; screen->root_visual->red_mask = 0x00FF0000; screen->root_visual->green_mask = 0x0000FF00; screen->root_visual->blue_mask = 0x000000FF; screen->root_visual->bits_per_rgb = 24; screen->root_visual->map_entries = 256; cgVers = [[[NSBundle bundleWithIdentifier:@"com.apple.CoreGraphics"] objectForInfoDictionaryKey:@"CFBundleShortVersionString"] componentsSeparatedByString:@"."]; if ([cgVers count] >= 2) { display->proto_major_version = [[cgVers objectAtIndex:1] integerValue]; } if ([cgVers count] >= 3) { display->proto_minor_version = [[cgVers objectAtIndex:2] integerValue]; } if (!vendor[0]) { snprintf(vendor, sizeof(vendor), "Apple AppKit %g", NSAppKitVersionNumber); } display->vendor = vendor; { int major, minor, patch; #if MAC_OS_X_VERSION_MAX_ALLOWED < 101000 Gestalt(gestaltSystemVersionMajor, (SInt32*)&major); Gestalt(gestaltSystemVersionMinor, (SInt32*)&minor); Gestalt(gestaltSystemVersionBugFix, (SInt32*)&patch); #else NSOperatingSystemVersion systemVersion = [[NSProcessInfo processInfo] operatingSystemVersion]; major = (int)systemVersion.majorVersion; minor = (int)systemVersion.minorVersion; patch = (int)systemVersion.patchVersion; #endif display->release = major << 16 | minor << 8 | patch; } if (ev_rtrn) *ev_rtrn = 0; if (err_rtrn) *err_rtrn = 0; if (major_rtrn) *major_rtrn = 0; if (minor_rtrn) *minor_rtrn = 0; if (reason) *reason = 0; return display; } /* *---------------------------------------------------------------------- * * TkpCloseDisplay -- * * Deallocates a display structure created by TkpOpenDisplay. * * Results: * None. * * Side effects: * Frees memory. * *---------------------------------------------------------------------- */ void TkpCloseDisplay( TkDisplay *displayPtr) { _XPrivDisplay display = (_XPrivDisplay)displayPtr->display; if (gMacDisplay != displayPtr) { Tcl_Panic("TkpCloseDisplay: tried to call TkpCloseDisplay on bad display"); } gMacDisplay = NULL; if (display->screens != NULL) { if (DefaultVisualOfScreen(ScreenOfDisplay(display, 0)) != NULL) { ckfree(DefaultVisualOfScreen(ScreenOfDisplay(display, 0))); } ckfree(display->screens); } ckfree(display); } /* *---------------------------------------------------------------------- * * TkClipCleanup -- * * This procedure is called to cleanup resources associated with claiming * clipboard ownership and for receiving selection get results. This * function is called in tkWindow.c. This has to be called by the display * cleanup function because we still need the access display elements. * * Results: * None. * * Side effects: * Resources are freed - the clipboard may no longer be used. * *---------------------------------------------------------------------- */ void TkClipCleanup( TkDisplay *dispPtr) /* display associated with clipboard */ { /* * Make sure that the local scrap is transfered to the global scrap if * needed. */ [NSApp tkProvidePasteboard:dispPtr]; if (dispPtr->clipWindow != NULL) { Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom, dispPtr->applicationAtom); Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom, dispPtr->windowAtom); Tk_DestroyWindow(dispPtr->clipWindow); Tcl_Release(dispPtr->clipWindow); dispPtr->clipWindow = NULL; } } /* *---------------------------------------------------------------------- * * MacXIdAlloc -- * * This procedure is invoked by Xlib as the resource allocator for a * display. * * Results: * The return value is an X resource identifier that isn't currently in * use. * * Side effects: * The identifier is removed from the stack of free identifiers, if it * was previously on the stack. * *---------------------------------------------------------------------- */ static XID MacXIdAlloc( TCL_UNUSED(Display *)) /* Display for which to allocate. */ { static long int cur_id = 100; /* * Some special XIds are reserved * - this is why we start at 100 */ return ++cur_id; } /* *---------------------------------------------------------------------- * * DefaultErrorHandler -- * * This procedure is the default X error handler. Tk uses it's own error * handler so this call should never be called. * * Results: * None. * * Side effects: * This function will call panic and exit. * *---------------------------------------------------------------------- */ static int DefaultErrorHandler( TCL_UNUSED(Display *), TCL_UNUSED(XErrorEvent *)) { /* * This call should never be called. Tk replaces it with its own error * handler. */ Tcl_Panic("Warning hit bogus error handler!"); return 0; } char * XGetAtomName( Display *display, TCL_UNUSED(Atom)) { LastKnownRequestProcessed(display)++; return NULL; } XErrorHandler XSetErrorHandler( TCL_UNUSED(XErrorHandler)) { return DefaultErrorHandler; } Window XRootWindow( Display *display, TCL_UNUSED(int)) { LastKnownRequestProcessed(display)++; return ROOT_ID; } int XGetGeometry( Display *display, Drawable d, Window *root_return, int *x_return, int *y_return, unsigned int *width_return, unsigned int *height_return, unsigned int *border_width_return, unsigned int *depth_return) { TkWindow *winPtr = ((MacDrawable *)d)->winPtr; LastKnownRequestProcessed(display)++; *root_return = ROOT_ID; if (winPtr) { *x_return = Tk_X(winPtr); *y_return = Tk_Y(winPtr); *width_return = Tk_Width(winPtr); *height_return = Tk_Height(winPtr); *border_width_return = winPtr->changes.border_width; *depth_return = Tk_Depth(winPtr); } else { CGSize size = ((MacDrawable *)d)->size; *x_return = 0; *y_return = 0; *width_return = size.width; *height_return = size.height; *border_width_return = 0; *depth_return = 32; } return 1; } int XChangeProperty( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(Atom), TCL_UNUSED(Atom), TCL_UNUSED(int), TCL_UNUSED(int), TCL_UNUSED(_Xconst unsigned char *), TCL_UNUSED(int)) { Debugger(); return Success; } int XSelectInput( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(long)) { Debugger(); return Success; } int XBell( TCL_UNUSED(Display *), TCL_UNUSED(int)) { NSBeep(); return Success; } #if 0 void XSetWMNormalHints( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(XSizeHints *)) { /* * Do nothing. Shouldn't even be called. */ } XSizeHints * XAllocSizeHints(void) { /* * Always return NULL. Tk code checks to see if NULL is returned & does * nothing if it is. */ return NULL; } #endif GContext XGContextFromGC( TCL_UNUSED(GC)) { /* * TODO: currently a no-op */ return 0; } Status XSendEvent( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(Bool), TCL_UNUSED(long), TCL_UNUSED(XEvent *)) { Debugger(); return 0; } int XClearWindow( TCL_UNUSED(Display *), TCL_UNUSED(Window)) { return Success; } /* int XDrawPoint( Display* display, Drawable d, GC gc, int x, int y) { return Success; } int XDrawPoints( Display* display, Drawable d, GC gc, XPoint* points, int npoints, int mode) { return Success; } */ int XWarpPointer( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(Window), TCL_UNUSED(int), TCL_UNUSED(int), TCL_UNUSED(unsigned int), TCL_UNUSED(unsigned int), TCL_UNUSED(int), TCL_UNUSED(int)) { return Success; } int XQueryColor( TCL_UNUSED(Display *), TCL_UNUSED(Colormap), XColor* def_in_out) { unsigned long p; unsigned char r, g, b; XColor *d = def_in_out; p = d->pixel; r = (p & 0x00FF0000) >> 16; g = (p & 0x0000FF00) >> 8; b = (p & 0x000000FF); d->red = (r << 8) | r; d->green = (g << 8) | g; d->blue = (b << 8) | b; d->flags = DoRed|DoGreen|DoBlue; d->pad = 0; return Success; } Bool XTranslateCoordinates( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(Window), TCL_UNUSED(int), TCL_UNUSED(int), TCL_UNUSED(int *), TCL_UNUSED(int *), TCL_UNUSED(Window *)) { return 0; } int XSetCommand( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(char **), TCL_UNUSED(int)) { return Success; } int XGetWindowAttributes( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(XWindowAttributes *)) { return Success; } Status XGetWMColormapWindows( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(Window **), TCL_UNUSED(int *)) { return Success; } int XIconifyWindow( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(int)) { return Success; } XHostAddress * XListHosts( TCL_UNUSED(Display *), TCL_UNUSED(int *), TCL_UNUSED(Bool *)) { return NULL; } int XLookupColor( TCL_UNUSED(Display *), TCL_UNUSED(Colormap), TCL_UNUSED(_Xconst char *), TCL_UNUSED(XColor *), TCL_UNUSED(XColor *)) { return Success; } int XNextEvent( TCL_UNUSED(Display *), TCL_UNUSED(XEvent *)) { return Success; } int XPutBackEvent( TCL_UNUSED(Display *), TCL_UNUSED(XEvent *)) { return Success; } int XQueryColors( TCL_UNUSED(Display *), TCL_UNUSED(Colormap), XColor* defs_in_out, int ncolors) { int i; unsigned long p; unsigned char r, g, b; XColor *d = defs_in_out; for (i = 0; i < ncolors; i++, d++) { p = d->pixel; r = (p & 0x00FF0000) >> 16; g = (p & 0x0000FF00) >> 8; b = (p & 0x000000FF); d->red = (r << 8) | r; d->green = (g << 8) | g; d->blue = (b << 8) | b; d->flags = DoRed|DoGreen|DoBlue; d->pad = 0; } return Success; } int XQueryTree( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(Window *), TCL_UNUSED(Window *), TCL_UNUSED(Window **), TCL_UNUSED(unsigned int *)) { return 0; } int XGetWindowProperty( Display *display, TCL_UNUSED(Window), TCL_UNUSED(Atom), TCL_UNUSED(long), TCL_UNUSED(long), TCL_UNUSED(Bool), TCL_UNUSED(Atom), Atom *actual_type_return, int *actual_format_return, unsigned long *nitems_return, unsigned long *bytes_after_return, TCL_UNUSED(unsigned char **)) { LastKnownRequestProcessed(display)++; *actual_type_return = None; *actual_format_return = *bytes_after_return = 0; *nitems_return = 0; return 0; } int XWindowEvent( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(long), TCL_UNUSED(XEvent *)) { return Success; } int XWithdrawWindow( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(int)) { return Success; } int XmbLookupString( TCL_UNUSED(XIC), TCL_UNUSED(XKeyPressedEvent *), TCL_UNUSED(char *), TCL_UNUSED(int), TCL_UNUSED(KeySym *), TCL_UNUSED(Status *)) { return Success; } int XRefreshKeyboardMapping( TCL_UNUSED(XMappingEvent *)) { /* used by tkXEvent.c */ Debugger(); return Success; } int XSetIconName( Display* display, TCL_UNUSED(Window), TCL_UNUSED(const char *)) { /* * This is a no-op, no icon name for Macs. */ LastKnownRequestProcessed(display)++; return Success; } int XForceScreenSaver( Display* display, TCL_UNUSED(int)) { /* * This function is just a no-op. It is defined to reset the screen saver. * However, there is no real way to do this on a Mac. Let me know if there * is! */ LastKnownRequestProcessed(display)++; return Success; } /* *---------------------------------------------------------------------- * * TkGetServerInfo -- * * Given a window, this procedure returns information about the window * server for that window. This procedure provides the guts of the "winfo * server" command. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ void TkGetServerInfo( Tcl_Interp *interp, /* The server information is returned in this * interpreter's result. */ Tk_Window tkwin) /* Token for window; this selects a particular * display and server. */ { char buffer[5 + TCL_INTEGER_SPACE * 2]; char buffer2[11 + TCL_INTEGER_SPACE]; snprintf(buffer, sizeof(buffer), "CG%d.%d ", ProtocolVersion(Tk_Display(tkwin)), ProtocolRevision(Tk_Display(tkwin))); snprintf(buffer2, sizeof(buffer2), " Mac OS X %x", VendorRelease(Tk_Display(tkwin))); Tcl_AppendResult(interp, buffer, ServerVendor(Tk_Display(tkwin)), buffer2, NULL); } /* *---------------------------------------------------------------------- * * XChangeWindowAttributes, XSetWindowBackground, * XSetWindowBackgroundPixmap, XSetWindowBorder, XSetWindowBorderPixmap, * XSetWindowBorderWidth, XSetWindowColormap * * These functions are all no-ops. They all have equivalent Tk calls that * should always be used instead. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ int XChangeWindowAttributes( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(unsigned long), TCL_UNUSED(XSetWindowAttributes *)) { return Success; } int XSetWindowBackground( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(unsigned long)) { return Success; } int XSetWindowBackgroundPixmap( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(Pixmap)) { return Success; } int XSetWindowBorder( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(unsigned long)) { return Success; } int XSetWindowBorderPixmap( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(Pixmap)) { return Success; } int XSetWindowBorderWidth( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(unsigned int)) { return Success; } int XSetWindowColormap( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(Colormap)) { Debugger(); return Success; } Status XStringListToTextProperty( TCL_UNUSED(char **), TCL_UNUSED(int), TCL_UNUSED(XTextProperty *)) { Debugger(); return Success; } void XSetWMClientMachine( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(XTextProperty *)) { Debugger(); } XIC XCreateIC(TCL_UNUSED(XIM), ...) { Debugger(); return (XIC) 0; } int XDeleteProperty( TCL_UNUSED(Display *), TCL_UNUSED(Window), TCL_UNUSED(Atom)) { return Success; } int XGetInputFocus( Display *display, TCL_UNUSED(Window *), TCL_UNUSED(int *)) { LastKnownRequestProcessed(display)++; return Success; } VisualID XVisualIDFromVisual( Visual *visual) { return visual->visualid; } XAfterFunction XSynchronize( Display *display, TCL_UNUSED(Bool)) { LastKnownRequestProcessed(display)++; return NULL; } int XUngrabServer( TCL_UNUSED(Display *)) { return 0; } int XFreeCursor( TCL_UNUSED(Display *), TCL_UNUSED(Cursor)) { return Success; } int XNoOp( Display *display) { LastKnownRequestProcessed(display)++; return 0; } int XGrabServer( TCL_UNUSED(Display *)) { return 0; } int XFree( void *data) { if ((data) != NULL) { ckfree(data); } return 0; } int XFlush( TCL_UNUSED(Display *)) { return 0; } /* *---------------------------------------------------------------------- * * TkGetDefaultScreenName -- * * Returns the name of the screen that Tk should use during * initialization. * * Results: * Returns a statically allocated string. * * Side effects: * None. * *---------------------------------------------------------------------- */ const char * TkGetDefaultScreenName( TCL_UNUSED(Tcl_Interp *), const char *screenName) /* If NULL, use default string. */ { if ((screenName == NULL) || (screenName[0] == '\0')) { screenName = macScreenName; } return screenName; } /* *---------------------------------------------------------------------- * * Tk_GetUserInactiveTime -- * * Return the number of milliseconds the user was inactive. * * Results: * The number of milliseconds the user has been inactive, or -1 if * querying the inactive time is not supported. * * Side effects: * None. *---------------------------------------------------------------------- */ long Tk_GetUserInactiveTime( TCL_UNUSED(Display *)) { io_registry_entry_t regEntry; CFMutableDictionaryRef props = NULL; CFTypeRef timeObj; long ret = -1l; uint64_t time; IOReturn result; regEntry = IOServiceGetMatchingService(0, IOServiceMatching("IOHIDSystem")); if (regEntry == 0) { return -1l; } result = IORegistryEntryCreateCFProperties(regEntry, &props, kCFAllocatorDefault, 0); IOObjectRelease(regEntry); if (result != KERN_SUCCESS || props == NULL) { return -1l; } timeObj = CFDictionaryGetValue(props, CFSTR("HIDIdleTime")); if (timeObj) { CFNumberGetValue((CFNumberRef)timeObj, kCFNumberSInt64Type, &time); /* Convert nanoseconds to milliseconds. */ ret = (long) (time/kMillisecondScale); } /* Cleanup */ CFRelease(props); /* * If the idle time reported by the system is larger than the elapsed * time since the last reset, return the elapsed time. */ long elapsed = (long)(TkpGetMS() - lastInactivityReset); if (ret > elapsed) { ret = elapsed; } return ret; } /* *---------------------------------------------------------------------- * * Tk_ResetUserInactiveTime -- * * Reset the user inactivity timer * * Results: * none * * Side effects: * The user inactivity timer of the underlaying windowing system is reset * to zero. * *---------------------------------------------------------------------- */ void Tk_ResetUserInactiveTime( TCL_UNUSED(Display *)) { lastInactivityReset = TkpGetMS(); } /* * Local Variables: * mode: objc * c-basic-offset: 4 * fill-column: 79 * coding: utf-8 * End: */