| % File src/library/tcltk/man/tclServiceMode.Rd |
| % Part of the R package, https://www.R-project.org |
| % Copyright 1995-2014 R Core Team |
| % Distributed under GPL 2 or later |
| |
| \name{tclServiceMode} |
| \alias{tclServiceMode} |
| \title{ Allow Tcl events to be serviced or not } |
| \description{ |
| This function controls or reports on the Tcl service mode, |
| i.e., whether Tcl will respond to events. |
| } |
| \usage{ |
| tclServiceMode(on = NULL) |
| } |
| \arguments{ |
| \item{on}{(logical) Whether event servicing is turned on. } |
| } |
| \details{ |
| If called with \code{on == NULL} (the default), no change is made. |
| |
| Note that this blocks all Tcl/Tk activity, including for widgets from |
| other packages. It may be better to manage mapping of windows individually. |
| } |
| \value{ |
| The value of the Tcl service mode before the call. |
| } |
| \examples{ |
| ## see demo(tkcanvas) for an example |
| \dontrun{ |
| oldmode <- tclServiceMode(FALSE) |
| # Do some work to create a nice picture. |
| # Nothing will be displayed until... |
| tclServiceMode(oldmode) |
| } |
| ## another idea is to use tkwm.withdraw() ... tkwm.deiconify() |
| } |
| \keyword{ misc } |