Learn R Programming

utils (version 3.6.0)

getWindowsHandle: Get a Windows Handle

Description

Get the Windows handle of a window or of the R process in MS Windows.

Usage

getWindowsHandle(which = "Console")

Arguments

which

a string (see below), or the number of a graphics device window (which must a windows one).

Value

An external pointer holding the Windows handle, or NULL.

Details

getWindowsHandle gets the Windows handle. Possible choices for which are:

"Console" The console window handle.
"Frame" The MDI frame window handle.
"Process" The process pseudo-handle.

These values are not normally useful to users, but may be used by developers making add-ons to R.

NULL is returned for the Frame handle if not running in MDI mode, for the Console handle when running Rterm, for any unrecognized string for which, or for a graphics device with no corresponding window.

Other windows (help browsers, etc.) are not accessible through this function.

See Also

getIdentification, getWindowsHandles

Examples

Run this code
# NOT RUN {
if(.Platform$OS.type == "windows")
  print( getWindowsHandle() )
# }

Run the code above in your browser using DataLab