R: Get handles of windows.

getWindowsHandles {utils} | R Documentation

## Get handles of windows.

### Description

This function gets the Windows handles of visible top level windows or windows within the R MDI frame.

### Usage

    getWindowsHandles(which = "R", pattern = "", minimized = FALSE)

### Arguments

`which` | A vector of strings "R" or "all" (possibly with repetitions). See the Details section.
`pattern` | A vector of patterns that the titles of the windows must match.
`minimized` | A logical vector indicating whether minimized windows should be considered.

### Details

This function will search for Windows handles, for passing to external GUIs or to the `arrangeWindows` function. Each of the arguments may be a vector of values. These will be treated as follows:

- The arguments will all be recycled to the same length.

- The corresponding elements of each argument will be applied in separate searches.

- The final result will be the union of the windows identified in each of the searches.

If an element of `which` is `"R"`, only windows belonging to the current R process will be returned. In MDI mode, those will be the child windows within the R GUI frame. In SDI mode, all windows belonging to the process will be included.

If the element is `"all"`, then top level windows will be returned.

The elements of `pattern` will be used to make a subset of windows whose title text matches (according to `grep`) the pattern.

If `minimized = FALSE`, minimized windows will be ignored.

### Value

A list of external pointers containing the window handles.

### Note

This is only available on Windows.

### Author(s)

Duncan Murdoch

### See Also

`arrangeWindows`

### Examples

    getWindowsHandles()
    getWindowsHandles("all")

[Package utils version 3.5.1 Index]