pangoLayoutXyToIndex {RGtk2} | R Documentation

## pangoLayoutXyToIndex

### Description

Converts from X and Y position within a layout to the byte index to the character at that logical position. If the Y position is not inside the layout, the closest position is chosen (the position will be clamped inside the layout). If the X position is not within the layout, then the start or the end of the line is chosen as described for `pangoLayoutXToIndex()`. If either the X or Y positions were not inside the layout, then the function returns `FALSE`; on an exact hit, it returns `TRUE`.

### Usage

    pangoLayoutXyToIndex(object, x, y)

### Arguments

``object`` | [`PangoLayout`] a `PangoLayout`
``x`` | [integer] the X offset (in Pango units) from the left edge of the layout.
``y`` | [integer] the Y offset (in Pango units) from the top edge of the layout

### Value

A list containing the following elements:

`retval` | [logical] `TRUE` if the coordinates were inside text, `FALSE` otherwise.
``index`` | [integer] location to store calculated byte index
``trailing`` | [integer] location to store a integer indicating where in the grapheme the user clicked. It will either be zero, or the number of characters in the grapheme. 0 represents the trailing edge of the grapheme.

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.36.3 Index]