pangoMatrixTransformPixelRectangle {RGtk2} | R Documentation

## pangoMatrixTransformPixelRectangle

### Description

First transforms the `rect` using `matrix`, then calculates the bounding box of the transformed rectangle. The rectangle should be in device units (pixels).

### Usage

    pangoMatrixTransformPixelRectangle(object, rect)

### Arguments

``object`` | [`PangoMatrix`] a `PangoMatrix`, or `NULL`
``rect`` | [`PangoRectangle`] in/out bounding box in device units, or `NULL`

### Details

This function is useful for example when you want to draw a rotated `PangoLayout` to an image buffer, and want to know how large the image should be and how much you should shift the layout when rendering.

For better accuracy, you should use `pangoMatrixTransformRectangle` on original rectangle in Pango units and convert to pixels afterward using `pangoExtentsToPixels`'s first argument. Since 1.16

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.36.3 Index]