RGtk2: gdkWindowGetInternalPaintInfo – R documentation

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gdkWindowGetInternalPaintInfo

Description

If you bypass the GDK layer and use windowing system primitives to draw directly onto a GdkWindow, then you need to deal with two details: there may be an offset between GDK coordinates and windowing system coordinates, and GDK may have redirected drawing to a offscreen pixmap as the result of a gdkWindowBeginPaintRegion calls. This function allows retrieving the information you need to compensate for these effects.

Usage

gdkWindowGetInternalPaintInfo(object)

Arguments

object

a GdkWindow

Details

This function exposes details of the GDK implementation, and is thus likely to change in future releases of GDK.

Value

A list containing the following elements:

`real.drawable`	location to store the drawable to which drawing should be done. [ out ]
`x.offset`	location to store the X offset between coordinates in `window`, and the underlying window system primitive coordinates for `real.drawable`. [ out ]*
`y.offset`	location to store the Y offset between coordinates in `window`, and the underlying window system primitive coordinates for `real.drawable`. [ out ]*

Author(s)

Derived by RGtkGen from GTK+ documentation

RGtk2

R Bindings for Gtk 2.8.0 and Above

v2.20.36

GPL

Authors

Michael Lawrence <michafla@gene.com> and Duncan Temple Lang <duncan@wald.ucdavis.edu>

Initial release