Window.coordsToParent

Transforms window coordinates from a child window to its parent window, where the parent window is the normal parent as returned by gdk_window_get_parent() for normal windows, and the window's embedder as returned by gdk_offscreen_window_get_embedder() for offscreen windows.

For normal windows, calling this function is equivalent to adding the return values of gdk_window_get_position() to the child coordinates. For offscreen windows however (which can be arbitrarily transformed), this function calls the GdkWindow::to-embedder: signal to translate the coordinates.

You should always use this function when writing generic code that walks up a window hierarchy.

See also: gdk_window_coords_from_parent()

class Window
void
coordsToParent
(
double x
,
double y
,
out double parentX
,
out double parentY
)

Parameters

x double

X coordinate in child’s coordinate system

y double

Y coordinate in child’s coordinate system

parentX double

return location for X coordinate in parent’s coordinate system, or %NULL

parentY double

return location for Y coordinate in parent’s coordinate system, or %NULL

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Since

2.22