query_child

Description:

public void query_child (Widget child, out int column, out int row, out int width, out int height)

Queries the attach points and spans of child inside the given `GtkGrid`.

this	a `GtkGrid`
child	a `GtkWidget` child of this
column	the column used to attach the left side of `child`
row	the row used to attach the top side of `child`
width	the number of columns `child` spans
height	the number of rows `child` spans