void gdk_window_input_shape_combine_region ( GdkWindow* window, const cairo_region_t* shape_region, gint offset_x, gint offset_y )
Like gdk_window_shape_combine_region(), but the shape applies
only to event handling. Mouse events which happen while
the pointer position corresponds to an unset bit in the
mask will be passed on the window below
An input shape is typically used with RGBA windows. The alpha channel of the window defines which pixels are invisible and allows for nicely antialiased borders, and the input shape controls where the window is “clickable”.
On the X11 platform, this requires version 1.1 of the shape extension.
On the Win32 platform, this functionality is not present and the function does nothing.
Available since: 2.10
Region of window to be non-transparent.
The data is owned by the caller of the method.
X position of
Y position of