[ Version ( deprecated = true , deprecated_since = "4.16" ) ]
public uint get_n_children ()
Warning: get_n_children is deprecated since 4.16.
Returns the number of children
GTK's new Vulkan-focused rendering does not support this feature. Use [GtkGLArea](../gtk4/class.GLArea.html) for OpenGL rendering.
| this |
a `GskRenderNode` for a gl shader |
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The number of children |