A GraphNode is a container with potentially several input and output slots allowing connections between GraphNodes. Slots can have different, incompatible types. A GraphNode is a container. Each GraphNode can have several input and output slots, sometimes referred to as ports, allowing connections between GraphNodes. To add a slot to GraphNode, add any [Control]-derived child node to it. After adding at least one child to GraphNode new sections will be automatically created in the Inspector called 'Slot'. When 'Slot' is expanded you will see list with index number for each slot. You can click on each of them to expand further. In the Inspector you can enable (show) or disable (hide) slots. By default, all slots are disabled so you may not see any slots on your GraphNode initially. You can assign a type to each slot. Only slots of the same type will be able to connect to each other. You can also assign colors to slots. A tuple of input and output slots is defined for each GUI element included in the GraphNode. Input connections are on the left and output connections are on the right side of GraphNode. Only enabled slots are counted as connections. Disables all input and output slots of the GraphNode. Removes all OpenType features. Disables input and output slot whose index is [code]idx[/code]. Returns the [Color] of the input connection [code]idx[/code]. Returns the number of enabled input slots (connections) to the GraphNode. Returns the position of the input connection [code]idx[/code]. Returns the type of the input connection [code]idx[/code]. Returns the [Color] of the output connection [code]idx[/code]. Returns the number of enabled output slots (connections) of the GraphNode. Returns the position of the output connection [code]idx[/code]. Returns the type of the output connection [code]idx[/code]. Returns OpenType feature [code]tag[/code]. Returns the left (input) [Color] of the slot [code]idx[/code]. Returns the right (output) [Color] of the slot [code]idx[/code]. Returns the left (input) type of the slot [code]idx[/code]. Returns the right (output) type of the slot [code]idx[/code]. Returns [code]true[/code] if left (input) side of the slot [code]idx[/code] is enabled. Returns [code]true[/code] if right (output) side of the slot [code]idx[/code] is enabled. Sets OpenType feature [code]tag[/code]. More info: [url=https://docs.microsoft.com/en-us/typography/opentype/spec/featuretags]OpenType feature tags[/url]. Sets properties of the slot with ID [code]idx[/code]. If [code]enable_left[/code]/[code]right[/code], a port will appear and the slot will be able to be connected from this side. [code]type_left[/code]/[code]right[/code] is an arbitrary type of the port. Only ports with the same type values can be connected. [code]color_left[/code]/[code]right[/code] is the tint of the port's icon on this side. [code]custom_left[/code]/[code]right[/code] is a custom texture for this side's port. [b]Note:[/b] This method only sets properties of the slot. To create the slot, add a [Control]-derived child to the GraphNode. Individual properties can be set using one of the [code]set_slot_*[/code] methods. You must enable at least one side of the slot to do so. Sets the [Color] of the left (input) side of the slot [code]idx[/code] to [code]color_left[/code]. Sets the [Color] of the right (output) side of the slot [code]idx[/code] to [code]color_right[/code]. Toggles the left (input) side of the slot [code]idx[/code]. If [code]enable_left[/code] is [code]true[/code], a port will appear on the left side and the slot will be able to be connected from this side. Toggles the right (output) side of the slot [code]idx[/code]. If [code]enable_right[/code] is [code]true[/code], a port will appear on the right side and the slot will be able to be connected from this side. Sets the left (input) type of the slot [code]idx[/code] to [code]type_left[/code]. Sets the right (output) type of the slot [code]idx[/code] to [code]type_right[/code]. If [code]true[/code], the GraphNode is a comment node. Language code used for line-breaking and text shaping algorithms, if left empty current locale is used instead. Sets the overlay shown above the GraphNode. See [enum Overlay]. The offset of the GraphNode, relative to the scroll offset of the [GraphEdit]. [b]Note:[/b] You cannot use position offset directly, as [GraphEdit] is a [Container]. If [code]true[/code], the user can resize the GraphNode. [b]Note:[/b] Dragging the handle will only emit the [signal resize_request] signal, the GraphNode needs to be resized manually. If [code]true[/code], the GraphNode is selected. If [code]true[/code], the close button will be visible. [b]Note:[/b] Pressing it will only emit the [signal close_request] signal, the GraphNode needs to be removed manually. Base text writing direction. The text displayed in the GraphNode's title bar. Emitted when the GraphNode is requested to be closed. Happens on clicking the close button (see [member show_close]). Emitted when the GraphNode is dragged. Emitted when the GraphNode is moved. Emitted when the GraphNode is requested to be displayed over other ones. Happens on focusing (clicking into) the GraphNode. Emitted when the GraphNode is requested to be resized. Happens on dragging the resizer handle (see [member resizable]). Emitted when any GraphNode's slot is updated. No overlay is shown. Show overlay set in the [theme_item breakpoint] theme property. Show overlay set in the [theme_item position] theme property. The background used when [member overlay] is set to [constant OVERLAY_BREAKPOINT]. The icon for the close button, visible when [member show_close] is enabled. The color modulation applied to the close button icon. The vertical offset of the close button. The [StyleBox] used when [member comment] is enabled. The [StyleBox] used when [member comment] is enabled and the [GraphNode] is focused. The default background for [GraphNode]. The icon used for representing ports. Horizontal offset for the ports. The background used when [member overlay] is set to [constant OVERLAY_POSITION]. The icon used for resizer, visible when [member resizable] is enabled. The color modulation applied to the resizer icon. The background used when the [GraphNode] is selected. The vertical distance between ports. Color of the title text. Font used for the title text. Vertical offset of the title text.