# TIeeeSymbol enumeration

*No description yet.*

```csharp
public enum TIeeeSymbol
```

**Namespace:** SCH · **Assembly:** Altium.SDK.Interfaces

## Values

| Name | Value | Description |
| --- | --- | --- |
| `eNoSymbol` | 0 |  |
| `eDot` | 1 |  |
| `eRightLeftSignalFlow` | 2 |  |
| `eClock` | 3 |  |
| `eActiveLowInput` | 4 |  |
| `eAnalogSignalIn` | 5 |  |
| `eNotLogicConnection` | 6 |  |
| `eShiftRight` | 7 |  |
| `ePostPonedOutput` | 8 |  |
| `eOpenCollector` | 9 |  |
| `eHiz` | 10 |  |
| `eHighCurrent` | 11 |  |
| `ePulse` | 12 |  |
| `eSchmitt` | 13 |  |
| `eDelay` | 14 |  |
| `eGroupLine` | 15 |  |
| `eGroupBin` | 16 |  |
| `eActiveLowOutput` | 17 |  |
| `ePiSymbol` | 18 |  |
| `eGreaterEqual` | 19 |  |
| `eLessEqual` | 20 |  |
| `eSigma` | 21 |  |
| `eOpenCollectorPullUp` | 22 |  |
| `eOpenEmitter` | 23 |  |
| `eOpenEmitterPullUp` | 24 |  |
| `eDigitalSignalIn` | 25 |  |
| `eAnd` | 26 |  |
| `eInvertor` | 27 |  |
| `eOr` | 28 |  |
| `eXor` | 29 |  |
| `eShiftLeft` | 30 |  |
| `eInputOutput` | 31 |  |
| `eOpenCircuitOutput` | 32 |  |
| `eLeftRightSignalFlow` | 33 |  |
| `eBidirectionalSignalFlow` | 34 |  |
| `eInternalPullUp` | 35 |  |
| `eInternalPullDown` | 36 |  |

## Returned by

[ISch_Pin.Symbol_Inner](https://altiumdeveloper.github.io/ad-sdk-docs/reference/sch/ISch_Pin.md#symbol_inner), [ISch_Pin.Symbol_InnerEdge](https://altiumdeveloper.github.io/ad-sdk-docs/reference/sch/ISch_Pin.md#symbol_inneredge), [ISch_Pin.Symbol_Outer](https://altiumdeveloper.github.io/ad-sdk-docs/reference/sch/ISch_Pin.md#symbol_outer), [ISch_Pin.Symbol_OuterEdge](https://altiumdeveloper.github.io/ad-sdk-docs/reference/sch/ISch_Pin.md#symbol_outeredge), [ISch_Symbol.Symbol](https://altiumdeveloper.github.io/ad-sdk-docs/reference/sch/ISch_Symbol.md#symbol)