# ITimerManager interface

The `ITimerManager` interface manages the timing mechanisms efficiently in Altium Designer which registers timer objects and calls them when used. Normally a Timer object needs a window to run and responds to WM_Timer messages. This is for internal use.

```csharp
public interface ITimerManager
```

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

## Properties

| Property | Type | Access | Description |
| --- | --- | --- | --- |
| [HandlerEnabled](#handlerenabled) | `bool` | get; set | Internal Use only |

### HandlerEnabled

Internal Use only

```csharp
bool GetHandlerEnabled(uint argID);
void SetHandlerEnabled(uint argID, bool argEnabled);
```

**Type:** `bool` · **Access:** read/write · **Index:** `argID` (`uint`)

## Methods

| Method | Returns | Description |
| --- | --- | --- |
| [AddHandler](#addhandler) | `uint` | Internal Use only |
| [RemoveHandler](#removehandler) | `void` | Internal Use only |
| [SetGlobalEnabled](#setglobalenabled) | `void` | Internal Use only |

### AddHandler

Internal Use only

```csharp
uint AddHandler(ITimerHandler argHandler, uint argInterval, bool argEnabled);
uint AddHandler(object argHandler, uint argInterval, bool argEnabled);
```

| Parameter | Type | Passing |
| --- | --- | --- |
| `argHandler` | [ITimerHandler](https://altiumdeveloper.github.io/ad-sdk-docs/reference/dxp/ITimerHandler.md) | value |
| `argInterval` | `uint` | value |
| `argEnabled` | `bool` | value |

**Returns:** `uint`

The first overload is an extension method of `ITimerManagerHelper` (`using DXP;`) with typed parameters; the second is declared by the interface.

### RemoveHandler

Internal Use only

```csharp
void RemoveHandler(uint argID);
```

| Parameter | Type | Passing |
| --- | --- | --- |
| `argID` | `uint` | value |

**Returns:** nothing (`void`)

### SetGlobalEnabled

Internal Use only

```csharp
void SetGlobalEnabled(bool argEnabled);
```

| Parameter | Type | Passing |
| --- | --- | --- |
| `argEnabled` | `bool` | value |

**Returns:** nothing (`void`)

## Returned by

[IClient.GetTimerManager](https://altiumdeveloper.github.io/ad-sdk-docs/reference/dxp/IClient.md#gettimermanager)