# OpenParameters

## Content

# Type Alias: OpenParameters

```ts
type OpenParameters = object;
```

Image open parameters.

## Properties

### imageFormat?

```ts
optional imageFormat: 
  | ImageFormatCode
  | ImageFormatName
  | ImageFormatCode;
```

Image format type.
Use the imageFormat parameter when the viewer cannot automatically determine the image format.
Available image formats are: 1 = JPEG, 2 = PNG, 3 = TIFF, 4 = GIF, 5 = BMP, 6 = ICO, 7 = SVG, 8 = WEBP

#### Example

```javascript
// Open TIFF image from URL.
viewer.open("http://localhost/getimage?id=1&fmt=3", { imageFormat: 3 });
// or:
viewer.open("http://localhost/getimage?id=1&fmt=3", { imageFormat: "tiff" });
```

***

### imageDPI?

```ts
optional imageDPI: number;
```

Image DPI. DPI value is used to determine the quality and resolution of the image.

#### Default

```ts
96
```

#### Example

```javascript
viewer.open("sample.png", { imageDPI: 72 });
```

***

### fileName?

```ts
optional fileName: string;
```

Optional. Friendly file name.

#### Example

```javascript
viewer.open("/getSampleImage", { fileName: "sample.png" });
```