Twain.SetContrast
-----------------

Sets which contrast value to use.

| Component | Version | macOS | Windows | Linux | Server | iOS SDK |
|---|---|---|---|---|---|---|
| [Twain](component_Twain.md) | [3.5](newinversion35.md) | ✅ Yes | ✅ Yes | ❌ No | ❌ No | ❌ No |

MBS( "Twain.SetContrast"; Value ) 

**MBS**( **"Twain.SetContrast";** /\* Sets which contrast value to use. \*/  
**$Value**) /\* The new brightness setting.e.g. 0 \*/ 

### Parameters

| Parameter | Description | Example |
|---|---|---|
| Value | The new brightness setting. | 0 |

### Result

Returns OK.

### Description

Sets which contrast value to use.  
Scale the values available internally into a homogeneous range between -1000 and 1000. Make sure that a '0' value is available as the Current value when the Source starts up. If the Source's ± range is asymmetric about the '0' value, set range maxima to ±1000 and scale homogeneously from the '0' value in each direction. This will yield a positive range whose step size differs from the negative range's step size.  
Plugin uses value -10000 for undefined/default.  
### See also

- [Twain.GetContrast](TwainGetContrast.md)

This function is free to use.

Created 18th August 2014 , last changed 18th August 2014

  
[Twain.SetCompressionQuality](TwainSetCompressionQuality.md) - [Twain.SetDefaultDSIdentity](TwainSetDefaultDSIdentity.md)

[HTML Version](TwainSetContrast.shtml)