GMImage.SetDefineSet
--------------------

Sets a define value.

| Component | Version | macOS | Windows | Linux | Server | iOS SDK |
|---|---|---|---|---|---|---|
| [GraphicsMagick](component_GraphicsMagick.md) | [2.0](newinversion20.md) | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |

MBS( "GMImage.SetDefineSet"; ImageRef; Magick; Key; Value ) 

**MBS**( **"GMImage.SetDefineSet";** /\* Sets a define value. \*/  
**$ImageRef**; /\* The image reference number.e.g. 1 \*/   
**$Magick**; /\* the magick value. \*/   
**$Key**; /\* A key name as string \*/   
**$Value**) /\* The value as boolean.e.g. 1 \*/ 

### Parameters

| Parameter | Description | Example |
|---|---|---|
| ImageRef | The image reference number. | 1 |
| Magick | the magick value. |  |
| Key | A key name as string |  |
| Value | The value as boolean. | 1 |

### Result

Returns "OK" on success.

### Description

Sets a define value.  
Tagged image format define. Similar to the get/setdefineValue() functions except that passing the flag value 'true' creates a value-less define with that format and key. Passing the flag value 'false' removes any existing matching definition. The method returns 'true' if a matching key exists, and 'false' if no matching key exists.  
### See also

- [GMImage.GetDefineSet](GMImageGetDefineSet.md)
- [GMImage.SetDefineValue](GMImageSetDefineValue.md)

This function checks for a license.

Created 18th August 2014 , last changed 17th July 2022

  
[GMImage.SetDebug](GMImageSetDebug.md) - [GMImage.SetDefineValue](GMImageSetDefineValue.md)

[HTML Version](GMImageSetDefineSet.shtml)