# Gmagick::setsize

(PECL gmagick >= Unknown)

Gmagick::setsize — Sets the size of the Gmagick object

### 说明

public Gmagick::setsize(int `$columns`, int `$rows`): Gmagick

Sets the size of the Gmagick object. Set it before you read a raw image format such as `Gmagick::COLORSPACE_RGB`, `Gmagick::COLORSPACE_GRAY`, or `Gmagick::COLORSPACE_CMYK`.

### 参数

`columns`
  The width in pixels.
`rows`
  The height in pixels.

### 返回值

The Gmagick object.

### 错误／异常

错误时抛出 GmagickException。

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