Class: Wx::GraphicsBitmap

Inherits:

GraphicsObject

• Object
• Object
• GraphicsObject
• Wx::GraphicsBitmap

Defined in:

lib/wx/doc/gen/graphics_object.rb

Overview

Represents a bitmap.

The objects of this class are not created directly but only via GraphicsContext or GraphicsRenderer CreateBitmap(), CreateBitmapFromImage() or CreateSubBitmap() methods. They can subsequently be used with Wx::GraphicsContext#draw_bitmap. The only other operation is testing for the bitmap validity which can be performed using Wx::GraphicsObject#is_null method inherited from the base class.

Requires:

• USE_GRAPHICS_CONTEXT

Instance Method Summary

• #convert_to_image ⇒ Wx::Image

  Return the contents of this bitmap as Image.

• #initialize ⇒ Wx::GraphicsBitmap constructor

  Default constructor creates an invalid bitmap.

Methods inherited from GraphicsObject

#get_renderer, #is_null

Methods inherited from Object

#clone, #dup, #is_same_as, #un_share

Constructor Details

#initialize ⇒ Wx::GraphicsBitmap

Default constructor creates an invalid bitmap.

# File 'lib/wx/doc/gen/graphics_object.rb', line 512

def initialize; end

Instance Method Details

#convert_to_image ⇒ Wx::Image

Return the contents of this bitmap as Image.

Using this method is more efficient than converting Wx::GraphicsBitmap to Bitmap first and then to Image and can be useful if, for example, you want to save Wx::GraphicsBitmap as a disk file in a format not directly supported by Bitmap. Invalid image is returned if the bitmap is invalid.

Returns:

• (Wx::Image)

# File 'lib/wx/doc/gen/graphics_object.rb', line 519

def convert_to_image; end