DisplayBitmap

DisplayBitmap class

A bitmap resource that can be used by the display pipeline (currently only in OpenGL display). Reuse DisplayBitmaps for drawing if possible; it is much more expensive to construct new DisplayBitmaps than it is to reuse existing DisplayBitmaps.

Derived Classes:

Namespace: Rhino.Display
DisplayBitmap: references

Constructors (2)

DisplayBitmap(Bitmap bitmap)

Constructs a DisplayBitmap from an existing bitmap.

DisplayBitmap(string path, Bitmap bitmap)

Creates a DisplayBitmap either from a path, or a bitmap. If the path is null, a random tag name will be used. If the bitmap is null, the bitmap will be loaded from the path. If both are null, the object is invalid. if both are valid objects, the bitmap will be used and it will be added to Rhino's bitmap cache with the path supplied. In other words, this is a way to add a bitmap from memory directly into Rhino's memory cache.

Properties (1)

Size

Size of the underlying bitmap image

Methods (6)

Dispose()

Actively reclaims unmanaged resources that this instance uses.

Dispose(bool disposing)

For derived class implementers.
This method is called with argument True when class user calls Dispose(), while with argument False when the Garbage Collector invokes the finalizer, or Finalize() method.
You must reclaim all used unmanaged resources in both cases, and can use this chance to call Dispose on disposable fields if the argument is true.
Also, you must call the base virtual method within your overriding method.

GetBlendModes(out BlendMode source, out BlendMode destination)

Gets the source and destination blend modes.

Load(string path)

Load a DisplayBitmap from and image file on disk or from URL. If path starts with http:// or https:// then an attempt is made to load the bitmap from an online resource

SetBlendFunction(BlendMode source, BlendMode destination)

Sets blending function used to determine how this bitmap is blended with the current frame buffer color. The default setting is SourceAlpha for source and OneMinusSourceAlpha for destination. See OpenGL's glBlendFunc for details.
http://www.opengl.org/sdk/docs/man/xhtml/glBlendFunc.xml

Update(Bitmap bitmap)

Update the image used for this DisplayBitmap

Nothing found