Pixbuf.this

gdkpixbuf Pixbuf Pixbuf

Creates a new pixbuf by loading an image from a file. The file format is detected automatically. If NULL is returned, then error will be set. Possible errors are in the GDK_PIXBUF_ERROR and G_FILE_ERROR domains. The image will be scaled to fit in the requested size, optionally preserving the image's aspect ratio.

When preserving the aspect ratio, a width of -1 will cause the image to be scaled to the exact given height, and a height of -1 will cause the image to be scaled to the exact given width. When not preserving aspect ratio, a width or height of -1 means to not scale the image at all in that dimension. Negative values for width and height are allowed since 2.8.

  1. this(GdkPixbuf* gdkPixbuf, bool ownedRef)
  2. this(GdkColorspace colorspace, bool hasAlpha, int bitsPerSample, int width, int height)
  3. this(Bytes data, GdkColorspace colorspace, bool hasAlpha, int bitsPerSample, int width, int height, int rowstride)
  4. this(char[] data, GdkColorspace colorspace, bool hasAlpha, int bitsPerSample, int width, int height, int rowstride, GdkPixbufDestroyNotify destroyFn, void* destroyFnData)
  5. this(string filename)
  6. this(string filename, int width, int height, bool preserveAspectRatio)
    class Pixbuf
    this
    (
    string filename
    ,
    int width
    ,
    int height
    ,
    bool preserveAspectRatio
    )
  7. this(string filename, int width, int height)
  8. this(ubyte[] data, bool copyPixels)
  9. this(InputStream stream, Cancellable cancellable)
  10. this(InputStream stream, int width, int height, bool preserveAspectRatio, Cancellable cancellable)
  11. this(AsyncResultIF asyncResult)
  12. this(string[] data)

Parameters

filename string

Name of file to load, in the GLib file name encoding

width int

The width the image should have or -1 to not constrain the width

height int

The height the image should have or -1 to not constrain the height

preserveAspectRatio bool

TRUE to preserve the image's aspect ratio

Return Value

A newly-created pixbuf with a reference count of 1, or NULL if any of several error conditions occurred: the file could not be opened, there was no loader for the file's format, there was not enough memory to allocate the image buffer, or the image file contained invalid data.

Throws

GException on failure. ConstructionException GTK+ fails to create the object.

Meta

Since

2.6

gdkpixbuf Pixbuf Pixbuf constructorsfunctionsstatic functionsvariables
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