Creates a new #GdkPixbuf structure and allocates a buffer for it. The buffer has an optimal rowstride. Note that the buffer is not cleared; you will have to fill it completely yourself. %NULL if not enough memory could be allocated for the image buffer.

A newly-created #GdkPixbuf with a reference count of 1, or

Color space for image Whether the image should have transparency information Number of bits per color sample Width of image in pixels, must be > 0 Height of image in pixels, must be > 0 Creates a new pixbuf which represents a sub-region of original pixbuf, so writing to one affects both. The new pixbuf holds a reference to @src_pixbuf, so is finalized.

a new pixbuf

a #GdkPixbuf X coord in @src_pixbuf Y coord in @src_pixbuf width of region in @src_pixbuf height of region in @src_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. 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.

A newly-created pixbuf with a reference count of 1, or %NULL if

Name of file to load, in the GLib file name encoding Creates a new pixbuf by loading an image from a file. The file format is detected automatically. If %NULL is returned, then #G_FILE_ERROR domains. The image will be scaled to fit in the requested size, preserving the image's aspect ratio. Note that the returned pixbuf may be smaller than @width x @height, if the aspect ratio requires it. To load and image at the requested size, regardless of aspect ratio, use gdk_pixbuf_new_from_file_at_scale(). %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.

A newly-created pixbuf with a reference count of 1, or

Name of file to load, in the GLib file name encoding The width the image should have or -1 to not constrain the width The height the image should have or -1 to not constrain the height 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. 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.

A newly-created pixbuf with a reference count of 1, or %NULL

Name of file to load, in the GLib file name encoding The width the image should have or -1 to not constrain the width The height the image should have or -1 to not constrain the height %TRUE to preserve the image's aspect ratio Creates a new #GdkPixbuf out of in-memory image data. Currently only RGB images with 8 bits per sample are supported.

A newly-created #GdkPixbuf structure with a reference count of 1.

Image data in 8-bit/sample packed format Colorspace for the image data Whether the data has an opacity channel Number of bits per sample Width of the image in pixels, must be > 0 Height of the image in pixels, must be > 0 Distance in bytes between row starts Function used to free the data when the pixbuf's reference count drops to zero, or %NULL if the data should not be freed Closure data to pass to the destroy notification function Creates a new pixbuf by parsing XPM data in memory. This data is commonly the result of including an XPM file into a program's C source.

A newly-created pixbuf with a reference count of 1.

Pointer to inline XPM data. Create a #GdkPixbuf from a flat representation that is suitable for storing as inline data in a program. This is useful if you want to ship a program with images, but don't want to depend on any external files. GTK+ ships with a program called <command>gdk-pixbuf-csource</command> which allows for conversion of #GdkPixbufs into such a inline representation. In almost all cases, you should pass the <option>--raw</option> flag to <command>gdk-pixbuf-csource</command>. A sample invocation would be: <informalexample><programlisting> gdk-pixbuf-csource --raw --name=myimage_inline myimage.png </programlisting></informalexample> For the typical case where the inline pixbuf is read-only static data, you don't need to copy the pixel data unless you intend to write to it, so you can pass %FALSE for @copy_pixels. (If you pass <option>--rle</option> to <command>gdk-pixbuf-csource</command>, a copy will be made even if @copy_pixels is %FALSE, so using this option is generally a bad idea.) If you create a pixbuf from const inline data compiled into your program, it's probably safe to ignore errors and disable length checks, since things will always succeed: <informalexample><programlisting> pixbuf = gdk_pixbuf_new_from_inline (-1, myimage_inline, FALSE, NULL); </programlisting></informalexample> For non-const inline data, you could get out of memory. For untrusted inline data located at runtime, you could have corrupt inline data in addition. count of 1, or %NULL if an error occurred.

A newly-created #GdkPixbuf structure with a reference,

Length in bytes of the @data argument or -1 to disable length checks Byte data containing a serialized #GdkPixdata structure Whether to copy the pixel data, or use direct pointers Creates a new pixbuf by loading an image from an input stream. The file format is detected automatically. If %NULL is returned, then from another thread. If the operation was cancelled, the error %GIO_ERROR_CANCELLED will be returned. Other possible errors are in the #GDK_PIXBUF_ERROR and %G_IO_ERROR domains. The stream is not closed. not supported, there was not enough memory to allocate the image buffer, the stream contained invalid data, or the operation was cancelled.

A newly-created pixbuf, or %NULL if any of several error

a #GInputStream to load the pixbuf from optional #GCancellable object, %NULL to ignore Creates a new pixbuf by loading an image from an input stream. The file format is detected automatically. If %NULL is returned, then from another thread. If the operation was cancelled, the error %GIO_ERROR_CANCELLED will be returned. Other possible errors are in the #GDK_PIXBUF_ERROR and %G_IO_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 The stream is not closed. not supported, there was not enough memory to allocate the image buffer, the stream contained invalid data, or the operation was cancelled.

A newly-created pixbuf, or %NULL if any of several error

a #GInputStream to load the pixbuf from The width the image should have or -1 to not constrain the width The height the image should have or -1 to not constrain the height %TRUE to preserve the image's aspect ratio optional #GCancellable object, %NULL to ignore Obtains the available information about the image formats supported by GdkPixbuf. image formats. The list should be freed when it is no longer needed, but the structures themselves are owned by #GdkPixbuf and should not be freed.

A list of #GdkPixbufFormats describing the supported

Parses an image file far enough to determine its format and size. or %NULL if the image format wasn't recognized. The return value is owned by GdkPixbuf and should not be freed.

A #GdkPixbufFormat describing the image format of the file

The name of the file to identify. Return location for the width of the image, or %NULL Return location for the height of the image, or %NULL Converts a #GdkPixdata to a #GdkPixbuf. If @copy_pixels is %TRUE or if the pixel data is run-length-encoded, the pixel data is copied into newly-allocated memory; otherwise it is reused.

a new #GdkPixbuf.

a #GdkPixdata to convert into a #GdkPixbuf. whether to copy raw pixel data; run-length encoded pixel data is always copied. Adds a reference to a pixbuf.

The same as the @pixbuf argument.

Removes a reference from a pixbuf.

Queries the color space of a pixbuf.

Color space.

Queries the number of channels of a pixbuf.

Number of channels.

Queries whether a pixbuf has an alpha channel (opacity information).

%TRUE if it has an alpha channel, %FALSE otherwise.

Queries the number of bits per color sample in a pixbuf.

Number of bits per color sample.

Queries a pointer to the pixel data of a pixbuf. for information about how the pixel data is stored in memory.

A pointer to the pixbuf's pixel data. Please see <xref linkend="image-data"/>

Queries the width of a pixbuf.

Width in pixels.

Queries the height of a pixbuf.

Height in pixels.

Queries the rowstride of a pixbuf, which is the number of bytes between the start of a row and the start of the next row.

Distance between row starts.

Creates a new #GdkPixbuf with a copy of the information in the specified not enough memory could be allocated.

A newly-created pixbuf with a reference count of 1, or %NULL if

Clears a pixbuf to the given RGBA value, converting the RGBA value into the pixbuf's pixel format. The alpha will be ignored if the pixbuf doesn't have an alpha channel.

RGBA pixel to clear to (0xffffffff is opaque white, 0x00000000 transparent black) Saves pixbuf to a file in format @type. By default, "jpeg", "png", "ico" and "bmp" are possible file formats to save in, but more formats may be installed. The list of all writable formats can be determined in the following way: |[ void add_if_writable (GdkPixbufFormat *data, GSList **list) { if (gdk_pixbuf_format_is_writable (data)) *list = g_slist_prepend (*list, data); } GSList *formats = gdk_pixbuf_get_formats (); GSList *writable_formats = NULL; g_slist_foreach (formats, add_if_writable, &writable_formats); g_slist_free (formats); ]| If @error is set, %FALSE will be returned. Possible errors include those in the #GDK_PIXBUF_ERROR domain and those in the #G_FILE_ERROR domain. The variable argument list should be %NULL-terminated; if not empty, it should contain pairs of strings that modify the save parameters. For example: <informalexample><programlisting> gdk_pixbuf_save (pixbuf, handle, "jpeg", &error, "quality", "100", NULL); </programlisting></informalexample> Currently only few parameters exist. JPEG images can be saved with a "quality" parameter; its value should be in the range [0,100]. Text chunks can be attached to PNG images by specifying parameters of the form "tEXt::key", where key is an ASCII string of length 1-79. The values are UTF-8 encoded strings. The PNG compression level can be specified using the "compression" parameter; it's value is in an integer in the range of [0,9]. ICC color profiles can also be embedded into PNG and TIFF images. The "icc-profile" value should be the complete ICC profile encoded into base64. <informalexample><programlisting> gchar *contents; gchar *contents_encode; gsize length; g_file_get_contents ("/home/hughsie/.color/icc/L225W.icm", &contents, &length, NULL); contents_encode = g_base64_encode ((const guchar *) contents, length); gdk_pixbuf_save (pixbuf, handle, "png", &error, "icc-profile", contents_encode, NULL); </programlisting></informalexample> TIFF images recognize a "compression" option which acceps an integer value. Among the codecs are 1 None, 2 Huffman, 5 LZW, 7 JPEG and 8 Deflate, see the libtiff documentation and tiff.h for all supported codec values. ICO images can be saved in depth 16, 24, or 32, by using the "depth" parameter. When the ICO saver is given "x_hot" and "y_hot" parameters, it produces a CUR instead of an ICO.

whether an error was set

name of file to save. name of file format. return location for error, or %NULL Saves pixbuf to a file in @type, which is currently "jpeg", "png", "tiff", "ico" or "bmp". If @error is set, %FALSE will be returned. See gdk_pixbuf_save () for more details.

whether an error was set

name of file to save. name of file format. name of options to set, %NULL-terminated values for named options Saves pixbuf in format @type by feeding the produced data to a callback. Can be used when you want to store the image to something other than a file, such as an in-memory buffer or a socket. If @error is set, %FALSE will be returned. Possible errors include those in the #GDK_PIXBUF_ERROR domain and whatever the save function generates. See gdk_pixbuf_save() for more details.

whether an error was set

a function that is called to save each block of data that the save routine generates. user data to pass to the save function. name of file format. return location for error, or %NULL Saves pixbuf to a callback in format @type, which is currently "jpeg", "png", "tiff", "ico" or "bmp". If @error is set, %FALSE will be returned. See gdk_pixbuf_save_to_callback () for more details.

whether an error was set

a function that is called to save each block of data that the save routine generates. user data to pass to the save function. name of file format. name of options to set, %NULL-terminated values for named options Saves pixbuf to a new buffer in format @type, which is currently "jpeg", "png", "tiff", "ico" or "bmp". This is a convenience function that uses gdk_pixbuf_save_to_callback() to do the real work. Note that the buffer is not nul-terminated and may contain embedded nuls. If @error is set, %FALSE will be returned and @buffer will be set to %NULL. Possible errors include those in the #GDK_PIXBUF_ERROR domain. See gdk_pixbuf_save() for more details.

whether an error was set

location to receive a pointer to the new buffer. location to receive the size of the new buffer. name of file format. return location for error, or %NULL Saves pixbuf to a new buffer in format @type, which is currently "jpeg", "tiff", "png", "ico" or "bmp". See gdk_pixbuf_save_to_buffer() for more details.

whether an error was set

location to receive a pointer to the new buffer. location to receive the size of the new buffer. name of file format. name of options to set, %NULL-terminated values for named options

Takes an existing pixbuf and adds an alpha channel to it. If the existing pixbuf already had an alpha channel, the channel values are copied from the original; otherwise, the alpha channel is initialized to 255 (full opacity). If @substitute_color is %TRUE, then the color specified by (@r, @g, @b) will be assigned zero opacity. That is, if you pass (255, 255, 255) for the substitute color, all white pixels will become fully transparent.

A newly-created pixbuf with a reference count of 1.

Whether to set a color to zero opacity. If this is %FALSE, then the (@r, @g, @b) arguments will be ignored. Red value to substitute. Green value to substitute. Blue value to substitute. Copies a rectangular area from @src_pixbuf to @dest_pixbuf. Conversion of pixbuf formats is done automatically. If the source rectangle overlaps the destination rectangle on the same pixbuf, it will be overwritten during the copy operation. Therefore, you can not use this function to scroll a pixbuf.

Source X coordinate within @src_pixbuf. Source Y coordinate within @src_pixbuf. Width of the area to copy. Height of the area to copy. Destination pixbuf. X coordinate within @dest_pixbuf. Y coordinate within @dest_pixbuf. Modifies saturation and optionally pixelates @src, placing the result in saturation is reduced (the image turns toward grayscale); if greater than 1.0, saturation is increased (the image gets more vivid colors). If @pixelate is %TRUE, then pixels are faded in a checkerboard pattern to create a pixelated image. @src and @dest must have the same image format, size, and rowstride.

place to write modified version of @src saturation factor whether to pixelate Takes an existing pixbuf and checks for the presence of an associated "orientation" option, which may be provided by the jpeg loader (which reads the exif orientation tag) or the tiff loader (which reads the tiff orientation tag, and compensates it for the partial transforms performed by libtiff). If an orientation option/tag is present, the appropriate transform will be performed so that the pixbuf is oriented correctly. input pixbuf (with an increased reference count).

A newly-created pixbuf, or a reference to the

Looks up @key in the list of options that may have been attached to the function using gdk_pixbuf_set_option(). For instance, the ANI loader provides "Title" and "Artist" options. The ICO, XBM, and XPM loaders provide "x_hot" and "y_hot" hot-spot options for cursor definitions. The PNG loader provides the tEXt ancillary chunk key/value pairs as options. Since 2.12, the TIFF and JPEG loaders return an "orientation" option string that corresponds to the embedded TIFF/Exif orientation tag (if present). string that should not be freed or %NULL if @key was not found.

the value associated with @key. This is a nul-terminated

a nul-terminated string. Creates a transformation of the source image @src by scaling by then renders the rectangle (@dest_x, @dest_y, @dest_width, replacing the previous contents. Try to use gdk_pixbuf_scale_simple() first, this function is the industrial-strength power tool you can fall back to if gdk_pixbuf_scale_simple() isn't powerful enough. If the source rectangle overlaps the destination rectangle on the same pixbuf, it will be overwritten during the scaling which results in rendering artifacts.

the #GdkPixbuf into which to render the results the left coordinate for region to render the top coordinate for region to render the width of the region to render the height of the region to render the offset in the X direction (currently rounded to an integer) the offset in the Y direction (currently rounded to an integer) the scale factor in the X direction the scale factor in the Y direction the interpolation type for the transformation. Creates a transformation of the source image @src by scaling by This gives an image in the coordinates of the destination pixbuf. The rectangle (@dest_x, @dest_y, @dest_width, @dest_height) is then composited onto the corresponding rectangle of the original destination image. When the destination rectangle contains parts not in the source image, the data at the edges of the source image is replicated to infinity. <figure id="pixbuf-composite-diagram"> <title>Compositing of pixbufs</title> <graphic fileref="composite.png" format="PNG"/> </figure>

the #GdkPixbuf into which to render the results the left coordinate for region to render the top coordinate for region to render the width of the region to render the height of the region to render the offset in the X direction (currently rounded to an integer) the offset in the Y direction (currently rounded to an integer) the scale factor in the X direction the scale factor in the Y direction the interpolation type for the transformation. overall alpha for source image (0..255) the X offset for the checkboard (origin of checkboard is at -@check_x, -@check_y) the Y offset for the checkboard the size of checks in the checkboard (must be a power of two) the color of check at upper left the color of the other check Create a new #GdkPixbuf containing a copy of @src scaled to should be #GDK_INTERP_NEAREST if you want maximum speed (but when scaling down #GDK_INTERP_NEAREST is usually unusably ugly). The default @interp_type should be #GDK_INTERP_BILINEAR which offers reasonable quality and speed. You can scale a sub-portion of @src by creating a sub-pixbuf pointing into @src; see gdk_pixbuf_new_subpixbuf(). For more complicated scaling/compositing see gdk_pixbuf_scale() and gdk_pixbuf_composite(). allocated for it.

the new #GdkPixbuf, or %NULL if not enough memory could be

the width of destination image the height of destination image the interpolation type for the transformation. Creates a new #GdkPixbuf by scaling @src to @dest_width x allocated for it.

the new #GdkPixbuf, or %NULL if not enough memory could be

the width of destination image the height of destination image the interpolation type for the transformation. overall alpha for source image (0..255) the size of checks in the checkboard (must be a power of two) the color of check at upper left the color of the other check Rotates a pixbuf by a multiple of 90 degrees, and returns the result in a new pixbuf. allocated for it.

the new #GdkPixbuf, or %NULL if not enough memory could be

the angle to rotate by Flips a pixbuf horizontally or vertically and returns the result in a new pixbuf. allocated for it.

the new #GdkPixbuf, or %NULL if not enough memory could be

%TRUE to flip horizontally, %FALSE to flip vertically Attaches a key/value pair as an option to a #GdkPixbuf. If %key already exists in the list of options attached to @pixbuf, the new value is ignored and %FALSE is returned.

%TRUE on success.

a nul-terminated string. a nul-terminated string. The number of bits per sample. Currently only 8 bit per sample are supported. The number of samples per pixel. Currently, only 3 or 4 samples per pixel are supported. The number of bytes between the start of a row and the start of the next row. This number must (obviously) be at least as large as the width of the pixbuf. Creates a new animation by loading it from a file. The file format is detected automatically. If the file's format does not support multi-frame images, then an animation with a single frame will be created. Possible errors are in the #GDK_PIXBUF_ERROR and #G_FILE_ERROR domains. 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.

A newly-created animation with a reference count of 1, or %NULL

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

If you load a file with gdk_pixbuf_animation_new_from_file() and it turns out to be a plain, unanimated image, then this function will return %TRUE. Use gdk_pixbuf_animation_get_static_image() to retrieve the image.

%TRUE if the "animation" was really just an image

If an animation is really just a plain image (has only one frame), this function returns that image. If the animation is an animation, this function returns a reasonable thing to display as a static unanimated image, which might be the first frame, or something more sophisticated. If an animation hasn't loaded any frames yet, this function will return %NULL.

unanimated image representing the animation

Get an iterator for displaying an animation. The iterator provides the frames that should be displayed at a given time. It should be freed after use with g_object_unref(). marks the beginning of animation playback. After creating an iterator, you should immediately display the pixbuf returned by gdk_pixbuf_animation_iter_get_pixbuf(). Then, you should install a timeout (with g_timeout_add()) or by some other mechanism ensure that you'll update the image after gdk_pixbuf_animation_iter_get_delay_time() milliseconds. Each time the image is updated, you should reinstall the timeout with the new, possibly-changed delay time. As a shortcut, if @start_time is %NULL, the result of g_get_current_time() will be used automatically. To update the image (i.e. possibly change the result of gdk_pixbuf_animation_iter_get_pixbuf() to a new frame of the animation), call gdk_pixbuf_animation_iter_advance(). If you're using #GdkPixbufLoader, in addition to updating the image after the delay time, you should also update it whenever you receive the area_updated signal and gdk_pixbuf_animation_iter_on_currently_loading_frame() returns %TRUE. In this case, the frame currently being fed into the loader has received new data, so needs to be refreshed. The delay time for a frame may also be modified after an area_updated signal, for example if the delay time for a frame is encoded in the data after the frame itself. So your timeout should be reinstalled after any area_updated signal. A delay time of -1 is possible, indicating "infinite."

an iterator to move over the animation

time when the animation starts playing

Adds a reference to an animation.

The same as the @animation argument.

Removes a reference from an animation.

Queries the width of the bounding box of a pixbuf animation.

Width of the bounding box of the animation.

Queries the height of the bounding box of a pixbuf animation.

Height of the bounding box of the animation.

%TRUE if the "animation" was really just an image

unanimated image representing the animation

an iterator to move over the animation

time when the animation starts playing

%TRUE if the "animation" was really just an image

unanimated image representing the animation

an iterator to move over the animation

time when the animation starts playing

Gets the number of milliseconds the current pixbuf should be displayed, or -1 if the current pixbuf should be displayed forever. g_timeout_add() conveniently takes a timeout in milliseconds, so you can use a timeout to schedule the next update.

delay time in milliseconds (thousandths of a second)

Gets the current pixbuf which should be displayed; the pixbuf will be the same size as the animation itself (gdk_pixbuf_animation_get_width(), gdk_pixbuf_animation_get_height()). This pixbuf should be displayed for gdk_pixbuf_animation_iter_get_delay_time() milliseconds. The caller of this function does not own a reference to the returned pixbuf; the returned pixbuf will become invalid when the iterator advances to the next frame, which may happen anytime you call gdk_pixbuf_animation_iter_advance(). Copy the pixbuf to keep it (don't just add a reference), as it may get recycled as you advance the iterator.

the pixbuf to be displayed

Used to determine how to respond to the area_updated signal on #GdkPixbufLoader when loading an animation. area_updated is emitted for an area of the frame currently streaming in to the loader. So if you're on the currently loading frame, you need to redraw the screen for the updated area.

%TRUE if the frame we're on is partially loaded, or the last frame

Possibly advances an animation to a new frame. Chooses the frame based on the start time passed to gdk_pixbuf_animation_get_iter(). must be greater than or equal to the time passed to gdk_pixbuf_animation_get_iter(), and must increase or remain unchanged each time gdk_pixbuf_animation_iter_get_pixbuf() is called. That is, you can't go backward in time; animations only play forward. As a shortcut, pass %NULL for the current time and g_get_current_time() will be invoked on your behalf. So you only need to explicitly pass at double speed. If this function returns %FALSE, there's no need to update the animation display, assuming the display had been rendered prior to advancing; if %TRUE, you need to call gdk_animation_iter_get_pixbuf() and update the display with the new pixbuf.

%TRUE if the image may need updating

current time

delay time in milliseconds (thousandths of a second)

the pixbuf to be displayed

%TRUE if the frame we're on is partially loaded, or the last frame

%TRUE if the image may need updating

current time

delay time in milliseconds (thousandths of a second)

the pixbuf to be displayed

%TRUE if the frame we're on is partially loaded, or the last frame

%TRUE if the image may need updating

current time

Returns the name of the format.

the name of the format.

Returns a description of the format.

a description of the format.

Returns the mime types supported by the format. g_strfreev() when it is no longer needed.

a %NULL-terminated array of mime types which must be freed with

Returns the filename extensions typically used for files in the given format. freed with g_strfreev() when it is no longer needed.

a %NULL-terminated array of filename extensions which must be

Returns whether pixbufs can be saved in the given format.

whether pixbufs can be saved in the given format.

Returns whether this image format is scalable. If a file is in a scalable format, it is preferable to load it at the desired size, rather than loading it at the default size and scaling the resulting pixbuf to the desired size.

whether this image format is scalable.

Returns whether this image format is disabled. See gdk_pixbuf_format_set_disabled().

whether this image format is disabled.

Disables or enables an image format. If a format is disabled, gdk-pixbuf won't use the image loader for this format to load images. Applications can use this to avoid using image loaders with an inappropriate license, see gdk_pixbuf_format_get_license().

%TRUE to disable the format @format Returns information about the license of the image loader for the format. The returned string should be a shorthand for a wellknown license, e.g. "LGPL", "GPL", "QPL", "GPL/QPL", or "other" to indicate some other license. This string should be freed with g_free() when it's no longer needed.

a string describing the license of @format.

Creates a new pixbuf loader object.

A newly-created pixbuf loader.

Creates a new pixbuf loader object that always attempts to parse image data as if it were an image of type @image_type, instead of identifying the type automatically. Useful if you want an error if the image isn't the expected type, for loading image formats that can't be reliably identified by looking at the data, or if the user manually forces a specific type. The list of supported image formats depends on what image loaders are installed, but typically "png", "jpeg", "gif", "tiff" and "xpm" are among the supported formats. To obtain the full list of supported image formats, call gdk_pixbuf_format_get_name() on each of the #GdkPixbufFormat structs returned by gdk_pixbuf_get_formats().

A newly-created pixbuf loader.

name of the image format to be loaded with the image Creates a new pixbuf loader object that always attempts to parse image data as if it were an image of mime type @mime_type, instead of identifying the type automatically. Useful if you want an error if the image isn't the expected mime type, for loading image formats that can't be reliably identified by looking at the data, or if the user manually forces a specific mime type. The list of supported mime types depends on what image loaders are installed, but typically "image/png", "image/jpeg", "image/gif", "image/tiff" and "image/x-xpixmap" are among the supported mime types. To obtain the full list of supported mime types, call gdk_pixbuf_format_get_mime_types() on each of the #GdkPixbufFormat structs returned by gdk_pixbuf_get_formats().

A newly-created pixbuf loader.

the mime type to be loaded Causes the image to be scaled while it is loaded. The desired image size can be determined relative to the original size of the image by calling gdk_pixbuf_loader_set_size() from a signal handler for the ::size-prepared signal. Attempts to set the desired image size are ignored after the emission of the ::size-prepared signal.

The desired width of the image being loaded. The desired height of the image being loaded. This will cause a pixbuf loader to parse the next @count bytes of an image. It will return %TRUE if the data was loaded successfully, and %FALSE if an error occurred. In the latter case, the loader will be closed, and will not accept further writes. If %FALSE is returned, @error will be set to an error from the #GDK_PIXBUF_ERROR or #G_FILE_ERROR domains. cannot parse the buffer.

%TRUE if the write was successful, or %FALSE if the loader

Pointer to image data. Length of the @buf buffer in bytes. Queries the #GdkPixbuf that a pixbuf loader is currently creating. In general it only makes sense to call this function after the "area-prepared" signal has been emitted by the loader; this means that enough data has been read to know the size of the image that will be allocated. If the loader has not received enough data via gdk_pixbuf_loader_write(), then this function returns %NULL. The returned pixbuf will be the same in all future calls to the loader, so simply calling g_object_ref() should be sufficient to continue using it. Additionally, if the loader is an animation, it will return the "static image" of the animation (see gdk_pixbuf_animation_get_static_image()). enough data has been read to determine how to create the image buffer.

The #GdkPixbuf that the loader is creating, or %NULL if not

Queries the #GdkPixbufAnimation that a pixbuf loader is currently creating. In general it only makes sense to call this function after the "area-prepared" signal has been emitted by the loader. If the loader doesn't have enough bytes yet (hasn't emitted the "area-prepared" signal) this function will return %NULL.

The #GdkPixbufAnimation that the loader is loading, or %NULL if

Informs a pixbuf loader that no further writes with gdk_pixbuf_loader_write() will occur, so that it can free its internal loading structures. Also, tries to parse any data that hasn't yet been parsed; if the remaining data is partial or corrupt, an error will be returned. If %FALSE is returned, @error will be set to an error from the #GDK_PIXBUF_ERROR or #G_FILE_ERROR domains. If you're just cancelling a load rather than expecting it to be finished, passing %NULL for @error to ignore it is reasonable.

%TRUE if all image data written so far was successfully

Obtains the available information about the format of the currently loading image file. by GdkPixbuf and should not be freed.

A #GdkPixbufFormat or %NULL. The return value is owned

This signal is emitted when the pixbuf loader has allocated the pixbuf in the desired size. After this signal is emitted, applications can call gdk_pixbuf_loader_get_pixbuf() to fetch the partially-loaded pixbuf.

This signal is emitted when a significant area of the image being loaded has been updated. Normally it means that a complete scanline has been read in, but it could be a different area as well. Applications can use this signal to know when to repaint areas of an image that is being loaded.

X offset of upper-left corner of the updated area. Y offset of upper-left corner of the updated area. Width of updated area. Height of updated area. This signal is emitted when gdk_pixbuf_loader_close() is called. It can be used by different parts of an application to receive notification when an image loader is closed by the code that drives it.

This signal is emitted when the pixbuf loader has been fed the initial amount of data that is required to figure out the size of the image that it will create. Applications can call gdk_pixbuf_loader_set_size() in response to this signal to set the desired size to which the image should be scaled.

the original width of the image the original height of the image

Creates a new, empty animation.

a newly allocated #GdkPixbufSimpleAnim

the width of the animation the height of the animation the speed of the animation, in frames per second Adds a new frame to @animation. The @pixbuf must have the dimensions specified when the animation was constructed.

the pixbuf to add Sets whether @animation should loop indefinitely when it reaches the end.

whether to loop the animation Gets whether @animation should loop indefinitely when it reaches the end.

%TRUE if the animation loops forever, %FALSE otherwise

Whether the animation should loop when it reaches the end. A #GdkPixdata contains pixbuf information in a form suitable for serialization and streaming. Serializes a #GdkPixdata structure into a byte stream. The byte stream consists of a straightforward writeout of the #GdkPixdata fields in network byte order, plus the @pixel_data bytes the structure points to. #GdkPixdata structure.

A newly-allocated string containing the serialized

location to store the resulting stream length in. Deserializes (reconstruct) a #GdkPixdata structure from a byte stream. The byte stream consists of a straightforward writeout of the #GdkPixdata fields in network byte order, plus the @pixel_data bytes the structure points to. The @pixdata contents are reconstructed byte by byte and are checked for validity. This function may fail with %GDK_PIXBUF_CORRUPT_IMAGE or %GDK_PIXBUF_ERROR_UNKNOWN_TYPE. %FALSE otherwise.

Upon successful deserialization %TRUE is returned,

length of the stream used for deserialization. stream of bytes containing a serialized #GdkPixdata structure. Converts a #GdkPixbuf to a #GdkPixdata. If @use_rle is %TRUE, the pixel data is run-length encoded into newly-allocated memory and a pointer to that memory is returned. for the run-length encoded pixel data, otherwise %NULL.

If @ure_rle is %TRUE, a pointer to the newly-allocated memory

the data to fill @pixdata with. whether to use run-length encoding for the pixel data. Generates C source code suitable for compiling images directly into programs. GTK+ ships with a program called <command>gdk-pixbuf-csource</command> which offers a command line interface to this function. of @pixdata.

a newly-allocated string containing the C source form

used for naming generated data structures or macros. a #GdkPixdataDumpType determining the kind of C source to be generated. one for the used colorspace, one for the width of the samples and one for the encoding of the pixel data.