forked from AuroraMiddleware/gtk
32abeb4c96
Sun Feb 11 22:16:34 2001 Owen Taylor <otaylor@redhat.com> * */Makefile.am: Use the new snazzy mother-of-all-gtk-doc-makefiles. * gdk/tmpl/* gdk-pixbuf/tmpl/*: Recover a bunch of docs that were lost at one point.
150 lines
3.0 KiB
Plaintext
150 lines
3.0 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
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The GdkPixbuf Structure
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<!-- ##### SECTION Short_Description ##### -->
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Information that describes an image.
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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The <structname>GdkPixbuf</structname> structure contains
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information that describes an image in memory.
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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</para>
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<!-- ##### ENUM GdkPixbufError ##### -->
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<para>
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</para>
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@GDK_PIXBUF_ERROR_CORRUPT_IMAGE:
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@GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY:
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@GDK_PIXBUF_ERROR_BAD_OPTION_VALUE:
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@GDK_PIXBUF_ERROR_UNKNOWN_TYPE:
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@GDK_PIXBUF_ERROR_UNSUPPORTED_OPERATION:
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@GDK_PIXBUF_ERROR_FAILED:
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<!-- ##### MACRO GDK_PIXBUF_ERROR ##### -->
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<para>
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</para>
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<!-- ##### ENUM GdkColorspace ##### -->
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<para>
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This enumeration defines the color spaces that are supported by
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the &gdk-pixbuf; library. Currently only RGB is supported.
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</para>
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@GDK_COLORSPACE_RGB: Indicates a red/green/blue additive color space.
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<!-- ##### ENUM GdkPixbufAlphaMode ##### -->
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<para>
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These values can be passed to
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gdk_pixbuf_render_to_drawable_alpha() to control how the alpha
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chanel of an image should be handled. This function can create a
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bilevel clipping mask (black and white) and use it while painting
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the image. In the future, when the X Window System gets an alpha
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channel extension, it will be possible to do full alpha
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compositing onto arbitrary drawables. For now both cases fall
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back to a bilevel clipping mask.
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</para>
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@GDK_PIXBUF_ALPHA_BILEVEL: A bilevel clipping mask (black and white)
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will be created and used to draw the image. Pixels below 0.5 opacity
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will be considered fully transparent, and all others will be
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considered fully opaque.
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@GDK_PIXBUF_ALPHA_FULL: For now falls back to #GDK_PIXBUF_ALPHA_BILEVEL.
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In the future it will do full alpha compositing.
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<!-- ##### STRUCT GdkPixbuf ##### -->
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<para>
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This is the main structure in the &gdk-pixbuf; library. It is
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used to represent images. It contains information about the
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image's pixel data, its color space, bits per sample, width and
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height, and the rowstride or number of bytes between rows.
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</para>
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<!-- ##### FUNCTION gdk_pixbuf_get_colorspace ##### -->
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<para>
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</para>
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@pixbuf:
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@Returns:
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<!-- ##### FUNCTION gdk_pixbuf_get_n_channels ##### -->
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<para>
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</para>
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@pixbuf:
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@Returns:
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<!-- ##### FUNCTION gdk_pixbuf_get_has_alpha ##### -->
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<para>
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</para>
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@pixbuf:
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@Returns:
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<!-- ##### FUNCTION gdk_pixbuf_get_bits_per_sample ##### -->
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<para>
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</para>
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@pixbuf:
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@Returns:
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<!-- ##### FUNCTION gdk_pixbuf_get_pixels ##### -->
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<para>
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</para>
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@pixbuf:
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@Returns:
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<!-- ##### FUNCTION gdk_pixbuf_get_width ##### -->
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<para>
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</para>
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@pixbuf:
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@Returns:
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<!-- ##### FUNCTION gdk_pixbuf_get_height ##### -->
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<para>
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</para>
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@pixbuf:
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@Returns:
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<!-- ##### FUNCTION gdk_pixbuf_get_rowstride ##### -->
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<para>
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</para>
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@pixbuf:
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@Returns: <!--
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Local variables:
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mode: sgml
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sgml-parent-document: ("../gdk-pixbuf.sgml" "book" "refsect2" "")
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End:
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-->
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