PixbufSignalName

public enum PixbufSignalName : String, SignalNameProtocol

Undocumented

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  • The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

    Note that getting this signal doesn’t itself guarantee that the value of the property has actually changed. When it is emitted is determined by the derived GObject class. If the implementor did not create the property with G_PARAM_EXPLICIT_NOTIFY, then any call to g_object_set_property() results in notify being emitted, even if the new value is the same as the old. If they did pass G_PARAM_EXPLICIT_NOTIFY, then this signal is emitted only when they explicitly call g_object_notify() or g_object_notify_by_pspec(), and common practice is to do that only when the value has actually changed.

    This signal is typically used to obtain change notification for a single property, by specifying the property name as a detail in the g_signal_connect() call, like this:

    (C Language Example):

    g_signal_connect (text_view->buffer, "notify::paste-target-list",
                  G_CALLBACK (gtk_text_view_target_list_notify),
                  text_view)

    It is important to note that you must use canonical parameter names as detail strings for the notify signal.

    Declaration

    Swift

    case notify = "notify"
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  • The number of bits per sample.

    Currently only 8 bit per sample are supported.

    Declaration

    Swift

    case notifyBitsPerSample = "notify::bits-per-sample"
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  • The color space of the pixbuf.

    Currently, only GDK_COLORSPACE_RGB is supported.

    Declaration

    Swift

    case notifyColorspace = "notify::colorspace"
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  • Whether the pixbuf has an alpha channel.

    Declaration

    Swift

    case notifyHasAlpha = "notify::has-alpha"
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  • The number of rows of the pixbuf.

    Declaration

    Swift

    case notifyHeight = "notify::height"
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  • The number of samples per pixel.

    Currently, only 3 or 4 samples per pixel are supported.

    Declaration

    Swift

    case notifyNChannels = "notify::n-channels"
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  • Undocumented

    Declaration

    Swift

    case notifyPixelBytes = "notify::pixel-bytes"
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  • A pointer to the pixel data of the pixbuf.

    Declaration

    Swift

    case notifyPixels = "notify::pixels"
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  • 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.

    Declaration

    Swift

    case notifyRowstride = "notify::rowstride"
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  • The number of columns of the pixbuf.

    Declaration

    Swift

    case notifyWidth = "notify::width"
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