* @GTK_MESSAGE_QUESTION: Question requiring a choice
* @GTK_MESSAGE_ERROR: Fatal error message
* @GTK_MESSAGE_OTHER: None of the above, doesn't get an icon
* @GTK_MESSAGE_QUESTION: Question requiring a choice
* @GTK_MESSAGE_ERROR: Fatal error message
* @GTK_MESSAGE_OTHER: None of the above, doesn't get an icon
* @GTK_PACK_DIRECTION_TTB: Widgets are packed top-to-bottom
* @GTK_PACK_DIRECTION_BTT: Widgets are packed bottom-to-top
*
* @GTK_PACK_DIRECTION_TTB: Widgets are packed top-to-bottom
* @GTK_PACK_DIRECTION_BTT: Widgets are packed bottom-to-top
*
* GtkSizeRequestMode:
* @GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH: Prefer height-for-width geometry management
* @GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT: Prefer width-for-height geometry management
* GtkSizeRequestMode:
* @GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH: Prefer height-for-width geometry management
* @GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT: Prefer width-for-height geometry management
* @GTK_BORDER_STYLE_HIDDEN: Same as @GTK_BORDER_STYLE_NONE
* @GTK_BORDER_STYLE_DOTTED: A series of round dots
* @GTK_BORDER_STYLE_DASHED: A series of square-ended dashes
* @GTK_BORDER_STYLE_HIDDEN: Same as @GTK_BORDER_STYLE_NONE
* @GTK_BORDER_STYLE_DOTTED: A series of round dots
* @GTK_BORDER_STYLE_DASHED: A series of square-ended dashes
* @GTK_BORDER_STYLE_GROOVE: Looks as if it were carved in the canvas
* @GTK_BORDER_STYLE_RIDGE: Looks as if it were coming out of the canvas
*
* @GTK_BORDER_STYLE_GROOVE: Looks as if it were carved in the canvas
* @GTK_BORDER_STYLE_RIDGE: Looks as if it were coming out of the canvas
*