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GObject.Object
parent-child marker Gdk.Colormap

Class Gdk.Colormap

Import line:	Gdk = imports.gi.Gdk;
GIR File:	Gdk-2.0.gir
C documentation:	GdkColormap
Class :	Colormap
Extends:	GObject.Object
	Show / Hide Inherited methods, properties and signals

Properties
Properties		Defined By
	colors : Gdk.Color read only	Gdk.Colormap
	parent_instance : GObject.Object read only	Gdk.Colormap
	size : Number read only	Gdk.Colormap
	visual : Gdk.Visual read only	Gdk.Colormap
	windowing_data : void* read only	Gdk.Colormap

Methods / Constructors
Method / Constructor		Defined By
	new Gdk.Colormap (Object *properties) Create a new Gdk.Colormap Create a new Gdk.Colormap Parameters: Object properties*
	new Gdk.Colormap.c_new (Visual *visual, Boolean allocate) : Gdk.Colormap Create a new Gdk.Colormap Create a new Gdk.Colormap Parameters: Gdk.Visual visual* Required (not null) Boolean allocate Required (not null) a private colormap, and all colors in it will be allocated for the applications use. Returns: Gdk.Colormap
	Gdk.Colormap.get_system () : Gdk.Colormap Gets the system's default colormap for the default screen. Gets the system's default colormap for the default screen. (See gdk_colormap_get_system_for_screen ()) Returns: Gdk.Colormap	Gdk.Colormap
	Gdk.Colormap.get_system_size () : Number Returns the size of the system's default colormap. Returns the size of the system's default colormap. (See the description of struct GdkColormap for an explanation of the size of a colormap.) Returns: Number	Gdk.Colormap
	alloc_color (Color *color, Boolean writeable, Boolean best_match) : Boolean Allocates a single color from a colormap. Allocates a single color from a colormap. Parameters: Gdk.Color color* Required (not null) pixel field will be filled in if allocation succeeds. Boolean writeable Required (not null) (their values can later be changed using gdk_color_change()). Writeable colors cannot be shared between applications. Boolean best_match Required (not null) existing colors if the color cannot be allocated as requested. Returns: Boolean	Gdk.Colormap
	alloc_colors (Color *colors, Number n_colors, Boolean writeable, Boolean best_match, Object out_values) : Number Allocates colors from a colormap. Allocates colors from a colormap. allocated. Parameters: Gdk.Color colors* Required (not null) values for allocated colors will be filled in. Number n_colors Required (not null) Boolean writeable Required (not null) (their values can later be changed using gdk_color_change()). Writeable colors cannot be shared between applications. Boolean best_match Required (not null) existing colors if the colors cannot be allocated as requested. Object out_values Boolean success Returns: Number	Gdk.Colormap
	change (Number *ncolors) : none Changes the value of the first ncolors* in a private colormap to match the values in the colors array in the colormap. Changes the value of the first ncolors in a private colormap to match the values in the colors array in the colormap. This function is obsolete and should not be used. See gdk_color_change(). Parameters: Number ncolors Required (not null) Returns: none	Gdk.Colormap
	free_colors (Color *colors, Number n_colors) : none Frees previously allocated colors. Frees previously allocated colors. Parameters: Gdk.Color colors* Required (not null) Number n_colors Required (not null) Returns: none	Gdk.Colormap
	get_screen () : Gdk.Screen Gets the screen for which this colormap was created. Gets the screen for which this colormap was created. Returns: Gdk.Screen	Gdk.Colormap
	get_visual () : Gdk.Visual Returns the visual for which a given colormap was created. Returns the visual for which a given colormap was created. Returns: Gdk.Visual	Gdk.Colormap
	query_color (Number *pixel, Color result) : none Locates the RGB color in colormap* corresponding to the given hardware pixel pixel. Locates the RGB color in colormap corresponding to the given hardware pixel pixel. pixel must be a valid pixel in the colormap; it's a programmer error to call this function with a pixel which is not in the colormap. Hardware pixels are normally obtained from gdk_colormap_alloc_colors(), or from a GdkImage. (A GdkImage contains image data in hardware format, a GdkPixbuf contains image data in a canonical 24-bit RGB format.) This function is rarely useful; it's used for example to implement the eyedropper feature in GtkColorSelection. Parameters: Number pixel Required (not null) Gdk.Color result Required (not null) Returns: none	Gdk.Colormap

Events
None

Used by These Methods / Signals / Properties
Class / Namespace	Method / Signal / Properties
Gdk Method	Gdk.color_alloc (Colormap *colormap, Color color*) : Number Allocates a single color from a colormap.
Gdk Method	Gdk.color_black (Colormap *colormap, Color color*) : Number Returns the black color for a given colormap.
Gdk Method	Gdk.color_change (Colormap *colormap, Color color*) : Number Changes the value of a color that has already been allocated.
Gdk Method	Gdk.color_white (Colormap *colormap, Color color*) : Number Returns the white color for a given colormap.
Gdk Method	Gdk.colors_alloc (Colormap *colormap, Boolean contiguous, Object out_values, Number nplanes, Number pixels, Number npixels*) : Number Allocates colors from a colormap.
Gdk Method	Gdk.colors_free (Colormap *colormap, Number pixels, Number npixels, Number planes*) : Number Frees colors allocated with gdk_colors_alloc().
Gdk Method	Gdk.colors_store (Colormap *colormap, Color colors, Number ncolors) : none Changes the value of the first ncolors* colors in a private colormap.
Gdk Method	Gdk.pango_context_set_colormap (Context *context, Colormap colormap*) : none This function used to set the colormap to be used for drawing with context used for drawing, so calling this function is no longer necessary.
Gdk Method	Gdk.pixbuf_get_from_drawable (Pixbuf *dest, Drawable src, Colormap cmap, Number src_x, Number src_y, Number dest_x, Number dest_y, Number width, Number height) : GdkPixbuf.Pixbuf Transfers image data from a GdkDrawable* and converts it to an RGB(A) representation inside a GdkPixbuf.
Gdk Method	Gdk.pixbuf_get_from_image (Pixbuf *dest, Image src, Colormap cmap, Number src_x, Number src_y, Number dest_x, Number dest_y, Number width, Number height*) : GdkPixbuf.Pixbuf Same as gdk_pixbuf_get_from_drawable() but gets the pixbuf from an image.
Gdk Method	Gdk.pixbuf_render_pixmap_and_mask_for_colormap (Pixbuf *pixbuf, Colormap colormap, Pixmap pixmap_return, Bitmap mask_return, Number alpha_threshold) : none Creates a pixmap and a mask bitmap which are returned in the pixmap_return* and mask_return arguments, respectively, and renders a pixbuf and its corresponding tresholded alpha mask to them.
Gdk Method	Gdk.rgb_colormap_ditherable (Colormap *cmap*) : Boolean
Gdk Method	Gdk.rgb_find_color (Colormap *colormap, Color color*) : none drawable you're using to draw.
Gdk Method	Gdk.rgb_get_colormap () : Gdk.Colormap Get the preferred colormap for rendering image data.
Gdk.Drawable Method	set_colormap (Colormap *colormap) : none Sets the colormap associated with drawable*.
Gdk.Drawable Method	get_colormap () : Gdk.Colormap Gets the colormap for drawable, if one is set; returns NULL otherwise.
Gdk.GC Method	set_colormap (Colormap *colormap*) : none Sets the colormap for the GC to the given colormap.
Gdk.GC Method	get_colormap () : Gdk.Colormap Retrieves the colormap for a given GC, if it exists.
Gdk.Image Method	set_colormap (Colormap *colormap*) : none Sets the colormap for the image to the given colormap.
Gdk.Image Method	get_colormap () : Gdk.Colormap Retrieves the colormap for a given image, if it exists.
Gdk.Pixmap Method	Gdk.Pixmap.colormap_create_from_xpm (Drawable *drawable, Colormap colormap, Bitmap mask, Color transparent_color, String filename*) : Gdk.Pixmap Create a pixmap from a XPM file using a particular colormap.
Gdk.Pixmap Method	Gdk.Pixmap.colormap_create_from_xpm_d (Drawable *drawable, Colormap colormap, Bitmap mask, Color transparent_color, Array data*) : Gdk.Pixmap Create a pixmap from data in XPM format using a particular colormap.
Gdk.Screen Method	get_default_colormap () : Gdk.Colormap Gets the default colormap for screen.
Gdk.Screen Method	set_default_colormap (Colormap *colormap) : none Sets the default colormap* for screen.
Gdk.Screen Method	get_system_colormap () : Gdk.Colormap Gets the system's default colormap for screen
Gdk.Screen Method	get_rgb_colormap () : Gdk.Colormap Gets the preferred colormap for rendering image data on screen.
Gdk.Screen Method	get_rgba_colormap () : Gdk.Colormap Gets a colormap to use for creating windows or pixmaps with an alpha channel.
Gtk Method	Gtk.drag_set_default_icon (Colormap *colormap, Pixmap pixmap, Bitmap mask, Number hot_x, Number hot_y*) : none Changes the default drag icon.
Gtk Method	Gtk.drag_set_icon_pixmap (DragContext *context, Colormap colormap, Pixmap pixmap, Bitmap mask, Number hot_x, Number hot_y) : none Sets pixmap* as the icon for a given drag.
Gtk Method	Gtk.drag_source_set_icon (Widget *widget, Colormap colormap, Pixmap pixmap, Bitmap mask*) : none Sets the icon that will be used for drags from a particular widget from a pixmap/mask.
Gtk Method	Gtk.gc_get (Number *depth, Colormap colormap, GCValues values, GCValuesMask values_mask*) : Gdk.GC
Gtk.Preview Method	Gtk.Preview.get_cmap () : Gdk.Colormap
Gtk.Widget Method	Gtk.Widget.push_colormap (Colormap *cmap) : none Pushes cmap* onto a global stack of colormaps; the topmost colormap on the stack will be used to create all widgets.
Gtk.Widget Method	Gtk.Widget.set_default_colormap (Colormap *colormap*) : none Sets the default colormap to use when creating widgets.
Gtk.Widget Method	Gtk.Widget.get_default_colormap () : Gdk.Colormap Obtains the default colormap used to create widgets.
Gtk.Widget Method	get_colormap () : Gdk.Colormap Gets the colormap that will be used to render widget.
Gtk.Widget Method	set_colormap (Colormap *colormap*) : none Sets the colormap for the widget to the given value.

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Class Gdk.Colormap