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CentOS 7.0 - man page for xgeticonsizes (centos section 3)

XAllocIconSize(3)			  XLIB FUNCTIONS			XAllocIconSize(3)

NAME
       XAllocIconSize, XSetIconSizes, XGetIconSizes, XIconSize - allocate icon size structure and
       set or read a window's WM_ICON_SIZES property

SYNTAX
       XIconSize *XAllocIconSize(void);

       int XSetIconSizes(Display *display, Window w, XIconSize *size_list, int count);

       Status XGetIconSizes(Display *display, Window w, XIconSize **size_list_return, int
       count_return);

ARGUMENTS
       display	 Specifies the connection to the X server.

       count	 Specifies the number of items in the size list.

       count_return
		 Returns the number of items in the size list.

       size_list Specifies the size list.

       size_list_return
		 Returns the size list.

       w	 Specifies the window.

DESCRIPTION
       The XAllocIconSize function allocates and returns a pointer to a XIconSize structure.
       Note that all fields in the XIconSize structure are initially set to zero.  If insuffi-
       cient memory is available, XAllocIconSize returns NULL.	To free the memory allocated to
       this structure, use XFree.

       The XSetIconSizes function is used only by window managers to set the supported icon
       sizes.

       XSetIconSizes can generate BadAlloc and BadWindow errors.

       The XGetIconSizes function returns zero if a window manager has not set icon sizes; other-
       wise, it return nonzero.  XGetIconSizes should be called by an application that wants to
       find out what icon sizes would be most appreciated by the window manager under which the
       application is running.	The application should then use XSetWMHints to supply the window
       manager with an icon pixmap or window in one of the supported sizes.  To free the data
       allocated in size_list_return, use XFree.

       XGetIconSizes can generate a BadWindow error.

PROPERTIES
       WM_ICON_SIZES
		 The window manager may set this property on the root window to specify the icon
		 sizes it supports.  The C type of this property is XIconSize.

STRUCTURES
       The XIconSize structure contains:

       typedef struct {
	       int min_width, min_height;
	       int max_width, max_height;
	       int width_inc, height_inc;
       } XIconSize;

       The width_inc and height_inc members define an arithmetic progression of sizes (minimum to
       maximum) that represent the supported icon sizes.

DIAGNOSTICS
       BadAlloc  The server failed to allocate the requested resource or server memory.

       BadWindow A value for a Window argument does not name a defined Window.

SEE ALSO
       XAllocClassHint(3), XAllocSizeHints(3), XAllocWMHints(3), XFree(3), XSetCommand(3), XSet-
       TransientForHint(3), XSetTextProperty(3), XSetWMClientMachine(3), XSetWMColormapWin-
       dows(3), XSetWMIconName(3), XSetWMName(3), XSetWMProperties(3), XSetWMProtocols(3),
       XStringListToTextProperty(3)
       Xlib - C Language X Interface

X Version 11				   libX11 1.6.0 			XAllocIconSize(3)


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