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
       insufficient 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;
       otherwise, 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),
       XSetTransientForHint(3), XSetTextProperty(3), XSetWMClientMachine(3),
       XSetWMColormapWindows(3), XSetWMIconName(3), XSetWMName(3), XSetWMProperties(3),
       XSetWMProtocols(3), XStringListToTextProperty(3)
       Xlib - C Language X Interface