XAllocIconSize 3X11 __xorgversion__ XLIB FUNCTIONS XAllocIconSize XSetIconSizes XGetIconSizes XIconSize allocate icon size structure and set or read a window's WM_ICON_SIZES property 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 ); 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. 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. 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 . 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.  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. XAllocClassHint(3X11), XAllocSizeHints(3X11), XAllocWMHints(3X11), XFree(3X11), XSetCommand(3X11), XSetTransientForHint(3X11), XSetTextProperty(3X11), XSetWMClientMachine(3X11), XSetWMColormapWindows(3X11), XSetWMIconName(3X11), XSetWMName(3X11), XSetWMProperties(3X11), XSetWMProtocols(3X11), XStringListToTextProperty(3X11) Xlib - C Language X Interface