XGetIconSizes man page on QNX

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XAllocIconSize(3)		XLIB FUNCTIONS		     XAllocIconSize(3)

       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

       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.

		 Returns the number of items in the size list.

       size_list Specifies the size list.

		 Returns the size list.

       w	 Specifies the window.

       The XAllocIconSize function allocates and returns a pointer to a XIcon‐
       Size structure.	Note that all fields in the XIconSize structure are
       initially set to zero.  If insufficient memory is available, XAllocI‐
       conSize 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.

		 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(3), XAllocSizeHints(3), XAllocWMHints(3), XFree(3),
       XSetCommand(3), XSetTransientForHint(3), XSetTextProperty(3), XSetWM‐
       ClientMachine(3), XSetWMColormapWindows(3), XSetWMIconName(3), XSetWM‐
       Name(3), XSetWMProperties(3), XSetWMProtocols(3), XStringListTo‐
       Xlib - C Language X Interface

X Version 11			 libX11 1.3.5		     XAllocIconSize(3)
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