winfo(3Tk)
winfo - Return window-related information
As shipped in IRIX 6.5. First release of IRIX 6.5.
NAME winfo - Return window-related information SYNOPSIS winfo option ?arg arg ...? DESCRIPTION The winfo command is used to retrieve information about windows managed by Tk. It can take any of a number of different forms, depending on the option argument. The legal forms are: winfo atom ?-displayof window? name Returns a decimal string giving the integer identifier for the atom whose name is name. If no atom exists with the name name then a new one is created. If the -displayof option is given then the atom is | looked up on the display of window; otherwise it is looked up on | the display of the application's main window. winfo atomname ?-displayof window? id Returns the textual name for the atom whose integer identifier is id. If the -displayof option is given then the identifier is looked| up on the display of window; otherwise it is looked up on the | display of the application's main window. This command is the inverse of the winfo atom command. It generates an error if no such atom exists. winfo cells window Returns a decimal string giving the number of cells in the color map for window. winfo children window Returns a list containing the path names of all the children of window. Top-level windows are returned as children of their logical parents. winfo class window Returns the class name for window. winfo colormapfull window Returns 1 if the colormap for window is known to be full, 0 | otherwise. The colormap for a window is ``known'' to be full if the| last attempt to allocate a new color on that window failed and this | application hasn't freed any colors in the colormap since the failed| allocation. winfo containing ?-displayof window? rootX rootY Returns the path name for the window containing the point given by rootX and rootY. RootX and rootY are specified in screen units (i.e. any form acceptable to Tk_GetPixels) in the coordinate system of the root window (if a virtual-root window manager is in use then the coordinate system of the virtual root window is used). If the | -displayof option is given then the coordinates refer to the screen | containing window; otherwise they refer to the screen of the | application's main window. If no window in this application contains the point then an empty string is returned. In selecting the containing window, children are given higher priority than parents and among siblings the highest one in the stacking order is chosen. winfo depth window Returns a decimal string giving the depth of window (number of bits per pixel). winfo exists window Returns 1 if there exists a window named window, 0 if no such window exists. winfo fpixels window number Returns a floating-point value giving the number of pixels in window corresponding to the distance given by number. Number may be specified in any of the forms acceptable to Tk_GetScreenMM, such as ``2.0c'' or ``1i''. The return value may be fractional; for an integer value, use winfo pixels. winfo geometry window Returns the geometry for window, in the form widthxheight+x+y. All dimensions are in pixels. winfo height window Returns a decimal string giving window's height in pixels. When a window is first created its height will be 1 pixel; the height will eventually be changed by a geometry manager to fulfill the window's needs. If you need the true height immediately after creating a widget, invoke update to force the geometry manager to arrange it, or use winfo reqheight to get the window's requested height instead of its actual height. winfo id window Returns a hexadecimal string indicating the X identifier for window. winfo interps ?-displayof window? Returns a list whose members are the names of all Tcl interpreters (e.g. all Tk-based applications) currently registered for a | particular display. If the -displayof option is given then the | return value refers to the display of window; otherwise it refers | to the display of the application's main window. winfo ismapped window Returns 1 if window is currently mapped, 0 otherwise. winfo manager window Returns the name of the geometry manager currently responsible for | window, or an empty string if window isn't managed by any geometry | manager. The name is usually the name of the Tcl command for the | geometry manager, such as pack or place. If the geometry manager is| a widget, such as canvases or text, the name is the widget's class | command, such as canvas. winfo name window Returns window's name (i.e. its name within its parent, as opposed to its full path name). The command winfo name . will return the name of the application. winfo parent window Returns the path name of window's parent, or an empty string if window is the main window of the application. winfo pathname ?-displayof window? id Returns the path name of the window whose X identifier is id. Id must be a decimal, hexadecimal, or octal integer and must correspond to a window in the invoking application. If the -displayof option | is given then the identifier is looked up on the display of window; | otherwise it is looked up on the display of the application's main | window. winfo pixels window number Returns the number of pixels in window corresponding to the distance given by number. Number may be specified in any of the forms acceptable to Tk_GetPixels, such as ``2.0c'' or ``1i''. The result is rounded to the nearest integer value; for a fractional result, use winfo fpixels. winfo pointerx window If the mouse pointer is on the same screen as window, returns the | pointer's x coordinate, measured in pixels in the screen's root | window. If a virtual root window is in use on the screen, the | position is measured in the virtual root. If the mouse pointer | isn't on the same screen as window then -1 is returned. winfo pointerxy window If the mouse pointer is on the same screen as window, returns a list| with two elements, which are the pointer's x and y coordinates | measured in pixels in the screen's root window. If a virtual root | window is in use on the screen, the position is computed in the | virtual root. If the mouse pointer isn't on the same screen as | window then both of the returned coordinates are -1. winfo pointery window If the mouse pointer is on the same screen as window, returns the | pointer's y coordinate, measured in pixels in the screen's root | window. If a virtual root window is in use on the screen, the | position is computed in the virtual root. If the mouse pointer | isn't on the same screen as window then -1 is returned. winfo reqheight window Returns a decimal string giving window's requested height, in pixels. This is the value used by window's geometry manager to compute its geometry. winfo reqwidth window Returns a decimal string giving window's requested width, in pixels. This is the value used by window's geometry manager to compute its geometry. winfo rgb window color Returns a list containing three decimal values, which are the red, green, and blue intensities that correspond to color in the window given by window. Color may be specified in any of the forms acceptable for a color option. winfo rootx window Returns a decimal string giving the x-coordinate, in the root window of the screen, of the upper-left corner of window's border (or window if it has no border). winfo rooty window Returns a decimal string giving the y-coordinate, in the root window of the screen, of the upper-left corner of window's border (or window if it has no border). winfo screen window Returns the name of the screen associated with window, in the form displayName.screenIndex. winfo screencells window Returns a decimal string giving the number of cells in the default color map for window's screen. winfo screendepth window Returns a decimal string giving the depth of the root window of window's screen (number of bits per pixel). winfo screenheight window Returns a decimal string giving the height of window's screen, in pixels. winfo screenmmheight window Returns a decimal string giving the height of window's screen, in millimeters. winfo screenmmwidth window Returns a decimal string giving the width of window's screen, in millimeters. winfo screenvisual window Returns one of the following strings to indicate the default visual class for window's screen: directcolor, grayscale, pseudocolor, staticcolor, staticgray, or truecolor. winfo screenwidth window Returns a decimal string giving the width of window's screen, in pixels. winfo server window Returns a string containing information about the server for | window's display. The exact format of this string may vary from | platform to platform. For X servers the string has the form | ``XmajorRminor vendor vendorVersion'' where major and minor are the | version and revision numbers provided by the server (e.g., X11R5), | vendor is the name of the vendor for the server, and vendorRelease | is an integer release number provided by the server. winfo toplevel window Returns the path name of the top-level window containing window. winfo viewable window Returns 1 if window and all of its ancestors up through the nearest | toplevel window are mapped. Returns 0 if any of these windows are | not mapped. winfo visual window Returns one of the following strings to indicate the visual class for window: directcolor, grayscale, pseudocolor, staticcolor, staticgray, or truecolor. winfo visualsavailable window Returns a list whose elements describe the visuals available for | window's screen. Each element consists of a visual class followed | by an integer depth. The class has the same form as returned by | winfo visual. The depth gives the number of bits per pixel in the | visual. winfo vrootheight window Returns the height of the virtual root window associated with window if there is one; otherwise returns the height of window's screen. winfo vrootwidth window Returns the width of the virtual root window associated with window if there is one; otherwise returns the width of window's screen. winfo vrootx window Returns the x-offset of the virtual root window associated with window, relative to the root window of its screen. This is normally either zero or negative. Returns 0 if there is no virtual root window for window. winfo vrooty window Returns the y-offset of the virtual root window associated with window, relative to the root window of its screen. This is normally either zero or negative. Returns 0 if there is no virtual root window for window. winfo width window Returns a decimal string giving window's width in pixels. When a window is first created its width will be 1 pixel; the width will eventually be changed by a geometry manager to fulfill the window's needs. If you need the true width immediately after creating a widget, invoke update to force the geometry manager to arrange it, or use winfo reqwidth to get the window's requested width instead of its actual width. winfo x window Returns a decimal string giving the x-coordinate, in window's parent, of the upper-left corner of window's border (or window if it has no border). winfo y window Returns a decimal string giving the y-coordinate, in window's parent, of the upper-left corner of window's border (or window if it has no border). KEYWORDS atom, children, class, geometry, height, identifier, information, interpreters, mapped, parent, path name, screen, virtual root, width, window