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Snippets Charles-Alexandre Roy Friendly Hawk Mobile Star Ankur Lokesh Excel Hero Note that widgets do not appear until they have had their geometry specified with a geometry manager. Here are some examples:. Boolean, 0 or 1. Legal values: 'x' , 'y' , 'both' , 'none'. Legal values are: 'left' , 'right' , 'top' , 'bottom'. The current-value setting of some widgets like text entry widgets can be connected directly to application variables by using special options.
These options are variable , textvariable , onvalue , offvalue , and value. Unfortunately, in the current implementation of tkinter it is not possible to hand over an arbitrary Python variable to a widget through a variable or textvariable option. The only kinds of variables for which this works are variables that are subclassed from a class called Variable, defined in tkinter.
To read the current value of such a variable, call the get method on it, and to change its value you call the set method. If you follow this protocol, the widget will always track the value of the variable, with no further intervention on your part. In Tk, there is a utility command, wm , for interacting with the window manager.
Options to the wm command allow you to control things like titles, placement, icon bitmaps, and the like. In tkinter , these commands have been implemented as methods on the Wm class. Toplevel widgets are subclassed from the Wm class, and so can call the Wm methods directly. This method begins with an underscore to denote the fact that this function is part of the implementation, and not an interface to Tk functionality. Legal values are points of the compass: "n" , "ne" , "e" , "se" , "s" , "sw" , "w" , "nw" , and also "center".
There are eight built-in, named bitmaps: 'error' , 'gray25' , 'gray50' , 'hourglass' , 'info' , 'questhead' , 'question' , 'warning'. You can pass integers 0 or 1 or the strings "yes" or "no". Colors can be given as the names of X colors in the rgb.
The standard X cursor names from cursorfont. You can also specify a bitmap and mask file of your own. Screen distances can be specified in either pixels or absolute distances. For example, 3.
Font sizes with positive numbers are measured in points; sizes with negative numbers are measured in pixels. This is a string of the form widthxheight , where width and height are measured in pixels for most widgets in characters for widgets displaying text.
Legal values are the strings: "left" , "center" , "right" , and "fill". This is a string with four space-delimited elements, each of which is a legal distance see above. For example: "2 3 4 5" and "3i 2i 4. Determines what the border style of a widget will be. Legal values are: "raised" , "sunken" , "flat" , "groove" , and "ridge".
This is almost always the set method of some scrollbar widget, but can be any widget method that takes a single argument. Must be one of: "none" , "char" , or "word". The bind method from the widget command allows you to watch for certain events and to have a callback function trigger when that event type occurs.
The form of the bind method is:. An Event instance will be passed as the argument. Functions deployed this way are commonly known as callbacks. Passing an empty string denotes that this binding is to replace any other bindings that this event is associated with. This field contains the widget that caught the X event. The following table lists the other event fields you can access, and how they are denoted in Tk, which can be useful when referring to the Tk man pages.
These are used to point at a specific place in a Text widget, or to particular characters in an Entry widget, or to particular menu items in a Menu widget. Entry widgets have options that refer to character positions in the text being displayed. You can use these tkinter functions to access these special points in text widgets:. Some options and methods for menus manipulate specific menu entries.
Anytime a menu index is needed for an option or a parameter, you may pass in:. Note that this index type is considered after all the others, which means that matches for menu items labelled last , active , or none may be interpreted as the above literals, instead. Images of different formats can be created through the corresponding subclass of tkinter. Image :.
BitmapImage for images in XBM format. The latter is supported starting with Tk 8. Related Links. What Is Pandas In Python? Everything You Need To Know. Download Python For Machine Learning. Frequently Asked Questions. How do I install Tkinter on Windows? Download ActivePython with Tcl and Tkinter included. Where can I download Tkinter for Python? How do I call Tkinter in Python? After the installation is completed successfully, you can import tkinter into your program.
If this code works correctly without raising an error, this package is installed successfully with the Python installation. If the Python drops the TK package during installation, you can install it manually using one of the following commands.
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