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55 | <H2><A NAME="SECTION0018150000000000000000"> | |
56 | 16.1.5 How Tk and Tkinter are Related</A> | |
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59 | <span class="note"><b class="label">Note:</b> | |
60 | This was derived from a graphical image; the image will be used | |
61 | more directly in a subsequent version of this document.</span> | |
62 | ||
63 | <P> | |
64 | From the top down: | |
65 | <DL> | |
66 | <DT><STRONG>Your App Here (Python)</STRONG></DT> | |
67 | <DD>A Python application makes a <tt class="module"><a href="module-Tkinter.html">Tkinter</a></tt> call. | |
68 | ||
69 | <P> | |
70 | </DD> | |
71 | <DT><STRONG>Tkinter (Python Module)</STRONG></DT> | |
72 | <DD>This call (say, for example, creating a button widget), is | |
73 | implemented in the <em>Tkinter</em> module, which is written in | |
74 | Python. This Python function will parse the commands and the | |
75 | arguments and convert them into a form that makes them look as if they | |
76 | had come from a Tk script instead of a Python script. | |
77 | ||
78 | <P> | |
79 | </DD> | |
80 | <DT><STRONG>tkinter (C)</STRONG></DT> | |
81 | <DD>These commands and their arguments will be passed to a C function | |
82 | in the <em>tkinter</em> - note the lowercase - extension module. | |
83 | ||
84 | <P> | |
85 | </DD> | |
86 | <DT><STRONG>Tk Widgets (C and Tcl)</STRONG></DT> | |
87 | <DD>This C function is able to make calls into other C modules, | |
88 | including the C functions that make up the Tk library. Tk is | |
89 | implemented in C and some Tcl. The Tcl part of the Tk widgets is used | |
90 | to bind certain default behaviors to widgets, and is executed once at | |
91 | the point where the Python <tt class="module"><a href="module-Tkinter.html">Tkinter</a></tt> module is | |
92 | imported. (The user never sees this stage). | |
93 | ||
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95 | </DD> | |
96 | <DT><STRONG>Tk (C)</STRONG></DT> | |
97 | <DD>The Tk part of the Tk Widgets implement the final mapping to ... | |
98 | ||
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100 | </DD> | |
101 | <DT><STRONG>Xlib (C)</STRONG></DT> | |
102 | <DD>the Xlib library to draw graphics on the screen. | |
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142 | <span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span> | |
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