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55 | <H3><A NAME="SECTION0018166000000000000000"> | |
56 | 16.1.6.6 Tk Option Data Types</A> | |
57 | </H3> | |
58 | <P> | |
59 | <a id='l2h-4839' xml:id='l2h-4839'></a> | |
60 | ||
61 | <P> | |
62 | <DL> | |
63 | <DT><STRONG>anchor</STRONG></DT> | |
64 | <DD>Legal values are points of the compass: <code>"n"</code>, | |
65 | <code>"ne"</code>, <code>"e"</code>, <code>"se"</code>, <code>"s"</code>, | |
66 | <code>"sw"</code>, <code>"w"</code>, <code>"nw"</code>, and also | |
67 | <code>"center"</code>. | |
68 | ||
69 | <P> | |
70 | </DD> | |
71 | <DT><STRONG>bitmap</STRONG></DT> | |
72 | <DD>There are eight built-in, named bitmaps: <code>'error'</code>, <code>'gray25'</code>, | |
73 | <code>'gray50'</code>, <code>'hourglass'</code>, <code>'info'</code>, <code>'questhead'</code>, | |
74 | <code>'question'</code>, <code>'warning'</code>. To specify an X bitmap | |
75 | filename, give the full path to the file, preceded with an <code>@</code>, | |
76 | as in <code>"@/usr/contrib/bitmap/gumby.bit"</code>. | |
77 | ||
78 | <P> | |
79 | </DD> | |
80 | <DT><STRONG>boolean</STRONG></DT> | |
81 | <DD>You can pass integers 0 or 1 or the strings <code>"yes"</code> or <code>"no"</code> . | |
82 | ||
83 | <P> | |
84 | </DD> | |
85 | <DT><STRONG>callback</STRONG></DT> | |
86 | <DD>This is any Python function that takes no arguments. For example: | |
87 | <div class="verbatim"><pre> | |
88 | def print_it(): | |
89 | print "hi there" | |
90 | fred["command"] = print_it | |
91 | </pre></div> | |
92 | ||
93 | <P> | |
94 | </DD> | |
95 | <DT><STRONG>color</STRONG></DT> | |
96 | <DD>Colors can be given as the names of X colors in the rgb.txt file, | |
97 | or as strings representing RGB values in 4 bit: <code>"#RGB"</code>, 8 | |
98 | bit: <code>"#RRGGBB"</code>, 12 bit" <code>"#RRRGGGBBB"</code>, or 16 bit | |
99 | <code>"#RRRRGGGGBBBB"</code> ranges, where R,G,B here represent any | |
100 | legal hex digit. See page 160 of Ousterhout's book for details. | |
101 | ||
102 | <P> | |
103 | </DD> | |
104 | <DT><STRONG>cursor</STRONG></DT> | |
105 | <DD>The standard X cursor names from <span class="file">cursorfont.h</span> can be used, | |
106 | without the <code>XC_</code> prefix. For example to get a hand cursor | |
107 | (<tt class="constant">XC_hand2</tt>), use the string <code>"hand2"</code>. You can also | |
108 | specify a bitmap and mask file of your own. See page 179 of | |
109 | Ousterhout's book. | |
110 | ||
111 | <P> | |
112 | </DD> | |
113 | <DT><STRONG>distance</STRONG></DT> | |
114 | <DD>Screen distances can be specified in either pixels or absolute | |
115 | distances. Pixels are given as numbers and absolute distances as | |
116 | strings, with the trailing character denoting units: <code>c</code> | |
117 | for centimetres, <code>i</code> for inches, <code>m</code> for millimetres, | |
118 | <code>p</code> for printer's points. For example, 3.5 inches is expressed | |
119 | as <code>"3.5i"</code>. | |
120 | ||
121 | <P> | |
122 | </DD> | |
123 | <DT><STRONG>font</STRONG></DT> | |
124 | <DD>Tk uses a list font name format, such as <code>{courier 10 bold}</code>. | |
125 | Font sizes with positive numbers are measured in points; | |
126 | sizes with negative numbers are measured in pixels. | |
127 | ||
128 | <P> | |
129 | </DD> | |
130 | <DT><STRONG>geometry</STRONG></DT> | |
131 | <DD>This is a string of the form "<tt class="samp"><var>width</var>x<var>height</var></tt>", where | |
132 | width and height are measured in pixels for most widgets (in | |
133 | characters for widgets displaying text). For example: | |
134 | <code>fred["geometry"] = "200x100"</code>. | |
135 | ||
136 | <P> | |
137 | </DD> | |
138 | <DT><STRONG>justify</STRONG></DT> | |
139 | <DD>Legal values are the strings: <code>"left"</code>, | |
140 | <code>"center"</code>, <code>"right"</code>, and <code>"fill"</code>. | |
141 | ||
142 | <P> | |
143 | </DD> | |
144 | <DT><STRONG>region</STRONG></DT> | |
145 | <DD>This is a string with four space-delimited elements, each of | |
146 | which is a legal distance (see above). For example: <code>"2 3 4 | |
147 | 5"</code> and <code>"3i 2i 4.5i 2i"</code> and <code>"3c 2c 4c 10.43c"</code> | |
148 | are all legal regions. | |
149 | ||
150 | <P> | |
151 | </DD> | |
152 | <DT><STRONG>relief</STRONG></DT> | |
153 | <DD>Determines what the border style of a widget will be. Legal | |
154 | values are: <code>"raised"</code>, <code>"sunken"</code>, | |
155 | <code>"flat"</code>, <code>"groove"</code>, and <code>"ridge"</code>. | |
156 | ||
157 | <P> | |
158 | </DD> | |
159 | <DT><STRONG>scrollcommand</STRONG></DT> | |
160 | <DD>This is almost always the <tt class="method">set()</tt> method of some scrollbar | |
161 | widget, but can be any widget method that takes a single argument. | |
162 | Refer to the file <span class="file">Demo/tkinter/matt/canvas-with-scrollbars.py</span> | |
163 | in the Python source distribution for an example. | |
164 | ||
165 | <P> | |
166 | </DD> | |
167 | <DT><STRONG>wrap:</STRONG></DT> | |
168 | <DD>Must be one of: <code>"none"</code>, <code>"char"</code>, or <code>"word"</code>. | |
169 | </DD> | |
170 | </DL> | |
171 | ||
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