![]() ![]() Note that selection get does not retrieve the selection in the UTF8_STRING format unless told to. If the selection is returned in a non-string format, such as INTEGER or ATOM, the selection command converts it to string format as a collection of fields separated by spaces: atoms are converted to their textual names, and anything else is converted to hexadecimal integers. (this format is different than the selection type see the ICCCM for all the confusing details). The selection owner may choose to return the selection in any of several different representation formats, such as STRING, UTF8_STRING, ATOM, INTEGER, etc. Type specifies the form in which the selection is to be returned (the desired “target” for conversion, in ICCCM terminology), and should be an atom name such as STRING or FILE_NAME see the Inter-Client Communication Conventions Manual for complete details. Selection defaults to PRIMARY and window defaults to “.”. Retrieves the value of selection from window's display and returns it as a result. Return self.tk.call(('selection', 'get') + self._options(kw))It does not look like this is meant to be used in programs.įrom the documentation for tk: Wrote:selection get ?-displayof window?-selection selection?-type type? Return self.tk.call(('selection', 'get') + self._options(kw)) If 'type' not in kw and self._windowingsystem = 'x11': A keyword parameter type specifies the form of data to beįetched, defaulting to STRING except on X11, where UTF8_STRING is tried Parameter displayof specifies a widget on the display """Return the contents of the current X selection.Ī keyword parameter selection specifies the name of From the code: Lib/tkinter/_init_.py Wrote: def selection_get(self, **kw): ee = ttk.Treeview(parent, columns=columns, show='headings', selectmode='browse')ĭata.append((f'Column 1 Data ') #! /usr/bin/env python3Ĭolumns = ('Column 1', 'Column 2', 'Column 3', 'Column 4') ![]() The second parameter specifies the name of the function to be recalled.If you are wanting to get the values of selected row, maybe this will help get you started. The first parameter in root.after() specifies the time interval in milliseconds after which you want the function to be recalled. This line of the code performs the main function of recalling the function update(). The update function can be modified to perform the required updation. You can change the time interval according to need. This will automatically change the text of the label to some new number after 1000 milliseconds. In this video I'll show you how to update or edit a database record with our treeview.We can already update or edit a record in the treeview widget itself, b. Root.after(1000, update) # run itself again after 1000 ms We can call this function continuously after an interval of 1 second using the after(). We can do this by defining a function that will change the text of the label to some random number between. We want this number to change after each 1 second. To keep the example easy, suppose we want the label to show some number between. We want the text of the label to update automatically after 1 second. The function which we call continuously after a certain amount of time will update the text or any updation you want to happen. For example, 1000 milliseconds mean 1 second. We can use after() to run a function after a certain time. We may sometimes want the content of our controls such as labels to update automatically while we are viewing the window. GUI window has many controls such as labels, buttons, text boxes, etc.
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