Practical Programming in Tcl & Tk, Third Edition

The Browser Plugin

The HTML EMBED tag is used to put various objects into a Web page, including a Tcl program. For example:

<EMBED src=eval.tcl width=400 height=300>

The width and height are interpreted by the plugin as the size of the embedded window. The src specifies the URL of the program. These parameter names (e.g., width) are case sensitive and should be lowercase. In the above example, eval.tcl is a relative URL, so it should be in the same directory as the HTML file that has the EMBED tag. The window size is fixed in the browser, which is different than normal toplevels in Tk. The plugin turns off geometry propagation on your main window so your Tclet stays the size allocated.

There are also “full window” Tclets that do not use an ...