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The C-level extensibility mechanism lets you implement Macromedia Dreamweaver MX 2004
extensibility files using a combination of JavaScript and custom C code. You define functions
using C, bundle them in a dynamic linked library (DLL) or a shared library, save the library in the
Configuration/JSExtensions folder within the Dreamweaver application folder, and then call the
functions from JavaScript using the Dreamweaver JavaScript interpreter.
For example, you might want to define a Dreamweaver object that inserts the contents of a user-
specified file into the current document. Because client-side JavaScript does not provide support
file input/output (I/O), you must write a function in C to provide this functionality.
How integrating C functions works
You can use the following HTML and JavaScript to create a simple Insert Text from File object.
The
objectTag()
library named
myLibrary
<HTML>
<HEAD>
<SCRIPT>
function objectTag() {
fileName = document.forms[0].myFile.value;
return myLibrary.readContentsOfFile(fileName);
}
</SCRIPT>
</HEAD>
<BODY>
<FORM>
Enter the name of the file to be inserted:
<INPUT TYPE="file" NAME="myFile">
</FORM>
</BODY>
</HTML>
The
readContentsOfFile()
filename argument, reads the contents of the file, and returns the contents of the file. For more
information about the JavaScript data structures and functions that appear in the
readContentsOfFile()
on page
355.
JSBool
function calls the
readContentsOfFile()
.
function accepts a list of arguments from the user, retrieves the
function, see
"C-level extensibility and the JavaScript interpreter"
CHAPTER 21
C-Level Extensibility
C function, which is stored in a
353
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