how can work with dll in javascript.

You definitely need a plug-in, extension or ActiveX of your own installed on the client.

In the case of a firefox extension, you can use https://developer.mozilla.org/en-US/docs/Mozilla/js-ctypes to wrap the calls easily.
If you use the Jetpack API included with Firefox 4, it will be all JavaScript and won't even require a browser restart.

Here's an exemple from mozilla.org for a basic Hello World :

/*LoadJSCtypesJavascriptmodule*/
require("chrome").Cu.import("resource://gre/modules/ctypes.jsm");
/*Loadwindowsapidll*/
varlib=ctypes.open("user32.dll");
/*Declarethesignatureofthefunctionwearegoingtocall*/
varmsgBox=lib.declare("MessageBoxW",
ctypes.stdcall_abi,
ctypes.int32_t,
ctypes.int32_t,
ctypes.ustring,
ctypes.ustring,
ctypes.int32_t);
varMB_OK=3;
/*Doit!*/
varret=msgBox(0,"Helloworld","title",MB_OK);
/*Displaythereturnedvalue*/
alert("MessageBoxresult:"+ret);
lib.close();

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Munesh Sharma10y ago
http://www.c-sharpcorner.com/UploadFile/devdream789/calling-a-net-dll-code-on-htm-file-using-microsoft-net-han/
Shakti Singh Dulawat10y ago
You definitely need a plug-in, extension or ActiveX of your own installed on the client.

In the case of a firefox extension, you can use https://developer.mozilla.org/en-US/docs/Mozilla/js-ctypes to wrap the calls easily.
If you use the Jetpack API included with Firefox 4, it will be all JavaScript and won't even require a browser restart.

Here's an exemple from mozilla.org for a basic Hello World :
/*LoadJSCtypesJavascriptmodule*/
require("chrome").Cu.import("resource://gre/modules/ctypes.jsm");
/*Loadwindowsapidll*/
varlib=ctypes.open("user32.dll");
/*Declarethesignatureofthefunctionwearegoingtocall*/
varmsgBox=lib.declare("MessageBoxW",
ctypes.stdcall_abi,
ctypes.int32_t,
ctypes.int32_t,
ctypes.ustring,
ctypes.ustring,
ctypes.int32_t);
varMB_OK=3;
/*Doit!*/
varret=msgBox(0,"Helloworld","title",MB_OK);
/*Displaythereturnedvalue*/
alert("MessageBoxresult:"+ret);
lib.close();