How Awesomium JSObject works I cannot find an example
I am using Awesomium WebControl on a C # form and I am trying to communicate information to the browser that the USB device has been connected. I have USB detection, but for some reason I cannot build JSObject()
with values for every device connected to it.
Here is the code that runs when the device is connected to the computer.
JSObject js_obj;
DriveInfo[] allDrives = DriveInfo.GetDrives();
JSValue[] js_arr = new JSValue[allDrives.Count()];
int count = 0;
foreach (DriveInfo drive in allDrives)
{
if (drive.IsReady == true)
{
if (drive.DriveType == DriveType.Removable)
{
js_obj = new JSObject();
js_obj["Id"] = new JSValue("");
js_obj["TimeAdded"] = new JSValue("");
js_obj["DriveLetters"] = new JSValue(drive.VolumeLabel);
js_obj["Port"] = new JSValue("");
js_arr[count] = new JSValue(js_obj);
count++;
}
}
}
this.Browser.CallJavascriptFunction("DiskDetector", "DeviceAdded", js_arr);
But when I add a breakpoint to this.Browser.CallJavascriptFunction("DiskDetector", "DeviceAdded", js_arr);
, js_arr is an array of 4 where all values are null
I think the problem is that I am using JSObject and JSObject Extends IDisposable parameter values, and I, although I have to add all ("key", "value"); but the method is not used for me
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USB drives can sometimes have DriveType
DriveType.Fixed
, but not DriveType.Removable
.
Just to make sure I wasn't missing anything, I also took your code (minus your condition Removable
and referencing drive.Name
instead drive.VolumeLabel
to get the actual drive letter) to see if I could get it to work:
JSObject js_obj;
DriveInfo[] allDrives = DriveInfo.GetDrives();
JSValue[] js_arr = new JSValue[allDrives.Count()];
int count = 0;
foreach (DriveInfo drive in allDrives)
{
if (drive.IsReady == true)
{
js_obj = new JSObject();
js_obj["Id"] = new JSValue("");
js_obj["TimeAdded"] = new JSValue("");
js_obj["DriveLetters"] = new JSValue(drive.Name);
js_obj["Port"] = new JSValue("");
js_arr[count] = new JSValue(js_obj);
count++;
}
}
foreach (var js_val in js_arr)
{
if (js_val == null)
continue;
Trace.WriteLine(js_val.GetObject()["DriveLetters"].ToString());
}
And it outputs:
C:\
S:\
T:\
Y:\
Z:\
As I expected. I'm still not sure why it doesn't work for you, but it proves the correct use JSObject
.
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