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Greetings, Is possible build a script to send/receive commands in "Native Messagin" ? If you install this extension: https://chrome.google.com/webstore/detail/native-messaging-example/mefhabneoickhhbiglkmehhmemefkopf/related And this complement: https://github.com/Mandar-Shinde/Google-Chrome-Native-Messaging/releases/download/V1.0/GoogleNativeClient.exe You have a work example to send / receive messages from Google Chrome's plugin and NativeMessagingApp.exe. I found the source NativeMessagingApp.exe's here: https://github.com/Mandar-Shinde/Google-Chrome-Native-Messaging I try build this script... But not work... #Region ;**** Directives created by AutoIt3Wrapper_GUI **** #AutoIt3Wrapper_Compression=4 #AutoIt3Wrapper_Outfile=C:\Users\Public\GoogleNativeClient\NativeMessagingApp2.exe #AutoIt3Wrapper_UseUpx=y #AutoIt3Wrapper_Change2CUI=y #EndRegion ;**** Directives created by AutoIt3Wrapper_GUI **** #NoTrayIcon #include-once #include <Array.au3> #include <JSMN.au3> ; https://github.com/chechelaky/AutoIt/blob/master/JSMN.au3 #include <Debug.au3> Global $msg = "@empty" Global Const $CLIENT_START = '{"text":"Client Started"}' Global Const $CLIENT_STOP = '{"text":"Client Stopped"}' Global Const $CLIENT_CLICK = '{"text":"Client Click"}' _DebugSetup("NativeMessagingApp2", True, 4, @ScriptDir & "\NativeMessagingApp2.log", True) Global $read, $json, $out = "" If IsArray($CmdLine) Then ;~ $msg = @LF & "Google Chrome Native Messaging App V1" & @LF & @LF & _ ;~ "GPLV3 software distributed under the License is distributed on an ""AS IS"" BASIS" & @LF & _ ;~ "WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied." & @LF & _ ;~ "See the License for the specific language governing permissions and" & @LF & _ ;~ "limitations under the License." & @LF & @LF ;~ Local $size = UBound($CmdLine, 1) - 1 ;~ $msg &= "App running with args=" & $size & @LF ;~ For $ii = 0 To $size ;~ $msg &= $ii & " : " & $CmdLine[$ii] & @LF ;~ Next ;~ _DebugOut($msg) EndIf sendMessage($CLIENT_START) While Sleep(10) $read = ConsoleRead() If @error And $out Then _DebugOut("$read...............: " & $out) $json = Jsmn_decode($out) If @error Then _DebugOut("$json...............: @Error") Else _DebugOut("$json...............: @Ok") EndIf If IsObj($json) And $json.Exists("text") Then sendMessage('{"text":"' & $json.Item("text") & '"}') Else sendMessage('{"text":"@Error"}') EndIf $out = "" Else $out &= $read EndIf WEnd Func sendMessage($var) ConsoleWrite($var & @CRLF) _DebugOut("sendMessage===>" & $var) EndFunc ;==>Say Edit the file: C:\Users\Public\GoogleNativeClient\com.google.chrome.example.echo-win.json And replace: "path": "NativeMessagingApp.exe", By: "path": "NativeMessagingApp2.exe", Then plugin call the AutoIt script... But is not functional... About the file mainwindow.cpp, have this function: inline QString sendMessage(QString data){ unsigned int len = data.length(); cout.write(reinterpret_cast<const char *>(&len), 4); cout << data.toUtf8().data() << flush; return ""; } How re-write this to AutoIt? How execute a flush? Best regards.