add sendtext(), update readme

add sendtext function for multi-parameter strings. Also gives option for settable delay.

README.md

@@ -31,11 +31,14 @@ pip install -e .['development']
 ```
 
 #### Connection:
-For sending a text request (remote set) several configuration options are available:
+For sending a text request (sendtext or set_rt) several configuration options are available:
 - `ip`: remote address
 - `streamname`: default 'Command1'
 - `port`: default 6990
+- `channel`: from 0 to 255
 - `bps`: bitrate of stream, default 0 should be safe for most cases.
+only applies to `sendtext`:
+- `delay`: default 0.001
 
 Pass these values as arguments to vban_cmd.connect() as show in the example below.
 
@@ -98,7 +101,6 @@ Factory function for remotes.
 ### `VbanCmd` (higher level)
 #### `vban.type`
 The kind of the Voicemeeter instance.
-
 #### `vban.version`
 A tuple of the form `(v1, v2, v3, v4)`.
 
@@ -107,6 +109,13 @@ An `InputStrip` tuple, containing both physical and virtual.
 #### `vban.bus`
 An `OutputBus` tuple, containing both physical and virtual.
 
+
+#### `vban.sendtext(cmd)`
+Sends a TEXT command, for example:
+```python
+# Use ';' or ',' for delimiters.
+vban.sendtext('Strip[0].Mute=1;Strip[3].A3=0;Bus[2].Mute=0;Bus[3].Eq.On=1')
+```
 #### `vban.show()`
 Shows Voicemeeter if it's hide. No effect otherwise.
 #### `vban.hide()`

vban_cmd/vban_cmd.py

@@ -114,8 +114,8 @@ class VbanCmd(abc.ABC):
             return data
         return fget()
 
-    def set_rt(self, id_, param, val):
+    def set_rt(self, id_, param=None, val=None):
-        cmd = f'{id_}.{param}={val}'
+        cmd = id_ if not param and val else f'{id_}.{param}={val}'
         if self._sendrequest_string_socket in self.ready_to_write:
             self._sendrequest_string_socket.sendto(
                 self._text_header.header + cmd.encode(), (socket.gethostbyname(self._ip), self._port)
@@ -123,6 +123,10 @@ class VbanCmd(abc.ABC):
             count = int.from_bytes(self._text_header.framecounter, 'little') + 1
             self._text_header.framecounter = count.to_bytes(4, 'little')
 
+    def sendtext(self, cmd):
+        self.set_rt(cmd)
+        sleep(self._delay)
+
     @property
     def type(self):
         return self.public_packet.voicemeetertype