# MX\_AGINTERPROC

> [HTML Version](mx_aginterproc.htm)

**xcall MIAMEX, MX\_AGINTERPROC, hwnd, agcmd, msg, status**

MX\_AGINTERPROC (MIAMEX 179) provides for sending AG commands between instances of A-Shell/Windows.

**Parameters**

_hwnd_  (B4)  \[in\]

is the target window handle (use MX\_FINDWINDOW to get it)

_agcmd_  ([Num](num.md))  \[in\]

is a value in the range of 1 to 99 corresponding to the AG\_xxx functions.

_msg_  ([String](string.md))  \[in\]

is the text string normally following the AG\_xxx function (must be terminated with chr(127)\!\!\!

_status_  (Signed [Num](num.md))  \[out\]

returns a status code indicating the success of the operation:

| **Status** | **Meaning** |
|------|------|
| 1 | OK (target received and processed msg) |
| 0 | No response from target |
| \-1 | Target received msg but rejected it as invalid |
| \-2 | Missing trailing chr(127) on message |
| \-3 | Target HWND not found |