Bug with <Alt> send commands

[wiens]

Hello,

There is a bug in AHK in combination with AutoCAD. All <Alt> send commands are blocked after using the the command acad.ActiveDocument.SendCommand
The script stops at the <Alt> send command.
Can you confirm this.

Here is to AHK code to test on:
-----------------------------------------------------------------------------
#s:: ; Windows key + s (hotkey)
acad := ComObjActive("AutoCAD.Application")
Send {Sleep 50}
acad.ActiveDocument.SendCommand("_commandlinehide`n")
Send {Sleep 50}
Send !J ; Alt functions aren't working after the command acad.ActiveDocument.SendCommand
Return
-----------------------------------------------------------------------------

[wiens]

There is a topic on this in the AutoCAD forum:
https://forums.autodesk.com/t5/autocad-forum/keyboard-shortcuts-alt/td-p/2139188
It looks like it is by design in AutoCAD.

Removing the two lines given below from the script and using <Alt> functions, it will work then in the whole script.
acad := ComObjActive("AutoCAD.Application")
acad.ActiveDocument.SendCommand("_commandlinehide`n")

It would be nice if AHK could find a solution or a workaround to use the <Alt> button with the two lines above. I want to use the .SendCommand line in the script, because it is easier and faster.

[Nextron]

I can't help with the problem, as I don't have AutoCAD, but a few remarks:
• Send {Sleep 50} sends the sleep key 50 times, it doesn't wait 50 milliseconds. Depending on your send mode it may take a lot mode or less time, and possible trigger other things.
• Send !J sends Alt+Shift+j, also probably not what you intend.

To troubleshoot; do the alt hotkeys also fail when you perform them manually? Does it make a difference if you change focus to a different gui element or minimize restore the gui?

Mod edit: Moved from Bug reports to Ask for help.

[wiens]

Breaking the script in the middle and doing the <Alt> function mnanually works.
Send !J or Send !j both works without the two lines in it.

The issue is not only with AHK, but also with VBA.