autohotkey: Cancel RButton user input after LButton pressed - scripting

Question

In an fps I am trying to setup a hotkey such that when I am holding Lbutton (leftmouse), primary fire of a gun, and then tap RButton the LButton ceases and RButton commences. Ingame with no script, for other weapons, I get the desired result automatically. That is: I'm holding LButton, but if I also hold RButton 'after', the LButton ceases and the RButton's burst fire does its thing. However a different scoped weapon, with no script, freezes up when the above is done.
So I'm looking to, as soon as RButton is pressed, cease all user input of LButton until RButton's hotkey finishes.
~RButton
;Blockinput Mouse ;Send/Sendmouse
Send, {Click Left}{Click Right}{Click Left}
;BlockInput off
return
You can think of the Rbutton script as for a scoped rifle. Click Left activates scope, Click right fires it. Currently the desired behaviour only works when I completely remove my hand from LButton and then press RButton....I am also able to get ~LButton & ~RButton:: to work but that only covers the case when they r both first pressed at the exact same time, I want to cover the instance where LButton is pressed and held before RButton.
Ive tried applying blockinput, like seen above, had the UAC workaround to get it working, blocks certain things but doesnt seem to block any heldkeys when it is proc'd like the lbutton unless I'm missing something. If there was a "Freeze user input of LButton as soon as RButton procs, until RButton's script finishes" that would solve the problem I would think. I tried adding sleep delays, but they dont seem to help. The issue seems to be that LButton, when held, continues to proc when RButton first activates.
I used the below while holding LButton, and the sound DOES proc, so this must be possible to script.
*RButton::
Soundbeep
return
EDIT:
;code here works but only with that 100 sleep where i have to remove my hand from pressing the lbutton within 100ms of pressing rbutton.
*RButton::
GetKeyState, state, lbutton, p
if (state = "D")
{
soundbeep
send {Click Left Up}
sleep 100
;i need to actually disable the previous keypresses from it
}
Send, {Click Right}{Click Left}{Click Right}
return

Answer 1

From what I understood from your question, you don't really need to block user mouse input so much as Sending a Left MouseUp command if the Left mouse button was held down. I was having difficulty understanding what the end goal you were looking for was, but I wrote this based on what I was able to understand:
#SingleInstance Force
*RButton::
Soundbeep
If (getKeyState( "lbutton", "p" )){
Click, Left, Up
Send, {Click Left}{Click Right}{Click Left}
} else {
Send, {Click Left}{Click Right}{Click Left}
}
return
esc::ExitApp
UPDATE:
Based on the clarification from the comments of the question, this should work. Understood functionality: If the right mouse button is clicked while the left mouse button is held down, release the LMB, but do not suppress the RMB input.
*~RButton::
If (getKeyState( "lbutton", "p" ))
Click, Left, Up
return
UPDATE 2:
Now releasing the LMB before the RMB is pressed. I have a feeling that whatever game that you are playing will not be able to detect zero-tick switches between keystates, so I included a Sleep function that you can fine-tune/ remove as needed.
*RButton::
If (getKeyState( "lbutton", "p" )){
Click, Left, Up
Sleep 100
}
Click, Right, Down
KeyWait RButton
Click, Right, Up
return