js_ReaScriptAPI extension

[JustSayin]

Originally Posted by Meo-Ada Mespotine

Nope, not possible. You need to find another way to link them via script.

Is this parameter-linking or what is it exactly?

No it's a question about (as it says) "a programmatic way using js_ReaScriptAPI or otherwise to open the main REAPER menu to a certain point?"

It has absolutely nothing to do with MIDI or parameter linking. That was just the menu used in the example.

The question is, once again, does anybody know a programmatic way using js_ReaScriptAPI or otherwise to open the main REAPER menu to a certain point?

[Meo-Ada Mespotine]

Originally Posted by JustSayin

No it's a question about (as it says) "a programmatic way using js_ReaScriptAPI or otherwise to open the main REAPER menu to a certain point?"

It has absolutely nothing to do with MIDI or parameter linking. That was just the menu used in the example.

The question is, once again, does anybody know a programmatic way using js_ReaScriptAPI or otherwise to open the main REAPER menu to a certain point?

Ok, to clarify:

1. No, it's not possible to open menus programmatically.

2. It looked like you wanted to influence something parameter linking-wise so I asked to possibly suggest you a different route that doesn't need to hack into a menu.
I just wanted to get your usecase, as sometimes you can achieve things in different ways. The menu-entry I never used, so I wanted to get more info about it to help.

[X-Raym]

FolderExists (like reaper.file_exists) and CopyFile( src, dest ) would be nice in this extension.

[JustSayin]

Scrolling the ReaScript console output window using

JS_Window_SetScrollPos

doesn't work.

The child window that contains the text is ID 1177 inside the ReaScript console output top level framed window.

But SetScrollPos has no effect on it. Any ideas?

[dangguidan]

reaper.JS_VKeys_GetState
Is there any way to mask this function during text input? For example, when changing the track name.

Find a way!
reaper.JS_Window_GetFocus
reaper.JS_Window_GetClassName

[vitalker]

Originally Posted by JustSayin

Scrolling the ReaScript console output window using

JS_Window_SetScrollPos

doesn't work.

The child window that contains the text is ID 1177 inside the ReaScript console output top level framed window.

But SetScrollPos has no effect on it. Any ideas?

Perhaps this code will be helpful:
https://forum.cockos.com/showpost.ph...06&postcount=4
Btw you need window with scrollbar, not the one with text. It may be not the same window.

[JustSayin]

Originally Posted by vitalker

Perhaps this code will be helpful:
https://forum.cockos.com/showpost.ph...06&postcount=4
Btw you need window with scrollbar, not the one with text. It may be not the same window.

Yes, I know how to use the function, but as I said in my post, reaper.JS_Window_SetScrollPos has no effect on the "ReaScript console output" window. Has anybody succeeded in scrolling that window?

[vitalker]

Originally Posted by JustSayin

Yes, I know how to use the function, but as I said in my post, reaper.JS_Window_SetScrollPos has no effect on the "ReaScript console output" window. Has anybody succeeded in scrolling that window?

After some investigation (+ using WinSpy) I was able to get it. JS_Window_GetScrollInfo used to check boundaries.

windowHWND = reaper.JS_Window_Find( "ReaScript console output", true )
windowHWND = reaper.JS_Window_HandleFromAddress(0xBC0D02)
retval, position, pageSize, min, max, trackPos = reaper.JS_Window_GetScrollInfo( windowHWND, "WS_VSCROLL" )
reaper.JS_Window_SetScrollPos( windowHWND, "WS_VSCROLL", 30 )

[Edgemeal]

Originally Posted by JustSayin

Scrolling the ReaScript console output window using

JS_Window_SetScrollPos

doesn't work.

The child window that contains the text is ID 1177 inside the ReaScript console output top level framed window.

But SetScrollPos has no effect on it. Any ideas?

Right, scrollbar is child of the text control so using that handle should work. What OS?

FWIW, seems to work fine here on Windows 10, example scroll up 2 lines,

hwnd = reaper.JS_Window_Find("ReaScript console output", true)
edit = reaper.JS_Window_FindChildByID(hwnd, 0x499)
_, position = reaper.JS_Window_GetScrollInfo(edit, "v")
reaper.JS_Window_SetScrollPos(edit, "v", position-2) -- scroll up 2 lines

[PMan]

Greetings.

I'm trying to set the focus to the main window from within LBX Stripper.

I don't know if this is possible, because I'm running Ubuntu 22.04 Linux...

I used to do small bits of code many years ago, but I am a total noob in this context. This is the code I came up with... (I'm sure it's full of syntax errors!):

lvar.xyz = reaper.GetMainHwnd()
JS_Window_SetFocus(lvar.xyz)

When I call it from the keyboard shortcut, I get this error:
LBX Stripper.lua:60634: attempt to call a nil value (global 'JS_Window_SetFocus')

What is the correct syntax for this?

[vitalker]

You forgot about "reaper."

[Meo-Ada Mespotine]

.. before the JS_Window_Setfocus function.

[PMan]

Success!!!

lvar.xyz = reaper.GetMainHwnd()
reaper.JS_Window_SetFocus(lvar.xyz)

does the trick!

The Reaper community ROCKS!

Thank you, vitalker, Meo-Ada Mespotine, juliansader, and LB0 - and *all* of the amazing and helpful people in the community.

[JustSayin]

Originally Posted by Edgemeal

Right, scrollbar is child of the text control so using that handle should work. What OS?

FWIW, seems to work fine here on Windows 10, example scroll up 2 lines,

hwnd = reaper.JS_Window_Find("ReaScript console output", true)
edit = reaper.JS_Window_FindChildByID(hwnd, 0x499)
_, position = reaper.JS_Window_GetScrollInfo(edit, "v")
reaper.JS_Window_SetScrollPos(edit, "v", position-2) -- scroll up 2 lines

I'm using Mac here and it definitely does not work. I have used the function to successfully scroll many other windows. Maybe @juliansader knows an answer here?

[Meo-Ada Mespotine]

Does any of the variables hwnd, edit, position yield a result? And if just some of them, which do?

[JustSayin]

Originally Posted by Meo-Ada Mespotine

Does any of the variables hwnd, edit, position yield a result? And if just some of them, which do?

m = function(s) reaper.ShowConsoleMsg(s.."\n") end
v = function(nm,t) return reaper.ValidatePtr(_G[nm],t) and nm.." is a valid "..t or "" end

reaper.ClearConsole()
for i=1,20 do m(i) end

hwnd = reaper.JS_Window_Find("ReaScript console output", true)
m(v("hwnd","HWND").." with title "..reaper.JS_Window_GetTitle(hwnd))

edit = reaper.JS_Window_FindChildByID(hwnd, 0x499)
m(v("edit","HWND"))

_, position = reaper.JS_Window_GetScrollInfo(edit, "v")
m("position = "..position)

reaper.JS_Window_SetScrollPos(edit, "v", position-10) -- scroll up some

Yields the following:

[Edgemeal]

Originally Posted by JustSayin

Yields the following:

You don't have a vertical scrollbar? (Optional setting on Mac? / REAPER?)

[JustSayin]

Originally Posted by Edgemeal

You don't have a vertical scrollbar? (Optional setting on Mac? / REAPER?)

The scrollbar appears when you scroll. It's there.

[Edgemeal]

Originally Posted by JustSayin

The scrollbar appears when you scroll. It's there.

IOW if EM_LINESCROLL works on Mac?
https://learn.microsoft.com/en-us/wi.../em-linescroll

m = function(s) reaper.ShowConsoleMsg(s.."\n") end
v = function(nm,t) return reaper.ValidatePtr(_G[nm],t) and nm.." is a valid "..t or "" end

reaper.ClearConsole()
for i=1,20 do m(i) end

hwnd = reaper.JS_Window_Find("ReaScript console output", true)
m(v("hwnd","HWND").." with title "..reaper.JS_Window_GetTitle(hwnd))

edit = reaper.JS_Window_FindChildByID(hwnd, 0x499)
m(v("edit","HWND"))

-- scoll up 10 lines
reaper.JS_WindowMessage_Send(edit, "0xB6" ,0,0, -10, 0) -- EM_LINESCROLL = 0xB6

[JustSayin]

No. EM_LINESCROLL does not work. As I said before, however, the JS scroll functions do work on Mac, just not on the ReaScript console output window. REAPER is preventing it somehow...

[vitalker]

Originally Posted by JustSayin

No. EM_LINESCROLL does not work. As I said before, however, the JS scroll functions do work on Mac, just not on the ReaScript console output window. REAPER is preventing it somehow...

Did you try my code?

[JustSayin]

Originally Posted by vitalker

Did you try my code?

Yes. As I said, it does not work on Mac.

[vitalker]

Originally Posted by JustSayin

Yes. As I said, it does not work on Mac.

You said nothing and I didn't see a response to my post. My code is different than Edgemeal's and Meo-Ada Mespotine's.

[Meo-Ada Mespotine]

Is there a way to send a keyboard-modifier to a hwnd? Something like Cmd or Shift?

[vitalker]

Originally Posted by Meo-Ada Mespotine

Is there a way to send a keyboard-modifier to a hwnd? Something like Cmd or Shift?

If it's easy for you to check, then you need
reaper.JS_WindowMessage_Post( windowHWND, message, wParam, wParamHighWord, lParam, lParamHighWord )
or
reaper.JS_WindowMessage_Send( windowHWND, message, wParam, wParamHighWord, lParam, lParamHighWord )

They say Post is betterm don't remember why.

And as a message parameter you should pass something from this list (I've scrolled to modifiers in the link):

https://github.com/justinfrankel/WDL...-types.h#L1167
https://github.com/justinfrankel/WDL...-types.h#L1184

Shift is either (VK_SHIFT or 0x10) or (FSHIFT or 0x04).

[Meo-Ada Mespotine]

Oh, thnx. Didn't know that the list contains also modifiers 🙂

[vitalker]

Originally Posted by Meo-Ada Mespotine

Oh, thnx. Didn't know that the list contains also modifiers 🙂

Me too. But sometimes you just need to dig in a little bit to find gold.

[Edgemeal]

How do you send a modifier key plus a regular key? Like Control+A ?
Got a working code example?, I can't get it to work here (Windows 10).

[raftsp]

I downloaded and installed the script js_Mouse Editing - Multi tool.lua.
But when I run it I get the error in the picture below. I tried to add via ReaPack the js_ReaScripAPI from https://github.com/ReaTeam/Extension...ster/index.xml
I closed Reaper, re-opened, re-tried but the error persists.
Am I doing something wrong?

[raftsp]

Nobody has a clue?

[nofish]

Originally Posted by raftsp

I downloaded and installed the script js_Mouse Editing - Multi tool.lua.
But when I run it I get the error in the picture below. I tried to add via ReaPack the js_ReaScripAPI from https://github.com/ReaTeam/Extension...ster/index.xml
I closed Reaper, re-opened, re-tried but the error persists.
Am I doing something wrong?

Do you see the js_ReaScriptAPI as installed in ReaPack (installed packages show an 'i' in the first column)?

[raftsp]

No, there is no 'i' in front of it. It is not installed.

[raftsp]

Ok. I installed it now. The script wants me to update SWS extensions, which I am going to do now,
Thank you.

[vitalker]

Originally Posted by Edgemeal

How do you send a modifier key plus a regular key? Like Control+A ?
Got a working code example?, I can't get it to work here (Windows 10).

Just found your code. You are saying there that if you add this snippet to some code, it will work.

Originally Posted by Edgemeal

This is crazy, I added this to that script, set the script to use a shortcut with Control key, I'm using Control+F12 and it works LOL! Its like the IDE sees the Control key is down + the V key this script is sending so it does a paste!

...
reaper.CF_SetClipboard(code) -- copy generated code to clipboard

-- sends text to IDE if open
local hWnd_IDE = reaper.JS_Window_Find(" - ReaScript Development Environment", false)
if hWnd_IDE ~= nil then
 local wdl = reaper.JS_Window_FindChildByID(hWnd_IDE, 1106) 
 reaper.JS_Window_SetFocus(wdl)
 reaper.JS_WindowMessage_Post(wdl, "WM_KEYDOWN", 0x0056, 0, 0, 0) -- V key
 reaper.JS_WindowMessage_Post(wdl, "WM_KEYUP", 0x0056, 0, 0, 0)
end

https://forum.cockos.com/showpost.ph...&postcount=161

[Edgemeal]

Originally Posted by vitalker

Just found your code. You are saying there that if you add this snippet to some code, it will work.

https://forum.cockos.com/showpost.ph...&postcount=161

Ya, If the Control key is held down manually while a script sends a key (WM_KEYDOWN/UP) then the target window receives it as Control + "the key that was sent". Depending on the target window you may not want that to happen, in a few scripts I had to check if a modifier key was down and wait until the user released them before sending char key(s) to avoid unexpected results.

But there doesn't seem to be anyway to actually send a Modifier key(s) + regular char keys using this API in a script, for example in Windows there is the SendInput function, or in .Net using SendKeys(), they allow sending any keys to the focused control of the foreground window.

[JustSayin]

@juliansader, there appears to be a bug in reaper.JS_Window_GetScrollInfo wherein at a sufficiently high horizontal zoom level, the returned position parameter is suddenly cut exactly in half. In other words, at the threshold zoom level, a change in zoom of even 10^-17 suddenly returns a position half as large.

I am not sure what the cause is, but it may be related to the sample rate?

At a sample rate of 88.2Khz, for example, it seems to happen at a zoom level (as returned and set by reaper.GetHZoomLevel / reaper.adjustZoom) around 16103? Whereas, at a sample rate of 96Khz, it seems to happen at a zoom level around 24000?

Any thoughts?

I'm on a Mac running 10.15.7 Catalina, REAPER 6.77 Intel, and JS_ReaScriptAPI 1.31 if that matters at all.

[dsyrock]

For the API "reaper.JS_VKeys_GetState(-1):byte()", it becomes ineffective when the left or right mouse button is pressed. Is there any way to solve this issue?

[Edgemeal]

Originally Posted by dsyrock

For the API "reaper.JS_VKeys_GetState(-1):byte()", it becomes ineffective when the left or right mouse button is pressed. Is there any way to solve this issue?

Maybe need to use JS_Mouse_GetState ?

  mouse_butn = reaper.JS_Mouse_GetState(-1) -- * Gets modifier keys also
  key_state  = reaper.JS_VKeys_GetState(-1)
  
  if (mouse_butn == 64) and (key_state:byte(0x75) ~= 0) then
    msg("Middle mouse button + F6 key are pressed")
  end

[dsyrock]

Originally Posted by Edgemeal

Maybe need to use JS_Mouse_GetState ?

  mouse_butn = reaper.JS_Mouse_GetState(-1) -- * Gets modifier keys also
  key_state  = reaper.JS_VKeys_GetState(-1)
  
  if (mouse_butn == 64) and (key_state:byte(0x75) ~= 0) then
    msg("Middle mouse button + F6 key are pressed")
  end

Hmm but the problem still exists. When any mouse button is held down, the value obtained by reaper.JS_VKeys_GetState will always be 0, regardless of which button is pressed.

[aspiringSynthesisingAlch]

Hi, I'm still re-learning the basics, and trying to understand the current possibilities, and limitations - this may be best queried with SWS direct, but there's a few things that I would like here, as it's through js_ & ReaPack that most of Reaper's power is being unleashed.

So I've just noticed
- Global Notes are global, it's just they're ALSO saved when projects are saved (on ctrl-s)

❓1 can js_ tell us about what's happening on project save, eg tap into reaper's internal stack to see all methods called?!

- Global Notes can also be saved (notes window context)
❓2 Can this method be called, using js_reascript?

- (from github repo) The Save method appears to be
"void NotesWnd::SaveCurrentGlobalNotes(bool _wantUndo)"
❓3 (kinda 2 again) Can js_reascriptapi use this information to call this method?
(I searched on reascript api docs but couldn't find related)

(Tangents)
-Reaper's keyboard export only seems to export CHANGED, not default, and only exports the html bindings with command name...
❓4 Is it possible to export all actions AND id's AND bindings, using js_reascript?

-Finally, Reaper has different variable types, for different states...
❓Can js_rea* get at all this? am curious as to the limitations, re: inspecting menus and menusets, screensets and more (the latter especially, as there's interest in improving the limited 1, so some dynamic loading, or even additional storage* , could be very popular and interesting...

*If resources is SWS that could be a great enhancement, wondering if the extensions that allow for reaperc# development will allow for easier addition of things like extra/custom slots-types for reaperconfig, notes, and more 🤔

Hope that's all fairly self-explanatory ... Many, many thanks to anyone able to shed any light on any of this, and to everyone that's made everything... truly wow 🙏