Access NPP command-line from plugin
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I want my plugin to handle a custom command line parameter.
I can use the undocumented -z parameter that @Ekopalypse kindly nudged me toward.
For -multiInst I can get the NPP command line from Win32 API (GetCommandLineW), but for mono-instances that will only work for the initial launch.
It seems that mono-instance works on subsequent launches by sending the command line parameters to the first NPP instance via WM_COPYDATA message.
Unfortunately WM_COPYDATA doesn’t appear to be forwarded to plugins “messageProc” by _pluginsManager.relayNppMessages().
Worse - currently NPP strips out the -z (+ next) parameter and doesn’t add them to the WM_COPYDATA message, so it’s not even worth hooking it directly.
I think the best solution might be to implement a new NPPN Notfication something like NPPN_PARAMETERS_CHANGED?
Is this worth my while investigating and maybe raising a pull request?
Or is there a better way!?
Cheers.
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sorry, but I don’t understand how you can start multiple mono-instances?
What did I miss? -
Apologies - I was trying to describe how NPP implements mono-instance mode…
Example…- Enable ‘mono-instance’ mode & close all NPP instances
- Launch NPP
notepad++.exe xyz.txt- Process ID = 123
- GetCommandLineW correctly shows
notepad++.exe xyz.txt
- Launch 2nd NPP instance
notepad++.exe -z -test abc.txt- Process ID = 234
- NPP 234 detects Mutex from NPP 123
- sends WM_COPYDATA to NPP 123 containing ‘abc.txt’
- kills self (234)
- NPP 123 receives WM_COPYDATA
- Opens ‘abc.txt’ alongside ‘xyz.txt’
- GetCommandLineW still just shows
notepad++.exe xyz.txt
How can I get the “-z -test” parameters from the plugin running in the mono-instanced NPP 123?
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yes I see, I guess some kind of notification, as you wrote, is needed here.
The wording NPPN_PARAMETERS_CHANGED might be a bit misleading
as the mono-instance is still reporting its parameters correctly.
Maybe NPPN_DIFFERENT_INSTANCE_MERGED?
Native speakers - what do you suggest? :-)
