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Python / Lua Script: Detect if a modifier is pressed when running a script

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  • C
    Claudia Frank
    last edited by Apr 3, 2017, 1:58 AM

    Yaron,

    this seems to be my waterloo in terms of understanding bitwise operations.
    I always confuse when to use OR and when XOR.

    So, just to clarify, this works?

    if (exStyle & WS_EX_LAYOUTRTL):
        console.write('exStyle & WS_EX_LAYOUTRTL: {}\n'.format('exStyle & WS_EX_LAYOUTRTL'))
        exStyle = exStyle ^ WS_EX_LAYOUTRTL
    else:
        console.write('exStyle | WS_EX_LAYOUTRTL:{}\n'.format(exStyle | WS_EX_LAYOUTRTL))
        exStyle = exStyle | WS_EX_LAYOUTRTL
    windll.user32.SetWindowLongA(python_script_sci_handle, GWL_EXSTYLE, exStyle);
    console.write('test\n')
    

    Cheers
    Claudia

    1 Reply Last reply Reply Quote 0
    • C
      Claudia Frank
      last edited by Apr 3, 2017, 2:05 AM

      and there seem to be a trap. The console changes it output only if something is
      written to the output. So the initial state will be RTL until something gets written.

      Cheers
      Claudia

      1 Reply Last reply Reply Quote 0
      • Y
        Yaron
        last edited by Apr 3, 2017, 2:13 AM

        So, just to clarify, this works?

        Yes, it does.

        and there seem to be a trap. The console changes it output only if something is
        written to the output. So the initial state will be RTL until something gets written.

        If I put the code in startup.py it doesn’t work even after writing to the console.

        Thanks again. :)

        1 Reply Last reply Reply Quote 0
        • C
          Claudia Frank
          last edited by Apr 3, 2017, 2:22 AM

          Strange - works for me.
          Could it be that you already have some ctypes based code in startup.py ?
          Variable overwriting?
          May you share your startup.py ?
          Or maybe comment everything except the LTR code if you have already ctypes code.

          Cheers
          Claudia

          1 Reply Last reply Reply Quote 0
          • Y
            Yaron
            last edited by Apr 3, 2017, 2:25 AM

            Claudia,

            Strange - works for me.

            Do you mean the output is RTL when you open the console?

            I’ve removed my other code for testing it.

            Actually I don’t need it on startup. I can write a “Show Console” script.

            Thank you.

            C 1 Reply Last reply Apr 3, 2017, 2:27 AM Reply Quote 0
            • C
              Claudia Frank @Yaron
              last edited by Claudia Frank Apr 3, 2017, 2:28 AM Apr 3, 2017, 2:27 AM

              Do you mean the output is RTL when you open the console?

              yes, on my side it is.

              When I run a second time from my test script it doesn’t change until
              another write statement happens, then it is back to LTR.

              Cheers
              Claudia

              1 Reply Last reply Reply Quote 0
              • Y
                Yaron
                last edited by Apr 3, 2017, 2:29 AM

                Interesting.

                May you share your startup.py ?

                I missed that. Sorry.

                # The lines up to and including sys.stderr should always come first
                # Then any errors that occur later get reported to the console
                # If you'd prefer to report errors to a file, you can do that instead here.
                import sys
                from Npp import *
                
                # Set the stderr to the normal console as early as possible, in case of early errors
                sys.stderr = console
                
                # Define a class for writing to the console in red
                class ConsoleError:
                	def __init__(self):
                		global console
                		self._console = console;
                
                	def write(self, text):
                		self._console.writeError(text);
                
                # Set the stderr to write errors in red
                sys.stderr = ConsoleError()
                
                # This imports the "normal" functions, including "help"
                import site
                
                # This sets the stdout to be the currently active document, so print "hello world",
                # will insert "hello world" at the current cursor position of the current document
                sys.stdout = editor
                
                ##################################################
                
                
                from ctypes import windll, byref, wintypes, WINFUNCTYPE, Structure, sizeof
                
                WNDENUMPROC = WINFUNCTYPE(wintypes.BOOL,
                                          wintypes.HWND,
                                          wintypes.LPARAM)
                
                
                python_script_hwnd = None
                python_script_sci_handle = None
                
                GWL_EXSTYLE = -20
                WS_EX_LAYOUTRTL = 0x00400000
                
                def EnumCallback(hwnd, lparam):
                    global python_script_hwnd
                    global python_script_sci_handle
                    
                    curr_class = (wintypes.WCHAR * 256)()
                    curr_name = (wintypes.WCHAR * 256)()
                   
                    windll.user32.GetClassNameW(hwnd, curr_class, 256)
                    windll.user32.GetWindowTextW(hwnd, curr_name, 256)
                
                    if curr_name.value.lower() == 'python script':
                        python_script_hwnd = hwnd
                    else:
                        if python_script_hwnd is not None:
                            if curr_class.value.lower() == 'scintilla':
                                if windll.user32.GetParent(hwnd) == python_script_hwnd:
                                    python_script_sci_handle = hwnd
                                    return False
                       
                    return True
                
                parent = windll.user32.FindWindowA('Notepad++', None)
                windll.user32.EnumChildWindows(parent, WNDENUMPROC(EnumCallback), 0)
                windll.user32.EnumChildWindows(python_script_hwnd, WNDENUMPROC(EnumCallback), 0)
                
                exStyle = windll.user32.GetWindowLongA(python_script_sci_handle, GWL_EXSTYLE)
                
                if (exStyle & WS_EX_LAYOUTRTL):
                    console.write('exStyle & WS_EX_LAYOUTRTL: {}\n'.format('exStyle & WS_EX_LAYOUTRTL'))
                    exStyle = exStyle ^ WS_EX_LAYOUTRTL
                else:
                    console.write('exStyle | WS_EX_LAYOUTRTL:{}\n'.format(exStyle | WS_EX_LAYOUTRTL))
                    exStyle = exStyle | WS_EX_LAYOUTRTL
                windll.user32.SetWindowLongA(python_script_sci_handle, GWL_EXSTYLE, exStyle);
                console.write('test\n')
                

                Thank you.

                1 Reply Last reply Reply Quote 0
                • Y
                  Yaron
                  last edited by Apr 3, 2017, 2:35 AM

                  When I run a second time from my test script it doesn’t change until
                  another write statement happens, then it is back to LTR.

                  On my machine it changes immediately. It’s gibberish until writing again.

                  Thanks.

                  C 1 Reply Last reply Apr 3, 2017, 2:39 AM Reply Quote 0
                  • C
                    Claudia Frank @Yaron
                    last edited by Apr 3, 2017, 2:39 AM

                    Yaron,

                    strange - might be linux/windows related.
                    I’ve copied your startup.py - cleaned mine (commented everything)
                    and now I have your behavior. Phew …

                    Yaron, it is already half past 4 here and I have to go to late shift today.
                    Need to have some sleep ;-) I will follow up on this in ~16 hours.
                    Maybe earlier if we don’t have to do much at work and I can have look.

                    Good night.
                    Cheers
                    Claudia

                    1 Reply Last reply Reply Quote 0
                    • Y
                      Yaron
                      last edited by Apr 3, 2017, 2:45 AM

                      Claudia,

                      Thank you very much. You are great!

                      default

                      Sorry for keeping you up so late.
                      Sleep well and have a nice day. :)

                      1 Reply Last reply Reply Quote 1
                      • C
                        Claudia Frank
                        last edited by Apr 3, 2017, 2:46 AM

                        Thank you :-D

                        Did some last test - looks like it a
                        console.show()
                        before the code
                        and if you wish
                        console.hide()
                        afterwards does the trick.

                        Good night.

                        Cheers
                        Claudia

                        1 Reply Last reply Reply Quote 0
                        • Y
                          Yaron
                          last edited by Apr 3, 2017, 2:50 AM

                          Very nice.

                          Thanks again. Highly appreciated.

                          Good night. :)

                          1 Reply Last reply Reply Quote 0
                          • C
                            Claudia Frank
                            last edited by Apr 3, 2017, 10:46 PM

                            Yaron,

                            did try to understand what the difference could be but …
                            While investigating the python script code I assume I found what needs to be changed in
                            order to force a LTR layout.

                            The file StaticDialog.cpp has a function makeRTLResource.
                            Within the function there is this if condition

                            if (pMyDlgTemplateEx->signature == 0xFFFF)
                            	pMyDlgTemplateEx->exStyle |= WS_EX_LAYOUTRTL;
                            else
                            	(*ppMyDlgTemplate)->dwExtendedStyle |= WS_EX_LAYOUTRTL;
                            

                            what about giving a try to use

                            if (pMyDlgTemplateEx->signature == 0xFFFF)
                            	pMyDlgTemplateEx->exStyle;
                            else
                            	(*ppMyDlgTemplate)->dwExtendedStyle;
                            

                            Yaron, sorry, I would love to see why our machines behave differently but without a debugging environment it’s hard to track down the issue maybe this little code change is a better alternative.

                            Cheers
                            Claudia

                            1 Reply Last reply Reply Quote 0
                            • Y
                              Yaron
                              last edited by Apr 4, 2017, 4:02 AM

                              Hello Claudia,

                              did try to understand what the difference could be but …
                              …
                              I would love to see why our machines behave differently but without a debugging environment it’s hard to track down the issue…

                              I apologize for not being clear enough in my last post.
                              In “Very nice” I meant to confirm the issue was solved by adding console.show(). :)

                              The file StaticDialog.cpp has a function makeRTLResource.
                              Within the function there is this if condition

                              Thank you very much for that too.
                              A couple of years ago Dave uploaded a PythonScript v1.1.1 without committing the changes.
                              As your script works perfectly, I’d rather keep using v1.1.1.

                              Many thanks again for your kind help. I do appreciate it.

                              Best regards.

                              1 Reply Last reply Reply Quote 0
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