How to horizontally scroll in Notepad++?
You can scroll horizontally in Notepad++ the same way(s) you scroll horizontally in any other program. A convenient way
I know the way by dragging horizontal scroll bar, but I would like more convenient way.
It depends on what you consider convenient, but there are a few options.
Scrolling with keyboard
You can usually use the Left and Right keys in combination with some modifiers in most programs. For example, Ctrl+Left/Right usually scrolls all the way or one interval. Also, PageUp and PageDown can usually be combined with Ctrl to scroll one interval horizontally instead of vertically. The same goes for Home and End (which typically scroll to the beginning or end of a line).
In the case of Notepad++ specifically, it doesn’t seem to support any of these by keyboard or via mouse. Unfortunately, even the Shortcut Mapper doesn’t seem to have any horizontal-scrolling items that can be mapped to a hotkey. You could look for a plugin, but there is an easier way:
Universal Solution
Scrolling with mouse wheel while holding Shift key pressed.
Some programs support this intrinsically and some mouse drivers/software supports it, but you easily set it up manually with AutoHotkey.
The AutoHotkey documentation already has a convenient script that lets you scroll horizontally by holding a modifier key and turning the mouse-wheel (reproduced here with Shift
instead of LControl
):
~Shift & WheelUp:: ; Scroll left
ControlGetFocus, fcontrol, A
Loop 2 ; <-- Increase this value to scroll faster.
SendMessage, 0x114, 0, 0, %fcontrol%, A ; 0x114=WM_HSCROLL; 0=SB_LINELEFT
return
~Shift & WheelDown:: ; Scroll right
ControlGetFocus, fcontrol, A
Loop 2 ; <-- Increase this value to scroll faster.
SendMessage, 0x114, 1, 0, %fcontrol%, A ; 0x114=WM_HSCROLL; 1=SB_LINERIGHT
return
You can customize and extend the script as needed; for example, you can add keyboard hotkeys, modify the scroll amount, etc.
I have lots of long lines in logs files. And I need to scroll very fast both ways: horizontally and vertically.
You can create multiple hotkeys as above to scroll a little, a medium amount, or a lot to suit your needs. You can even compile your script and run it as a background program.
Another response after the update...
If the text is in this format you should be able to do a find and replace using the following:
Set the search mode in Notepad++ to "Extended" first.
Set "Find What" to "\t\r\n" and "Replace With" left blank.
That should search and replace for the pattern TAB CR LF as in the text above.
Best Answer
This is not possible.
Notepad++ uses the Scintilla editor component which doesn't provide this feature. Yes, it will increase the horizontal scroll range but it won't reduce it.
Here's the relevant part from the documentation (emphasis mine):
Scintilla developer Neil Hodgson has repeatedly said that this feature will not be implemented due to the performance cost of dynamically determining the current widest line.
If your longest line is about 1000 characters but your scrolling range is greater, you can always close and re-open the file to reset the range to your longest line.