Middle Mouse Scroll?

[NancyM]

I don't see a function to just scroll the middle mouse button. I've got a screen where it seems the only way to scroll is via the mouse button. Am I missing something obvious? (Probably...)

I can't seem to get page-up/page-down to scroll in this application.

[JRL]

Perhaps you need to actually select the screen before you can use keys to move around the screen. If the pages keys won't work have you tried the arrow keys? Or sometimes the app requires a ctrl or alt key with the page or arrow key.

[Marcus Tettmar]

I'm surprised you can't page up/down.

Maybe you can use Keybd_Event and VK_MBUTTON, though I'm not sure what other parameters are needed to signify direction.

[NancyM]

It is a weird application. It looks like maybe there's a window frame on top of the window I want to scroll and it always has the focus. There are a bunch of buttons on the bottom and one of them is always highlighted, even after I click on the window I want to scroll. So frustrating!

I guess I will have to resort to setting up some sort of a tab map. There are more than 60 fields I have to interact with and the tabbing isn't intuitive at all. It jumps around illogically.

Sadly there isn't a section of the screen I can anchor to using the image recognition to that doesn't scroll off.

[NancyM]

Perhaps you need to actually select the screen before you can use keys to move around the screen. If the pages keys won't work have you tried the arrow keys? Or sometimes the app requires a ctrl or alt key with the page or arrow key.

I've tried paging, arrows, CTRL/ALT with paging arrows (those select tabs).

[JRL]

Here is a sample script that opens Notepad, writes a few hundred lines of text, then calls the mouse_event API using the LibFunc> command to scroll up.


In the line "LibFunc>user32,mouse_event,MERes,2048,0,0,120,0" The number "2048" tells the function to use the scroll wheel, "0,0" are x and y mouse coordinates though I have not yet figured out their usefulness. That said the cursor does need to be moved to sit over the window client area when the function is called. I used MouseMove> to move the mouse cursor to a client area location The "120" is the scroll amount with 120 being the max. 120 seems to be equivalent to one "click" on my wheel mouse. a positive number scrolls up and a negative number scrolls down. Control the scroll amount by changing the number of iterations in the "kk" repeat loop.

Any questions?

Code: Select all

RunProgram>Notepad.exe
WaitWindowOpen>Untitled - Notepad*
Wait>2
MoveWindow>Notepad*,0,0

SetFocus>Notepad*

Let>k=0
Repeat>k
  Add>k,1
  Send>%k%%crlf%
Until>k=200
Wait>1

MouseMove>100,400
SetFocus>Notepad*
Wait>2

Let>kk=0
Repeat>kk
  Add>kk,1
  LibFunc>user32,mouse_event,MERes,2048,0,0,120,0
Until>kk=100

Wait>1

**BREAKPOINT**

[NancyM]

Interesting! That might work for me. I will give it a shot. Thanks!

[NancyM]

Woo hoo! It works! Thanks so much.