Set global cursor postion using uinput

[Ivan219]

Hello, I use uinput on Python to emulate mouse and keyboard. When I emulate mouse I can move the cursor to the number of pixels, and how to set global position of cursor?
I use:

Code: Select all

for i in range(2):
        device.emit(uinput.REL_X, 5)
        device.emit(uinput.REL_Y, 5)

[jojopi]

A mouse has no absolute position. It reports relative motion only.

If you mean the position of the mouse cursor on the GUI desktop, you should be using xlib functions rather than uinput. However, note that "man XWarpPointer" says "There is seldom any reason for calling this function. The pointer should normally be left to the user."

If your ultimate goal is to automate some manual task, rather than merely annoy the user, there is usually a better way to do it than by faking human input. Remember that almost all the programs in Raspbian are Open Source, so if necessary you can even modify them.

[Ivan219]

Okey, and the last question how to write special keys (&$%№"#) and cyrillic symbols using uinput?

[jojopi]

Keyboards do not send symbols to the computer, they report the pressing and releasing of keys using arbitrary codes based largely on the physical positions.

uinput gives the physical keys names like KEY_Q according to the main character they would type in a US layout. If your Raspbian is set for a Russian layout then KEY_Q may actually type Й.

To get shifted symbols like № you have to simulate pressing KEY_3 while simulating holding KEY_LEFTSHIFT or KEY_RIGHTSHIFT. For some symbols you may need to hold KEY_RIGHTALT.

Again, uinput is very low level and leaves the handling of layouts up to you. It also makes it very difficult to direct the simulated events to a particular program. If it is an X11 client you are trying to control, XSendEvent from xlib may be a better option. I have no experience using that from Python, though.

[Ivan219]

Okey, I unsderstand you. I try to change language on raspberry pi use uinput, in normal mode (from real-keyboard) I use Shift+Alt. And I try it with uinput, but it doesn't work. What could be the problem?

Code: Select all

device.emit_combo([uinput.KEY_LEFTALT, uinput.KEY_LEFTSHIFT])

[Ivan219]

May be problem because I use VNC?

[Ivan219]

Yes, problem was because I use VNC, when I use keyboard on Raspberry pi directly all works right.