I don't have control over the motion_cb or button_cb call backs since they may change due to a selected operation. But if I want to display the coordinates on the canvas of the mouse position independently then to query the coordinates I use CURSORPOS and screenposition to determine it without depending on the callbacks.
On Tue, Apr 21, 2020 at 6:27 PM Antonio Scuri <antonio.sc...@gmail.com> wrote: > Hi, > > I will have to do some tests here tomorrow. But the way to get mouse > coordinates in canvas is using those callbacks... > > What you are trying to do? Why you have to use CURSORPOS? > > Best, > Scuri > > > Em ter, 21 de abr de 2020 20:43, Milind Gupta <milind.gu...@gmail.com> > escreveu: > >> Hi Antonio, >> I am using CURSORPOS to determine the mouse position on the >> screen. I see that if I have a multi display setup as soon as my mouse goes >> to the other display it returns nil. There is no error message. Is there >> any particular way to handle multiple displays. >> Also is there a way to directly get the mouse position in >> terms of the canvas coordinate system. Right now I determine the screen >> position of the mouse and then find the canvas position using >> SCREENPOSITION attribute and then take the difference. Basically I want to >> directly access the x,y coordinates without depending on the motion_cb or >> button_cb. >> >> Thanks, >> Milind >> _______________________________________________ >> Iup-users mailing list >> Iup-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/iup-users >> > _______________________________________________ > Iup-users mailing list > Iup-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/iup-users >
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