Hi Hamza, I think there is some confusion between the Graphics View framework (which handles the use of QGraphicsItems, which is ~98% of where pyqtgraph operates in), and QtWidgets, which are the more generic UI components. You can embed a graphics view within a QtWidget (that's how we get plots in windows), but there is no way* to put a QWidget within a Graphics View (not technically true, there is QGraphcisProxyWidget, but you want no part of that as it will kill any performance).
If you're using a GraphicsLayoutWidget, and are looking to display text within the plot, you want to be using a TextItem (which is a QGraphicsItem). LabelItem is a QWidget, which I believe is used as a helper object for ParameterTrees. In addition to the crosshair example that Martin linked, there is also the InfiniteLine example <https://github.com/pyqtgraph/pyqtgraph/blob/master/examples/InfiniteLine.py> which likely has some similar behavior to what you're looking for. On Mon, May 3, 2021 at 2:12 PM Hamza Khan <[email protected]> wrote: > Hi, > In the example of crosshair.py Window is created using > GraphicsLayoutWidget which support LabelItem. > In my code i used QVBoxLayout, wo don't know how to implement cross hair > in my code. > If you can you help i will be very thankful to you > Thanks > > On Tue, May 4, 2021, 2:06 AM Martin Chase <[email protected]> wrote: > >> Hamza, >> >> Have a look at the mouse interaction example: >> https://github.com/pyqtgraph/pyqtgraph/blob/master/examples/crosshair.py >> >> Does that get you what you need? >> >> Good luck, >> - Martin @outofculture he/him >> >> -- >> You received this message because you are subscribed to the Google Groups >> "pyqtgraph" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/pyqtgraph/CAD_p8v1eZmpXhqOL%2B7nNHr_TLn0_KZbEAzQhh%3DJw0P_k0Oab-A%40mail.gmail.com >> <https://groups.google.com/d/msgid/pyqtgraph/CAD_p8v1eZmpXhqOL%2B7nNHr_TLn0_KZbEAzQhh%3DJw0P_k0Oab-A%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to the Google Groups > "pyqtgraph" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/pyqtgraph/CAJgAyZS%2B-YpSUVepBtHMncqqZa55MVd-kC0M_i5SmesSa8CSdQ%40mail.gmail.com > <https://groups.google.com/d/msgid/pyqtgraph/CAJgAyZS%2B-YpSUVepBtHMncqqZa55MVd-kC0M_i5SmesSa8CSdQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "pyqtgraph" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/pyqtgraph/CA%2BnduTG37pGq4TNza%2Bj0_0z1%2BwmGSCQ2MfhPVew5M_wvDOnwng%40mail.gmail.com.
