使用PyQt5从Wacom平板电脑获取数据

Question

我目前正试图从Wacom平板电脑中提取相关信息（坐标、压力等），并且已经成功地做到了这一点，但由于时钟错误，我与每个事件相关的时间戳有时是相同的或重叠的。我想看看是否有办法在PyQt5中设置最大数据速率，以便将平板电脑数据限制在一致的60或100 Hz？这将有助于在此数据上获得正确的时间戳，而不会出现波动/重复值

这是我目前的代码，感谢您的任何想法

from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5 import QtCore
import time 
import platform
import numpy as np 
import os

data = []

class TabletSampleWindow(QWidget):
    def __init__(self, parent=None):
        super(TabletSampleWindow, self).__init__(parent)
        # self.timer = QtCore.QTimer(self)
        # self.timer.timeout.connect(self.tabletEvent)
        # self.timer.start(2000)
        self.pen_is_down = False
        self.pen_x = 0
        self.pen_y = 0
        self.pen_pressure = 0
        self.text = ""
        # self.count = 0
        # Resizing the sample window to full desktop size:
        frame_rect = app.desktop().frameGeometry()
        width, height = frame_rect.width(), frame_rect.height()
        self.resize(width, height)
        self.move(-9, 0)
        self.setWindowTitle("Sample Tablet Event Handling")

    def tabletEvent(self, tabletEvent):
        self.pen_x = tabletEvent.globalX()
        self.pen_y = tabletEvent.globalY()
        self.pen_pressure = int(tabletEvent.pressure() * 100)
        if tabletEvent.type() == QTabletEvent.TabletPress:
            self.pen_is_down = True
            self.text = "TabletPress event"
        elif tabletEvent.type() == QTabletEvent.TabletMove:
            self.pen_is_down = True
            self.text = "TabletMove event"
        elif tabletEvent.type() == QTabletEvent.TabletRelease:
            self.pen_is_down = False
            self.text = "TabletRelease event"
        elif tabletEvent.type() == QTabletEvent.TabletEnterProximity:
            self.pen_is_down = False
            self.text = "TabletEnterProximity event"
        elif tabletEvent.type() == QTabletEvent.TabletLeaveProximity:
            self.pen_is_down = False
            # self.pen_x, self.pen_y, self.pen_pressure = None, None, None
            self.text = "TabletLeaveProximity event"
            
        tabletEvent.accept()
        t = time.time()
        self.text += " at x={0}, y={1}, pressure={2}%,".format(self.pen_x, self.pen_y, self.pen_pressure)
        if self.pen_is_down:
            self.text += " Pen is down. " + str(t)
        else:
            self.text += " Pen is up. " + str(t)
        data.append([t, self.pen_x, self.pen_y, self.pen_is_down, self.pen_pressure])
        self.update()

    def paintEvent(self, event):
        text = self.text
        i = text.find("\n\n")
        if i >= 0:
            text = text.left(i)
        painter = QPainter(self)
        painter.setRenderHint(QPainter.TextAntialiasing)
        painter.drawText(self.rect(), Qt.AlignTop | Qt.AlignLeft , text)

app = QApplication(sys.argv)
mainform = TabletSampleWindow()
mainform.show()
app.exec_()

# write data to file