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我试图处理从 WACOM Intuos ART 数位板生成的 QTabletEvent 事件。

我成功使用了以下代码，但不得不将处理平板电脑事件的 QWidget 调整为完整的 Windows 桌面大小，以便从其所有表面（无论笔位于何处）接收平板电脑事件。默认情况下，平板电脑表面似乎映射到整个桌面。我想将它映射到我自己的小部件客户区。

这个怎么做 ？

import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *

class TabletSampleWindow(QWidget):
    def __init__(self, parent=None):
        super(TabletSampleWindow, self).__init__(parent)
        self.pen_is_down = False
        self.pen_x = 0
        self.pen_y = 0
        self.pen_pressure = 0
        self.text = ""
        # 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"
        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."
        else:
            self.text += " Pen is up."
        tabletEvent.accept()
        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_()
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