問題描述

我從主窗口打開對話框，通過夾住鍵，我在行中填入它們的名稱.問題是我不明白你需要在哪里循環檢查所有鍵的狀態.也許還有另一種方法可以按下按鍵?或者哪里需要監聽，讓對話框不掛起，字符串更新.

I open the dialog from the main window, where by clamping the keys, I fill the line with their names. The problem is that I can not understand where you need to do a cycle of checking all the keys on their state. Maybe there is another way to get the keys pressed? Or where you need to listen to the clamping so that the dialog box does not hang and the string is updated.

MainWindow:
    def showBindings(self, param):
        from dialogs import KeyBindingsDialog
        self.dialog = KeyBindingsDialog()
        self.dialog.show()

Dialog:
class KeyBindingsDialog(QtWidgets.QDialog):
    def __init__(self, parent=None):
        super(KeyBindingsDialog, self).__init__(parent)
        self.ui = KeyBindings()
        self.ui.setupUi(self)

推薦答案

使用QKeySequenceEdit:

Use QKeySequence

from PyQt5 import QtCore, QtGui, QtWidgets

class KeySequenceEdit(QtWidgets.QKeySequenceEdit):
    def keyPressEvent(self, event):
        super(KeySequenceEdit, self).keyPressEvent(event)
        seq_string = self.keySequence().toString(QtGui.QKeySequence.NativeText)
        if seq_string:
            last_seq = seq_string.split(",")[-1].strip()
            le = self.findChild(QtWidgets.QLineEdit, "qt_keysequenceedit_lineedit")
            self.setKeySequence(QtGui.QKeySequence(last_seq))
            le.setText(last_seq)
            self.editingFinished.emit()


class Widget(QtWidgets.QWidget):
    def __init__(self, parent=None):
        super(Widget, self).__init__(parent)
        self._keysequenceedit = KeySequenceEdit(editingFinished=self.on_editingFinished)
        button = QtWidgets.QPushButton("clear", clicked=self._keysequenceedit.clear)
        hlay = QtWidgets.QHBoxLayout(self)
        hlay.addWidget(self._keysequenceedit)
        hlay.addWidget(button)

    @QtCore.pyqtSlot()
    def on_editingFinished(self):
        sequence = self._keysequenceedit.keySequence()
        seq_string = sequence.toString(QtGui.QKeySequence.NativeText)
        print("sequence: ", seq_string)

if __name__ == '__main__':
    import sys 
    app = QtWidgets.QApplication(sys.argv)
    w = Widget()
    w.show()
    sys.exit(app.exec_())

這篇關于如何在 PyQT5 對話窗口中記錄按下的組合鍵的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！