python wxwidgets 设置波特率可选
时间: 2024-09-20 09:09:34 浏览: 42
在使用 wxWidgets 框架构建的 Python 程序中,如果你想让用户能够选择串口通信的波特率,你可以创建一个包含不同波特率选项的下拉菜单或选择框。以下是一个简单的例子,展示了如何使用 `wx.Choice` 或 `wx.ComboBox` 来实现这个功能:
```python
import wx
class SerialPortOptionsPanel(wx.Panel):
def __init__(self, parent):
super().__init__(parent)
self.port_rate_choices = [9600, 19200, 38400, 57600, 115200] # 可供选择的波特率列表
serial_box_sizer = wx.BoxSizer(wx.HORIZONTAL)
self.port_rate_label = wx.StaticText(self, label="Port Rate:")
serial_box_sizer.Add(self.port_rate_label, 0, wx.LEFT | wx.RIGHT, 10)
self.port_rate_choice = wx.Choice(self, choices=self.port_rate_choices)
serial_box_sizer.Add(self.port_rate_choice, 1, wx.EXPAND)
# 如果需要更复杂的选择框可以改用 wx.ComboBox
# self.port_rate_choice = wx.ComboBox(self, choices=self.port_rate_choices, style=wx.CB_READONLY)
# 绑定选择事件,以便实际应用设置
self.port_rate_choice.Bind(wx.EVT_CHOICE, self.OnRateChoiceSelected)
self.SetSizer(serial_box_sizer)
self.Fit()
def OnRateChoiceSelected(self, event):
selected_rate = int(self.port_rate_choice.GetStringSelection())
print(f"Selected port rate: {selected_rate} bps")
# 主程序中使用
class MainFrame(wx.Frame):
def __init__(self):
super().__init__(None, title="Serial Port Options Example", size=(400, 200))
options_panel = SerialPortOptionsPanel(self)
# ...其他布局...
if __name__ == "__main__":
app = wx.App()
frame = MainFrame()
frame.Show()
app.MainLoop()
```
在这个示例中,用户从列表中选择一个波特率后,`OnRateChoiceSelected` 函数会被触发,显示所选的波特率。
阅读全文
相关推荐














