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使用python可以对windows系统的音量进行读取或者设置。 平台:visual studio code 语言:Python 需要的python模块: 1、pyQt5 2、cty
使用python可以对windows系统的音量进行读取或者设置。
平台:visual studio code
语言:Python
需要的python模块:
1、pyQt5
2、ctypes:
ctypes 是 Python 的外部函数库。它提供了与 C 兼容的数据类型,并允许调用 DLL 或共享库中的函数。可使用该模块以纯
Python 形式对这些库进行封装。
这里是引用
3、comtypes:
comtypes是一个基于ctypes-ffi外部函数库的纯Python COM包
这里是引用
4、pycaw
Python核心音频Windowsapi库
UI界面:
代码:
1、初始化音量接口
def init_vol(self):
"""初始化音量对应"""
# 音量对应关系
# 0% --- -65.25
# 55% --- -8.92
# 100% --- 0.0
self.volume_match={0: -65.25, 1: -56.99, 2: -51.67, 3: -47.74, 4: -44.62, 5: -42.03, 6: -39.81, 7: -37.89, 8: -36.17, 9: -34.63, 10: -33.24,
11: -31.96, 12: -30.78, 13: -29.68, 14: -28.66, 15: -27.7, 16: -26.8, 17: -25.95, 18: -25.15, 19: -24.38, 20: -23.65,
21: -22.96, 22: -22.3, 23: -21.66, 24: -21.05, 25: -20.46, 26: -19.9, 27: -19.35, 28: -18.82, 29: -18.32, 30: -17.82,
31: -17.35, 32: -16.88, 33: -16.44, 34: -16.0, 35: -15.58, 36: -15.16, 37: -14.76, 38: -14.37, 39: -13.99, 40: -13.62,
41: -13.26, 42: -12.9, 43: -12.56, 44: -12.22, 45: -11.89, 46: -11.56, 47: -11.24, 48: -10.93, 49: -10.63, 50: -10.33,
51: -10.04, 52: -9.75, 53: -9.47, 54: -9.19, 55: -8.92, 56: -8.65, 57: -8.39, 58: -8.13, 59: -7.88, 60: -7.63,
61: -7.38, 62: -7.14, 63: -6.9, 64: -6.67, 65: -6.44, 66: -6.21, 67: -5.99, 68: -5.76, 69: -5.55, 70: -5.33,
71: -5.12, 72: -4.91, 73: -4.71, 74: -4.5, 75: -4.3, 76: -4.11, 77: -3.91, 78: -3.72, 79: -3.53, 80: -3.34,
81: -3.15, 82: -2.97, 83: -2.79, 84: -2.61, 85: -2.43, 86: -2.26, 87: -2.09, 88: -1.91, 89: -1.75, 90: -1.58,
91: -1.41, 92: -1.25, 93: -1.09, 94: -0.93, 95: -0.77, 96: -0.61, 97: -0.46, 98: -0.3, 99: -0.15, 100: 0.0}
#音量值反对应
self.volume_match_2={-65.25:0, -56.99:1, -51.67:2, -47.74:3, -44.62:4, -42.03:5, -39.81:6,-37.89:7, -36.17:8, -34.63:9, -33.24:10,
-31.96:11, -30.78:12, -29.68:13, -28.66:14, -27.7:15, -26.8:16, -25.95:17, -25.15:18, -24.38:19, -23.65:20,
-22.96:21, -22.3:22, -21.66:23, -21.05:24, -20.46:25, -19.9:26, -19.35:27, -18.82:28, -18.32:29, -17.82:30,
-17.35:31, -16.88:32, -16.44:33, -16.0:34, -15.58:35,-15.16:36, -14.76:37, -14.37:38, -13.99:39, -13.62:40,
-13.26:41, -12.9:42, -12.56:43, -12.22:44,-11.89:45, -11.56:46, -11.24:47, -10.93:48, -10.63:49, -10.33:50,
-10.04:51, -9.75:52, -9.47:53, -9.19:54, -8.92:55, -8.65:56, -8.39:57, -8.13:58, -7.88:59, -7.63:60,
-7.38:61, -7.14:62, -6.9:63, -6.67:64, -6.44:65, -6.21:66, -5.99:67, -5.76:68, -5.55:69, -5.33:70,
-5.12:71,-4.91:72, -4.71:73, -4.5:74, -4.3:75, -4.11:76, -3.91:77, -3.72:78, -3.53:79, -3.34:80,
-3.15:81, -2.97:82, -2.79:83, -2.61:84, -2.43:85, -2.26:86, -2.09:87, -1.91:88, -1.75:89, -1.58:90,
-1.41:91, -1.25:92, -1.09:93, -0.93:94, -0.77:95, -0.61:96, -0.46:97, -0.3:98, -0.15:99, 0.0:100}
self.devices11=AudioUtilities.GetSpeakers()
self.interface=self.devices11.Activate(IAudioEndpointVolume._iid_,CLSCTX_ALL,None)
self.volum11=cast(self.interface,POINTER(IAudioEndpointVolume))
self.mute=self.volum11.GetMute()
电脑的音量虽然显示是一个整数,但实际的音量值是一个浮点数,就是上面代码里所列出的,从0到100的对应值。利用pycaw获取音频接口,然后激活,并将获取的输出转为C语言下的指针。
2、获取音量
vm=self.volum11.GetMasterVolumeLevel()
#print(vm)
vm2=round(vm,2)
#print(vm2)
vm3=self.volume_match_2[vm2]
#print(vm3)
#v1=self.volum11.GetVolumeRange()
#print(v1)
#return vm3
self.lbl1.setText(str(vm3))
获取音量,使用GetMasterVolumeLevel函数即可,这个函数获取的是一个浮点数,将浮点数作一下四舍五入的处理,小数点保留两位(与音量值数组对应),然后去数组里匹配,将对应的音量(整数)输出显示即可。
3、设置系统音量:
v11=int(v1)
self.sys_volume_value=self.volume_match[v11]
#print(self.sys_volume_value)
self.volum11.SetMasterVolumeLevel(self.sys_volume_value,None)
设置音量与获取音量正好是相反的过程,在UI界面上设置一个音量值(整数),将其代入第二个数组,来匹配真实音量值(浮点),然后将对应的音量值利用函数SetMasterVolumeLevel输入给电脑音频接口即可。
4、演示视频链接:
Python获取windows音量小工具
到此这篇关于Python控制windows系统音量实现实例的文章就介绍到这了,更多相关Python控制系统音量内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网!
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本文标题: Python控制windows系统音量实现实例
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