Pyqt獲取windows系統中已安裝軟件列表

2019-11-14 17:14:17

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開始之前的基礎知識

1. 獲取軟件列表

在Python的標準庫中，_winreg可以操作Windows的注冊表。
獲取已經安裝的軟件列表一般是讀去windows的注冊表： SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall
讀取注冊表循環出list
正則出 “DisplayIcon” 包含“exe” 或 “ico”

 1         key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall", 0, _winreg.KEY_ALL_access) 2         for i in xrange(0, _winreg.QueryInfoKey(key)[0]-1): 3             DisplayName = '' 4             DisplayIcon = '' 5             try: 6                  key_name_list =_winreg.EnumKey(key, i) 7                  each_key_path = "SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall"+'//'+key_name_list 8                  each_key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, each_key_path, 0, _winreg.KEY_ALL_ACCESS) 9                  DisplayName, REG_SZ = _winreg.QueryValueEx(each_key, "DisplayName")10                  DisplayName = DisplayName.encode('utf-8')11                  try:12                      DisplayIcon, REG_SZ = _winreg.QueryValueEx(each_key,"DisplayIcon")13                      DisplayIcon = DisplayIcon.encode('utf-8')14                  except WindowsError:15                      pass16                  #注冊表中同時滿足DisplayName 和 DisplayIcon17                  if DisplayName and DisplayIcon:18                      result = self.orderDict(str(i), DisplayName, DisplayIcon)19             except WindowsError:20                 pass

2.從exe中獲取Icon資源

獲取到了軟件的列表，現在要把列表展示出來，肯定要查看軟件的Icon了，所以要從已有的“DisplayIcon” 包含“exe”中讀取exe的Icon
通過win32ui，win32gui 來獲取exe中的Icon資源

 1 large, small = win32gui.ExtractIconEx(self.numreg[key]['exe'], 0) 2 self.pixmap = QtGui.QPixmap.fromWinHBITMAP(self.bitmapFromHIcon(large[0]), 2) 3 def bitmapFromHIcon(self, hIcon): 4         hdc = win32ui.CreateDCFromHandle(win32gui.GetDC(0)) 5         hbmp = win32ui.CreateBitmap() 6         hbmp.CreateCompatibleBitmap(hdc, 32, 32) 7         hdc = hdc.CreateCompatibleDC() 8         hdc.SelectObject(hbmp) 9         hdc.DrawIcon((0, 0), hIcon)10         hdc.DeleteDC()11         return hbmp.GetHandle()

3.QListWidget的Icon模型，與獲取item值

在QListWidget 中setViewMode 設置查看的模型中為IconMode ，才可以指定顯示的Icon

1         self.contentsWidget = QtGui.QListWidget()2         self.contentsWidget.setViewMode(QtGui.QListView.IconMode)3         self.contentsWidget.setIconSize(QtCore.QSize(96, 84))  #Icon 大小4         self.contentsWidget.setMovement(QtGui.QListView.Static)  #Listview不讓列表拖動5         self.contentsWidget.setMaximumWidth(800)  # 最大寬度6         self.contentsWidget.setSpacing(15)  # 間距大小

需要獲取QListWidget中item。首先要在定義QlistWidgetItem的時候setData 值

Atem=QtGui.QListWidgetItem(self.contentsWidget)exeMenu=‘data_string’Atem.setData(QtCore.Qt.UserRole, exeMenu)

獲取：

item = self.contentsWidget.currentItem()location = item.data(QtCore.Qt.UserRole)Obj= location.toPyObject()PRint(Obj)

4.打開exe文件或目錄

打開文件和目錄參考： http://www.survivalescaperooms.com/dcb3688/p/4463670.html

        if Obj and os.path.exists(Obj):  #文件or 目錄存在            if os.path.isfile(Obj):                import win32process                try:                    win32process.CreateProcess(str(Obj), '',None , None , 0 ,win32process. CREATE_NO_WINDOW , None , None ,win32process.STARTUPINFO())                except Exception, e:                    print(e)            else:                os.startfile(str(Obj))        else:  # 不存在的目錄            QtGui.QMessageBox.warning(self, (u'提示'),(u'無法打開不存在的目錄！'),QtGui.QMessageBox.Yes)

完整代碼如下：

  1 # -*- coding: UTF8 -*-  2 from PyQt4 import QtCore, QtGui  3 import _winreg  4 import re, sys, os, rcc  5 import win32ui  6 import win32gui  7 reload(sys)  8 sys.setdefaultencoding("utf-8")  9 class ListDialog(QtGui.QDialog): 10     def __init__(self, parent=None): 11         super(ListDialog, self).__init__(parent) 12  13         self.contentsWidget = QtGui.QListWidget() 14         self.contentsWidget.setViewMode(QtGui.QListView.IconMode) 15         self.contentsWidget.setIconSize(QtCore.QSize(96, 84))  #Icon 大小 16         self.contentsWidget.setMovement(QtGui.QListView.Static)  #Listview不讓列表拖動 17         self.contentsWidget.setMaximumWidth(800)  # 最大寬度 18         self.contentsWidget.setSpacing(15)  # 間距大小 19  20         winrege= winregeditor() 21         self.numreg=winrege.getreg() 22         for key in self.numreg.keys(): 23             Atem=QtGui.QListWidgetItem(self.contentsWidget) 24             try:  # ico 來自exe 25                 large, small = win32gui.ExtractIconEx(self.numreg[key]['exe'], 0) 26                 exeMenu=self.numreg[key]['exe'] 27                 win32gui.DestroyIcon(small[0]) 28                 self.pixmap = QtGui.QPixmap.fromWinHBITMAP(self.bitmapFromHIcon(large[0]), 2) 29             except Exception,e:  #ico 來自 icon 30                 if self.numreg[key].has_key('icon') and os.path.isfile(self.numreg[key]['icon']):  # 判斷ico文件是否存在 31                     self.pixmap = QtGui.QPixmap(self.numreg[key]['icon']) 32                     iconMenu = self.numreg[key]['icon'] 33                     split = iconMenu.split('//') 34                     exeMenu ='//'.join(split[:-1]) 35                 else:  # 不存在ico文件給定默認圖標 36                     self.pixmap = ':default.png' 37                     exeMenu = '' 38  39             Atem.setIcon(QtGui.QIcon(self.pixmap)) 40             Atem.setFlags(QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled) 41             Atem.setTextAlignment(QtCore.Qt.AlignHCenter) 42             Atem.setData(QtCore.Qt.UserRole, exeMenu) 43             DisplayName=self.numreg[key]['DisplayName'].encode('utf-8') 44             Atem.setToolTip(u""+DisplayName)  # tip 顯示 45             if len(DisplayName)>=6: 46                 DisplayName=DisplayName.decode('utf8')[0:6].encode('utf8')+'…' 47             Atem.setText(u""+DisplayName) 48              49              50         horizontalLayout = QtGui.QHBoxLayout() 51         horizontalLayout.addWidget(self.contentsWidget) 52         mainLayout = QtGui.QVBoxLayout() 53         mainLayout.addLayout(horizontalLayout) 54         self.setLayout(mainLayout) 55         self.setWindowTitle(u'Pyqt 顯示已安裝軟件列表') 56         self.setWindowIcon(QtGui.QIcon(':favicon.ico')) 57         self.resize(600, 300) 58         self.contentsWidget.itemDoubleClicked.connect(self.DoubleClicked)  #雙擊事件 59          60          61     # 當窗體大小改變后重新繪制窗體   重新排列Icon效果 62     def paintEvent(self,event): 63         mw = self.geometry() 64         width=mw.width()  # 獲取窗體寬度 65         self.contentsWidget.setViewMode(QtGui.QListView.IconMode) 66         self.contentsWidget.setIconSize(QtCore.QSize(96, 84))  #Icon 大小 67         self.contentsWidget.setMaximumWidth(width) 68         self.contentsWidget.setSpacing(12)  # 間距大小 69     # win32 獲取exe 資源 70     def bitmapFromHIcon(self, hIcon): 71         hdc = win32ui.CreateDCFromHandle(win32gui.GetDC(0)) 72         hbmp = win32ui.CreateBitmap() 73         hbmp.CreateCompatibleBitmap(hdc, 32, 32) 74         hdc = hdc.CreateCompatibleDC() 75         hdc.SelectObject(hbmp) 76         hdc.DrawIcon((0, 0), hIcon) 77         hdc.DeleteDC() 78         return hbmp.GetHandle() 79     # 雙擊事件 80     def DoubleClicked(self): 81         item = self.contentsWidget.currentItem()   # 獲取當前item   <PyQt4.QtGui.QListWidgetItem object at 0x01775E40> 82         location = item.data(QtCore.Qt.UserRole)    # 獲取item里面的data  <PyQt4.QtCore.QVariant object at 0x018FD9B0> 83         Obj= location.toPyObject() 84         if Obj and os.path.exists(Obj):  #文件or 目錄存在 85             if os.path.isfile(Obj): 86                 import win32process 87                 try: 88                     win32process.CreateProcess(str(Obj), '',None , None , 0 ,win32process. CREATE_NO_WINDOW , None , None ,win32process.STARTUPINFO()) 89                 except Exception, e: 90                     print(e) 91             else: 92                 os.startfile(str(Obj)) 93  94         else:  # 不存在的目錄 95             QtGui.QMessageBox.warning(self, (u'提示'),(u'無法打開不存在的目錄！'),QtGui.QMessageBox.Yes) 96  97          98          99         100 # 注冊表操作101 class winregeditor:102     dicList = {}103 104     def orderDict(self, numkey, DisplayName, DisplayIcon):105         self.dicList[numkey] = {'DisplayName': DisplayName, 'DisplayIcon': DisplayIcon}106         exeIcon = re.compile('.*exe')107         match = exeIcon.match(DisplayIcon)108         if match: #匹配到exe， 可直接打開109             self.dicList[numkey]['exe'] = match.group()110         else:  # 沒有exe，Icon可為ico 文件111             self.dicList[numkey]['icon'] =DisplayIcon112         return self.dicList113 114 115     def getreg(self):116         key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall", 0, _winreg.KEY_ALL_ACCESS)117         for i in xrange(0, _winreg.QueryInfoKey(key)[0]-1):118             DisplayName = ''119             DisplayIcon = ''120             try:121                  key_name_list =_winreg.EnumKey(key, i)122                  each_key_path = "SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall"+'//'+key_name_list123                  each_key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, each_key_path, 0, _winreg.KEY_ALL_ACCESS)124                  DisplayName, REG_SZ = _winreg.QueryValueEx(each_key, "DisplayName")125                  DisplayName = DisplayName.encode('utf-8')126                  try:127                      DisplayIcon, REG_SZ = _winreg.QueryValueEx(each_key,"DisplayIcon")128                      DisplayIcon = DisplayIcon.encode('utf-8')129                  except WindowsError:130                      pass131                  #注冊表中同時滿足DisplayName 和 DisplayIcon132                  if DisplayName and DisplayIcon:133                      result = self.orderDict(str(i), DisplayName, DisplayIcon)134             except WindowsError:135                 pass136 137         return result138 139 140 141          142 if __name__ == '__main__':143     app = QtGui.Qapplication(sys.argv)144     dialog = ListDialog()145     dialog.show()146     sys.exit(app.exec_())