开始之前的基础知识
1. 获取软件列表
在Python的标准库中，_winreg可以操作Windows的注册表。
获取已经安装的软件列表一般是读去windows的注册表： SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
读取注册表循环出list
正则出 “DisplayIcon” 包含“exe” 或 “ico”
key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall", 0, _winreg.KEY_ALL_ACCESS)
for i in xrange(0, _winreg.QueryInfoKey(key)[0]-1):
DisplayName = ''
DisplayIcon = ''
try:
key_name_list =_winreg.EnumKey(key, i)
each_key_path = "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall"+'\\'+key_name_list
each_key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, each_key_path, 0, _winreg.KEY_ALL_ACCESS)
DisplayName, REG_SZ = _winreg.QueryValueEx(each_key, "DisplayName")
DisplayName = DisplayName.encode('utf-8')
try:
DisplayIcon, REG_SZ = _winreg.QueryValueEx(each_key,"DisplayIcon")
DisplayIcon = DisplayIcon.encode('utf-8')
except WindowsError:
pass
#注册表中同时满足DisplayName 和 DisplayIcon
if DisplayName and DisplayIcon:
result = self.orderDict(str(i), DisplayName, DisplayIcon)
except WindowsError:
pass
2.从exe中获取Icon资源
获取到了软件的列表，现在要把列表展示出来，肯定要查看软件的Icon了，所以要从已有的“DisplayIcon” 包含“exe”中读取exe的Icon
通过win32ui，win32gui 来获取exe中的Icon资源
large, small = win32gui.ExtractIconEx(self.numreg[key]['exe'], 0)
self.pixmap = QtGui.QPixmap.fromWinHBITMAP(self.bitmapFromHIcon(large[0]), 2)
def bitmapFromHIcon(self, hIcon):
hdc = win32ui.CreateDCFromHandle(win32gui.GetDC(0))
hbmp = win32ui.CreateBitmap()
hbmp.CreateCompatibleBitmap(hdc, 32, 32)
hdc = hdc.CreateCompatibleDC()
hdc.SelectObject(hbmp)
hdc.DrawIcon((0, 0), hIcon)
hdc.DeleteDC()
return hbmp.GetHandle()
3.QListWidget的Icon模型，与获取item值
在QListWidget 中setViewMode 设置查看的模型中为IconMode ，才可以指定显示的Icon
self.contentsWidget = QtGui.QListWidget()
self.contentsWidget.setViewMode(QtGui.QListView.IconMode)
self.contentsWidget.setIconSize(QtCore.QSize(96, 84)) #Icon 大小
self.contentsWidget.setMovement(QtGui.QListView.Static) #Listview不让列表拖动
self.contentsWidget.setMaximumWidth(800) # 最大宽度
self.contentsWidget.setSpacing(15) # 间距大小
需要获取QListWidget中item。 首先要在定义QlistWidgetItem的时候setData 值
Atem=QtGui.QListWidgetItem(self.contentsWidget)
exeMenu=‘data_string’
Atem.setData(QtCore.Qt.UserRole, exeMenu)
获取：
item = self.contentsWidget.currentItem()
location = item.data(QtCore.Qt.UserRole)
Obj= location.toPyObject()
print(Obj)
4.打开exe文件或目录
打开文件和目录参考： http://www.cnblogs.com/dcb3688/p/4463670.html
if Obj and os.path.exists(Obj): #文件or 目录存在
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: # 不存在的目录
QtGui.QMessageBox.warning(self, (u'提示'),(u'无法打开不存在的目录！'),QtGui.QMessageBox.Yes)
完整代码如下：
# -*- coding: UTF8 -*-
from PyQt4 import QtCore, QtGui
import _winreg
import re, sys, os, rcc
import win32ui
import win32gui
reload(sys)
sys.setdefaultencoding("utf-8")
class ListDialog(QtGui.QDialog):
def __init__(self, parent=None):
super(ListDialog, self).__init__(parent) self.contentsWidget = QtGui.QListWidget()
self.contentsWidget.setViewMode(QtGui.QListView.IconMode)
self.contentsWidget.setIconSize(QtCore.QSize(96, 84)) #Icon 大小
self.contentsWidget.setMovement(QtGui.QListView.Static) #Listview不让列表拖动
self.contentsWidget.setMaximumWidth(800) # 最大宽度
self.contentsWidget.setSpacing(15) # 间距大小 winrege= winregeditor()
self.numreg=winrege.getreg()
for key in self.numreg.keys():
Atem=QtGui.QListWidgetItem(self.contentsWidget)
try: # ico 来自exe
large, small = win32gui.ExtractIconEx(self.numreg[key]['exe'], 0)
exeMenu=self.numreg[key]['exe']
win32gui.DestroyIcon(small[0])
self.pixmap = QtGui.QPixmap.fromWinHBITMAP(self.bitmapFromHIcon(large[0]), 2)
except Exception,e: #ico 来自 icon
if self.numreg[key].has_key('icon') and os.path.isfile(self.numreg[key]['icon']): # 判断ico文件是否存在
self.pixmap = QtGui.QPixmap(self.numreg[key]['icon'])
iconMenu = self.numreg[key]['icon']
split = iconMenu.split('\\')
exeMenu ='\\'.join(split[:-1])
else: # 不存在ico文件给定默认图标
self.pixmap = ':default.png'
exeMenu = '' Atem.setIcon(QtGui.QIcon(self.pixmap))
Atem.setFlags(QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
Atem.setTextAlignment(QtCore.Qt.AlignHCenter)
Atem.setData(QtCore.Qt.UserRole, exeMenu)
DisplayName=self.numreg[key]['DisplayName'].encode('utf-8')
Atem.setToolTip(u""+DisplayName) # tip 显示
if len(DisplayName)>=6:
DisplayName=DisplayName.decode('utf8')[0:6].encode('utf8')+'…'
Atem.setText(u""+DisplayName) horizontalLayout = QtGui.QHBoxLayout()
horizontalLayout.addWidget(self.contentsWidget)
mainLayout = QtGui.QVBoxLayout()
mainLayout.addLayout(horizontalLayout)
self.setLayout(mainLayout)
self.setWindowTitle(u'Pyqt 显示已安装软件列表')
self.setWindowIcon(QtGui.QIcon(':favicon.ico'))
self.resize(600, 300)
self.contentsWidget.itemDoubleClicked.connect(self.DoubleClicked) #双击事件 # 当窗体大小改变后重新绘制窗体 重新排列Icon效果
def paintEvent(self,event):
mw = self.geometry()
width=mw.width() # 获取窗体宽度
self.contentsWidget.setViewMode(QtGui.QListView.IconMode)
self.contentsWidget.setIconSize(QtCore.QSize(96, 84)) #Icon 大小
self.contentsWidget.setMaximumWidth(width)
self.contentsWidget.setSpacing(12) # 间距大小
# win32 获取exe 资源
def bitmapFromHIcon(self, hIcon):
hdc = win32ui.CreateDCFromHandle(win32gui.GetDC(0))
hbmp = win32ui.CreateBitmap()
hbmp.CreateCompatibleBitmap(hdc, 32, 32)
hdc = hdc.CreateCompatibleDC()
hdc.SelectObject(hbmp)
hdc.DrawIcon((0, 0), hIcon)
hdc.DeleteDC()
return hbmp.GetHandle()
# 双击事件
def DoubleClicked(self):
item = self.contentsWidget.currentItem() # 获取当前item <PyQt4.QtGui.QListWidgetItem object at 0x01775E40>
location = item.data(QtCore.Qt.UserRole) # 获取item里面的data <PyQt4.QtCore.QVariant object at 0x018FD9B0>
Obj= location.toPyObject()
if Obj and os.path.exists(Obj): #文件or 目录存在
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: # 不存在的目录
QtGui.QMessageBox.warning(self, (u'提示'),(u'无法打开不存在的目录！'),QtGui.QMessageBox.Yes) # 注册表操作
class winregeditor:
dicList = {} def orderDict(self, numkey, DisplayName, DisplayIcon):
self.dicList[numkey] = {'DisplayName': DisplayName, 'DisplayIcon': DisplayIcon}
exeIcon = re.compile('.*exe')
match = exeIcon.match(DisplayIcon)
if match: #匹配到exe， 可直接打开
self.dicList[numkey]['exe'] = match.group()
else: # 没有exe，Icon可为ico 文件
self.dicList[numkey]['icon'] =DisplayIcon
return self.dicList def getreg(self):
key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall", 0, _winreg.KEY_ALL_ACCESS)
for i in xrange(0, _winreg.QueryInfoKey(key)[0]-1):
DisplayName = ''
DisplayIcon = ''
try:
key_name_list =_winreg.EnumKey(key, i)
each_key_path = "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall"+'\\'+key_name_list
each_key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, each_key_path, 0, _winreg.KEY_ALL_ACCESS)
DisplayName, REG_SZ = _winreg.QueryValueEx(each_key, "DisplayName")
DisplayName = DisplayName.encode('utf-8')
try:
DisplayIcon, REG_SZ = _winreg.QueryValueEx(each_key,"DisplayIcon")
DisplayIcon = DisplayIcon.encode('utf-8')
except WindowsError:
pass
#注册表中同时满足DisplayName 和 DisplayIcon
if DisplayName and DisplayIcon:
result = self.orderDict(str(i), DisplayName, DisplayIcon)
except WindowsError:
pass return result if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
dialog = ListDialog()
dialog.show()
sys.exit(app.exec_())
效果：
控制面板--软件删除：
QlistWidget软件列表效果：