我试图在注册表中搜索特定组(Local-> Windows -> Uninstall)中的键,因此我最终可以以编程方式卸载这些应用程序。我有问题得到的关键名称,所以我可以打开它。以下是我尝试过的:
void Uninstall::uninstallProgram(string appName)
{
HKEY currentKey;
TCHAR name[1024];
DWORD dwSize = 1024, dwIdx = 0;
FILETIME fTime;
long result;
result = RegOpenKeyEx(HKEY_LOCAL_MACHINE, POLICY_KEY, 0, KEY_QUERY_VALUE | KEY_SET_VALUE, ¤tKey);
if (result != ERROR_SUCCESS)
{
cout << "Error opening Installation Registry, verify that this location exists under: " << POLICY_KEY << endl;
cin.get();
}
else
{
/*
* The installation path has been verified, now need to start looking for the correct program to uninstall
*/
for(int index = 0; result == ERROR_SUCCESS; index++)
{
if (RegEnumKeyEx(currentKey, 0, name, &dwSize, NULL, NULL, NULL, &fTime))
{
cout << string() << name << endl;
// if (name == appName)
// {
// system(execute the uninstall string)
// }
}
}
}
如何检索当前密钥名称以将其与我试图卸载的应用程序的名称进行比较?谢谢。
下面是一个工作编译代码递归地搜索通过注册表的值名,我知道很多人都在寻找它,我认为没有工作的代码可以做到这一点。
使用MinGW编译的// Say Shaloom to Ammar Hourani who did code troubleshooting and compiled this
// QueryKey - Enumerates the subkeys of key and its associated values.
// hKey - Key whose subkeys and values are to be enumerated.
#include <windows.h>
#include <stdio.h>
#include <tchar.h>
#include <iostream.h>
#include <wchar.h>
#include <string.h>
#define MAX_KEY_LENGTH 255
#define MAX_VALUE_NAME 16383
void QueryKey(char * originalpath , char * searchvalue)
{
HKEY hKey;
if( RegOpenKeyEx( HKEY_CURRENT_USER,TEXT(originalpath),0,KEY_READ,&hKey) == ERROR_SUCCESS)
{
TCHAR achKey[MAX_KEY_LENGTH]; // buffer for subkey name
DWORD cbName; // size of name string
TCHAR achClass[MAX_PATH] = TEXT(""); // buffer for class name
DWORD cchClassName = MAX_PATH; // size of class string
DWORD cSubKeys=0; // number of subkeys
DWORD cbMaxSubKey; // longest subkey size
DWORD cchMaxClass; // longest class string
DWORD cValues; // number of values for key
DWORD cchMaxValue; // longest value name
DWORD cbMaxValueData; // longest value data
DWORD cbSecurityDescriptor; // size of security descriptor
FILETIME ftLastWriteTime; // last write time
DWORD i, retCode;
CHAR achValue[MAX_VALUE_NAME];
DWORD cchValue = MAX_VALUE_NAME;
char * dndr = new char[MAX_VALUE_NAME]();
// Get the class name and the value count.
retCode = RegQueryInfoKey(
hKey, // key handle
achClass, // buffer for class name
&cchClassName, // size of class string
NULL, // reserved
&cSubKeys, // number of subkeys
&cbMaxSubKey, // longest subkey size
&cchMaxClass, // longest class string
&cValues, // number of values for this key
&cchMaxValue, // longest value name
&cbMaxValueData, // longest value data
&cbSecurityDescriptor, // security descriptor
&ftLastWriteTime); // last write time
// Enumerate the subkeys, until RegEnumKeyEx fails.
if (cSubKeys)
{
for (i=0; i<cSubKeys; i++)
{
cbName = MAX_KEY_LENGTH;
retCode = RegEnumKeyEx(hKey, i,achKey,&cbName,NULL,NULL,NULL,&ftLastWriteTime);
if (retCode == ERROR_SUCCESS)
{
strcpy(dndr,originalpath);
strcat(dndr,"\");
strcat(dndr,achKey);
QueryKey(dndr,searchvalue);
}
}
}
// Enumerate the key values.
if (cValues)
{
for (i=0, retCode=ERROR_SUCCESS; i<cValues; i++)
{
cchValue = MAX_VALUE_NAME;
//achValue[0] = ' ';
memset(achValue, 0, sizeof(achValue));
retCode = RegEnumValue(hKey, i,
achValue,
&cchValue,
NULL,
NULL,
NULL,
NULL);
if (retCode == ERROR_SUCCESS )
{
if (!strncmp(achValue,searchvalue,strlen(searchvalue))) cout << "n One Hit at: " << originalpath << endl;
}
}
}
}
RegCloseKey(hKey);
}
int __cdecl _tmain(void)
{
QueryKey("Software\Microsoft\Office","MTTA");
cin.get();
return 1;
}
似乎您只是忘记请求KEY_ENUMERATE_SUB_KEYS访问权限。也有可能我不明白你到底想做什么,但AFAIK卸载文件夹有不同的位置。
HKEY currentKey;
TCHAR name[1024];
DWORD dwSize = 1024, dwIdx = 0;
long result;
result = RegOpenKeyEx(HKEY_CURRENT_USER, _T("Software\Microsoft\Windows\CurrentVersion\Uninstall" ), 0, KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE | KEY_SET_VALUE, ¤tKey);
if (result != ERROR_SUCCESS)
{
// fail
}
else
{
DWORD index = 0;
while ( ERROR_SUCCESS == RegEnumKeyEx(currentKey, index, name, &dwSize, NULL, NULL, NULL, NULL) ) {
// name buffer is already contains key name here
// ...
dwSize = 1024; // restore dwSize after is is set to key's length by RegEnumKeyEx
++index; // increment subkey index
}
}
用于注册表访问的原始api非常丑陋—使用众多可用的包装器类中的一个是标准做法,这可以使整个过程不那么痛苦。codeproject上有几十个这样的项目
您必须使用当前索引来获取名称,然后检查ERROR_NO_MORE_ITEMS
:
bool quit = false;
for(int index = 0; !quit; index++)
{
LSTATUS Return = RegEnumKeyEx(currentKey, index, name, &dwSize, NULL, NULL, NULL, &fTime);
if(Return == ERROR_NO_MORE_ITEMS)
{
quit = true;
}
else if(Return == ERROR_SUCCESS)
{
cout << string() << name << endl;
}
else
{
quit = true;
}
}
您需要在RegEnumKeyEx调用中包含索引变量。您总是为dwIndex参数传递0。当返回ERROR_NO_MORE_ITEMS时停止枚举。