Shell Registry Handling Functions
This section describes the Windows Shell registry handling functions. The programming elements explained in this documentation are exported by Shlwapi.dll and defined in Shlwapi.h and Shlwapi.lib.
In this section
| Topic | Description |
|---|---|
| AssocCreate |
Returns a pointer to an IQueryAssociations object. |
| AssocGetPerceivedType |
Retrieves a file's perceived type based on its extension. |
| AssocIsDangerous |
Determines whether a file type is considered a potential security risk. |
| AssocQueryKey |
Searches for and retrieves a key related to a file or protocol association from the registry. |
| AssocQueryString |
Searches for and retrieves a file or protocol association-related string from the registry. |
| AssocQueryStringByKey |
Searches for and retrieves a file association-related string from the registry starting from a specified key. |
| SHCopyKey |
Recursively copies the subkeys and values of the source subkey to the destination key. SHCopyKey does not copy the security attributes of the keys. |
| SHDeleteEmptyKey |
Deletes an empty key. |
| SHDeleteKey |
Deletes a subkey and all its descendants. This function removes the key and all the key's values from the registry. |
| SHDeleteValue |
Deletes a named value from the specified registry key. |
| SHEnumKeyEx |
Enumerates the subkeys of the specified open registry key. |
| SHEnumValue |
Enumerates the values of the specified open registry key. |
| SHGetAssocKeys |
Retrieves an array of class subkeys associated with an IQueryAssociations object. |
| SHGetValue |
Retrieves a registry value. |
| SHOpenRegStream2 |
Opens a registry value and supplies a stream that can be used to read from or write to the value. This function supersedes SHOpenRegStream. |
| SHQueryInfoKey |
Retrieves information about a specified registry key. |
| SHQueryValueEx |
Opens a registry key and queries it for a specific value. |
| SHRegCloseUSKey |
Closes a handle to a user-specific registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegCreateUSKey |
Creates or opens a registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegDeleteEmptyUSKey |
Deletes an empty registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegDeleteUSValue |
Deletes a registry subkey value in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegDuplicateHKey |
Duplicates a registry key's HKEY handle. |
| SHRegEnumUSKey |
Enumerates the subkeys of a registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegEnumUSValue |
Enumerates the values of the specified registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegGetBoolUSValue |
Retrieves a Boolean value from a registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegGetIntW |
Reads a numeric string value from the registry and converts it to an integer. |
| SHRegGetPath |
Retrieves a file path from the registry, expanding environment variables as needed. |
| SHRegGetUSValue |
Retrieves a value from a registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegOpenUSKey |
Opens a registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegQueryInfoUSKey |
Retrieves information about a specified registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegQueryUSValue |
Retrieves the type and data for a specified name associated with an open registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegSetPath |
Takes a file path, replaces folder names with environment strings, and places the resulting string in the registry. |
| SHRegSetUSValue |
Sets a registry subkey value in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHRegSetValue |
Sets a registry value. Use RegSetValue in its place. |
| SHRegWriteUSValue |
Writes a value to a registry subkey in a user-specific subtree (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE). |
| SHSetValue |
Sets the value of a registry key. |