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Extend convenience API to query windows registry

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This commit is contained in:
Robin Gareus 2020-10-30 13:15:06 +01:00
parent 1219271321
commit f509a7e003
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
2 changed files with 9 additions and 4 deletions
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7
libs/pbd/pbd/windows_special_dirs.h
View File

@ -22,6 +22,7 @@
#ifndef __libpbd_windows_special_dirs_h__
#define __libpbd_windows_special_dirs_h__
#include <windows.h>
#include <string>
#include "pbd/libpbd_visibility.h"
@ -38,7 +39,11 @@ namespace PBD {
*/
LIBPBD_API std::string get_win_special_folder_path (int csidl);
LIBPBD_API bool windows_query_registry (const char *regkey, const char *regval, std::string &rv);
/**
* Convenience function to query registry keys. Test for both native,
* as well as WindowsOnWindows 64/32 key and returns the value as UTF-8 string.
*/
LIBPBD_API bool windows_query_registry (const char* regkey, const char* regval, std::string &rv, HKEY root = HKEY_LOCAL_MACHINE);
}

6
libs/pbd/windows_special_dirs.cc
View File

@ -49,13 +49,13 @@ PBD::get_win_special_folder_path (int csidl)
}
bool
PBD::windows_query_registry (const char *regkey, const char *regval, std::string &rv)
PBD::windows_query_registry (const char *regkey, const char *regval, std::string &rv, HKEY root)
{
HKEY key;
DWORD size = PATH_MAX;
char tmp[PATH_MAX+1];
if ( (ERROR_SUCCESS == RegOpenKeyExA (HKEY_LOCAL_MACHINE, regkey, 0, KEY_READ, &key))
if ( (ERROR_SUCCESS == RegOpenKeyExA (root, regkey, 0, KEY_READ, &key))
&& (ERROR_SUCCESS == RegQueryValueExA (key, regval, 0, NULL, reinterpret_cast<LPBYTE>(tmp), &size))
)
{
@ -63,7 +63,7 @@ PBD::windows_query_registry (const char *regkey, const char *regval, std::string
return true;
}
if ( (ERROR_SUCCESS == RegOpenKeyExA (HKEY_LOCAL_MACHINE, regkey, 0, KEY_READ | KEY_WOW64_32KEY, &key))
if ( (ERROR_SUCCESS == RegOpenKeyExA (root, regkey, 0, KEY_READ | KEY_WOW64_32KEY, &key))
&& (ERROR_SUCCESS == RegQueryValueExA (key, regval, 0, NULL, reinterpret_cast<LPBYTE>(tmp), &size))
)
{