source-engine/tier2/vconfig.cpp
FluorescentCIAAfricanAmerican 3bf9df6b27 1
2020-04-22 12:56:21 -04:00

150 lines
4.5 KiB
C++

//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: Utilities for setting vproject settings
//
//===========================================================================//
#ifdef _WIN32
#if !defined( _X360 )
#include <windows.h>
#endif
#include <direct.h>
#include <io.h> // _chmod
#include <process.h>
#endif
#if defined( _X360 )
#include "xbox/xbox_win32stubs.h"
#endif
#include "vconfig.h"
#ifdef _WIN32
//-----------------------------------------------------------------------------
// Purpose: Returns the string value of a registry key
// Input : *pName - name of the subKey to read
// *pReturn - string buffer to receive read string
// size - size of specified buffer
//-----------------------------------------------------------------------------
bool GetVConfigRegistrySetting( const char *pName, char *pReturn, int size )
{
// Open the key
HKEY hregkey;
// Changed to HKEY_CURRENT_USER from HKEY_LOCAL_MACHINE
if ( RegOpenKeyEx( HKEY_CURRENT_USER, VPROJECT_REG_KEY, 0, KEY_QUERY_VALUE, &hregkey ) != ERROR_SUCCESS )
return false;
// Get the value
DWORD dwSize = size;
if ( RegQueryValueEx( hregkey, pName, NULL, NULL,(LPBYTE) pReturn, &dwSize ) != ERROR_SUCCESS )
return false;
// Close the key
RegCloseKey( hregkey );
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Sends a global system message to alert programs to a changed environment variable
//-----------------------------------------------------------------------------
void NotifyVConfigRegistrySettingChanged( void )
{
DWORD_PTR dwReturnValue = 0;
// Propagate changes so that environment variables takes immediate effect!
SendMessageTimeout( HWND_BROADCAST, WM_SETTINGCHANGE, 0, (LPARAM) "Environment", SMTO_ABORTIFHUNG, 5000, &dwReturnValue );
}
//-----------------------------------------------------------------------------
// Purpose: Set the registry entry to a string value, under the given subKey
// Input : *pName - name of the subKey to set
// *pValue - string value
//-----------------------------------------------------------------------------
void SetVConfigRegistrySetting( const char *pName, const char *pValue, bool bNotify )
{
HKEY hregkey;
// Changed to HKEY_CURRENT_USER from HKEY_LOCAL_MACHINE
// Open the key
if ( RegCreateKeyEx(
HKEY_CURRENT_USER, // base key
VPROJECT_REG_KEY, // subkey
0, // reserved
0, // lpClass
0, // options
(REGSAM)KEY_ALL_ACCESS, // access desired
NULL, // security attributes
&hregkey, // result
NULL // tells if it created the key or not (which we don't care)
) != ERROR_SUCCESS )
{
return;
}
// Set the value to the string passed in
int nType = strchr( pValue, '%' ) ? REG_EXPAND_SZ : REG_SZ;
RegSetValueEx( hregkey, pName, 0, nType, (const unsigned char *)pValue, (int) strlen(pValue) );
// Notify other programs
if ( bNotify )
{
NotifyVConfigRegistrySettingChanged();
}
// Close the key
RegCloseKey( hregkey );
}
//-----------------------------------------------------------------------------
// Purpose: Removes the obsolete user keyvalue
// Input : *pName - name of the subKey to set
// *pValue - string value
//-----------------------------------------------------------------------------
bool RemoveObsoleteVConfigRegistrySetting( const char *pValueName, char *pOldValue, int size )
{
// Open the key
HKEY hregkey;
if ( RegOpenKeyEx( HKEY_CURRENT_USER, "Environment", 0, (REGSAM)KEY_ALL_ACCESS, &hregkey ) != ERROR_SUCCESS )
return false;
// Return the old state if they've requested it
if ( pOldValue != NULL )
{
DWORD dwSize = size;
// Get the value
if ( RegQueryValueEx( hregkey, pValueName, NULL, NULL,(LPBYTE) pOldValue, &dwSize ) != ERROR_SUCCESS )
return false;
}
// Remove the value
if ( RegDeleteValue( hregkey, pValueName ) != ERROR_SUCCESS )
return false;
// Close the key
RegCloseKey( hregkey );
// Notify other programs
NotifyVConfigRegistrySettingChanged();
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Take a user-defined environment variable and swap it out for the internally used one
//-----------------------------------------------------------------------------
bool ConvertObsoleteVConfigRegistrySetting( const char *pValueName )
{
char szValue[MAX_PATH];
if ( RemoveObsoleteVConfigRegistrySetting( pValueName, szValue, sizeof( szValue ) ) )
{
// Set it up the correct way
SetVConfigRegistrySetting( pValueName, szValue );
return true;
}
return false;
}
#endif