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Fixed joystick name detection

Browse source 
--HG--
branch : SDL-1.2
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/branches/SDL-1.2%402493
This commit is contained in:
Sam Lantinga 2007-07-12 05:19:55 +00:00
parent c746a535e3
commit 2bad9cfdd2
1 changed files with 46 additions and 55 deletions
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101
src/joystick/win32/SDL_mmjoystick.c
View file

@ -76,67 +76,58 @@ static char *GetJoystickName(int index, const char *szRegKey)
index (1-16) listed in the registry
*/
char *name = NULL;
HKEY hTopKey;
HKEY hKey;
DWORD regsize;
LONG regresult;
unsigned char regkey[256];
unsigned char regvalue[256];
unsigned char regname[256];
char regkey[256];
char regvalue[256];
char regname[256];
SDL_snprintf((char *) regkey, SDL_arraysize(regkey), "%s\\%s\\%s",
REGSTR_PATH_JOYCONFIG,
szRegKey,
REGSTR_KEY_JOYCURR);
regresult = RegOpenKeyExA(HKEY_LOCAL_MACHINE,
(LPTSTR) &regkey, 0, KEY_READ, &hKey);
if (regresult == ERROR_SUCCESS)
{
/*
find the registry key name for the
joystick's properties
*/
regsize = sizeof(regname);
SDL_snprintf((char *) regvalue, SDL_arraysize(regvalue),
"Joystick%d%s", index+1,
REGSTR_VAL_JOYOEMNAME);
regresult = RegQueryValueExA(hKey,
(char *) regvalue, 0, 0, (LPBYTE) &regname,
(LPDWORD) &regsize);
RegCloseKey(hKey);
if (regresult == ERROR_SUCCESS)
{
/* open that registry key */
SDL_snprintf((char *) regkey, SDL_arraysize(regkey), "%s\\%s",
REGSTR_PATH_JOYOEM, regname);
regresult = RegOpenKeyExA(HKEY_LOCAL_MACHINE,
(char *) regkey, 0, KEY_READ, &hKey);
if (regresult == ERROR_SUCCESS)
{
/* find the size for the OEM name text */
regsize = sizeof(regvalue);
regresult =
RegQueryValueExA(hKey,
REGSTR_VAL_JOYOEMNAME,
0, 0, NULL,
(LPDWORD) &regsize);
if (regresult == ERROR_SUCCESS)
{
/*
allocate enough memory
for the OEM name text ...
*/
name = (char *) SDL_malloc(regsize);
/* ... and read it from the registry */
regresult =
RegQueryValueExA(hKey,
REGSTR_VAL_JOYOEMNAME, 0, 0,
(LPBYTE) name,
(LPDWORD) &regsize);
RegCloseKey(hKey);
}
}
SDL_snprintf(regkey, SDL_arraysize(regkey), "%s\\%s\\%s",
REGSTR_PATH_JOYCONFIG, szRegKey, REGSTR_KEY_JOYCURR);
hTopKey = HKEY_LOCAL_MACHINE;
regresult = RegOpenKeyExA(hTopKey, regkey, 0, KEY_READ, &hKey);
if (regresult != ERROR_SUCCESS) {
hTopKey = HKEY_CURRENT_USER;
regresult = RegOpenKeyExA(hTopKey, regkey, 0, KEY_READ, &hKey);
}
if (regresult != ERROR_SUCCESS) {
return NULL;
}
/* find the registry key name for the joystick's properties */
regsize = sizeof(regname);
SDL_snprintf(regvalue, SDL_arraysize(regvalue), "Joystick%d%s", index+1, REGSTR_VAL_JOYOEMNAME);
regresult = RegQueryValueExA(hKey, regvalue, 0, 0, (LPBYTE)regname, &regsize);
RegCloseKey(hKey);
if (regresult != ERROR_SUCCESS) {
return NULL;
}
/* open that registry key */
SDL_snprintf(regkey, SDL_arraysize(regkey), "%s\\%s", REGSTR_PATH_JOYOEM, regname);
regresult = RegOpenKeyExA(hTopKey, regkey, 0, KEY_READ, &hKey);
if (regresult != ERROR_SUCCESS) {
return NULL;
}
/* find the size for the OEM name text */
regsize = sizeof(regvalue);
regresult = RegQueryValueExA(hKey, REGSTR_VAL_JOYOEMNAME, 0, 0, NULL, &regsize);
if (regresult == ERROR_SUCCESS) {
/* allocate enough memory for the OEM name text ... */
name = (char *) SDL_malloc(regsize);
if ( name ) {
/* ... and read it from the registry */
regresult = RegQueryValueExA(hKey,
REGSTR_VAL_JOYOEMNAME, 0, 0,
(LPBYTE) name, &regsize);
}
}
RegCloseKey(hKey);
return(name);
}