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lurc
Grandmaster Cheater Supreme
 Reputation: 2
Joined: 13 Nov 2006
Posts: 1900
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 Posted: Thu Feb 07, 2008 7:23 pm Post subject: [C++ Help] SetDlgItemText + RegQueryValueEx |
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Okay so i've been trying to Do Registry/INI Reading for a while.
I can write fine, but when it comes to reading using RegQueryValueEx, i cant seem to convert the string/value correctly so that SetDlgItemText can set its value/string to the edit box.
Btw it either crashes, doesnt fill the box in, fills it with the hKey (Software\\..), or just doesnt do anything. (all depending on how i arrange the strings/points/address's)
Heres my snippet, The Key is open.
(dwType, dwSize, lpwString are all defined above)
| Code: | // REG_DWORD -> Converting to wchar -> Setting to Edit Box
dwType = REG_DWORD;
dwSize = sizeof(DWORD);
RegQueryValueEx( hKey, L"Edit Box 1", 0, &dwType, (LPBYTE)&dwValue, &dwSize );
_itot( dwValue, lpwString, 10 );
SetDlgItemText( hWnd, ID_EDIT, lpwString );
OR
// REG_SZ -> Setting straight to Edit box.
dwType = REG_SZ;
dwSize = sizeof(lpwString)+2; // For Null escape?
RegQueryValueEx( hKey, L"Edit Box 1", 0, &dwType, (LPBYTE)&lpwString, &dwSize );
SetDlgItemText( hWnd, ID_EDIT, lpwString );
RegCloseKey( hKey ); |
Wierdly enough, this one works completely fine:
| Code: | RegQueryValueEx( hKey, L"Checkbox", 0, &dwType, (PBYTE)&dwValue, &dwSize );
if ( dwValue == 1 )
{
SendDlgItemMessage( hWnd, ID_CHKBOX, BM_SETCHECK, BST_CHECKED, 0 );
}
else
{
SendDlgItemMessage( hWnd, ID_CHKBOX, BM_SETCHECK, BST_UNCHECKED, 0 );
} |
So i know for sure that it has to do with getting/converting the string, this shit has been pissing me off for a while now, so after hours and hours of googling, examples, etc. ive resorted to the forum.
Thanx to anyone who helps me.
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hcavolsdsadgadsg
I'm a spammer
![]() Reputation: 26
Joined: 11 Jun 2007
Posts: 5801
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| Posted: Thu Feb 07, 2008 8:58 pm Post subject: |
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| Code: | HKEY hKey = NULL;
LPTSTR str = "";
TCHAR strValue[255];
DWORD dwData = 0,
dwSize,
dwType = REG_SZ;
if(RegOpenKeyEx(HKEY_CURRENT_USER, TEXT("Software\\diques\\coques"),
0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS){
RegQueryValueEx(hKey, TEXT("some key"), NULL, &dwType, (LPBYTE)strValue, &dwSize);
RegCloseKey(hKey);
}
str = strValue;
SetDlgItemText(hwnd, IDC_EDIT1, str); |
e: oops.
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atom0s
Moderator
 Reputation: 205
Joined: 25 Jan 2006
Posts: 8587
Location: 127.0.0.1
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| Posted: Fri Feb 08, 2008 4:30 pm Post subject: |
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Another quick example reading into a TCHAR array for the Program Files path in: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ProgramFilesDir
| Code: | #include <windows.h>
#include <iostream>
#include <tchar.h>
int main()
{
HKEY hKey = NULL;
TCHAR tszFolderPath[MAX_PATH] = {0};
DWORD dwPathSize = _ARRAYSIZE( tszFolderPath );
//
// Check If HKEY_LOCAL_MACHINE\Microsoft\CurrentVersion exists.
//
if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Microsoft\\Windows\\CurrentVersion"), 0, KEY_READ, &hKey ) != ERROR_SUCCESS )
{
std::cout << "Unable to locate: SOFTWARE\\Microsoft\\Windows\\CurrentVersion" << std::endl;
std::cin.sync();
std::cin.ignore();
return 0;
}
RegCloseKey( hKey );
//
// Obtain ProgramFilesDir Key Value
//
if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Microsoft\\Windows\\CurrentVersion"), 0, KEY_READ, &hKey ) != ERROR_SUCCESS )
{
// Error
std::cout << "Unable to locate: SOFTWARE\\Microsoft\\Windows\\CurrentVersion" << std::endl;
std::cin.sync();
std::cin.ignore();
return 0;
}
else
{
if( RegQueryValueEx( hKey, _T("ProgramFilesDir"), NULL, NULL, (LPBYTE)tszFolderPath, &dwPathSize ) != ERROR_SUCCESS )
{
// Failed
std::cout << "Unable to locate: SOFTWARE\\Microsoft\\Windows\\CurrentVersion -- Key: ProgramFilesDir" << std::endl;
std::cout << tszFolderPath;
std::cin.sync();
std::cin.ignore();
return 0;
}
RegCloseKey( hKey );
}
std::cout << "Program Files Path: " << tszFolderPath;
std::cin.sync();
std::cin.ignore();
return ERROR_SUCCESS;
} |
You can alter it and then have SetDlgItemText() use tszFolderPath to set the textbox value.
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lurc
Grandmaster Cheater Supreme
Reputation: 2
Joined: 13 Nov 2006
Posts: 1900
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| Posted: Sat Feb 09, 2008 11:26 am Post subject: |
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Thanx guys, the TCHAR example helped alot Wiccaan!
i was thinking of using TCHAR's to, only thing that didnt work when i tried was that i wasnt using _ARRAYSIZE so that just filled in the blanks for me 
everythings workin now, solved.
thanx, -Lurc
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atom0s
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Posts: 8587
Location: 127.0.0.1
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lurc
Grandmaster Cheater Supreme
Reputation: 2
Joined: 13 Nov 2006
Posts: 1900
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| Posted: Sat Feb 09, 2008 8:51 pm Post subject: |
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| Wiccaan wrote: | | lurc wrote: | Thanx guys, the TCHAR example helped alot Wiccaan!
i was thinking of using TCHAR's to, only thing that didnt work when i tried was that i wasnt using _ARRAYSIZE so that just filled in the blanks for me
everythings workin now, solved.
thanx, -Lurc |
Not a problem, I also noticed I forgot to close the hKey in one or two of the caes, so be sure if you error out of something that you close any open key. |
Lol dont worry, i already did that 
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