Editing getRegString - FilterMeisterWiki

When saving, enter the following:

 _     _  ######  ZZZ  ZZZ  TT  TT   _______ 
( )   ( ) # ## #   ZZ   ZZ  TT  TT  (  ____ \
`\`\_/'/'   ##     ZZ   ZZ  TT  TT  | (    \/
  `\ /'     ##     ZZZZZZZ   TTTT   | |      
   | |      ##     ZZ   ZZ    TT    | |      
   (_)      ##     ZZ   ZZ    TT    | |      
           ####   ZZZ  ZZZ    TT    | (____/\
                                    (_______/

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= getRegString =
== Syntax ==
:{{int getRegString(int szString, int iMaxLen, int szValueName[, varargs]...)}}
== Arguments ==
:'''szString'''
::is the address of the string to be stored or retrieved
:'''iMaxLen'''
::is the size of the szString buffer in bytes, which specifies the longest character string that can be stored in szString, including the terminating null character
:'''szValueName'''
::is the name of the string to be set or retrieved, and may contain printf-style formatting codes as well as FM !-codes.
:'''varargs'''
::is a list of optional arguments used to perform printf-style formatting on the szValueName string.
== Return ==
:Returns ERROR_SUCCESS if the operation was successful, otherwise it returns one of the following integer error codes:
||ERROR_SUCCESS||(==0) no error||
||ERROR_FILE_NOT_FOUND||key or value name not found||
||ERROR_MORE_DATA||buffer wasn't big enough (e.g., getRegString, getRegData)||
||ERROR_NO_MORE_ITEMS||index >= # of values or subkeys (enumRegValue, enumRegSubKey)||
||ERROR_INVALID_FUNCTION||bad top-level key, etc||
||ERROR_INVALID_DATA||wrong data type or size (or size > 2048)||
||ERROR_BADDB||registry database is corrupt||
||ERROR_BADKEY||registry key is invalid||
||ERROR_CANTOPEN||registry key could not be opened||
||ERROR_CANTREAD||registry key could not be read||
||ERROR_CANTWRITE||registry key could not be written||
||ERROR_REGISTRY_CORRUPT||registry is corrupt||
||ERROR_REGISTRY_IO_FAILED||input/output to registry failed||
||ERROR_KEY_DELETED||Illegal operation attempted on a Registry key which has been marked for deletion.||
||ERROR_KEY_HAS_CHILDREN||cannot delete a key with subkeys (Windows NT)||

== Description ==
:Fetches a C-style character string from the Windows Registry.
:Currently, only two types of registry roots are possible, identified by the constants ((HKEY_LOCAL_MACHINE)) and ((HKEY_CURRENT_USER)).
== Example ==
<code>
// Saves a title for your filter dialog box, and retrieves it on next invocation
putRegString("Filter #2", "Dialog title");  //save title for next time
        . . .

getRegString(str0, 256, "Dialog title");    //retrieve saved title
if (strcmp(str0, "")==0) {
    //title is null or missing...
    strcpy(str0, "Default title");  //set a default title
}
setDialogText(str0);   //set title for our filter dialog
</code>
== Also see ==
:((getRegRoot)), ((setRegPath)), ((putRegString))
== Comments ==
:Note that this function does not work for REG_EXPAND_SZ strings, which are a different data type to standard REG_SZ strings.

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