reactos/rostests/tests/regqueryvalue/regqueryvalue.c

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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <wchar.h>
#include <windows.h>
int main( int argc, char **argv ) {
ULONG ResultSize;
PWCHAR WcharResult;
WCHAR ValueNameWC[100];
PCHAR CharResult;
HKEY RegKey;
int i;
if( argc < 2 ) {
printf( "Usage: regqueryvalue [key] [value]\n" );
printf( "Returns an HKEY_LOCAL_MACHINE value from the given key.\n" );
return 1;
}
if ( RegOpenKeyExA( HKEY_LOCAL_MACHINE, argv[1], 0, KEY_READ, &RegKey )
!= 0 ) {
printf( "Could not open key %s\n", argv[1] );
return 2;
}
for( i = 0; argv[2][i]; i++ ) ValueNameWC[i] = argv[2][i];
ValueNameWC[i] = 0;
if(RegQueryValueExW( RegKey, ValueNameWC, NULL, NULL, NULL, &ResultSize )
!= 0) {
printf( "The value %S does not exist.\n", ValueNameWC );
return 5;
}
WcharResult = malloc( (ResultSize + 1) * sizeof(WCHAR) );
if( !WcharResult ) {
printf( "Could not alloc %d wchars\n", (int)(ResultSize + 1) );
return 6;
}
RegQueryValueExW( RegKey, ValueNameWC, NULL, NULL, (LPBYTE)WcharResult,
&ResultSize );
printf( "wchar Value: %S\n", WcharResult );
fflush( stdout );
RegQueryValueExA( RegKey, argv[2], NULL, NULL, NULL, &ResultSize );
CharResult = malloc( ResultSize + 1 );
if( !CharResult ) {
printf( "Could not alloc %d chars\n", (int)(ResultSize + 1) );
return 7;
}
RegQueryValueExA( RegKey, argv[2], NULL, NULL, (PBYTE)CharResult, &ResultSize );
printf( " char Value: %s\n", CharResult );
fflush( stdout );
free( WcharResult );
free( CharResult );
return 0;
}