JoeBurwell
asked on
Registry access => SERIALCOMM
I want my code to read the values in the registry key, "HKEY_LOCAL_MACHINE\HARDWA
while(enum_reg_status != ERROR_NO_MORE_ITEMS)
{
enum_reg_status = RegEnumValue(nt_com_key, x, (char*)reg_name, &name_buffer_size, NULL, ®_info_type, individual_reg_entry, ®_buffer_size);
if(enum_reg_status != ERROR_MORE_DATA)
{
break;
}
++x;
}
RegCloseKey(nt_com_key);
//************************
In this section of the registry I see 4 values (using Regedit): Default (no value set), "COM1", "COM2", and "COM3". When I step through the above code, the RegEnumValue function returns with no error (the first time), but it doesn't update the variable, individual_reg_entry, with the data ("COM1", ...). I do see (in the subsequent loops) "COM2" and "COM3", and I can store those values.
????
Why don't I see "COM1", but I see the other values? (Note: x is the index, and I set it to 0 before entering the loop.)
Thanks!
while(enum_reg_status != ERROR_NO_MORE_ITEMS)
{
enum_reg_status = RegEnumValue(nt_com_key, x, (char*)reg_name, &name_buffer_size, NULL, ®_info_type, individual_reg_entry, ®_buffer_size);
if(enum_reg_status != ERROR_MORE_DATA)
{
break;
}
++x;
}
RegCloseKey(nt_com_key);
//************************
In this section of the registry I see 4 values (using Regedit): Default (no value set), "COM1", "COM2", and "COM3". When I step through the above code, the RegEnumValue function returns with no error (the first time), but it doesn't update the variable, individual_reg_entry, with the data ("COM1", ...). I do see (in the subsequent loops) "COM2" and "COM3", and I can store those values.
????
Why don't I see "COM1", but I see the other values? (Note: x is the index, and I set it to 0 before entering the loop.)
Thanks!
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ASKER
I modified my code as follows:
name_buffer_size = 100;
reg_buffer_size = 100;
while(enum_reg_status == ERROR_SUCCESS)
{
enum_reg_status = RegEnumValue (nt_com_key, x,
(char*)single_reg_name,
&name_buffer_size, NULL
®_info_type, individual_reg_entry,
®_buffer_size);
if(enum_reg_status != ERROR_SUCCESS)
{
break;
}
// ...
++x;
reg_buffer_size = 100;
name_buffer_size = 100;
}// end while(enum_reg_status...)
That solved the problem! Thanks!
name_buffer_size = 100;
reg_buffer_size = 100;
while(enum_reg_status == ERROR_SUCCESS)
{
enum_reg_status = RegEnumValue (nt_com_key, x,
(char*)single_reg_name,
&name_buffer_size, NULL
®_info_type, individual_reg_entry,
®_buffer_size);
if(enum_reg_status != ERROR_SUCCESS)
{
break;
}
// ...
++x;
reg_buffer_size = 100;
name_buffer_size = 100;
}// end while(enum_reg_status...)
That solved the problem! Thanks!
fstab,
I'd love to say it's because I'm so smart....but the truth is that I've been burned by this so many times that it's the FIRST thing I check with the registry functions don't work right...
I'd love to say it's because I'm so smart....but the truth is that I've been burned by this so many times that it's the FIRST thing I check with the registry functions don't work right...
Anyways I tried resetting name_buffer_size everytime and it worked fine ..