I want to know how can I get the default value of a registry key using C++.
I already tried sending NULL or an empty string in the key param in RegQueryValueEx() function.
Tried to check another key and I get it right. I just can't get the default.
The function returns "" instead of the value.
What do you mean by "key param?" You should be passing NULL or "" as the lpValueName parameter. If that's not working for you then it's a bug in your code. Post your code and perhaps we can provide further assistance.
Related
Currently am trying to make code which can pick out either specific or aggregate values for certain actions. I am using a nested dictionary for this, but am having issues calling specific values of nested dictionary. The code runs, but always brings the same value, not matter which key I originally tried to call
I have tried to have it print a variable set to the value of the key in the dictionary. I have also tried to use v.get() to retrieve the value from the dictionary.
properties={'lake':{'repairs':9001,'upgrades':3,'police investigations':69}
,'meadow':{'repairs':3,'upgrades':8}
,'beach':{'repairs':4,'upgrades':2}
,'country':{'repairs':5,'upgrades':54}}
choice=raw_input('Do you want to learn about a specific property or total actions? (type specific or total) ')
choice=choice.lower()
if choice[0]=='s':
for k,v in properties.items():
print(properties.keys())
properti=raw_input('Which property would you like to look at? (enter nothing to exit) ')
print properties[properti]
action=raw_input('What action is it you want to learn about? ')
result=v[action]
print('The '+properti+' property has had '+str(result)+' '+action+' completed.')
I expect when I call for a specific property, choose lake, then choose repairs, that I'd get the 9001. Or even going for meadow, I'd get 3 repairs. Currently I am always getting the country property's amounts for both repairs and upgrades.
Change the following
result=v[action]
to
result=properties[properti][action]
I have a case in BizTalk where I want to map an "Attribute Node" which type is Date that can't be null or empty and to avoid problems I need to suppress in the destination transformation map when the source is null.
I followed this link to try the same thing that we do with Nodes but doesn't answer my problem.
https://social.technet.microsoft.com/Forums/security/en-US/4ab184e0-c978-429c-a80d-e869732de8a2/how-to-suppress-empty-nodes-in-biztalk-map?forum=biztalkgeneral
Anyone have an idea?
Thank you,
Roberto
Edited
The link didn't mentioned that the Logical String returns True or Nill depending on your source.
I've obliged to check if is empty and as well null
From the source, connect to a Length Functoid, then Greater Than 1 Functoid.
Connect the Greater Than Functoid to the target.
However you end up composing it, connecting a Functoid that returns a boolean is treated as a create yes/no regardless of any value also mapped.
I have a workflow in which I've set up an expression transformation to select $$Param for a particular field, and then within the target properties I've set a delete value. I've tried this by substituting $$Param for a hardcoded value and it works fine, however, for some reason when I put in $$Param, it doesn't actually do the delete. Is there a reason? Am I doing something wrong?
Just for clarification, the workflow executes successfully - no error is thrown but it's not doing what it's supposed to.
Thanks in advance,
$$Param needs to be passed thru a parameter file and you have the option to set an initial value when you declare the parameter in the mapping under Mappings > Parameter and Variables.
Have you looked at the session log to see what's the override value of $$Param is being used? If it's a SQL delete, try to turn see in the session log the query being executed in the database.
I'm doing a workflow for a SharePoint site that is taking data from another SharePoint sites list and then putting it into the new site, I have this bit working fine but I have a issue where it seems to be updating both lists due to one of the logic operations thinking that a value is not null. My question is would it be possible to use an XSLT to set a sort of Boolean that will return True when a string == Null? and if so could you give me some pointers on how to get started with this?
not ($yourString)
will return True if the string is empty, False otherwise. Not sure what "null" means in this context
I am trying to get the IClass values from registry key using RegQueryVaueEx and convert them to GUID for my application. I could do that for REG_SZ size, however, I am trying to figure out a way to do the same for IClass values with REG_MULTI_SZ that have more than one IClass. It doesn't seem to be straightforward as characters between the values are not consistent. Sometimes, each value is delimited by a COMMA, sometimes the IClass value is equated to %b. Is there a simple way to achieve what I am looking for? Please suggest.
Looks like the best way to achieve this is to open the registry key of the driver with RegOpenKeyEx and use RegEnumValue to get the IClass values (by passing IClass value name as parameter) in a loop (do-while) until RegEnumValue fails.
Thanks all for the comments and suggestions.
Searching my WinXP/64 registry, I find no "IClass" value.
MSDN says that MULTI_SZ is a list of nul-terminated strings with a size value; and that page has example code that "walks a REG_MULTI_SZ string."