Completely Remove a variable content from Ram!

Some functions may use "StrPut()" function to put plain text strings in Ram in order to be used with "DllCall()" function!

The problem is, you may not want the plain text strings to remain in Ram after the functions return!

If you use something like, Data := "", or, VarSetCapacity(Data, 0), or even, VarSetCapacity(Data, 0, 0), the "Data" variable is released but its content that contains plain text strings are still stored in Ram!

When a variable is released, it means that its content remains in Ram, but it can be overwritten by other contents!

So, before releasing a variable, make sure to overwrite all its content with "0" bytes, then release it! Doing so, all the plain text strings in Ram are overwritten with 0 bytes as well!

Example below:

VarSetCapacity(Data, , 0)        ;overwrite all the content from "Data" variable with 0 bytes!

Note that, the "RequestedCapacity" parameter is omitted in "VarSetCapacity()" function, so the current capacity of "Data" variable will be used! (Assuring that all its current capacity is overwritten with 0 bytes!)

Then you can use, Data := "", or, VarSetCapacity(Data, 0), to release "Data" variable in order to allow all its 0 bytes content to be overwritten with other contents! 




Keywords:
Completely Remove a variable data from Ram!
Completely Remove a variable value from Ram!
Completely Remove a variable content from Ram!