Using (Namespaces)

Brings namespace symbols into the current scope

Syntax
	Using identifier [, identifier [, ...] ]

Parameters
	identifier: The name of the KeyPgNamespaceNamespace that you want to use.

Description
	The Using command allows all symbols from a given namespace to be 
	accessed without the namespace's name prefix. Unlike C++ but like C#, 
	the KeyPgNamespaceNamespace keyword is not needed after Using, because individual 
	symbols cannot be inherited from a namespace.

	Using is allowed in namespaces and procedures only (not in type or union 
	or enum declarations).

	Inheriting a whole namespace can save typing, but sometimes some meaning 
	of the code can be lost, and conflicts with other symbols could be 
	created.

Example
	Namespace Sample
	   Type T
	      x As Integer
	   End Type
	End Namespace

	'' Just using the name T would not find the symbol,
	'' because it is inside a namespace.
	Dim SomeVariable As Sample.T

	'' Now the whole namespace has been inherited into
	'' the global namespace.
	Using Sample

	'' This statement is valid now, since T exists
	'' without the "Sample." prefix.
	Dim OtherVariable As T 

Version
	* Before fbc 1.09.0, if there is duplicated symbol in the global 
	  namespace (unnamed namespace), access to local symbol is captured by 
	  duplicated global symbol (in that case, full prefixing is required to 
	  access local symbol).

Differences from QB
	* QB had the Using keyword, but for other purposes. Namespaces did not 
	  exist in QB.

See also
	* KeyPgPrintusingPrint Using
	* KeyPgPrintusing? Using
	* KeyPgPalettePalette Using
	* KeyPgNamespaceNamespace

