Strings::AscW Method (Char)

 

Returns an Integer value representing the character code corresponding to a character.

Namespace:   Microsoft.VisualBasic
Assembly:  Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

public:
static int AscW(
	wchar_t String
)

Parameters

String
Type: System::Char

Required. Any valid Char or String expression. If String is a String expression, only the first character of the string is used for input. If String is Nothing or contains no characters, an ArgumentException error occurs.

Return Value

Type: System::Int32

Returns an Integer value representing the character code corresponding to a character.

Asc returns the code point, or character code, for the input character. This can be 0 through 255 for single-byte character set (SBCS) values and -32768 through 32767 for double-byte character set (DBCS) values.

AscW returns the Unicode code point for the input character. This can be 0 through 65535. The returned value is independent of the culture and code page settings for the current thread.

System_CAPS_noteNote

The AscB function of earlier versions of Visual Basic returns a code for a byte, rather than a character. It is used primarily for converting strings in double-byte character set (DBCS) applications. All Visual Basic 2005 strings are in Unicode, and AscB is no longer supported.

The following example uses the Asc function to return Integer character codes corresponding to the first letter in each string.

Dim codeInt As Integer
' The following line of code sets codeInt to 65.
codeInt = Asc("A")
' The following line of code sets codeInt to 97.
codeInt = Asc("a")
' The following line of code sets codeInt to 65.
codeInt = Asc("Apple")

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone
Available since 8.1
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