User32ToAscii Method

[DllImportAttribute("User32.dll", SetLastError = true)]
public static int ToAscii(
	uint vkey,
	uint scanCode,
	byte[] keyState,
	ref uint refChar,
	uint flags
)

<DllImportAttribute("User32.dll", SetLastError := true>]
Public Shared Function ToAscii ( 
	vkey As UInteger,
	scanCode As UInteger,
	keyState As Byte(),
	ByRef refChar As UInteger,
	flags As UInteger
) As Integer

Dim vkey As UInteger
Dim scanCode As UInteger
Dim keyState As Byte()
Dim refChar As UInteger
Dim flags As UInteger

Dim returnValue As Integer

returnValue = User32.ToAscii(vkey, 
	scanCode, keyState, refChar, flags)

public:
[DllImportAttribute(L"User32.dll", SetLastError = true)]
static int ToAscii(
	unsigned int vkey, 
	unsigned int scanCode, 
	array<unsigned char>^ keyState, 
	unsigned int% refChar, 
	unsigned int flags
)

[<DllImportAttribute("User32.dll", SetLastError = true)>]
static member ToAscii : 
        vkey : uint32 * 
        scanCode : uint32 * 
        keyState : byte[] * 
        refChar : uint32 byref * 
        flags : uint32 -> int 

No code example is currently available or this language may not be supported.

Parameters

vkey  UInt32

The virtual-key code to be translated

scanCode  UInt32

The hardware scan code of the key to be translated.

The high-order bit of this value is set if the key is up (not pressed).

keyState  Byte

A pointer to a 256-byte array that contains the current keyboard state. Each element (byte) in the array contains the state of one key.

If the high-order bit of a byte is set, the key is down (pressed).

The low bit, if set, indicates that the key is toggled on. In this function, only the toggle bit of the CAPS LOCK key is relevant.

The toggle state of the NUM LOCK and SCROLL LOCK keys is ignored.

refChar  UInt32

The buffer that receives the translated character or characters.

flags  UInt32

This parameter must be 1 if a menu is active, or 0 otherwise.

Return Value

0 = The specified virtual key has no translation for the current state of the keyboard.

1 = One character was copied to the buffer

2 = Two characters were copied to the buffer. This usually happens when a dead-key character (accent or diacritic) stored in the keyboard layout cannot be composed with the specified virtual key to form a single character

Reference