ShiftConstants ShiftConstants ShiftConstants ShiftConstants Enum



This API is now obsolete.

Provides constants for compatibility with the shift parameter mask constants in Visual Basic 6.0.

public enum class ShiftConstants
[System.Obsolete("Microsoft.VisualBasic.Compatibility.* classes are obsolete and supported within 32 bit processes only.")]
public enum ShiftConstants
type ShiftConstants = 
Public Enum ShiftConstants


AltMask AltMask AltMask AltMask 4

Equivalent to the Visual Basic 6.0 constant vbAltMask.

CtrlMask CtrlMask CtrlMask CtrlMask 2

Equivalent to the Visual Basic 6.0 constant vbCtrlMask.

ShiftMask ShiftMask ShiftMask ShiftMask 1

Equivalent to the Visual Basic 6.0 constant vbShiftMask.


In Visual Basic 6.0, shift parameter mask constants were used to represent the state of modifier keys in the Shift parameter of various key and mouse event handlers. In Visual Basic, the parameters for key and mouse events have changed, and these constants are no longer necessary. These constants enable code that has been upgraded from Visual Basic 6.0 to continue to run without additional modification.


Functions and objects in the Microsoft.VisualBasic.Compatibility.VB6 namespace are provided for use by the tools for upgrading from Visual Basic 6.0 to Visual Basic. In most cases, these functions and objects duplicate functionality that you can find in other namespaces in the .NET Framework. They are necessary only when the Visual Basic 6.0 code model differs significantly from the .NET Framework implementation.

Applies to

See also