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Control.IsInputChar Method

Determines if a character is an input character that the control recognizes.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

'Declaration
<UIPermissionAttribute(SecurityAction.InheritanceDemand, Window := UIPermissionWindow.AllWindows)> _
Protected Overridable Function IsInputChar ( _
	charCode As Char _
) As Boolean
'Usage
Dim charCode As Char 
Dim returnValue As Boolean 

returnValue = Me.IsInputChar(charCode)

Parameters

charCode
Type: System.Char

The character to test.

Return Value

Type: System.Boolean
true if the character should be sent directly to the control and not preprocessed; otherwise, false.

Call the IsInputChar method to determine whether the character specified by the charCode parameter is an input character that the control wants. This method is called during window message preprocessing to determine whether the specified input character should be preprocessed or sent directly to the control. If IsInputChar returns true, the specified character is sent directly to the control. If IsInputChar returns false, the specified character is preprocessed and only sent to the control if it is not consumed by the preprocessing phase. The preprocessing of a character includes checking whether the character is a mnemonic of another control.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

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