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Control.ProcessDialogChar Method

Processes a dialog character.

[Visual Basic]
Protected Overridable Function ProcessDialogChar( _
   ByVal charCode As Char _
) As Boolean
[C#]
protected virtual bool ProcessDialogChar(
 char charCode
);
[C++]
protected: virtual bool ProcessDialogChar(
 __wchar_t charCode
);
[JScript]
protected function ProcessDialogChar(
   charCode : Char
) : Boolean;

Parameters

charCode
The character to process.

Return Value

true if the character was processed by the control; otherwise, false.

Remarks

This method is called during message preprocessing to handle dialog characters, such as control mnemonics. This method is called only if the IsInputChar method indicates that the control is not processing the character. The ProcessDialogChar method simply sends the character to the parent's ProcessDialogChar method, or returns false if the control has no parent. The Form class overrides this method to perform actual processing of dialog characters. This method is only called when the control is hosted in a Windows Forms application or as an ActiveX control.

Notes to Inheritors:  When overriding the ProcessDialogChar method in a derived class, a control should return true to indicate that it has processed the character. For characters that are not processed by the control, the result of calling the base class's ProcessDialogChar method should be returned. Controls will seldom, if ever, need to override this method.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

.NET Framework Security: 

See Also

Control Class | Control Members | System.Windows.Forms Namespace

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