FMX.Forms.TVKStateChangeMessage

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Delphi

TVKStateChangeMessage = class(System.Messaging.TMessage)

C++

class PASCALIMPLEMENTATION TVKStateChangeMessage : public System::Messaging::TMessageBase

Properties

Type	Visibility	Source	Unit	Parent
class	public	FMX.Forms.pas FMX.Forms.hpp	FMX.Forms	FMX.Forms

Description

Message sent when the state of the virtual keyboard of the system running your application changes.

TVKStateChangeMessage provides the following properties:

• KeyboardVisible indicates whether the virtual keyboard is visible (True) or not (False).
• KeyboardBounds indicates the position and dimensions of the virtual keyboard. If the keyboard is not visible, KeyboardBounds is equal to TRect.Empty.

Platform Support

FireMonkey only sends this type of message on Android, iOS, and Windows.

See Also

• FMX.Forms.TVKStateChangeMessage.KeyboardVisible
• FMX.Forms.TVKStateChangeMessage.KeyboardBounds

• System.Messaging.TMessage

• List of FireMonkey Message Types
• Sending and Receiving Messages Using the RTL

• System.Messaging (Delphi) code example

• System.Messaging (C++) code example