JVCL Help:TJvShellHook.OnShellMessage

 JVCL Help: TJvShellHook.OnShellMessage Event

TJvShellHook

► TJvShellHook Events

[+] TJvShellHook Events

► TJvShellHook Methods

[+] TJvShellHook Methods

► TJvShellHook Properties

[+] TJvShellHook Properties

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Summary

Occurs when a shell message is received.

Pascal

 TJvShellHookEvent = procedure (Sender: TObject; var Msg: TMessage) ofobject;
propertyOnShellMessage: TJvShellHookEvent;

Parameters

Parameters	Description
Msg	The message received. lParam should be interpreted according to the value of wParam.
Sender	The object that called the event.

Description

Write a handler for the OnShellMessage event to take specific action when a shell message is received by the component. Depending on the value of Msg.wParam, Msg.lParam contains various data as described in the table below.

wParam	lParam
HSHELL_GETMINRECT	A pointer to a SHELLHOOKINFO structure.
HSHELL_WINDOWACTIVATEED	The HWND handle of the activated window.
HSHELL_RUDEAPPACTIVATEED	The HWND handle of the activated window.
HSHELL_WINDOWREPLACING	The HWND handle of the window replacing the top-level window.
HSHELL_WINDOWREPLACED	The HWND handle of the window being replaced.
HSHELL_WINDOWCREATED	The HWND handle of the window being created.
HSHELL_WINDOWDESTROYED	The HWND handle of the top-level window being destroyed.
HSHELL_ACTIVATESHELLWINDOW	Not used.
HSHELL_TASKMAN	Can be ignored.
HSHELL_REDRAW	The HWND handle of the window that needs to be redrawn.
HSHELL_FLASH	The HWND handle of the window that needs to be flashed.
HSHELL_ENDTASK	The HWND handle of the window that should be forced to exit.
HSHELL_APPCOMMAND	The APPCOMMAND which has been unhandled by the application or other hooks. See WM_APPCOMMAND in the Windows API Help and use the function GET_APPCOMMAND_LPARAM to extract the parameter.

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