Omron 3G8F7-CRM21, Руководство пользователя

Страница: 115 / 238

95
Explicit Messaging API Section A-6
Call Format BOOL CPNT_RegReceiveExplicitNotifyMessage(
HANDLE Handle,
DWORD ThreadId,
HWND hWnd,
UINT Msg
) ;
Argument
Returned value It returns TRUE when the message has been successfully registered.
It returns FALSE when both the thread ID and the window handle are null or
when an error occurs. Detailed error content can be obtained with
GetLastError( ).
Remarks
•
The value 0 is stored in both of WPARAM and LPARAM of the notified
message.
•
Set either the thread ID or the window handle. If both are set, an error will be
returned and the message will not be registered.
A-6-4 CPNT_UnRegReceiveExplicitNotifyMessage (Unregister Notice of
Explicit Response Message Received)
Purpose Unregister the message to notify when an Explicit response message is
received.
Call Format BOOL CPNT_UnRegReceiveExplicitNotifyMessage (HANDLE Handle) ;
Argument
Returned value It returns TRUE when the notification message has been successfully
unregistered.
It returns FALSE, when an error occurs. Detailed error content can be
obtained with GetLastError( ).
Remarks The function CPNT_SendExplicit must be executed in prior to this function.
Type Parameter Direction Description
HANDLE Handle IN Device handle obtained with the
function CPNT_Open
DWORD ThreadId IN ID of the thread to notify (No
setting: NULL)
HWND hWNd IN Window handle to notify (No
setting: NULL)
UINT Msg IN Notification message (Event ID)
Type Parameter Direction Description
HANDLE Handle IN Device handle obtained with the
function CPNT_Open