Developers

From DigiTV eHub Help

Contents 1 Windows Messages 1.1 General 1.2 Cursor Control 1.3 Functional 1.4 Recording/Playback

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Windows Messages

Access to DigiTV's internal data and functions is granted to 3rd-pary applications via the Windows messaging interface. When using this interface (ie SendMessage, PostMessage etc) it is important for most of the messages to be directed to the currently active DigiTV window.

DigiTV assigns a window to each connected tuner and simply activates and shows the window that contains the currently viewed device. It is important that the user ascertain which window is the active one before sending any messages so that they are directed to the DigiTV instance currently in view. To do this, use the 'Get Active HWND' message described below.

General

Get Active HWND
Exit the application
Set digital TV mode
Set analogue input (A/V) mode

Cursor Control

Move the GUI cursor down 1 place
Move the GUI cursor up 1 place
Move the GUI cursor left 1 place
Move the GUI cursor right 1 place
Spoof the 'Enter' key ('OK' on remote)
Move the GUI cursor up 8 places
Move the GUI cursor down 8 places

Functional

Message ID	Moniker	Description
32854	IDC_DESCR	Show the programme description overlay
32855	IDC_GLANCE	Show the EPG Menu
124	IDC_MUTE	Toggle the audio mute on/off
173	IDC_USER_0	Clear the screen of any menus
174	IDC_USER_1	Decrement the channel
175	IDC_USER_2	Increment the channel
176	IDC_USER_3	Decrement the volume
177	IDC_USER_4	Increment the volume
250	IDC_ON_NOW	Show the mini-guide overlay
133	IDC_POWEROFF	Power down the PC

Recording/Playback

Message ID	Moniker	Description
1019	IDC_FF	Fast Forward
1017	IDC_RW	Rewind
1001	IDC_STOP	Stop
32781	IDC_PAUSE	Pause
32774	IDC_PLAY	Play
180	IDC_USER_7	Jump back
181	IDC_USER_8	Jump forward