VDD_Msg_ClrScrn

The VDD_Msg_ClrScrn service initializes the screen for messages displayed when in message mode. If the focus virtual machine is the current virtual machine, this service clears the screen immediately. Otherwise, it initializes the screen when the focus changes.

The virtual shell device uses this service.

Parameters

EBX

Specifies the virtual machine handle.

EAX

Specifies the background attribute.

Return Value

The EAX register contains the width in columns.

The EDX register contains the height in rows.

Comments

A virtual device that uses this service must issue a Begin_Message_Mode control message before calling this service.

Uses

EAX, EDX, Flags