3. Changing the Operation

The user is free to change the drag operation (copy, move, link) at any time during the drag gesture - for example, if she/he presses or releases modifier keys. The initiator then sends an XmOPERATION_CHANGED message.

XmOPERATION_CHANGED

Table: The XmOPERATION_CHANGED message send by the initiator.

Message User Data	Size	Description
data.b[0]	BYTE	Reason: XmOPERATION_CHANGED (0x08)
data.b[1]	BYTE	Byte Order: either 'B' (MSB first) or 'l' (LSB first).
data.b[2..3]	CARD16	DnD Flags: 1 + 3
data.b[4..7]	CARD32	Timestamp: set to the timestamp of the corresponding X event triggering this message.

The receiver then echoes the XmOPERATION_CHANGED message.

Table: The XmOPERATION_CHANGED message echoed by the receiver.

Message User Data	Size	Description
data.b[0]	BYTE	Reason: XmOPERATION_CHANGED (0x88)
data.b[1]	BYTE	Byte Order: either 'B' (MSB first) or 'l' (LSB first).
data.b[2..3]	CARD16	DnD Flags: 1 + 2 + 3
data.b[4..7]	CARD32	Timestamp: set to the timestamp of the corresponding X event triggering this message.