ANNMOVE

Summary

The ANNMOVE structure contains information about an annotation object when moving the object in automated mode.

Syntax

typedef struct tagANNMOVE 
{ 
   L_UINT uStructSize; 
   L_INT nState; 
   POINT pt; 
} ANNMOVE, *pANNMOVE;

Members

uStructSize

Size of the ANNMOVE structure. Use sizeof(ANNMOVE).

nState

Value that indicates the state of the move. Possible values are:

Value	Meaning
STATE_BEGIN	[1]
STATE_UPDATE	[2]
STATE_END	[3]

pt

Current move location (in client coordinates)

Comments

An annotation object can be moved in automated mode by dragging the object with the mouse. Doing so causes a WM_LTANNEVENT message to be sent where wParam is ANNCHANGE_MOVE and lParam points to a structure of type ANNCHANGEPARAM. In this case, the union of ANNCHANGEPARAM is type ANNMOVE. This message is sent when one of the following events occurs:

Starting the move (with a mouse click): Two messages are sent, one before and one after the initial mouse click. The nState field is set to STATE_BEGIN. The pt field contains the location of the mouse click, in client coordinates.
Moving the object (by dragging the mouse): Pairs of messages (one before and one after) are sent for each mouse move. The nState field is set to STATE_UPDATE, and the pt field contains the location of the mouse.
Ending the move (by releasing the mouse): One pair of messages is sent (one before and one after) for the mouse up. The nState field is set to STATE_END, and the pt field contains the location of the mouse when released.

Usage

ANNCHANGEPARAM