Messages.TWMMouse Record

TWMMouse represents a Windows mouse message.

Pascal

TWMMouse = packed record
  Msg: Cardinal;
  Keys: Longint;
  case Integer of
    0: (XPos: Smallint;
        YPos: Smallint;);
    1: (Pos: TSmallPoint;
        Result: Longint;);
end;

C++

struct TWMMouse {
  unsigned Msg;
  Longint Keys;
  Smallint XPos;
  Smallint YPos;
  TSmallPoint Pos;
  Longint Result;
};

File

Messages

Description

TWMMouse is the data structure used for all Windows mouse messages. The Msg field is the Windows message code. The Keys field indicates whether various keys are down. It is a combination of the values listed in the following table.

Value	Meaning
MK_CONTROL	The Control key is down.
MK_LBUTTON	The left mouse button is down.
MK_MBUTTON	The middle mouse button is down.
MK_RBUTTON	The right mouse button is down.
MK_SHIFT	The Shift key is down.

The Pos field (or the XPos and YPos fields) indicates the global coordinates of the mouse pointer. The Result field holds the value returned by the application processing the message.