共用方式為

_IMSVidCtlEvents::MouseDown

  • 發行項
 
Microsoft DirectShow 9.0

_IMSVidCtlEvents::MouseDown

This topic applies to Windows XP or later.

The MouseDown method is called when the user presses a mouse key down while the mouse pointer is over the Video Control.

Syntax

  void MouseDown(
  
  short
  
  Button
  ,
  
  short
  
  Shift
  ,
  
  OLE_XPOS_PIXELS
  
  x
  ,
  
  OLE_YPOS_PIXELS
  
  y
  
  );

Parameters

  Button

Specifies the mouse button. See Remarks.

  Shift

Specifies the shift state. For possible values, see _IMSVidCtlEvents::KeyUp.

  x

Specifies the x position.

  y

Specifies the y position.

Return Values

This method does not return a value.

Remarks

The Button parameter may have one of the following values:

Value Meaning
0x1 The left button is pressed.
0x2 The right button is pressed.
0x4 The middle button is pressed.
0x8 The X button 1 was pressed.
0x10 The X button 2 was pressed.

The dispatch identifier (dispid) of this method is DISPID_MOUSEDOWN.

Requirements

  Header: Dshow.h.

  Library: Quartz.dll.

See Also