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_IMSVidCtlEvents::KeyDown

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Microsoft DirectShow 9.0

_IMSVidCtlEvents::KeyDown

This topic applies to Windows XP or later.

The KeyDown method is called when the user presses a key.

Syntax

  void KeyDown(
  
  short*
  
  KeyCode
  ,
  
  short
  
  Shift
  
  );

Parameters

  pKeyCode

Specifies the key code.

  Shift

Specifies the shift state. See Remarks.

Return Values

This method does not return a value.

Remarks

The Shift, Ctrl and ALT keys have the following values:

Value Meaning
1 The Shift key was pressed.
2 The Ctrl key was pressed.
4 The ALT key was pressed.

The value of the Shift parameter may also be any bitwise OR combination of these values.

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

Requirements

  Header: Dshow.h.

  Library: Quartz.dll.

See Also