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_IMSVidCtlEvents::KeyDown Method

  • Article

This topic applies to Windows XP or later.
The KeyDown method is called when the user presses a key.

Syntax

void KeyDown(
    short *pKeyCode,
    short Shift
);

Parameters

  • pKeyCode
    Specifies the key code.

  • Shift
    Specifies the shift state. See Remarks.

Return Value

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 Declared in Dshow.h.
DLL Requires Quartz.dll.

See Also

_IMSVidCtlEvents Interface

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Build date: 12/4/2008