_IMSVidCtlEvents::MouseDown Method

Article
01/07/2009

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 Value

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

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