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Enum MouseEventFlags

A set of bit flags that specify various aspects of mouse motion and button clicks. The bits in this member can be any reasonable combination of the following values. The bit flags that specify mouse button status are set to indicate changes in status, not ongoing conditions. For example, if the left mouse button is pressed and held down, MOUSEEVENTF_LEFTDOWN is set when the left button is first pressed, but not for subsequent motions. Similarly, MOUSEEVENTF_LEFTUP is set only when the button is first released. You cannot specify both the MOUSEEVENTF_WHEEL flag and either MOUSEEVENTF_XDOWN or MOUSEEVENTF_XUP flags simultaneously in the dwFlags parameter, because they both require use of the mouseData field. See

Namespace: Dapplo.Windows.Input.Enums
Assembly: Dapplo.Windows.Input.dll
Syntax
public enum MouseEventFlags : uint

Fields

Name Description
Absolute

The dx and dy members contain normalized absolute coordinates. If the flag is not set, dxand dy contain relative data (the change in position since the last reported position). This flag can be set, or not set, regardless of what kind of mouse or other pointing device, if any, is connected to the system. For further information about relative mouse motion, see the following Remarks section.

HorizontalWheel

The wheel was moved horizontally, if the mouse has a wheel. The amount of movement is specified in mouseData. Windows XP/2000: This value is not supported.

LeftDown

The left button was pressed.

LeftUp

The left button was released.

MiddleDown

The middle button was pressed.

MiddleUp

The middle button was released.

Move

Movement occurred.

MoveNocoalesce

The WM_MOUSEMOVE messages will not be coalesced. The default behavior is to coalesce WM_MOUSEMOVE messages. Windows XP/2000: This value is not supported.

None

Default value

RightDown

The right button was pressed.

RightUp

The right button was released.

Virtualdesk

Maps coordinates to the entire desktop. Must be used with MOUSEEVENTF_ABSOLUTE.

Wheel

The wheel was moved, if the mouse has a wheel. The amount of movement is specified in mouseData.

XDown

An X button was pressed.

XUp

An X button was released.

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