Content

MessageMouse

Describes additional parameters for notifications and events.

You can find more information in comments below.

struct MessageMouse
{
    PointF Position; // Position 
    bool Ctrl; // Ctrl down state 
    bool Alt; // Alt/Menu down state 
    bool Shift; // Shift down state 
    bool Left; // Left mouse button down state 
    bool Middle; // Middle mouse button down state 
    bool Right; // Right mouse button down state 
};