TSDL_MouseButtonEvent = record
type_: UInt8; // SDL_MOUSEBUTTONDOWN or SDL_MOUSEBUTTONUP
which: UInt8; // The mouse device index
state: UInt8; // The mouse button index
button: UInt8; // SDL_PRESSED or SDL_RELEASED
x: UInt16; // The X coordinates of the mouse at press time
y: UInt16; // The Y coordinates of the mouse at press time
end;
TSDL_MouseButtonEvent is a member of the TSDL_Event union and is used when an event of type SDL_MOUSEBUTTONDOWN or SDL_MOUSEBUTTONUP is reported.
When a mouse button press or release is detected then number of the button pressed (from 1 to 255, with 1 usually being the left button and 2 the right) is placed into button, the position of the mouse when this event occured is stored in the x and the y fields. Like TSDL_KeyboardEvent , information on whether the event was a press or a release event is stored in both the type and state fields, but this should be obvious.