Responding To Mouse Click mouse-click
A hook is a mechanism by which an application can intercept events, such as
messages, mouse actions, and keystrokes
(HHOOK SetWindowsHookExA( int idHook, HOOKPROC lpfn, HINSTANCE hmod, DWORD dwThreadId
WH_MOUSE_LL=14
CALLBACK LowLevelMouseProc( _In_ int nCode, _In_ WPARAM wParam, _In_ LPARAM lParam
HC_ACTION=0
wParam [in]
Type: WPARAM
The identifier of the mouse message. This parameter can be one of the following messages: WM_LBUTTONDOWN, WM_LBUTTONUP, WM_MOUSEMOVE, WM_MOUSEWHEEL, WM_MOUSEHWHEEL, WM_RBUTTONDOWN, or WM_RBUTTONUP.
If nCode is less than zero, the hook procedure must return the value returned by CallNextHookEx.
(CallNextHookEx( HHOOK hhk, int nCode, WPARAM wParam, LPARAM lParam