Лабораторная работа: Обчислення координат курсору миші при переміщенні

PAINTSTRUCT ps ;

RECT rect ;

RECT rectInv;

int x, y;

rectInv.top = 0;

rectInv.left = 0;

rectInv.right = 400;

rectInv.bottom = 60;

switch (iMsg)

{

case WM_CREATE :

return 0 ;

case WM_MOUSEMOVE:

cX = LOWORD(lParam);

cY = HIWORD(lParam);

InvalidateRect(hwnd, &rectInv, true);

return 0;

case WM_LBUTTONDOWN:

sX = LOWORD(lParam);

sY = HIWORD(lParam);

T1 = clock();

S = 0;

speed = 0;

wayOnTable = 0;

return 0;

case WM_RBUTTONDOWN:

x = LOWORD(lParam);

y = HIWORD(lParam);

S = sqrt((double)(( x - sX ) * ( x - sX ) + ( y - sY ) * ( y - sY)));