C / C++ / MFC

HRESULT SelectItemAtPoint(POINT point)
{
    VARIANT varItem;
    IAccessible* pAcc;
    HRESULT hr = AccessibleObjectFromPoint(point, &pAcc, &varItem);
    if ((hr == S_OK))
    {
        hr = pAcc->accSelect((SELFLAG_TAKEFOCUS | SELFLAG_TAKESELECTION), varItem);
        VariantClear(&varItem);
        pAcc->Release();
    }
    return hr;
}

hr = pAcc->accSelect((SELFLAG_TAKEFOCUS | SELFLAG_TAKESELECTION), varItem);

Snake.Position += Snake.Velocity;

typedef vec2_t{
 int x;
 int y;
} vec2;

vec2 snakePosition;
vec2 snakeVelocity;

snakePosition.x += snakeVelocity.x;
snakePosition.y += snakeVelocity.y;

switch(pressedKey)
{
    case leftArrow:
        snakeVelocity = (vec2){-1,0};
        break;
    case rightArrow:
        snakeVelocity = (vec2){1,0};
        break;
    case upArrow:
        snakeVelocity = (vec2){0,-1};
        break;
    case downArrow:
        snaeVelocity = (vec2){0,1};
        break;
}

Return Value
ATOM
If the function succeeds, the return value is the newly created atom.
If the function fails, the return value is zero. To get extended error information, call GetLastError.

The values of string atoms are in the range 0xC000 (MAXINTATOM) through 0xFFFF.

char sSnpDesc[50];