Show system menu of a hwnd

[_pi]

i try to show the system menu of a hwnd.
after searching in google and google groups i found this
Delphi tip#155: show system menu.

int SysMenu always returns values>0.
does using point even make sense ?

Code:

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int hwnd=win("" "SciCalc" "Calc")
POINT p;
GetCursorPos(&p);
int SysMenu=GetSystemMenu(hwnd 0)
int intSelected = TrackPopupMenuEx(SysMenu TPM_LEFTBUTTON|TPM_RIGHTBUTTON|TPM_RETURNCMD p.x p.y hwnd 0)
SendMessage(hwnd WM_SYSCOMMAND intSelected 0)

thanks.