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  1. ; Example 1 - calling the MessageBox API directly
  2. $result = DllCall("user32.dll", "int", "MessageBox", "hwnd", 0, "str", "Some text", "str", "Some title", "int", 0)
  3.  
  4. ; Example 2 - calling a function that modifies parameters
  5. $hwnd = WinGetHandle("Untitled - Notepad")
  6. $result = DllCall("user32.dll", "int", "GetWindowText", "hwnd", $hwnd, "str", "", "int", 32768)
  7. msgbox(0, "", $result[0])    ; number of chars returned
  8. msgbox(0, "", $result[2])    ; Text returned in param 2