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Event Driven Programming





































                                             Figure 5.1 Sending Keystrokes to Windows WordPad.
                          Here is an example showing how to use  SendKeys(). Here, we give the Windows WordPad
                          program the focus with the Visual Basic  AppActivate()  function, passing it the title of that
                          program (which appears in its title bar), and send the string—Hello from Visual Basic! to that
                          program as follows:
                          AppActivate (“Document - WordPad”)

                          SendKeys (“Hello from Visual Basic!”)
                          The result appears in Figure 3.1_now we are able to send keystrokes to another program.
                          5.2.11 Handling Higher Math

                          Well, it may have been a mistake taking on that programming job from the astrophysics
                          department. How do you calculate a hyperbolic cosecant anyway? Can Visual Basic do it?

                          Yes, although not directly. The built-in Visual Basic math functions.
                                  Visual
                                  Basic Math
                                  functions            Calculates This
                                  Function

                                  ABs                  Absolute value
                                  Atn                    Arc tangent



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