How to generate Keyboard events ?

[User 3831761]

Hi, How to generate Keyboard events. I want to generate Alt+Tab Event in middle of my application. How to generate Alt+Tab event in a dialog based application. Thanks in advance. With best wishes.

[Emilio Garavaglia]

Just call SendMessage to the intended window, giving the arguments the value you want to expect from that event.

2 bugs found. > recompile ... 65534 bugs found. :doh:

[_Superman_]

SendInput[^]

«_Superman_» I love work. It gives me something to do between weekends.

[Adam Roderick J]

keybd_event http://msdn.microsoft.com/en-us/library/ms646304(VS.85).aspx[^]

[Kushagra Tiwari]

You can use either SendMessage() or PostMessage() depending on you requirement. There are a few subtle differences in the ways you can send messages in Windows, but the basic difference between PostMessage and SendMessage is that SendMessage sends a message to another window immediately by calling that window's procedure and waiting for it to return, whereas PostMessage queues the message in an MSG structure and returns immediately"without waiting. MSG is short for message, not monosodium glutamate. With SendMessage, the receiving app processes the message immediately, rather than at some later time, by fetching it from its queue. For example, suppose you write: pWnd->SendMessage(WM_KEYDOWN); pWnd->PostMessage(WM_KEYDOWN); There are different indicators for which key was pressed .Kindly, go through that list and do the apporopiate :) Kushagra I hate coding but I love to develop :)

[User 3831761]

Thank you. Using keybd_event how to generate Alt+Tab. I tried both of the below options but failed. 1 ------------ keybd_event( VK_MENU ,0x45,KEYEVENTF_EXTENDEDKEY | 0, 0 ); keybd_event( VK_TAB ,0x45,KEYEVENTF_EXTENDEDKEY | 0, 0 ); keybd_event( VK_TAB ,0x45,KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP,0); keybd_event( VK_MENU ,0x45,KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP,0); 2 ------------ keybd_event( VK_MENU | VK_TAB ,0x45,KEYEVENTF_EXTENDEDKEY | 0, 0 ); keybd_event( VK_MENU | VK_TAB ,0x45,KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP,0); Please let me know how to use for Alt+Tab combination to change the window.

[Adam Roderick J]

There is small mistake in the code hardware scan code is wrong it should be for alt 0X12 and for tab 0X09 i put delay just to see the output. :) keybd_event( VK_MENU ,0x12,KEYEVENTF_EXTENDEDKEY | 0, 0 ); Sleep(1); keybd_event( VK_TAB ,0x09,KEYEVENTF_EXTENDEDKEY | 0, 0 ); Sleep(1000); keybd_event( VK_TAB ,0x12,KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP,0); keybd_event( VK_MENU ,0x09,KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP,0);