Question

Emulate keystroke and get focus

Asked by: Latzi_Marian

Hi Gents,

My question is the following.I written a VB6 application to initiate a 3g Mobile internet connection.Everything works fine untill the point I call the 3g Program.The program actually opens but if the program was minimized my code Shell("C\Program Files\3 Mobile\3 Mobile Broadband\3 Mobile Broadband.exe") will be maximized and has got the focus.At this point I have to press F2 Key to make the actuall connection.How can I do it I don't know.
Also if the 3 Mobile program is closed (not just minimized) the code starts it but I don't have the focus on it so it is not enough to press F2 but I also have to get the focus first.Is there any way to emulate a keystroke? and get trhe focus?

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Asked On
2008-05-13 at 20:27:49ID23400199
Tags

Microsoft

,

Visual Basic

,

vb6

Topics

VB Objects

,

Visual Basic Programming

Participating Experts
1
Points
500
Comments
3

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Answers

 

by: Latzi_MarianPosted on 2008-05-13 at 20:32:20ID: 21561054

Hi,

I would like to rectify.Getting the focus is not an issue.The problem is when the program is started and has the focus how to simulate or tell the system that key F2 is pressed??

 

by: vb_elmarPosted on 2008-05-13 at 21:45:38ID: 21561326

You can send "Alt Tab" to get the focus back:



Private Declare Sub keybd_event Lib "user32.dll" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)

Const VK_TAB = &H9
Const VK_MENU = &H12 'ALT

Private Declare Function MapVirtualKey Lib "user32" Alias "MapVirtualKeyA" (ByVal wCode As Long, ByVal wMapType As Long) As Long



**********************************************************************
Sub sendAltTab
    keybd_event VK_MENU, MapVirtualKey(VK_MENU, 0), 0, 0  ' 0=press alt
    keybd_event VK_TAB, MapVirtualKey(VK_TAB, 0), 0, 0
   
    keybd_event VK_TAB, MapVirtualKey(VK_TAB, 0), 2, 0
    DoEvents
    keybd_event VK_MENU, MapVirtualKey(VK_MENU, 0), 2, 0  ' 2=release alt
End Sub
**********************************************************************

 

by: Latzi_MarianPosted on 2008-05-13 at 22:44:43ID: 31457719

It works with minimal mods.Thank you.

20120131-EE-VQP-002

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