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HHook = SetWindowsHookEx(WH_KEYBOARD, AddressOf fncKeyboardProc, Application.Hinstance, GetCurrentThreadId) '"0" - a key is being pressed, "1" - a key is being released In this tutorial, I will cover all there is to know about the VBA Editor and some useful options that you should know when coding in Excel VBA. If Left$(WorksheetFunction.Hex2Bin(Left$(WorksheetFunction.Dec2Hex(lParam, 8), 1)), 1) = "1" Then The first step to working with VBA in Excel is to get yourself familiarized with the Visual Basic Editor (also called the VBA Editor or VB Editor). Private Function fncKeyboardProc(ByVal idHook As Long, ByVal wParam As Long, ByVal lParam As Long) As LongįncKeyboardProc = CallNextHookEx(hHook, idHook, wParam, ByVal lParam) To finish the loop (and the subroutine) you can press the Space key.ĭeclare Function SetWindowsHookEx Lib "user32" Alias "SetWindowsHookExA" (ByVal idHook As Long, ByVal lpfn As Long, ByVal hmod As Long, ByVal dwThreadId As Long) As Longĭeclare Function CallNextHookEx Lib "user32" (ByVal hHook As Long, ByVal ncode As Long, ByVal wParam As Long, lParam As Any) As Longĭeclare Function UnhookWindowsHookEx Lib "user32" (ByVal hHook As Long) As Longĭeclare Function GetCurrentThreadId Lib "kernel32" () As Long A record will be printed to the Immediate window if you press any key while the code is running. There is a loop with 1.000.000 steps which does nothing. To demonstrate how it works run the subTest subroutine. Furthermore for getting the identifier of the thread with which the hook procedure is associated I used the GetCurrentThreadId. And the UnhookWindowsHookEx is necessary to unhook. In the description of the SetWindowsHookEx is highly recommended using of the CallNextHookEx function. I used WH_KEYBOARD which installs the KeyboardProc.
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The type of the installed procedure depends on the idHook parameter. I found the SetWindowsHookEx which installs an application-defined hook procedure into a hook chain. There is no "keyboard" object in VBA that's why I looked for a suitable API function.
#EXCEL VBA ON KEY PRESS HOW TO#
Probably there exists another (better) way how to reach your targer without it. I really think the writing of an endless loop in VBA isn't a good idea.