Saturday, August 20, 2011
keyboard working in web interface onkeypress event handler now working
keyboard now working in web interface
that was tricky
i had to prevent the return of the code 13 (enter) in the onkeypress handler
wich i use in my program, as you enter something in a textbox, then press enter or escape
or else my textbox was not returning a string type, but something else... tum tum tum...
that was poping a conversion type error
for escape, it was not returning anything because i cancel the input when esc is pressed
AddHandler CType(flef, mshtml.HTMLDocumentEvents2_Event).onkeypress, AddressOf prekeylef
AddHandler CType(fmid, mshtml.HTMLDocumentEvents2_Event).onkeypress, AddressOf prekeymid
AddHandler CType(fbot, mshtml.HTMLDocumentEvents2_Event).onkeypress, AddressOf prekeybot
'==================
Private Function prekeylef(ByVal e As mshtml.IHTMLEventObj) As Boolean
'System.Console.Write("button clicked: " & e.srcElement.tagName.ToString() & vbCrLf)
reskeylef = e.keyCode
If reskeylef <> 13 And reskeylef <> 27 Then
Return e.keyCode
End If
'System.Console.Write("keypressed " & reskeylef.ToString)
End Function
Private Function prekeymid(ByVal e As mshtml.IHTMLEventObj) As Boolean
'System.Console.Write("button clicked: " & e.srcElement.tagName.ToString() & vbCrLf)
reskeymid = e.keyCode
If reskeymid <> 13 And reskeymid <> 27 Then
'eee
'MsgBox(" keycode" & reskeylef.ToString)
Return e.keyCode
End If
'System.Console.Write("button clicked: " & resbutmidstr & vbCrLf)
End Function
Private Function prekeybot(ByVal e As mshtml.IHTMLEventObj) As Boolean
'System.Console.Write("button clicked: " & e.srcElement.tagName.ToString() & vbCrLf)
reskeybot = e.keyCode
If reskeybot <> 13 And reskeybot <> 27 Then
Return e.keyCode
End If
'System.Console.Write("button clicked: " & resbutbotstr & vbCrLf)
End Function
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