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.NET Forum / Windows Forms / WinForm General / August 2005

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Modifier Keys, Ctrl+Shift, can't trap this event

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Tim_Mac - 30 Aug 2005 11:43 GMT
hi,
i have a keydown event in my user control, and i want to trap
Ctrl+Shift+v.

if(Control.ModifierKeys == (Keys.Control & Keys.Shift))
    if(e.KeyCode == Keys.V)
        this.htmlEditor1.Paste();

it never gets past the first condition. i have also tried:
if((Control.ModifierKeys & Keys.Control & Keys.Shift) != 0)
and
if((Control.ModifierKeys & Keys.Control & Keys.Shift) == (Keys.Control
& Keys.Shift)

but neither of them worked. there seem to be lots of different
approaches to calculating the key combination on this newsgroup.

i added a debug line with Control.ModifierKeys, and it does correctly
output "Control,Shift" when the key combination is pressed.

can anyone tell me how to correctly identify Ctrl+Shift together?
thanks
tim
AMercer - 30 Aug 2005 13:01 GMT
> if(Control.ModifierKeys == (Keys.Control & Keys.Shift))

(Keys.Control & Keys.Shift) is zero.
I think you want (Keys.Control | Keys.Shift) which will contain two 1-bits,
the bit for Control and the bit for Shift.
Tim Mackey - 31 Aug 2005 09:38 GMT
thanks AMercer,
that is exactly it.  i shuold have guessed that OR would produce the right
result.
thanks.
tim

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