Programatically invoking KeyPress event from Form

[Rahul]

Hi,
Am working with a windows application where I need to show am
application screen saver after 1 of system idle state, and its working
fine if there is no Key board input or Mouse input.
But the problem is i have to scan a barcode and display the details on
the form.But OS is not resognising scanner input as last input (I am
using GetLastInputInfo(),and GetTicks() for calculating systemidle
time)

So I descided to raise a keypress Event while scanning.
I am using "this.OnKeyPress((char)65)" for this.
But it seems that system is not recoginising this as a key press
event.
Can anubody tell the reason? Any other approaches also welcome.

rgds
Rahul

[Arne Janning]

Rahul wrote:

Am working with a windows application where I need to show am
application screen saver after 1 of system idle state, and its working
fine if there is no Key board input or Mouse input.
But the problem is i have to scan a barcode and display the details on
the form.But OS is not resognising scanner input as last input (I am
using GetLastInputInfo(),and GetTicks() for calculating systemidle
time)

So I descided to raise a keypress Event while scanning.
I am using "this.OnKeyPress((char)65)" for this.
But it seems that system is not recoginising this as a key press
event.
Can anubody tell the reason? Any other approaches also welcome.

Hi Rahul,

Shouldn't it be:
this.OnKeyPress(new KeyPressEventArgs((char) 65)); ?

Cheers

Arne Janning

[james]

Why not just use the operating system screen saver and set it to the time
you want ?

JIM
"Rahul" <ra********@yahoo.com> wrote in message
news:a5**************************@posting.google.c om...

Hi,
Am working with a windows application where I need to show am
application screen saver after 1 of system idle state, and its working
fine if there is no Key board input or Mouse input.
But the problem is i have to scan a barcode and display the details on
the form.But OS is not resognising scanner input as last input (I am
using GetLastInputInfo(),and GetTicks() for calculating systemidle
time)

So I descided to raise a keypress Event while scanning.
I am using "this.OnKeyPress((char)65)" for this.
But it seems that system is not recoginising this as a key press
event.
Can anubody tell the reason? Any other approaches also welcome.

rgds
Rahul

[Rahulan Madhavan]

Hi Jim,
The requirement is to show our own screen saver with custom text.This
part is working fine. Only problem is OS in not recognizing the scann
event as I am using GetLastInputInfo().

rgds
Rahul

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[Rahulan Madhavan]

Hi Arne,
Thanks for the correction.But will "((char) 65))" the ASCII value of the
key "A"? As KeyPressEventArgs(char keyChar - ASCII char value of the key
pressed)

rgds
Rahul
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[Arne Janning]

Rahulan Madhavan wrote:

Hi Arne,
Thanks for the correction.But will "((char) 65))" the ASCII value of the
key "A"? As KeyPressEventArgs(char keyChar - ASCII char value of the key
pressed)

Why not simply use "A"?

Cheers

Arne Janning