Difficulty using Print Screen key

[MichaelW]

On my Windows 2000 system the Print Screen key generates only a WM_KEYUP message with wParam = VK_SNAPSHOT. Is this not enough to trap the key?

[Vortex]

Hi MichaelW,

You are right. Detecting the WM_KEYUP message with wParam = VK_SNAPSHOT is doing the job. I attached an example. Hitting PRINT SCREEN while the window is active will display a message box. ( see the attached example )

[dedndave]

this seems simple enough   :P

warning: you won't here a beep under vista - too bad, so sad

[Magnum]

It beeps using Fn + PrtScr.

[dedndave]

oops   :P
you caught me

i didn't filter out the shift-key cases
easy to do, though

[Magnum]

The PrtScr key doesn't work on IBM Thinkpads like it does on most other computers.

It takes hitting a key labelled fn + PrtScr/insert to save an image.

[Tedd]

The PrtScr key doesn't work on IBM Thinkpads like it does on most other computers.

It takes hitting a key labelled fn + PrtScr/insert to save an image.

This is normal for laptop keyboards. To reduce their size, some (hopefully lesser used) keys are escaped by the Fn key. So, Insert/PrtScr is the Insert key by default, but can be transformed into the PrtScr key via Fn.

[Magnum]

I miss the extra number keys.

I like to make some of the extended ascii characters on occasion.

[dedndave]

you might write a little program to show the ibm graphics char set (OEM_CHARSET)
then - pick one and it puts it into the clipboard   :P

[Tedd]

I miss the extra number keys.

I like to make some of the extended ascii characters on occasion.

NumLock activates the number keypad - notice the letter keys on the right also have numbers?
Then you can just hold alt and enter a character number, as usual.

Of course, a tray icon with a popup palette to select characters would be nicer..

[dedndave]

you could probably get the handle of the window that has keyboard focus before you show the window
then - send WM_CHAR directly - no clipboard
i think we are well on our way to developing "the next big app"   

[Magnum]

I thin a big app would show the supervisor password for the BIOS chip made by a company that thought frustrating users is funny. 

[dedndave]

get a rope !

actually, it is hackable
you should be able to boot up in DOS and dump the flash contents
one of the things about assembly language - if you know your way around, there are no secrets