processing keystrokes

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#131

From: schumacker
Date: Mon, 16 Feb 2004 10:38

30 lines
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hi everyone!

i want to do the following:

i have a TEdit.
i want to press a key whit that TEdit as the focus.
i want to see the key pressed, and then, if is a valid key for me,
write it into the TEdit, and if is not valid, i dont want to write
anything.

Let me show you an example:

my valid keys are, for example: 'a', 'b', 'c'

i press the 'p' key over the TEdit.
It�s not a valid key, so i dont want nothing new in the TEdit.
Now i press the 'b' key over the TEdit.
It�s a valid key, so i want a 'b' in my TEdit.

�How can i do this?

I tried with the OnKeyDown, OnKeyUp and OnKeyPressed events. With them
i can only see if the key pressed is valid or not, but i cant avoid
the character to be shown in the TEdit.

�Anyone have any idea?

Please help me. Thanx

Schumacker

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Subject: processing keystrokes
Date: 16 Feb 2004 02:38:11 -0800
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