How to prevent and destroy WM_KEYDOWN message in VB6?

Question

0.00/5 (No votes)

See more:

Hi,
Im using VB6 to create an app, I want to prevent and destroy WM_KEYDOWN message in TextBox control, when I press key 'a' in this TextBox then I want to destroy this key ('a'), in my opinion I prevent WM_KEYDOWN with wParam=keycode of 'a', then I destroy it, but Im not sucessful. Please help me solve this problem. Thanks. (I want to use a Hook).

Posted 2-May-11 4:29am

Andrewpeter

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Manfred Rudolf Bihy · Answer 1 · 2011-05-02T05:23:00

Try like this:

Code assumes that the text box is named textBox1

VB

Private Sub textBox1_KeyPress(KeyAscii As Integer)
    If (KeyAscii >> ASC("a") AND KeyAscii <> ASC("A") Then
        Exit Sub
    Else
        KeyAscii = 0
    End If
End Sub

This procedure needs to be hooked up to the keypress event.

Best Regards,

-MRB