dcsimg
Login | Register   
LinkedIn
Google+
Twitter
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: Visual Basic
Expertise: Intermediate
Aug 1, 1997

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


Create "Remotely Controllable" Forms

Sometimes I need to control a VB form while focus is on another one. For example, I want form B to be resized when I press the "OK" button on form A. In every form that must be "remote controllable," I include an invisible text box, such as TextCommand, with the Change procedure containing code like this:
 
Sub TextCommand_Change ()
        Dim msg as string       
        msg = Trim$(Me.TextCommand.Text)
        If Len(msg) = 0 Then Exit Sub

        Select Case msg
                Case "COMMAND_RESIZE"
                        Call MyFormResize
                Case "COMMAND_REPAINT"
                        Call MyFormPaint                
                ...
        End Select
        Me.TextCommand = ""
End Sub
You can remotely control this form by sending the appropriate value to its TextCommand field:
 
Sub Command1_Click ()
        formB.TextCommand = "COMMAND_RESIZE"
        DoEvents
End Sub
Use this code to send messages from an MDI form to its child:
 
Dim f As Form
Set f = Me.ActiveForm
f.TextCommand = "COMMAND_RESIZE" 
If you program under VB4 or VB5, you might wish to use Public form properties and methods instead.
Alex Klikouchin
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
Thanks for your registration, follow us on our social networks to keep up-to-date