How do i stop flickering graphics

I have 6 picturebox controls and load each of them with a command button control array.  The zorder at design time of the picture boxes is 5 to 0 and the corresponding control index is 0 to 5 connecting to the corresponding command buttons 0 to 5.  When i click command control button 0 the picturebox being loaded flickers and the background show through.  It also happens at some other points in the app.  How can i stop the flickering?
emidiodAsked:
Who is Participating?
 
AllenC_JrConnect With a Mentor Commented:
What Pictures are You Loading into the Picture Boxes? If they are gif's then that is your problem, gif's have that problem with flickering. If you are not using a transparent background then do this(if you are loading the pictures)

pic1.AutoRedraw=True
Pic1.PaintPicture LoadLicture(Filename)
pic1.AutoRedraw=False

Or if the pics are already loaded do this

pic1.AutoRedraw=True
Pic1.PaintPicture Pic1
pic1.AutoRedraw=False
0
 
VBDesignsCommented:
Try using the LockWindowUpdate API to turn off the Window refreshing of the parent (i.e. the VB Form) for the period between the load(s) and refresh of the pictures:

Declare Function LockWindowUpdate Lib "user32" (ByVal hwndLock As Long) As Long

Good luck!

Dave
0
 
emidiodAuthor Commented:
Thanks, i tried it, but it the background still flickers through before loading the picture box
0
Cloud Class® Course: Microsoft Azure 2017

Azure has a changed a lot since it was originally introduce by adding new services and features. Do you know everything you need to about Azure? This course will teach you about the Azure App Service, monitoring and application insights, DevOps, and Team Services.

 
watyCommented:
Hide the picture when you load the bitmap. Show it when all is loaded.
0
 
emidiodAuthor Commented:
Thanks but I am doing that.  There seems to be a zorder problem in VB.  If i have 3 picture boxes say pic1 , pic2 and pic3 and their zorders are 2,1,0 respectively (ie pic3 is on top).  Whenever i load pic2 and pic3 everything is OK, but when i bring pic1 to the front by changing its ZORDER the form background flickers through.  Is there a solution
0
 
jfaylingCommented:
I sure you already did this, but I guess I have to ask.  Have you set the autoredraw property of the picturebox to true?
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.