Treeview and form images

[mm0000]

I am developing the treeview control as a menu,however when i click on a node and launch a form and move the form around it leaves a trail of images on the right hand side of the control. Even when I release a form part of the form remains on the screen. How can I prevent these images from appearing when moving / releasing forms?

Thanks in advance.

 

[AirCon]

Even when I release a form part of the form remains on the screen.

Do you mean it still not refreshing after you release the mouse ?

My first suspect, do you lock the screen/form ?

If not, it has to be your vga driver. Upgrade to the latest one. If it still happen, try to replace the driver with Windows Generic VGA driver.
If it still happen then it could the vga card itself is going bad.


-- AirCon --

 

[mm0000]

It only happens when the treeview control is in the background and a form is in front.

 

[AirCon]

Then I guess you must have lock the screen. Do you have a code like

_Screen.Lockscreen = .T.

or

Thisform.LockScreen = .T.

The command will lock your application from refreshing the windows

-- AirCon --

 

[mm0000]

No, I do not have lockscreen scode .

 

[AirCon]

Well, I never encountered refreshing problems other than that. Also I don't know your code..

I'm sorry, have no more idea

-- AirCon --

 

[Mike Lewis]

mm0000,

This sounds like some sort of video driver issue. I have used tree views a lot, and have never seen that behaviour before.

Mike


Mike Lewis
Edinburgh, Scotland

http://www.ml-consult.demon.co.uk