mdi children strob when resizing. why?

[xandaz]

i'm having problems with the mdi children of and app i'm working on. is there some style i should include somewhere? thanks in advance. I'm not be an ass am i?

[xandaz]

   I would also like to know of there is another message other than WS_SIZE when a window is MAXIMIZED. not too much to ask i hope.

[Greenhorn]

Is this helping you ? Tutorial 32: Multiple Document Interface (MDI)

[xandaz]

   thanks greenhorn. i'm checking it out.

[xandaz]

    I'm not sure that the changes made make much difference. Child windows are still strobing when resized. Thanks anyway.

[Adamanteus]

 Maybe, need double buffering when painting ...

[hutch--]

Set the parent window colour to 0 (transparent). You get the flickering due to double repaints.

[xandaz]

   Thanks ppls.

[xandaz]

  Nah....it's still strobing. Thanks anyway. Double buffering? how do i do that?

[Adamanteus]

 In this topic is example.

[hutch--]

What is the WNDCLASSEX style set to ?

If you are using => CS_HREDRAW or CS_VREDRAW

Change it to

CS_BYTEALIGNCLIENT or CS_BYTEALIGNWINDOW

[Adamanteus]

 By my experiance WNDCLASSEX - better for small controls, as buttons, for resizeable windows better WNDCLASS - as more options by silence, will work more sure win GDI of differ OS versions.

[xandaz]

    Thanks Hutch, ty guys. worked like a charm. 

[jj2007]

By my experiance WNDCLASSEX - better for small controls, as buttons, for resizeable windows better WNDCLASS - as more options by silence, will work more sure win GDI of differ OS versions.

I made a test with a "difficult" window that has a lot of flicker, and could not see any difference (on Win7-64)

[Adamanteus]

 As is it's not seenable difference