[WONTFIX, deprecated] Issue in InterfaceWindow as child window

[pramod.s]

Hello,

 

I have extended InterfaceWindow class such that I create an child window rather than a popup one, so that the window created acts according to it's parent window. Have just added window style as WS_CHILD

 

It has caused an issue, where for, INTERFACE_FRAME option, there is lot of flickering occurring that is, the frame refresh for child window and parent is overlapping and I am unable to view the content of child window properly.

 

This only occurs for windows (CreatWindowEx) but works fine for Linux (XCreateWindow).

 

Thanks

[manguste]

Could you provide a screenshot?

[pramod.s]

You won't notice the flickering as the screenshot is not able to capture this issue and the flicker very high.

 

I found that this issue occurs only for Windows 7 Basic & Windows Classic Theme (Basic & High Contrast Theme), but work quiet well for other themes. I am using Windows 7 Enterprise on 64-bit OS

[pramod.s]

Can anyone provide a solution to this?

[ulf.schroeter]

You should provide a minimal test scene as otherwise nobody can reproduce the problem and suggest a solution

[manguste]

Yep, I'm afraid the description is far from being enough, we need a test scene.

 

// Topic moved to Bugs

[pramod.s]

I will provide you the sample in a day or two, but a quick replication would occur if you do following step

 

In InterfaceWindow.cpp replace the line

 

// window style

style = WS_POPUP;     to     style = WS_CHILD;

 

Rebuild this InterfaceWindow DLL and Change the windows theme to Basic Windows Classic. Now load this DLL in Interface sample in SDK

[pramod.s]

I found the solution, the application window (AppWindow) has not been set with WS_CLIPCHILDERN style flag, as a result flickering is caused.

If the flag is set than, I think the problem would be solved.

 

@manguste: Can this be confirmed that it is the cause & solution!

[pramod.s]

Update?

[necris]

pramod.s

It would be really useful if you provided a test scene for reproduction.