userlist column headers inverted in aero peek

[mappu]

Column headers on the userlist are horizontally inverted when viewing the Aero Peek preview (e.g. mousing over DC++ in the toolbar). This only seems to affect column headers, all other text is correct afaict.

Tested on Windows 7 x64 with 32-bit DC++ 0.822

Screenshot attached

[iceman50 (bdcdevel)]

Could you disable any custom visual styles/themes and use the stock windows 7 theme and reproduce?

[mappu (mappu04)]

Good suggestion: I cannot - after some brief experimenting, it consistently occurs only when this specific visual style is enabled ("Clearscreen Sharp").

Guess that means the bug is in the visual style? Feel free to close,

[poy (poy)]

funny bug! :)

can you check with list headers in other programs, such as the one in "Programs and Features" (from the control panel)?

[mappu (mappu04)]

It doesn't happen with the list header in ``Programs And Features'' - only in mainline DC++. I also use ApexDC with WTL gui, and it doesn't happen there either.

Spy++ tells me list headers are SysHeader32 in all cases.

So maybe the smartwin library is doing something strange with direct uxtheme calls? I don't know what would be specific to a custom visual style.

[poy (poy)]

dwt does play with themes quite heavily, but not to draw list headers. can you try this test? <https://bugs.launchpad.net/dcplusplus/+bug/1191099/+attachment/3704986/+files/test.zip> (it's a list built with dwt.)

[mappu (mappu04)]

Hi, the attached TableTreeTest binaries do not exhibit the same bug, neither the _x86 or _x64 suffixed binaries are affected.

I went a little back in time:
DC++ 0.750, 0.761, and 0.770 do not exhibit the bug, they do not show separate tabs under Aero Peek
DC++ 0.782 and 0.799 *do* also exhibit the bug

Some further information: it looks like the frame border also changes slightly under Aero Peek (you can see this in my original attached screenshot). So i thought it might be an issue with tab style, but the issue occurs regardless of "Standard windows tabs" or "DC++ draw tabs".

[mappu (mappu04)]

I would also add that DC++ 0.782..0.822 inclusive exhibit this bug under aero peek regardless if only one tab is open or if many tabs are open.

[mappu (mappu04)]

>Twilight2013 wrote on 2013-06-19:
>DC++ 0.825 is released. Try it with that version.

I confirm the issue still occurs in DC++ 0.825.

If DWT or the pseudo-MDI has any special handling for Aero peek.. it seems like several controls are slightly moved or have different properties applied under Aero peek, which i think is closer to the core of the issue.

Importantly: You can see this even without the custom visual style.

I've attached screenshots of normal view, aero peek, and pixel diff to show this.