[Git][wine/wine][master] 2 commits: explorer: Paint the desktop even without RDW_ERASE.

[Alexandre Julliard (＠julliard)]

Alexandre Julliard pushed to branch master at wine / wine

Commits:
bb850137 by Rémi Bernon at 2025-04-09T22:49:42+02:00
explorer: Paint the desktop even without RDW_ERASE.

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81a24edc by Rémi Bernon at 2025-04-09T22:49:42+02:00
winex11: Avoid setting RDW_ERASE on expose events.

The Medium launcher uses a dialog window procedure, and implements its
background by doing a StretchBlt call on WM_PAINT in the dialog
procedure call, which happens before the window message loop

It then itself calls InvalidateRect(hwnd, NULL, 0), which queues a
WM_PAINT as well but with only the RDW_INVALIDATE flag.

Next, when the window message loop is executed, the WM_PAINT message is
being processed as it should, but as we've invalidated the window with
RDW_ERASE from the expose event, the WM_NCPAINT handler erases the
entire window, clearing the pixels that the launcher has just painted.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57665

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2 changed files:

- dlls/winex11.drv/event.c
- programs/explorer/desktop.c

View it on GitLab: https://gitlab.winehq.org/wine/wine/-/compare/6b7963037f935f7fc20e2278e1916e...