[Bug 50193] New: Minimizing a window of a Delphi app leads to a window completely disappearing without any ability to restore it
WineHQ Bugzilla
wine-bugs at winehq.org
Thu Nov 26 04:20:12 CST 2020
https://bugs.winehq.org/show_bug.cgi?id=50193
Bug ID: 50193
Summary: Minimizing a window of a Delphi app leads to a window
completely disappearing without any ability to restore
it
Product: Wine
Version: 1.2-rc2
Hardware: x86-64
OS: Linux
Status: NEW
Keywords: download, regression, source, testcase
Severity: normal
Priority: P2
Component: winex11.drv
Assignee: wine-bugs at winehq.org
Reporter: dmitry at baikal.ru
Regression SHA1: 61e50e15ba45ad54655f98619f5ef33917033165
Distribution: ---
Created attachment 68708
--> https://bugs.winehq.org/attachment.cgi?id=68708
test app (source + binary)
Applications created with Delphi create secondary top level windows without
WS_EX_APPWINDOW style set, and minimizing such a window leads to a window
completely disappearing without any ability to restore it.
This is a regression caused by
commit 61e50e15ba45ad54655f98619f5ef33917033165
Author: Alexandre Julliard <julliard at winehq.org>
Date: Fri May 28 12:14:43 2010 +0200
winex11: Map zero-size windows and set an empty window region for them.
Admittedly Windows behaviour is weird: it minimizes such windows in an MDI
style with desktop as an MDI client and Delphi window as an MDI child.
https://source.winehq.org/patches/data/196455 is an attempt to fix this
regression.
Before this patch: no taskbar window for a normal or minimized owned window.
After this patch: no taskbar window for normal owned window, after a window
being minimized a taskbar button appears, after a window being restored a
taskbar button gets removed.
Attachment contains a simple test app (source + binary) that reproduces this
problem.
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