From: jimtabor <james.tabor@reactos.org>
Date: Wed, 27 Mar 2019 22:39:04 +0000 (-0500)
Subject: [NtUser] Fix maximizing to window edge
X-Git-Tag: 0.4.13-dev~127
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=0197c4f875d3332dbc4656a6360e3c7e9def2ed5;ds=sidebyside

[NtUser] Fix maximizing to window edge

Cover up the edge of the frame while maximizing the window to desktop.
Fixes CORE-15893.
---

diff --git a/win32ss/user/ntuser/winpos.c b/win32ss/user/ntuser/winpos.c
index 2083526ee3b..d7f5ad6a639 100644
--- a/win32ss/user/ntuser/winpos.c
+++ b/win32ss/user/ntuser/winpos.c
@@ -958,6 +958,10 @@ co_WinPosGetMinMaxInfo(PWND Window, POINT* MaxSize, POINT* MaxPos,
 
     adjust = IntGetWindowBorders(adjustedStyle, exstyle);
 
+    // Handle special case while maximized. CORE-15893
+    if ((adjustedStyle & WS_THICKFRAME) && !(adjustedStyle & WS_CHILD) && !(adjustedStyle & WS_MINIMIZE))
+         adjust += 2;
+
     xinc = yinc = adjust;
 
     if ((adjustedStyle & WS_THICKFRAME) && (adjustedStyle & WS_CHILD) && !(adjustedStyle & WS_MINIMIZE))