Fix ColorPicker detecting grid (#24413)

* Fix ColorPicker sampling colour from the grid

Addresses #13831. The sampled pixel is now completely avoided by the grid.
Also, this should address the timing issue from the sampling being done
every 10ms, which overlaps strangely with monitor refresh rates at 16.6ms,
13.3ms, etc.

* Forgot extra library

* Revert rounding in GetPixelColor

* Ensure EnumDisplaySettingsW returns true

Assigning refreshRate only if EnumDisplaySettingsW returns true,
otherwise defaulting to 60.0Hz.

* Run spellchecker

* Spellcheck again

---------

Co-authored-by: Stefan Markovic <stefan@janeasystems.com>

.github/actions/spell-check/excludes.txt

@@ -77,10 +77,10 @@
 ^\.gitmodules$
 ^\Q.github/workflows/spelling2.yml\E$
 ^\Q.pipelines/ESRPSigning_core.json\E$
+^\Qinstaller/PowerToysSetup/Settings.wxs\E$
+^\Qsrc/common/ManagedCommon/ColorFormatHelper.cs\E$
 ^\Qsrc/modules/colorPicker/ColorPickerUI/Shaders/GridShader.cso\E$
 ^\Qsrc/modules/MouseUtils/MouseJumpUI/MainForm.resx\E$
-^\Qsrc/common/ManagedCommon/ColorFormatHelper.cs\E$
-^\Qinstaller/PowerToysSetup/Settings.wxs\E$
 ^\Qsrc/settings-ui/Settings.UI.UnitTests/BackwardsCompatibility/TestFiles/CorruptJson/Microsoft/PowerToys/settings.json\E$
 ^\Qsrc/settings-ui/Settings.UI.UnitTests/BackwardsCompatibility/TestFiles/v0.18.2/Microsoft/PowerToys/PowerRename/power-rename-ui-flags\E$
 ^\Qsrc/settings-ui/Settings.UI.UnitTests/BackwardsCompatibility/TestFiles/v0.19.2/Microsoft/PowerToys/PowerRename/power-rename-ui-flags\E$

.github/actions/spell-check/expect.txt

@@ -29,8 +29,6 @@ AFFINETRANSFORM
 AFX
 AGGREGATABLE
 AHybrid
-Akrotiri
-Aktobe
 ALarger
 alekhyareddy
 ALLAPPS
@@ -43,13 +41,12 @@ amd
 AModifier
 AMPROPERTY
 AMPROPSETID
-Andreanof
+ANDSCANS
 anges
 angularsen
 Animatable
 ansicolor
 ANull
-ANDSCANS
 AOC
 aocfnapldcnfbofgmbbllojgocaelgdd
 APARTMENTTHREADED
@@ -72,10 +69,8 @@ appref
 apps
 appwindow
 appwiz
-appxpackage
 APSTUDIO
 AQS
-Aqtobe
 ARCHITEW
 arcosh
 ARemapped
@@ -94,7 +89,6 @@ ASingle
 ASSOCCHANGED
 ASYNCWINDOWPLACEMENT
 ASYNCWINDOWPOS
-Atikokan
 atl
 atlbase
 atlcom
@@ -102,7 +96,6 @@ atleast
 atlfile
 atlstr
 Attribs
-Atyrau
 aumid
 Aut
 Authenticode
@@ -113,18 +106,14 @@ AUTOMATIONPROPERTIES
 Autorun
 AUTOUPDATE
 AValid
-Avanc
 awakeness
 awakeversion
 AYUV
 azman
 backtracer
 bak
-Bashkortostan
-Bayan
 bbwe
 bck
-Belarus
 betadele
 betsegaw
 BGR
@@ -142,8 +131,8 @@ BITSPIXEL
 bla
 BLACKONWHITE
 Blockquotes
-Blt
 blogs
+Blt
 BLUEGRAY
 Bluetooth
 BLURBEHIND
@@ -164,7 +153,6 @@ bricelam
 BRIGHTGREEN
 Browsable
 bsd
-Bson
 bstr
 bthprops
 bti
@@ -176,14 +164,10 @@ bugreport
 BUILDNUMBER
 buildtask
 buildtransitive
-Burkina
-Buryatia
 BUTTONUP
 BValue
 BYPOSITION
 bytearray
-Cabo
-Caiguna
 CALG
 callbackptr
 Cangjie
@@ -192,6 +176,10 @@ CAPTUREBLT
 CAPTURECHANGED
 CAtl
 cch
+CCHDEVICENAME
+CCHDEVICENAME
+CCHFORMNAME
+CCHFORMNAME
 CCom
 CContext
 cdecl
@@ -208,28 +196,24 @@ Changemove
 chdir
 CHILDACTIVATE
 CHILDWINDOW
-Choibalsan
 chrdavis
 Chrzan
 cht
-Chukotka
-Chuuk
 CIELAB
 CIEXYZ
 cim
 CImage
 cla
 clangformat
-clayton
 CLASSDC
 CLASSNOTAVAILABLE
+clayton
 clickable
 clickonce
 CLIENTEDGE
 clientid
 clientside
 CLIPCHILDREN
-Clipperton
 CLIPSIBLINGS
 Cloneable
 clrcall
@@ -249,7 +233,6 @@ cmpgt
 cmyk
 cne
 cnt
-Cocklebiddy
 coclass
 CODENAME
 codeofconduct
@@ -274,7 +257,6 @@ cominterop
 commandline
 COMMANDTITLE
 commctrl
-Comoros
 compmgmt
 COMPOSITIONFULL
 comsupp
@@ -296,7 +278,6 @@ CONTROLL
 CONTROLPARENT
 Controlz
 copiedcolorrepresentation
-corewebview
 cortana
 cotaskmem
 COULDNOT
@@ -310,7 +291,6 @@ CProj
 CREATESCHEDULEDTASK
 CREATESTRUCT
 CREATEWINDOWFAILED
-createcompatibledc
 critsec
 Crossdevice
 CRSEL
@@ -327,7 +307,6 @@ CTRLALTDEL
 Ctrls
 Ctx
 CUI
-Cunha
 currentculture
 CURRENTDIR
 CURSORINFO
@@ -351,12 +330,10 @@ cziplib
 Dac
 dacl
 damienleroy
-Danmarkshavn
 DARKPURPLE
 DARKTEAL
 DARKYELLOW
 datareader
-datatemplate
 Datavalue
 dataversion
 DATAW
@@ -414,6 +391,8 @@ devblogs
 devdocs
 devenum
 devmgmt
+DEVMODEW
+DEVMODEW
 DEVMON
 devpkey
 DEVSOURCE
@@ -436,7 +415,6 @@ dllmain
 DNLEN
 Dns
 DONOTROUND
-DONTRESOLVEDLLREFERENCES
 DONTVALIDATEPATH
 dotnet
 DPICHANGED
@@ -500,7 +478,6 @@ endpointvolume
 endregion
 ENTERSIZEMOVE
 enu
-enumerationoptions
 EOAC
 epicgames
 epu
@@ -514,10 +491,8 @@ ESettings
 esize
 esn
 esrp
-Eswatini
 etl
 etw
-Eucla
 EUQ
 eurochange
 eventlog
@@ -554,7 +529,6 @@ fancyzones
 FANCYZONESDRAWLAYOUTTEST
 FANCYZONESEDITOR
 Farbraum
-Faroe
 FARPROC
 fdw
 feimage
@@ -594,7 +568,6 @@ FSCTL
 fsmgmt
 FTYPE
 Functiondiscoverykeys
-Futuna
 fwlink
 FZE
 gabime
@@ -612,8 +585,6 @@ gcode
 gdi
 gdiplus
 GDISCALED
-getancestor
-getasynckeystate
 GETDESKWALLPAPER
 GETDLGCODE
 GETDPISCALEDSIZE
@@ -623,7 +594,6 @@ GETSTATE
 GETTEXT
 GETTEXTLENGTH
 GHND
-globalassemblycache
 Globbing
 GMEM
 GNumber
@@ -642,7 +612,6 @@ gwl
 GWLP
 HACCEL
 handlekeyboardhookevent
-handlerroutine
 hangeul
 Hankaku
 hanselman
@@ -672,7 +641,6 @@ HEB
 Heiko
 Helpline
 helptext
-Heure
 HGFE
 hglobal
 hhk
@@ -711,7 +679,6 @@ hotkeycontrol
 hotkeys
 hotlight
 hotspot
-Hovd
 HPAINTBUFFER
 HPALETTE
 HRAWINPUT
@@ -793,7 +760,6 @@ Inlines
 inorder
 INPC
 inproc
-inputdev
 INPUTHARDWARE
 INPUTKEYBOARD
 INPUTLANGCHANGED
@@ -822,7 +788,6 @@ ipcmanager
 IPlugin
 IPower
 IPREVIEW
-ipreviewhandler
 ipreviewhandlervisualssetfont
 IProperty
 IPublic
@@ -837,11 +802,8 @@ iss
 ITask
 ith
 ITHUMBNAIL
-Ittoqqortoormiit
 IUI
 IUnknown
-ivirtualdesktopmanager
-Ivoire
 IWbem
 IWIC
 iwr
@@ -876,20 +838,11 @@ keynum
 keyremaps
 Keytool
 keyup
-Khakassia
-Khanty
-Khovd
 KILLFOCUS
 killrunner
-Kitts
 Knownfolders
-Krai
 KSPROPERTY
-Kwango
-Kwilu
 Kybd
-Kyrgyzstan
-Kyzylorda
 LAlt
 Lambson
 langword
@@ -909,8 +862,8 @@ LCtrl
 Ldone
 ldx
 LEFTDOWN
-LEFTUP
 LEFTSCROLLBAR
+LEFTUP
 lego
 len
 LError
@@ -935,7 +888,6 @@ LMEM
 LMENU
 lnk
 LOADFROMFILE
-LOADLIBRARYASDATAFILE
 LOBYTE
 LOCALAPPDATA
 LOCALDISPLAY
@@ -988,16 +940,12 @@ lstrcmpi
 lstrlen
 LTRB
 LTRREADING
-Luhansk
 luid
 lusrmgr
 LWA
 lwin
 LZero
 lzw
-Maarten
-Macquarie
-Magadan
 Mainwindow
 majortype
 MAJORVERSION
@@ -1005,10 +953,7 @@ makecab
 MAKEINTRESOURCE
 MAKEINTRESOURCEW
 makepri
-Mangere
-Mangystau
 manifestdependency
-Mansi
 MAPPEDTOSAMEKEY
 MAPTOSAMESHORTCUT
 MAPVK
@@ -1016,10 +961,8 @@ Markdig
 markdownpreviewhandler
 MARKDOWNPREVIEWHANDLERCPP
 Markovic
-Marquesas
 martinchrzan
 martinmoene
-Mato
 Maximizable
 MAXIMIZEBOX
 MAXSHORTCUTSIZE
@@ -1031,8 +974,6 @@ MBUTTON
 MBUTTONDBLCLK
 MBUTTONDOWN
 MBUTTONUP
-MCDT
-MCST
 MDICHILD
 MDL
 mdtext
@@ -1043,7 +984,6 @@ mediatype
 Melman
 MENUITEMINFO
 MENUITEMINFOW
-menurc
 MERGECOPY
 MERGEPAINT
 Metadatas
@@ -1059,9 +999,9 @@ mftransform
 Mgmt
 mic
 microsoft
-Midl
 MIDDLEDOWN
 MIDDLEUP
+Midl
 mii
 MIIM
 millis
@@ -1075,7 +1015,6 @@ miniz
 minlevel
 MINORVERSION
 Miracast
-Mishkeegogamang
 mjpg
 mkd
 mkdn
@@ -1091,8 +1030,6 @@ mockapi
 MODECHANGE
 modernwpf
 MODESPRUNED
-Moldova
-Mongala
 MONITORINFO
 MONITORINFOEX
 MONITORINFOEXW
@@ -1137,15 +1074,11 @@ MTND
 Mul
 MULTIPLEUSE
 multizone
-Mundrabilla
 mvvm
 myfile
 MYICON
-MYTZ
 NAMECHANGE
 nameof
-Navassa
-navigatetostring
 NCACTIVATE
 ncc
 NCCALCSIZE
@@ -1167,7 +1100,6 @@ NCRBUTTONDBLCLK
 NCRBUTTONDOWN
 NCRBUTTONUP
 NCRENDERING
-Ndombe
 ndp
 NEEDDISPATCH
 Nemeth
@@ -1211,7 +1143,6 @@ nonclient
 NONCONVERT
 NONELEVATED
 NONINFRINGEMENT
-nonpackaged
 nonstd
 NOOWNERZORDER
 NOPARENTNOTIFY
@@ -1224,7 +1155,6 @@ NOREPOSITION
 norestart
 NORMALDISPLAY
 NORMALUSER
-Noronha
 NOSEARCH
 NOSENDCHANGING
 NOSIZE
@@ -1251,8 +1181,6 @@ nullonfailure
 numberbox
 NUMLOCK
 NUMPAD
-Nunavut
-Nusa
 nwc
 Objbase
 OBJID
@@ -1273,8 +1201,6 @@ oldtheme
 oleaut
 OLECHAR
 OLEDB
-oledbcommand
-oledbconnection
 OLIVEGREEN
 onebranch
 onenote
@@ -1339,6 +1265,8 @@ pdtobj
 pdw
 PDWORD
 pedrolamas
+Pels
+Pels
 PERCEIVEDFLAG
 perfmon
 pesi
@@ -1362,7 +1290,6 @@ PINDIR
 pinfo
 pinvoke
 pipename
-Pitcairn
 PKBDLLHOOKSTRUCT
 PKEY
 plib
@@ -1374,7 +1301,6 @@ plugins
 pluginsmodel
 PMSIHANDLE
 Pnp
-Pohnpei
 Popups
 POPUPWINDOW
 posix
@@ -1415,7 +1341,6 @@ PREVIOUSVERSIONSINSTALLED
 prevpane
 prgms
 pri
-Primorsky
 PRINTCLIENT
 printmanagement
 prm
@@ -1464,7 +1389,6 @@ QITAB
 QITABENT
 qps
 QUERYENDSESSION
-queryfocus
 QUERYOPEN
 QUEUESYNC
 Quickime
@@ -1509,7 +1433,6 @@ regfile
 REGFILTER
 REGFILTERPINS
 REGISTERCLASSFAILED
-registerhotkey
 registrypath
 regkey
 REGPINTYPES
@@ -1536,7 +1459,6 @@ resizers
 RESIZETOFIT
 resmimetype
 RESOURCEID
-resourcemanager
 RESTORETOMAXIMIZED
 restrictedcapabilities
 restrictederrorinfo
@@ -1553,21 +1475,19 @@ rhs
 ricardosantos
 RIDEV
 RIGHTDOWN
-RIGHTUP
 RIGHTSCROLLBAR
+RIGHTUP
 riid
 RKey
 RLO
 RMENU
 RNumber
 roadmap
-Roamable
 robmensching
 Roboto
 rooler
 rop
 roslyn
-Rothera
 roundf
 ROUNDSMALL
 Rpc
@@ -1606,7 +1526,6 @@ SAMESHORTCUTPREVIOUSLYMAPPED
 SAVEFAILED
 scancode
 scanled
-Schd
 schedtasks
 Scip
 scipbe
@@ -1618,10 +1537,8 @@ sddl
 SDKDDK
 sdns
 searchterm
-secauthz
 secpol
 Secur
-securityoverview
 Segoe
 Sekan
 SENDCHANGE
@@ -1657,7 +1574,6 @@ shellex
 SHELLEXECUTEINFO
 SHELLEXECUTEINFOW
 shellscalingapi
-shemptyrecyclebina
 SHFILEINFO
 SHGFI
 Shl
@@ -1722,13 +1638,12 @@ Soref
 SOURCECLIENTAREAONLY
 SOURCEHEADER
 sourcesdirectory
-SPACEBAR
 spam
 spdisp
 spdlog
 spdo
-specialfolder
 spec'ing
+specialfolder
 spesi
 splitwstring
 spsi
@@ -1742,7 +1657,6 @@ Srch
 SRCINVERT
 SRCPAINT
 sre
-Srednekolymsk
 SResize
 srme
 srre
@@ -1794,9 +1708,7 @@ subkey
 SUBLANG
 subquery
 subresource
-Sul
 Superbar
-Suri
 sut
 SVE
 SVGIn
@@ -1816,7 +1728,6 @@ SYSCOMMAND
 SYSDEADCHAR
 sysdm
 SYSICONINDEX
-sysinfo
 SYSKEY
 syskeydown
 SYSKEYUP
@@ -1826,7 +1737,6 @@ systemroot
 SYSTEMTIME
 sysvol
 Tadele
-Tajikistan
 talynone
 TApp
 TApplication
@@ -1854,7 +1764,6 @@ telem
 telephon
 Templated
 templatenamespace
-Tenggara
 testapp
 testcase
 testhost
@@ -1874,7 +1783,6 @@ timedate
 timediff
 timeunion
 timeutil
-timezones
 Titlecase
 TKey
 TLayout
@@ -1887,7 +1795,6 @@ toolkitconverters
 Toolset
 toolwindow
 TOPDOWNDIB
-tostring
 TOUCHEVENTF
 TOUCHINPUT
 touchpad
@@ -1895,15 +1802,12 @@ Towindow
 tracelogging
 traies
 transicc
-Transnistria
 TRAYMOUSEMESSAGE
 triaging
 TRK
 trl
 TServer
-Tshuapa
 TStr
-Tuva
 TValue
 TWF
 tymed
@@ -1917,23 +1821,18 @@ TYPESHORTCUT
 UAC
 UAL
 uap
-uapmanifestschema
 udit
 Udk
-Udmurtia
 Udp
 uefi
 UHash
 UIA
-uiauto
 uid
 UIEx
 uipi
 UIs
-Ulaanbaatar
 ULARGE
 ULONGLONG
-UMsg
 unassign
 uncompilable
 UNCPRIORITY
@@ -1954,13 +1853,11 @@ unmute
 UNORM
 unregistering
 unremapped
-Unstub
 unsubscribe
 unvirtualized
 Updatelayout
 UPGRADINGPRODUCTCODE
 Uptool
-Urville
 Usb
 USEDEFAULT
 USEFILEATTRIBUTES
@@ -1973,7 +1870,6 @@ USRDLL
 Utc
 utf
 uuidof
-Uvs
 uwp
 uxtheme
 UYVY
@@ -2014,7 +1910,6 @@ viewbox
 viewmodel
 vih
 VIRTUALDESK
-virtualkey
 visiblecolorformats
 Visibletrue
 VKey
@@ -2070,7 +1965,6 @@ wikipedia
 wildcards
 winapi
 winappdriver
-winauto
 wincodec
 Wincodecsdk
 wincolor
@@ -2097,7 +1991,6 @@ winevt
 winexe
 winforms
 winfx
-wingdi
 winget
 wingetcreate
 Winhook
@@ -2105,7 +1998,6 @@ winkey
 WINL
 winmd
 winmm
-winmsg
 WINNT
 winres
 winrt
@@ -2116,7 +2008,6 @@ winternl
 WINTHRESHOLD
 winui
 winuiex
-winuser
 winxamlmanager
 wistd
 withinrafael
@@ -2170,11 +2061,9 @@ wtoi
 WTS
 wtsapi
 WTSAT
-wtypes
 Wubi
 wuceffectsi
 WVC
-WVk
 Wwan
 Wwanpp
 XAttribute
@@ -2184,11 +2073,9 @@ XBUTTON
 XBUTTONDBLCLK
 XBUTTONDOWN
 XBUTTONUP
-XControl
 xcopy
 XDocument
 XDOWN
-XUP
 XElement
 XFile
 XIncrement
@@ -2199,14 +2086,16 @@ XPixel
 XResource
 xsi
 XStr
+XUP
 XVIRTUALSCREEN
-Yamalia
 YAxis
 YIncrement
 yinle
 yinwang
 yinyue
 YOffset
+YResolution
+YResolution
 YStr
 YUY
 yuyoyuppe
@@ -2214,7 +2103,6 @@ YUYV
 YVIRTUALSCREEN
 YVU
 YVYU
-Zabaykalsky
 ZEROINIT
 ZIndex
 zipfile
@@ -2222,6 +2110,5 @@ zipfolder
 zonable
 zoneset
 Zoneszonabletester
-Zonev
 Zykova
 zzz

src/modules/colorPicker/ColorPickerUI/Mouse/MouseInfoProvider.cs

@@ -18,7 +18,7 @@ namespace ColorPicker.Mouse
     [PartCreationPolicy(CreationPolicy.Shared)]
     public class MouseInfoProvider : IMouseInfoProvider
     {
-        private const int MousePullInfoIntervalInMs = 10;
+        private readonly double _mousePullInfoIntervalInMs;
         private readonly DispatcherTimer _timer = new DispatcherTimer();
         private readonly MouseHook _mouseHook;
         private readonly IUserSettings _userSettings;
@@ -29,7 +29,8 @@ namespace ColorPicker.Mouse
         [ImportingConstructor]
         public MouseInfoProvider(AppStateHandler appStateMonitor, IUserSettings userSettings)
         {
-            _timer.Interval = TimeSpan.FromMilliseconds(MousePullInfoIntervalInMs);
+            _mousePullInfoIntervalInMs = 1000.0 / GetMainDisplayRefreshRate();
+            _timer.Interval = TimeSpan.FromMilliseconds(_mousePullInfoIntervalInMs);
             _timer.Tick += Timer_Tick;
 
             if (appStateMonitor != null)
@@ -111,6 +112,22 @@ namespace ColorPicker.Mouse
             return (System.Windows.Point)lpPoint;
         }
 
+        private static double GetMainDisplayRefreshRate()
+        {
+            double refreshRate = 60.0;
+
+            foreach (var monitor in MonitorResolutionHelper.AllMonitors)
+            {
+                if (monitor.IsPrimary && EnumDisplaySettingsW(monitor.Name, ENUM_CURRENT_SETTINGS, out DEVMODEW lpDevMode))
+                {
+                    refreshRate = (double)lpDevMode.dmDisplayFrequency;
+                    break;
+                }
+            }
+
+            return refreshRate;
+        }
+
         private void AppStateMonitor_AppClosed(object sender, EventArgs e)
         {
             DisposeHook();

src/modules/colorPicker/ColorPickerUI/NativeMethods.cs

@@ -22,6 +22,9 @@ namespace ColorPicker
         public const int KfAltdown = 0x2000;
         public const int LlkhfAltdown = KfAltdown >> 8;
         public const int MonitorinfofPrimary = 0x00000001;
+        public const int CCHDEVICENAME = 32;
+        public const int CCHFORMNAME = 32;
+        public const uint ENUM_CURRENT_SETTINGS = 4294967295;
         public const int VK_SHIFT = 0x10;
         public const int VK_CONTROL = 0x11;
         public const int VK_MENU = 0x12;
@@ -57,6 +60,13 @@ namespace ColorPicker
         internal static extern bool EnumDisplayMonitors(
             HandleRef hdc, IntPtr rcClip, MonitorEnumProc lpfnEnum, IntPtr dwData);
 
+        [DllImport("user32.dll", SetLastError = false, CharSet = CharSet.Unicode)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        internal static extern bool EnumDisplaySettingsW(
+            string lpszDeviceName,
+            uint iModeNum,
+            out DEVMODEW lpDevMode);
+
         [DllImport("user32.dll")]
         internal static extern bool GetCursorPos(out PointInter lpPoint);
 
@@ -131,6 +141,50 @@ namespace ColorPicker
             public char[] szDevice = new char[32];
         }
 
+        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+        internal struct DEVMODEW
+        {
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = CCHDEVICENAME)]
+            public string dmDeviceName;
+
+            public ushort dmSpecVersion;
+            public ushort dmDriverVersion;
+            public ushort dmSize;
+            public ushort dmDriverExtra;
+            public uint dmFields;
+
+            public int dmPositionX;
+            public int dmPositionY;
+            public uint dmDisplayOrientation;
+            public uint dmDisplayFixedOutput;
+
+            public short dmColor;
+            public short dmDuplex;
+            public short dmYResolution;
+            public short dmTTOption;
+            public short dmCollate;
+
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = CCHFORMNAME)]
+            public string dmFormName;
+
+            public short dmLogPixels;
+            public uint dmBitsPerPel;
+            public uint dmPelsWidth;
+            public uint dmPelsHeight;
+
+            public uint dmDisplayFlags;
+            public uint dmDisplayFrequency;
+
+            public uint dmICMMethod;
+            public uint dmICMIntent;
+            public uint dmMediaType;
+            public uint dmDitherType;
+            public uint dmReserved1;
+            public uint dmReserved2;
+            public uint dmPanningWidth;
+            public uint dmPanningHeight;
+        }
+
         [StructLayout(LayoutKind.Sequential)]
         internal struct LowLevelKeyboardInputEvent
         {

src/modules/colorPicker/ColorPickerUI/Shaders/GridShader.fx

@@ -1,11 +1,13 @@
-float2 mousePosition : register(C1);
+float2 mousePosition : register(C1);
 float radius : register(C2);
 float squareSize : register(c3);
 float textureSize : register(c4);
 
 sampler2D inputSampler : register(S0);
 
-float4 main(float2 uv : TEXCOORD) : COLOR
+float4 main(float2 uv
+            : TEXCOORD) :
+    COLOR
 {
     // do not draw grid where the mouse is
     if (uv.x == mousePosition.y && uv.y == mousePosition.y)
@@ -42,8 +44,8 @@ float4 main(float2 uv : TEXCOORD) : COLOR
     int2 topLeftRectangle = int2(mousePositionX - (mousePositionX % squareSize) - 1, mousePositionY - (mousePositionY % squareSize) - 1);
 
     // do not draw grid inside square even when grid (avoid drawing grid in that area later
-    if (((pixelPositionX >= topLeftRectangle.x + 1 && pixelPositionX <= topLeftRectangle.x + squareSize) && (pixelPositionY == topLeftRectangle.y + 1 || pixelPositionY == topLeftRectangle.y + squareSize)) ||
+    if (((pixelPositionX >= topLeftRectangle.x + 1 && pixelPositionX <= topLeftRectangle.x + squareSize + 1) && (pixelPositionY == topLeftRectangle.y + 1 || pixelPositionY == topLeftRectangle.y + squareSize + 1)) ||
-        ((pixelPositionY >= topLeftRectangle.y + 1 && pixelPositionY <= topLeftRectangle.y + squareSize) && (pixelPositionX == topLeftRectangle.x + 1 || pixelPositionX == topLeftRectangle.x + squareSize)))
+        ((pixelPositionY >= topLeftRectangle.y + 1 && pixelPositionY <= topLeftRectangle.y + squareSize + 1) && (pixelPositionX == topLeftRectangle.x + 1 || pixelPositionX == topLeftRectangle.x + squareSize + 1)))
     {
         return originalColor;
     }