Jaafar Tribak
Well-known Member
- Joined
- Dec 5, 2002
- Messages
- 9,797
- Office Version
- 2016
- Platform
- Windows
I wrote some code in the past that enables the user to highlight the cell currently under the mouse pointer ... See a code example here : https://www.mrexcel.com/forum/excel...s-selecting-cell-post5240255.html#post5240255
The code in the link works fine except that it clears the undo stack because it temporarly alters the cell interior color, font color etc ..
To fix this problem, I resorted to the GDI API functions to highlight the portion of the screen device context layer situated right above the cell without needing to change the cell color property thus keeping the Undo stack intact.
Here is a workbook example
I have written and tested the code in excel 2010 and all works as expected however I also tested the code on excel 2013 on another computer and the cell flashes and the highlight ends up vanishing so I have a request for users of excel 2013 and later versions : Can you please test the code and let me know if you experience the problem I described ?
Thank you.
1- Code in a Standard Module:
2- Code in a Class Module : ( Calss name: HighlightClass)
3- Code in the ThisWorkbook Module:
The code in the link works fine except that it clears the undo stack because it temporarly alters the cell interior color, font color etc ..
To fix this problem, I resorted to the GDI API functions to highlight the portion of the screen device context layer situated right above the cell without needing to change the cell color property thus keeping the Undo stack intact.
Here is a workbook example
I have written and tested the code in excel 2010 and all works as expected however I also tested the code on excel 2013 on another computer and the cell flashes and the highlight ends up vanishing so I have a request for users of excel 2013 and later versions : Can you please test the code and let me know if you experience the problem I described ?
Thank you.
1- Code in a Standard Module:
Code:
Option Explicit
Public Enum FRAME_STYLE
FOCUSED_NO_COLOR = 0
ETCHED_NO_COLOR = 1
STRAIGHT = 2
DASH = 3
DOT = 4
End Enum
Private Type POINTAPI
X As Long
Y As Long
End Type
Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type
Private Type BITMAP
bmType As Long
bmWidth As Long
bmHeight As Long
bmWidthBytes As Long
bmPlanes As Integer
bmBitsPixel As Integer
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
bmBits As LongPtr
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
bmBits As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
End Type
Private Type BITMAPINFOHEADER '40 bytes
biSize As Long
biWidth As Long
biHeight As Long
biPlanes As Integer
biBitCount As Integer
biCompression As Long
biSizeImage As Long
biXPelsPerMeter As Long
biYPelsPerMeter As Long
biClrUsed As Long
biClrImportant As Long
End Type
Private Type RGBQUAD
rgbBlue As Byte
rgbGreen As Byte
rgbRed As Byte
rgbReserved As Byte
End Type
Private Type BITMAPINFO
bmiHeader As BITMAPINFOHEADER
bmiColors As RGBQUAD
End Type
Private Type BLENDFUNCTION
BlendOp As Byte
BlendFlags As Byte
SourceConstantAlpha As Byte
AlphaFormat As Byte
End Type
Private Type LOGBRUSH
lbStyle As Long
lbColor As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
lbHatch As LongPtr
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
lbHatch As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
End Type
Private Type LOGPEN
lopnStyle As Long
lopnWidth As POINTAPI
lopnColor As Long
End Type
Private Type RGB
R As Long
G As Long
B As Long
End Type
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
Private Declare PtrSafe Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long
Private Declare PtrSafe Function GetActiveWindow Lib "user32" () As LongPtr
Private Declare PtrSafe Function GetDC Lib "user32" (ByVal hwnd As LongPtr) As LongPtr
Private Declare PtrSafe Function ReleaseDC Lib "user32" (ByVal hwnd As LongPtr, ByVal hDC As LongPtr) As Long
Private Declare PtrSafe Function CreateCompatibleBitmap Lib "gdi32" (ByVal hDC As LongPtr, ByVal nWidth As Long, ByVal nHeight As Long) As LongPtr
Private Declare PtrSafe Function CreateCompatibleDC Lib "gdi32" (ByVal hDC As LongPtr) As LongPtr
Private Declare PtrSafe Function DeleteDC Lib "gdi32" (ByVal hDC As LongPtr) As Long
Private Declare PtrSafe Function DeleteObject Lib "gdi32" (ByVal hObject As LongPtr) As Long
Private Declare PtrSafe Function SelectObject Lib "gdi32" (ByVal hDC As LongPtr, ByVal hObject As LongPtr) As LongPtr
Private Declare PtrSafe Function FillRect Lib "user32" (ByVal hDC As LongPtr, lpRect As RECT, ByVal hBrush As LongPtr) As Long
Private Declare PtrSafe Function DrawEdge Lib "user32" (ByVal hDC As LongPtr, qrc As RECT, ByVal edge As Long, ByVal grfFlags As Long) As Long
Private Declare PtrSafe Function DrawFocusRect Lib "user32" (ByVal hDC As LongPtr, lpRect As RECT) As Long
Private Declare PtrSafe Function SetRect Lib "user32" (lpRect As RECT, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Private Declare PtrSafe Function AlphaBlend Lib "msimg32.dll" (ByVal hDC As LongPtr, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal hDC As LongPtr, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal BLENDFUNCT As Long) As Long
Private Declare PtrSafe Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As LongPtr)
Private Declare PtrSafe Function RedrawWindow Lib "user32" (ByVal hwnd As LongPtr, lprcUpdate As RECT, ByVal hrgnUpdate As LongPtr, ByVal fuRedraw As Long) As Long
Private Declare PtrSafe Function CreateBrushIndirect Lib "gdi32" (lpLogBrush As LOGBRUSH) As LongPtr
Private Declare PtrSafe Function BitBlt Lib "gdi32" (ByVal hDestDC As LongPtr, ByVal X As Long, ByVal Y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As LongPtr, ByVal xSrc As Long, ByVal ySrc As Long, ByVal dwRop As Long) As Long
Private Declare PtrSafe Function TransparentBlt Lib "msimg32.dll" (ByVal hDC As LongPtr, ByVal X As Long, ByVal Y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As LongPtr, ByVal xSrc As Long, ByVal ySrc As Long, ByVal nSrcWidth As Long, ByVal nSrcHeight As Long, ByVal crTransparent As Long) As Boolean
Private Declare PtrSafe Function GetDIBits Lib "gdi32" (ByVal aHDC As LongPtr, ByVal hBitmap As LongPtr, ByVal nStartScan As Long, ByVal nNumScans As Long, lpBits As Any, lpBI As BITMAPINFO, ByVal wUsage As Long) As Long
Private Declare PtrSafe Function SetDIBitsToDevice Lib "gdi32" (ByVal hDC As LongPtr, ByVal X As Long, ByVal Y As Long, ByVal dx As Long, ByVal dy As Long, ByVal SrcX As Long, ByVal SrcY As Long, ByVal Scan As Long, ByVal NumScans As Long, Bits As Any, BitsInfo As BITMAPINFO, ByVal wUsage As Long) As Long
Private Declare PtrSafe Function LineTo Lib "gdi32" (ByVal hDC As LongPtr, ByVal X As Long, ByVal Y As Long) As Long
Private Declare PtrSafe Function MoveToEx Lib "gdi32" (ByVal hDC As LongPtr, ByVal X As Long, ByVal Y As Long, lpPoint As POINTAPI) As Long
Private Declare PtrSafe Function CreatePenIndirect Lib "gdi32" (lpLogPen As LOGPEN) As LongPtr
Private Declare PtrSafe Function GetWindowRect Lib "user32" (ByVal hwnd As LongPtr, lpRect As RECT) As Long
Private Declare PtrSafe Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As LongPtr, ByVal hWnd2 As LongPtr, ByVal lpsz1 As String, ByVal lpsz2 As String) As LongPtr
Private Declare PtrSafe Function GetClientRect Lib "user32" (ByVal hwnd As LongPtr, lpRect As RECT) As Long
Private Declare PtrSafe Function ClientToScreen Lib "user32" (ByVal hwnd As LongPtr, lpPoint As POINTAPI) As Long
Private Declare PtrSafe Function GetRgnBox Lib "gdi32" (ByVal hRgn As LongPtr, lpRect As RECT) As Long
Private Declare PtrSafe Function CombineRgn Lib "gdi32" (ByVal hDestRgn As LongPtr, ByVal hSrcRgn1 As LongPtr, ByVal hSrcRgn2 As LongPtr, ByVal nCombineMode As Long) As Long
Private Declare PtrSafe Function CreateRectRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As LongPtr
Private Declare PtrSafe Function RectInRegion Lib "gdi32" (ByVal hRgn As LongPtr, lpRect As RECT) As Long
Private Declare PtrSafe Function IsWindowVisible Lib "user32" (ByVal hwnd As LongPtr) As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
Private Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long
Private Declare Function GetActiveWindow Lib "user32" () As Long
Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function ReleaseDC Lib "user32" (ByVal hwnd As Long, ByVal hdc As Long) As Long
Private Declare Function CreateCompatibleBitmap Lib "gdi32" (ByVal hdc As Long, ByVal nWidth As Long, ByVal nHeight As Long) As Long
Private Declare Function CreateCompatibleDC Lib "gdi32" (ByVal hdc As Long) As Long
Private Declare Function DeleteDC Lib "gdi32" (ByVal hdc As Long) As Long
Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long
Private Declare Function SelectObject Lib "gdi32" (ByVal hdc As Long, ByVal hObject As Long) As Long
Private Declare Function FillRect Lib "user32" (ByVal hdc As Long, lpRect As RECT, ByVal hBrush As Long) As Long
Private Declare Function DrawEdge Lib "user32" (ByVal hdc As Long, qrc As RECT, ByVal edge As Long, ByVal grfFlags As Long) As Long
Private Declare Function DrawFocusRect Lib "user32" (ByVal hdc As Long, lpRect As RECT) As Long
Private Declare Function SetRect Lib "user32" (lpRect As RECT, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Private Declare Function AlphaBlend Lib "msimg32.dll" (ByVal hdc As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal hdc As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal BLENDFUNCT As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
Private Declare Function RedrawWindow Lib "user32" (ByVal hwnd As Long, lprcUpdate As RECT, ByVal hrgnUpdate As Long, ByVal fuRedraw As Long) As Long
Private Declare Function CreateBrushIndirect Lib "gdi32" (lpLogBrush As LOGBRUSH) As Long
Private Declare Function BitBlt Lib "gdi32" (ByVal hDestDC As Long, ByVal X As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal dwRop As Long) As Long
Private Declare Function TransparentBlt Lib "msimg32.dll" (ByVal hdc As Long, ByVal X As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal nSrcWidth As Long, ByVal nSrcHeight As Long, ByVal crTransparent As Long) As Boolean
Private Declare Function GetDIBits Lib "gdi32" (ByVal aHDC As Long, ByVal hBitmap As Long, ByVal nStartScan As Long, ByVal nNumScans As Long, lpBits As Any, lpBI As BITMAPINFO, ByVal wUsage As Long) As Long
Private Declare Function SetDIBitsToDevice Lib "gdi32" (ByVal hdc As Long, ByVal X As Long, ByVal y As Long, ByVal dx As Long, ByVal dy As Long, ByVal SrcX As Long, ByVal SrcY As Long, ByVal Scan As Long, ByVal NumScans As Long, Bits As Any, BitsInfo As BITMAPINFO, ByVal wUsage As Long) As Long
Private Declare Function LineTo Lib "gdi32" (ByVal hdc As Long, ByVal X As Long, ByVal y As Long) As Long
Private Declare Function MoveToEx Lib "gdi32" (ByVal hdc As Long, ByVal X As Long, ByVal y As Long, lpPoint As POINTAPI) As Long
Private Declare Function CreatePenIndirect Lib "gdi32" (lpLogPen As LOGPEN) As Long
Private Declare Function GetWindowRect Lib "user32" (ByVal hwnd As Long, lpRect As RECT) As Long
Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Private Declare Function GetClientRect Lib "user32" (ByVal hwnd As Long, lpRect As RECT) As Long
Private Declare Function ClientToScreen Lib "user32" (ByVal hwnd As Long, lpPoint As POINTAPI) As Long
Private Declare Function GetRgnBox Lib "gdi32" (ByVal hRgn As Long, lpRect As RECT) As Long
Private Declare Function CombineRgn Lib "gdi32" (ByVal hDestRgn As Long, ByVal hSrcRgn1 As Long, ByVal hSrcRgn2 As Long, ByVal nCombineMode As Long) As Long
Private Declare Function CreateRectRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Private Declare Function RectInRegion Lib "gdi32" (ByVal hRgn As Long, lpRect As RECT) As Long
Private Declare Function IsWindowVisible Lib "user32" (ByVal hwnd As Long) As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
Private Const EDGE_ETCHED = &H6
Private Const BF_RECT = &HF
Private Const RDW_INVALIDATE = &H1
Private Const RDW_ALLCHILDREN = &H80
Private Const AC_SRC_OVER = &H0
Private Const SRCCOPY = &HCC0020
Private Const DIB_RGB_COLORS = 0&
Private Const BI_RGB = 0&
Private Const CAPTUREBLT = &H40000000
Private Const SIMPLEREGION = 2
Private Const COMPLEXREGION = 3
Private Const RGN_AND = 1
Private Const RGN_OR = 2
Private Const RGN_DIFF = 4
Public Sub HighlightCellUsingAlphaBlendMethod(ByVal Cell As Range, ByVal Color As Long)
Call AlphaBlendRoutine(Cell, Color)
End Sub
Public Sub HighlightCellUsingDIBitsMethod(ByVal Cell As Range, ByVal Color As Long)
Call DIBitsRoutine(Cell, Color)
End Sub
Public Sub DeHighlightCell(ByVal Cell As Range)
Dim tCellRect As RECT
tCellRect = ObjRect(Cell)
With tCellRect
Call SetRect(tCellRect, .Left - 1, .Top - 1, .Right + 1, .Bottom + 1)
End With
RedrawWindow 0, tCellRect, 0, RDW_INVALIDATE + RDW_ALLCHILDREN
DoEvents
End Sub
Public Sub DrawFrame(ByVal Cell As Range, ByVal FrameStyle As FRAME_STYLE, ByVal FrameColor As Long)
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
Dim hDC As LongPtr, hPen As LongPtr, hOldPen As LongPtr, hRgn As LongPtr, hCellRgn As LongPtr
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
Dim hDC As Long, hPen As Long, hOldPen As Long, hRgn As Long, hCellRgn As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
Dim tRangeRect As RECT, tRealVisibleRect As RECT, tFrameRect As RECT, tPen As LOGPEN, tpt As POINTAPI
Dim lLeft As Long, lTop As Long, lRight As Long, lBottom As Long
Dim RgnType As Long
hDC = GetDC(0)
tRangeRect = ObjRect(Cell)
tRealVisibleRect = GetRealVisibleRangeRectPix
With tRealVisibleRect
hRgn = CreateRectRgn(.Left, .Top, .Right, .Bottom)
End With
With tRangeRect
hCellRgn = CreateRectRgn(.Left, .Top, .Right, .Bottom)
End With
Call CombineRgn(hRgn, hRgn, hCellRgn, RGN_AND)
Call GetRgnBox(hRgn, tFrameRect)
With tFrameRect
lLeft = .Left: lTop = .Top
lRight = .Right: lBottom = .Bottom
End With
Call ShapeOverlapsCell(tFrameRect, RgnType)
If (tFrameRect.Left <> 0 And tFrameRect.Right <> 0) Then
If FrameStyle = ETCHED_NO_COLOR Then
Call DrawEdge(hDC, tFrameRect, EDGE_ETCHED, BF_RECT): GoTo Xit
End If
If FrameStyle = FOCUSED_NO_COLOR Then
Call DrawFocusRect(hDC, tFrameRect): GoTo Xit
End If
Else
GoTo Xit
End If
If RgnType = SIMPLEREGION Then
With tFrameRect
lLeft = .Left: lTop = .Top
lRight = .Right: lBottom = .Bottom
End With
End If
With tPen
.lopnColor = FrameColor
.lopnStyle = FrameStyle - 2
.lopnWidth.X = 1
.lopnWidth.Y = 1
End With
hPen = CreatePenIndirect(tPen)
hOldPen = SelectObject(hDC, hPen)
Call MoveToEx(hDC, lLeft, lTop, tpt)
Call LineTo(hDC, lRight, lTop)
Call MoveToEx(hDC, lRight, lTop, tpt)
Call LineTo(hDC, lRight, lBottom)
Call MoveToEx(hDC, lRight, lBottom, tpt)
Call LineTo(hDC, lLeft, lBottom)
Call MoveToEx(hDC, lLeft, lBottom, tpt)
Call LineTo(hDC, lLeft, lTop)
Call SelectObject(hDC, hOldPen)
Xit:
Call ReleaseDC(0, hDC)
Call DeleteObject(hPen)
Call DeleteObject(hOldPen)
Call DeleteObject(hRgn)
Call DeleteObject(hCellRgn)
End Sub
Public Sub GetCurPos(ByRef X As Long, ByRef Y As Long)
Dim tpt As POINTAPI
GetCursorPos tpt
X = tpt.X: Y = tpt.Y
End Sub
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
Public Function GetTheActiveWindow() As LongPtr
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
Public Function GetTheActiveWindow() As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
GetTheActiveWindow = GetActiveWindow
End Function
'**************************************************************************
' PRIVATE ROUTINES
'**************************************************************************
Private Sub AlphaBlendRoutine(ByVal Cell As Range, ByVal Color As Long)
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
Dim hDC As LongPtr, hMemDc As LongPtr, hMemBmp As LongPtr, hOldBmp As LongPtr, hCellRgn As LongPtr, hRgn As LongPtr, hBrush As LongPtr
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
Dim hDC As Long, hMemDc As Long, hMemBmp As Long, hOldBmp As Long, hCellRgn As Long, hRgn As Long, hBrush As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
Dim tBF As BLENDFUNCTION, lBF As Long
Dim tFill As LOGBRUSH, tRangeRect As RECT, tRealRect As RECT, tRgnRect As RECT
Dim lLeft As Long, lTop As Long, lRight As Long, lBottom As Long, RgnType As Long
tRangeRect = ObjRect(Cell)
hDC = GetDC(0)
hMemDc = CreateCompatibleDC(hDC)
tRealRect = GetRealVisibleRangeRectPix
With tRealRect
hRgn = CreateRectRgn(.Left, .Top, .Right, .Bottom)
End With
With tRangeRect
hCellRgn = CreateRectRgn(.Left, .Top, .Right, .Bottom)
End With
Call CombineRgn(hRgn, hRgn, hCellRgn, RGN_AND)
Call GetRgnBox(hRgn, tRgnRect)
With tRgnRect
lLeft = .Left: lTop = .Top
lRight = .Right: lBottom = .Bottom
End With
'
Call ShapeOverlapsCell(tRgnRect, RgnType)
With tRgnRect
lLeft = .Left: lTop = .Top
lRight = .Right: lBottom = .Bottom
End With
hMemBmp = CreateCompatibleBitmap(hDC, lRight - lLeft, lBottom - lTop)
hOldBmp = SelectObject(hMemDc, hMemBmp)
Call SetRect(tRgnRect, 0, 0, lRight - lLeft, lBottom - lTop)
tFill.lbColor = Color
hBrush = CreateBrushIndirect(tFill)
Call FillRect(hMemDc, tRgnRect, hBrush)
With tBF
.BlendOp = AC_SRC_OVER
.BlendFlags = 0
.SourceConstantAlpha = 50
.AlphaFormat = 0
End With
Call CopyMemory(lBF, tBF, LenB(lBF))
Call AlphaBlend(hDC, lLeft, lTop, lRight - lLeft, lBottom - lTop, hMemDc, 0, 0, lRight - lLeft, lBottom - lTop, lBF)
Call SelectObject(hMemDc, hOldBmp)
Call ReleaseDC(0, hDC)
Call DeleteDC(hMemDc)
Call DeleteObject(hMemBmp)
Call DeleteObject(hBrush)
Call DeleteObject(hOldBmp)
Call DeleteObject(hCellRgn)
Call DeleteObject(hRgn)
End Sub
Private Sub DIBitsRoutine(ByVal Cell As Range, ByVal Color As Long)
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
Dim hDC As LongPtr, hMemDc As LongPtr, hMemBmp As LongPtr, hOldBmp As LongPtr, hCellRgn As LongPtr, hRgn As LongPtr
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
Dim hDC As Long, hMemDc As Long, hMemBmp As Long, hOldBmp As Long, hCellRgn As Long, hRgn As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
Dim tRangeRect As RECT, tRealRect As RECT, tRgnRect As RECT, tBMInfo As BITMAPINFO, tPixels() As RGBQUAD
Dim X As Currency, Y As Currency, lCellColor As Long
Dim lLeft As Long, lTop As Long, lRight As Long, lBottom As Long
lCellColor = Cell.Interior.Color
tRangeRect = ObjRect(Cell)
hDC = GetDC(0)
hMemDc = CreateCompatibleDC(hDC)
tRealRect = GetRealVisibleRangeRectPix
With tRealRect
hRgn = CreateRectRgn(.Left, .Top, .Right, .Bottom)
End With
With tRangeRect
hCellRgn = CreateRectRgn(.Left, .Top, .Right, .Bottom)
End With
Call CombineRgn(hRgn, hRgn, hCellRgn, RGN_AND)
Call GetRgnBox(hRgn, tRgnRect)
With tRgnRect
lLeft = .Left: lTop = .Top
lRight = .Right: lBottom = .Bottom
End With
hMemBmp = CreateCompatibleBitmap(hDC, lRight - lLeft, lBottom - lTop)
hOldBmp = SelectObject(hMemDc, hMemBmp)
Call BitBlt(hMemDc, 0, 0, lRight - lLeft, lBottom - lTop, hDC, lLeft, lTop, SRCCOPY Or CAPTUREBLT)
tBMInfo.bmiHeader.biSize = LenB(tBMInfo.bmiHeader)
Call GetDIBits(hMemDc, hMemBmp, 0, 0, 0, tBMInfo, DIB_RGB_COLORS)
ReDim tPixels(tBMInfo.bmiHeader.biWidth, tBMInfo.bmiHeader.biHeight)
tBMInfo.bmiHeader.biCompression = BI_RGB
Call GetDIBits(hMemDc, hMemBmp, 0, tBMInfo.bmiHeader.biHeight, tPixels(1, 1), tBMInfo, DIB_RGB_COLORS)
Call SelectObject(hMemDc, hOldBmp)
For X = 0 To tBMInfo.bmiHeader.biWidth
For Y = 0 To tBMInfo.bmiHeader.biHeight
If tPixels(X, Y).rgbRed = ColorToRGB(lCellColor).R And _
tPixels(X, Y).rgbGreen = ColorToRGB(lCellColor).G And _
tPixels(X, Y).rgbBlue = ColorToRGB(lCellColor).B Then
tPixels(X, Y).rgbRed = ColorToRGB(Color).R: tPixels(X, Y).rgbGreen = ColorToRGB(Color).G: tPixels(X, Y).rgbBlue = ColorToRGB(Color).B
End If
Next Y
Next X
Call SetDIBitsToDevice(hDC, lLeft, lTop, tBMInfo.bmiHeader.biWidth, tBMInfo.bmiHeader.biHeight, 0, 0, 0, tBMInfo.bmiHeader.biHeight, tPixels(1, 1), tBMInfo, DIB_RGB_COLORS)
Call ReleaseDC(0, hDC)
Call DeleteDC(hMemDc)
Call DeleteObject(hMemBmp)
Call DeleteObject(hOldBmp)
Call DeleteObject(hCellRgn)
Call DeleteObject(hRgn)
End Sub
Private Function ShapeOverlapsCell(ByRef HighlightRect As RECT, ByRef RGN_ERR As Long) As Boolean
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
Dim hShapeRgn As LongPtr, hHighlightRgn As LongPtr, hDestRgn As LongPtr
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
Dim hShapeRgn As Long, hHighlightRgn As Long, hDestRgn As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
Dim tTempRect As RECT, lCounter As Long
For lCounter = 1 To ActiveSheet.Shapes.Count
If ActiveSheet.Shapes(lCounter).FormControlType <> xlGroupBox Then
tTempRect = ObjRect(ActiveSheet.Shapes(lCounter))
If hDestRgn = 0 Then
hDestRgn = CreateRectRgn(tTempRect.Left, tTempRect.Top, tTempRect.Right, tTempRect.Bottom)
End If
hShapeRgn = CreateRectRgn(tTempRect.Left, tTempRect.Top, tTempRect.Right, tTempRect.Bottom)
Call CombineRgn(hDestRgn, hDestRgn, hShapeRgn, RGN_OR)
End If
Next lCounter
If RectInRegion(hDestRgn, HighlightRect) Then
hHighlightRgn = CreateRectRgn(HighlightRect.Left, HighlightRect.Top, HighlightRect.Right, HighlightRect.Bottom)
RGN_ERR = CombineRgn(hHighlightRgn, hHighlightRgn, hDestRgn, RGN_DIFF)
If RGN_ERR = COMPLEXREGION Then
With HighlightRect
.Left = 0: .Top = 0: .Right = 0: .Bottom = 0
End With
Else
GetRgnBox hHighlightRgn, HighlightRect
End If
ShapeOverlapsCell = True
End If
DeleteObject hHighlightRgn
DeleteObject hShapeRgn
DeleteObject hDestRgn
End Function
Private Function GetRealVisibleRangeRectPix() As RECT
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
Static hWbk As LongPtr
Dim hDesk As LongPtr, hVert As LongPtr, hHoriz As LongPtr
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
Static hWbk As Long
Dim hDesk As Long, hVert As Long, hHoriz As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
Dim tDeskRect As RECT, WrkbookRect As RECT, VerRect As RECT, HorizRect As RECT, tPt1 As POINTAPI, tpt2 As POINTAPI
hDesk = FindWindowEx(Application.hwnd, 0, "XLDESK", vbNullString)
Call GetWindowRect(hDesk, tDeskRect)
If hWbk = 0 Then hWbk = GetThisWorkbookHwnd
Call GetClientRect(hWbk, WrkbookRect)
tPt1.X = WrkbookRect.Left: tPt1.Y = WrkbookRect.Top
tpt2.X = WrkbookRect.Right: tpt2.Y = WrkbookRect.Bottom
Call ClientToScreen(hWbk, tPt1)
Call ClientToScreen(hWbk, tpt2)
WrkbookRect.Left = tPt1.X: WrkbookRect.Top = tPt1.Y
WrkbookRect.Right = tpt2.X: WrkbookRect.Bottom = tpt2.Y
hVert = FindWindowEx(hWbk, 0, "NUIScrollbar", "Vertical")
hHoriz = FindWindowEx(hWbk, 0, "NUIScrollbar", "Horizontal")
If IsWindowVisible(hHoriz) Or ThisWorkbook.Windows(1).DisplayWorkbookTabs Then
Call GetWindowRect(hHoriz, HorizRect)
End If
If IsWindowVisible(hVert) Then
Call GetWindowRect(hVert, VerRect)
End If
With Application.ActiveWindow
GetRealVisibleRangeRectPix.Left = Application.Max(.ActivePane.PointsToScreenPixelsX(.VisibleRange.Cells(1, 1).Left) + (.Zoom / 100), tDeskRect.Left)
GetRealVisibleRangeRectPix.Top = Application.Max(.ActivePane.PointsToScreenPixelsY(.VisibleRange.Cells(1, 1).Top) + (.Zoom / 100), tDeskRect.Top)
GetRealVisibleRangeRectPix.Right = Application.Min(WrkbookRect.Right - (VerRect.Right - VerRect.Left), tDeskRect.Right)
GetRealVisibleRangeRectPix.Bottom = Application.Min(WrkbookRect.Bottom - (HorizRect.Bottom - HorizRect.Top), tDeskRect.Bottom)
End With
End Function
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
Private Function GetThisWorkbookHwnd() As LongPtr
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
Private Function GetThisWorkbookHwnd() As Long
[URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
Dim sCaption As String
On Error GoTo Xit
sCaption = ThisWorkbook.Windows(1).Caption
ThisWorkbook.Windows(1).Caption = "@@{}@@"
GetThisWorkbookHwnd = FindWindowEx(FindWindowEx(Application.hwnd, 0, "XLDESK", vbNullString), 0, "EXCEL7", "@@{}@@")
Xit:
ThisWorkbook.Windows(1).Caption = sCaption
End Function
Private Function ColorToRGB(ByVal Col As Long) As RGB
ColorToRGB.R = &HFF& And Col
ColorToRGB.G = (&HFF00& And Col) \ 256
ColorToRGB.B = (&HFF0000 And Col) \ 65536
End Function
Private Function ObjRect(ByVal Obj As Object) As RECT
Dim oPane As Pane
Set oPane = ThisWorkbook.Windows(1).ActivePane
With Obj
ObjRect.Left = oPane.PointsToScreenPixelsX(.Left - 1)
ObjRect.Top = oPane.PointsToScreenPixelsY(.Top - 1)
ObjRect.Right = oPane.PointsToScreenPixelsX(.Left + .Width)
ObjRect.Bottom = oPane.PointsToScreenPixelsY(.Top + .Height)
End With
End Function
'I chose not to use this Approach because the 'TransparentBlt' API causes memory leaks.
'======================================================================
'Private Sub TransparentBltRoutine(ByVal Cell As Range, ByVal Color As Long)
'
' [URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If"]#If[/URL] VBA7 Then
' Dim hdc As LongPtr, hMemDc As LongPtr, hMemBmp As LongPtr, hMemDc2 As LongPtr, hMemBmp2 As LongPtr, hBrush As LongPtr, hOldBmp As LongPtr, hOldBmp2 As LongPtr
' [URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=Else"]#Else[/URL]
' Dim hdc As Long, hMemDc As Long, hMemBmp As Long, hMemDc2 As Long, hMemBmp2 As Long, hBrush As Long, hOldBmp As Long, hOldBmp2 As Long
' [URL="https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End"]#End[/URL] If
'
' Dim tRangeRect As RECT, tRealRect As RECT, tMemRect As RECT, tMemRect2 As RECT, tFill As LOGBRUSH
' Dim lLeft As Long, lTop As Long, lRight As Long, lBottom As Long, lCellColor As Long
'
' lCellColor = Cell.Interior.Color
' tRangeRect = ObjRect(Cell)
' hdc = GetDC(0)
'
' With tRangeRect
' hMemDc = CreateCompatibleDC(hdc)
' hMemBmp = CreateCompatibleBitmap(hdc, .Right - .Left, .Bottom - .Top)
' hOldBmp = SelectObject(hMemDc, hMemBmp)
' hMemDc2 = CreateCompatibleDC(hdc)
' hMemBmp2 = CreateCompatibleBitmap(hdc, .Right - .Left, .Bottom - .Top)
' hOldBmp2 = SelectObject(hMemDc2, hMemBmp2)
' Call SetRect(tMemRect, 0, 0, .Right - .Left, .Bottom - .Top)
' Call SetRect(tMemRect2, 0, 0, .Right - .Left, .Bottom - .Top)
' tFill.lbColor = Color
' hBrush = CreateBrushIndirect(tFill)
' Call FillRect(hMemDc2, tMemRect2, hBrush)
' Call BitBlt(hMemDc, 0, 0, .Right - .Left, .Bottom - .Top, hdc, .Left, .Top, SRCCOPY)
' Call TransparentBlt(hMemDc2, 0, 0, .Right - .Left, .Bottom - .Top, hMemDc, 0, 0, .Right - .Left, .Bottom - .Top, lCellColor)
' Call SelectObject(hMemDc, hOldBmp)
' tRealRect = GetRealVisibleRangeRectPix
' lLeft = Application.Min(.Left, tRealRect.Right): lTop = Application.Min(.Top, tRealRect.Bottom)
' lRight = Application.Min(.Right, tRealRect.Right): lBottom = Application.Min(.Bottom, tRealRect.Bottom)
' End With
'
' BitBlt hdc, lLeft, lTop, lRight - lLeft, lBottom - lTop, hMemDc2, 0, 0, SRCCOPY
' Call SelectObject(hMemDc2, hOldBmp2)
'
' Call ReleaseDC(0, hdc)
' Call DeleteDC(hMemDc)
' Call DeleteDC(hMemDc2)
' Call DeleteObject(hMemBmp)
' Call DeleteObject(hMemBmp2)
' Call DeleteObject(hOldBmp)
' Call DeleteObject(hOldBmp2)
' Call DeleteObject(hBrush)
'
'End Sub
2- Code in a Class Module : ( Calss name: HighlightClass)
Code:
Option Explicit
Private WithEvents Cmbrs As CommandBars
Private WithEvents Wbevents As Workbook
Public Sub Start()
Set Cmbrs = Application.CommandBars
Set Wbevents = ThisWorkbook
Call Cmbrs_OnUpdate
End Sub
Public Sub Finish()
Call ThisWorkbook.OnCellMouseMove(Nothing)
Set Cmbrs = Nothing
Set Wbevents = Nothing
End Sub
Private Sub wbevents_Activate()
Call Me.Start
End Sub
Private Sub Wbevents_Deactivate()
Call Me.Finish
End Sub
Private Sub Wbevents_SheetSelectionChange(ByVal Sh As Object, ByVal Target As Range)
Call Me.Start
End Sub
Private Sub Cmbrs_OnUpdate()
Static oPrevCell As Range
Dim oCurCell As Range
Dim X As Long, Y As Long
On Error Resume Next
Application.CommandBars.FindControl(ID:=2040).Enabled = Not Application.CommandBars.FindControl(ID:=2040).Enabled
If GetTheActiveWindow <> Application.hwnd Then
Exit Sub
End If
GetCurPos X, Y
Set oCurCell = ActiveWindow.RangeFromPoint(X, Y)
If TypeName(oCurCell) = "Range" Then
If oPrevCell.Address <> oCurCell.Address Then
Set oPrevCell = oCurCell
Call ThisWorkbook.OnCellMouseMove(oCurCell)
End If
Else
Call DeHighlightCell(oPrevCell)
End If
End Sub
3- Code in the ThisWorkbook Module:
Code:
Option Explicit
Private oHighlightInstance As HighlightClass
Public Sub StartMacro()
If oHighlightInstance Is Nothing Then
Set oHighlightInstance = New HighlightClass
oHighlightInstance.Start
End If
End Sub
Public Sub StopMacro()
If Not oHighlightInstance Is Nothing Then
oHighlightInstance.Finish
Set oHighlightInstance = Nothing
End If
End Sub
[B][COLOR=#008000]'**********************************************************
' PSEUDO-EVENT
'**********************************************************[/COLOR][/B]
Public Sub OnCellMouseMove(ByVal CellUnderMousePointer As Range)
Static oPrevCell As Range
Dim lDrawMethod As Long
Dim lFrame As Long
lDrawMethod = 1 [COLOR=#008000]' set to 2 for AlphaBlending or 0 for NoDrawing.[/COLOR]
lFrame = 1 [COLOR=#008000]' set to 0 for NoFrame.[/COLOR]
If oPrevCell Is Nothing Then Set oPrevCell = ActiveCell
If CellUnderMousePointer Is Nothing Then Call DeHighlightCell(oPrevCell): Exit Sub
[COLOR=#008000]'Apply to Sheet1 only - comment out this line to apply to all sheets.[/COLOR]
If CellUnderMousePointer.Parent.Name <> "Sheet1" Then Exit Sub
If Not CellUnderMousePointer Is Nothing Then
Call DeHighlightCell(oPrevCell)
Set oPrevCell = CellUnderMousePointer
If lDrawMethod = 1 Then
Call HighlightCellUsingDIBitsMethod(CellUnderMousePointer, vbYellow)
ElseIf lDrawMethod = 2 Then
Call HighlightCellUsingAlphaBlendMethod(CellUnderMousePointer, vbYellow)
End If
If lFrame = 1 Then
Call DrawFrame(CellUnderMousePointer, DOT, vbRed)
End If
End If
End Sub
Last edited: