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To call Windows ChooseFont dialog from code, we can use the ChooseFont
API function.
Private Const GMEM_MOVEABLE = &H2
Private Const GMEM_ZEROINIT = &H40
Private Const GHND = (GMEM_MOVEABLE Or GMEM_ZEROINIT)
Private Const LF_FACESIZE = 32
Private Const FW_BOLD = 700
Private Const CF_APPLY = &H200&
Private Const CF_ANSIONLY = &H400&
Private Const CF_TTONLY = &H40000
Private Const CF_EFFECTS = &H100&
Private Const CF_ENABLETEMPLATE = &H10&
Private Const CF_ENABLETEMPLATEHANDLE = &H20&
Private Const CF_FIXEDPITCHONLY = &H4000&
Private Const CF_FORCEFONTEXIST = &H10000
Private Const CF_INITTOLOGFONTSTRUCT = &H40&
Private Const CF_LIMITSIZE = &H2000&
Private Const CF_NOFACESEL = &H80000
Private Const CF_NOSCRIPTSEL = &H800000
Private Const CF_NOSTYLESEL = &H100000
Private Const CF_NOSIZESEL = &H200000
Private Const CF_NOSIMULATIONS = &H1000&
Private Const CF_NOVECTORFONTS = &H800&
Private Const CF_NOVERTFONTS = &H1000000
Private Const CF_OEMTEXT = 7
Private Const CF_PRINTERFONTS = &H2
Private Const CF_SCALABLEONLY = &H20000
Private Const CF_SCREENFONTS = &H1
Private Const CF_SCRIPTSONLY = CF_ANSIONLY
Private Const CF_SELECTSCRIPT = &H400000
Private Const CF_SHOWHELP = &H4&
Private Const CF_USESTYLE = &H80&
Private Const CF_WYSIWYG = &H8000
Private Const CF_BOTH = (CF_SCREENFONTS Or CF_PRINTERFONTS)
Private Const CF_NOOEMFONTS = CF_NOVECTORFONTS
Public Const LOGPIXELSY = 90
Public Type FormFontInfo
Name As String
Weight As Integer
Height As Integer
UnderLine As Boolean
Italic As Boolean
Color As Long
End Type
Private Type LOGFONT
lfHeight As Long
lfWidth As Long
lfEscapement As Long
lfOrientation As Long
lfWeight As Long
lfItalic As Byte
lfUnderline As Byte
lfStrikeOut As Byte
lfCharSet As Byte
lfOutPrecision As Byte
lfClipPrecision As Byte
lfQuality As Byte
lfPitchAndFamily As Byte
lfFaceName(LF_FACESIZE) As Byte
End Type
Private Type FONTSTRUC
lStructSize As Long
hwnd As Long
hdc As Long
lpLogFont As Long
iPointSize As Long
Flags As Long
rgbColors As Long
lCustData As Long
lpfnHook As Long
lpTemplateName As String
hInstance As Long
lpszStyle As String
nFontType As Integer
MISSING_ALIGNMENT As Integer
nSizeMin As Long
nSizeMax As Long
End Type
Private Declare Function ChooseFont Lib "comdlg32.dll" Alias "ChooseFontA" _
(pChoosefont As FONTSTRUC) As Long
Private Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long
Private Declare Function GlobalAlloc Lib "kernel32" _
(ByVal wFlags As Long, ByVal dwBytes As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" _
(hpvDest As Any, hpvSource As Any, ByVal cbCopy As Long)
Private Declare Function GetDeviceCaps Lib "gdi32" _
(ByVal hdc As Long, ByVal nIndex As Long) As Long
Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long
Private Function MulDiv(In1 As Long, In2 As Long, In3 As Long) As Long
Dim lngTemp As Long
On Error GoTo MulDiv_err
If In3 <> 0 Then
lngTemp = In1 * In2
lngTemp = lngTemp / In3
Else
lngTemp = -1
End If
MulDiv_end:
MulDiv = lngTemp
Exit Function
MulDiv_err:
lngTemp = -1
Resume MulDiv_err
End Function
Private Function ByteToString(aBytes() As Byte) As String
Dim dwBytePoint As Long, dwByteVal As Long, szOut As String
dwBytePoint = LBound(aBytes)
While dwBytePoint <= UBound(aBytes)
dwByteVal = aBytes(dwBytePoint)
If dwByteVal = 0 Then
ByteToString = szOut
Exit Function
Else
szOut = szOut & Chr$(dwByteVal)
End If
dwBytePoint = dwBytePoint + 1
Wend
ByteToString = szOut
End Function
Private Sub StringToByte(InString As String, ByteArray() As Byte)
Dim intLbound As Integer
Dim intUbound As Integer
Dim intLen As Integer
Dim intX As Integer
intLbound = LBound(ByteArray)
intUbound = UBound(ByteArray)
intLen = Len(InString)
If intLen > intUbound - intLbound Then intLen = intUbound - intLbound
For intX = 1 To intLen
ByteArray(intX - 1 + intLbound) = Asc(Mid(InString, intX, 1))
Next
End Sub
Public Function DialogFont(ByRef f As FormFontInfo) As Boolean
Dim LF As LOGFONT, FS As FONTSTRUC
Dim lLogFontAddress As Long, lMemHandle As Long
LF.lfWeight = f.Weight
LF.lfItalic = f.Italic * -1
LF.lfUnderline = f.UnderLine * -1
LF.lfHeight = -MulDiv(CLng(f.Height), GetDeviceCaps(GetDC(hWndAccessApp), LOGPIXELSY), 72)
Call StringToByte(f.Name, LF.lfFaceName())
FS.rgbColors = f.Color
FS.lStructSize = Len(FS)
lMemHandle = GlobalAlloc(GHND, Len(LF))
If lMemHandle = 0 Then
DialogFont = False
Exit Function
End If
lLogFontAddress = GlobalLock(lMemHandle)
If lLogFontAddress = 0 Then
DialogFont = False
Exit Function
End If
CopyMemory ByVal lLogFontAddress, LF, Len(LF)
FS.lpLogFont = lLogFontAddress
FS.Flags = CF_SCREENFONTS Or CF_EFFECTS Or CF_INITTOLOGFONTSTRUCT
If ChooseFont(FS) = 1 Then
CopyMemory LF, ByVal lLogFontAddress, Len(LF)
f.Weight = LF.lfWeight
f.Italic = CBool(LF.lfItalic)
f.UnderLine = CBool(LF.lfUnderline)
f.Name = ByteToString(LF.lfFaceName())
f.Height = CLng(FS.iPointSize / 10)
f.Color = FS.rgbColors
DialogFont = True
Else
DialogFont = False
End If
End Function
Function test_DialogFont(ctl As Control) As Boolean
Dim f As FormFontInfo
With f
.Color = 0
.Height = 12
.Weight = 700
.Italic = False
.UnderLine = False
.Name = "Arial"
End With
Call DialogFont(f)
With f
Debug.Print "Font Name: "; .Name
Debug.Print "Font Size: "; .Height
Debug.Print "Font Weight: "; .Weight
Debug.Print "Font Italics: "; .Italic
Debug.Print "Font Underline: "; .UnderLine
Debug.Print "Font COlor: "; .Color
ctl.FontName = .Name
ctl.FontSize = .Height
ctl.FontWeight = .Weight
ctl.FontItalic = .Italic
ctl.FontUnderline = .UnderLine
ctl = .Name & " - Size:" & .Height
End With
test_DialogFont = True
End Function
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