LEADTOOLS Upgrade from VBX to ActiveX
When upgrading from the LEADTOOLS VBX to the LEADTOOLS ActiveX, some properties are the same and require no changes. For other properties, either their usage has changed, or they have been replaced by other properties or methods.
This topic describes how to change your code when upgrading from an existing VBX application. Upgrading requires the following steps:
1. Replace the controls.
2. Ensure that LVB_ constants are not defined or hard-coded.
3. Replace changed LVB_ constants.
4. Remove the LVB_ prefix from remaining constants.
5. Make the simple property-to-method changes.
6. Make the rest of the changes.
7. Note the properties that have not changed.
The remainder of this topic describes the steps in detail. (Everything is in one topic so that you can easily print it or copy it to your text editor.)
1. Replace all LEAD VBX controls.
For each control, make notes on any important design-time properties, delete the VBX control, and replace it with an ActiveX control. Then, update the Name property and any other important design-time properties (such as data properties) so that they match the former VBX control.
Ensure that the ScaleMode property is initialized to be the same as the parent form, which was the default for the VBX control.
2. Ensure that LVB_ constants are not defined or hard-coded.
The values of constants have changed; so they should not be defined or hard-coded in your program. In Visual Basic, the definitions no longer need to be included. For other development systems, refer to the ActiveX tutorial to see files that must be included.
There are three exceptions: LVB_KEY_DOCUMENT, LVB_KEY_GIFLZW, and LVB_KEY_TIFLZW. Definitions of these constants should remain in your application if you have implemented GIF, TIFF LZW, or LEADTOOLS Document/Medical capabilities. (You will change the names of the constants in the next step.)
In Visual Basic, you can search for "Global Const LVB_" to find and delete the other definitions.
3. Replace changed LVB_ constants.
You can change most VBX constants to ActiveX constants by removing the LVB_ prefix. However, the following constants have changed more than that, and you must replace them individually:
VBX Constant |
ActiveX Constant |
LVB_BITONAL_FAVORBLACK |
BITONALSCALING_FAVORBLACK |
LVB_BITONAL_NORMAL |
BITONALSCALING_NORMAL |
LVB_BITONAL_SCALETOGRAY |
BITONALSCALING_SCALETOGRAY |
LVB_DILATION_DIAG |
BFLT_DILATION_DIAG |
LVB_DILATION_HORZ |
BFLT_DILATION_HORZ |
LVB_DILATION_OMNI |
BFLT_DILATION_OMNI |
LVB_DILATION_VERT |
BFLT_DILATION_VERT |
LVB_DITHER_BURKES |
CRD_BURKESDITHERING |
LVB_DITHER_FLOYD |
CRD_FLOYDSTEINDITHERING |
LVB_DITHER_JARVIS |
CRD_JARVISDITHERING |
LVB_DITHER_LAST |
CRD_ORDEREDDITHERING |
LVB_DITHER_NONE |
CRD_NODITHERING |
LVB_DITHER_ORDERED |
CRD_ORDEREDDITHERING |
LVB_DITHER_SIERRA |
CRD_SIERRADITHERING |
LVB_DITHER_STEVENSON |
CRD_STEVENSONARCEDITHERING |
LVB_DITHER_STUCKI |
CRD_STUCKIDITHERING |
LVB_EROSION_DIAG |
BFLT_EROSION_DIAG |
LVB_EROSION_HORZ |
BFLT_EROSION_HORZ |
LVB_EROSION_OMNI |
BFLT_EROSION_OMNI |
LVB_EROSION_VERT |
BFLT_EROSION_VERT |
LVB_FILE_READONLY |
Specific file type, such as FILE_PCD |
LVB_GRADIENT_E |
FLT_GRADIENT_E |
LVB_GRADIENT_N |
FLT_GRADIENT_N |
LVB_GRADIENT_NE |
FLT_GRADIENT_NE |
LVB_GRADIENT_NW |
FLT_GRADIENT_NW |
LVB_GRADIENT_S |
FLT_GRADIENT_S |
LVB_GRADIENT_SE |
FLT_GRADIENT_SE |
LVB_GRADIENT_SW |
FLT_GRADIENT_SW |
LVB_GRADIENT_W |
FLT_GRADIENT_W |
LVB_HT_PRINT |
HALFTONE_PRINT |
LVB_HT_VIEW |
HALFTONE_VIEW |
LVB_KEY_DOCUMENT |
L_KEY_DOCUMENT |
LVB_KEY_GIFLZW |
L_KEY_GIFLZW |
LVB_KEY_TIFLZW |
L_KEY_TIFLZW |
LVB_LAPLACE_1 |
FLT_LAPLACE_1 |
LVB_LAPLACE_2 |
FLT_LAPLACE_2 |
LVB_LAPLACE_3 |
FLT_LAPLACE_3 |
LVB_LAPLACE_DIAG |
FLT_LAPLACE_DIAG |
LVB_LAPLACE_HORZ |
FLT_LAPLACE_HORZ |
LVB_LAPLACE_VERT |
FLT_LAPLACE_VERT |
LVB_LINESEG_HORZ |
FLT_LINESEG_HORZ |
LVB_LINESEG_LTOR |
FLT_LINESEG_LTOR |
LVB_LINESEG_RTOL |
FLT_LINESEG_RTOL |
LVB_LINESEG_VERT |
FLT_LINESEG_VERT |
LVB_ORDER_BGR |
CRP_BYTEORDERBGR |
LVB_ORDER_RGB |
CRP_BYTEORDERRGB |
LVB_PALETTE_FIXED |
CRP_FIXEDPALETTE |
LVB_PALETTE_IDENTITY |
CRP_IDENTITYPALETTE |
LVB_PALETTE_OPTIMIZED |
CRP_OPTIMIZEDPALETTE |
LVB_PALETTE_USER |
CRP_USERPALETTE |
LVB_PREWITT_HORZ |
FLT_PREWITT_HORZ |
LVB_PREWITT_VERT |
FLT_PREWITT_VERT |
LVB_PROPSET_EXP |
No equivalent. Refer to the IsSupportLocked method. |
LVB_PROPSET_PRO |
No equivalent. Refer to the IsSupportLocked method. |
LVB_RESIZE_INTERPOLATE |
RESIZE_RESAMPLE |
LVB_SHIFTDIFF_DIAG |
FLT_SHIFTDIFF_DIAG |
LVB_SHIFTDIFF_HORZ |
FLT_SHIFTDIFF_HORZ |
LVB_SHIFTDIFF_VERT |
FLT_SHIFTDIFF_VERT |
LVB_SOBEL_HORZ |
FLT_SOBEL_HORZ |
LVB_SOBEL_VERT |
FLT_SOBEL_VERT |
LVB_SUPPORT_DOCUMENT |
L_SUPPORT_DOCUMENT |
LVB_SUPPORT_GIFLZW |
L_SUPPORT_GIFLZW |
LVB_SUPPORT_TIFLZW |
L_SUPPORT_TIFLZW |
LVB_UNDERLAYTYPE_STRETCH |
UNDERLAY_STRETCH |
LVB_UNDERLAYTYPE_TILE |
UNDERLAY_TILE |
4. Remove the LVB_ prefix from remaining constants.
After you have made the changes described above, you can change the remaining VBX constants to ActiveX constants by removing the LVB_ prefix.
5. Make the simple property-to-method changes.
Many of the VBX action properties have equivalent ActiveX methods where the only difference is that you pass a parameter instead of setting a value.
In one category, after you have updated the constants, you can simply remove the equals (=) sign as shown in the following example:
VBX code: LeadControl.ColorSeparate = FormatConstant
ActiveX code: LeadControl.ColorSeparate FormatConstant
The following is a list of the ActiveX methods that you can code in this fashion:
In another category, the VBX property is set to True, but the ActiveX method is called with no parameters as shown in the following example:
VBX code: LeadControl.Grayscale = True
ActiveX code: LeadControl.Grayscale
The following is a list of the ActiveX methods that you can code in this fashion:
6. Make the rest of the changes.
The following are specific changes that you must make in your remaining code.
Note: some of the VBX properties are changed only when you are using them to take an action, and that the same properties are still valid in read-only situations.
VBX code: |
LeadControl.AddNoiseChannel = ChannelConstant |
|
LeadControl.AddNoise = NoiseAmount |
ActiveX code: |
LeadControl.AddNoise NoiseAmount, ChannelConstant |
VBX code: |
LeadControl.BitChgOrder = ColorOrderConstant |
|
LeadControl.BitChgPalette = PaletteConstant |
|
LeadControl.BitChgDither = DitherConstant |
|
LeadControl.BitmapBits = DesiredBPP |
ActiveX code: |
LeadControl.ColorRes DesiredBPP, PaletteConstant, DitherConstant, 0 |
|
or LeadControl.ColorRes DesiredBPP, ColorOrderConstant, DitherConstant, 0 |
VBX code: |
LeadControl.BitChgUserPal(index) = ColorValue |
ActiveX code: |
LeadControl.UserPalette(index) = ColorValue |
VBX code: |
LeadControl.BitmapDC = True |
|
ReturnValue = GDIFunction(LeadControl.BitmapDC, OtherParameters...) |
|
LeadControl.BitmapDC = False |
ActiveX code: |
LeadDC = LeadControl.GetBitmapDC |
|
ReturnValue = GDIFunction(LeadDC, OtherParameters...) |
|
LeadControl.ReleaseBitmapDC |
VBX code: |
PixelHeight = LeadControl.BitmapHeight |
|
PixelWidth = LeadControl.BitmapWidth |
ActiveX code: |
LeadControl.ScaleMode = 3 |
|
PixelHeight = LeadControl.BitmapHeight |
|
PixelWidth = LeadControl.BitmapWidth |
VBX code: |
LeadControl.BitmapOrder |
ActiveX code: |
No equivalent. Use the ColorRes method. |
VBX code: |
TwipsHeight = LeadControl.BitmapScaleHeight |
|
TwipsWidth = LeadControl.BitmapScaleWidth |
ActiveX code: |
LeadControl.ScaleMode = Form.ScaleMode |
|
TwipsHeight = LeadControl.BitmapHeight |
|
TwipsWidth = LeadControl.BitmapWidth |
VBX code: |
LeadControl.CaptureTop = TopPixel |
|
LeadControl.CaptureLeft = LeftPixel |
|
LeadControl.CaptureWidth = PixelWidth |
|
LeadControl.CaptureHeight = PixelHeight |
|
LeadControl.Capture = hDC |
ActiveX code: |
LeadControl.ScaleMode = 3 |
|
LeadControl.Capture hDC, LeftPixel, TopPixel, PixelWidth, PixelHeight |
VBX code: |
LeadControl.ClientDC = True |
|
ReturnValue = GDIFunction(LeadControl.ClientDC, OtherParameters...) |
|
LeadControl.ClientDC = False |
ActiveX code: |
LeadDC = LeadControl.GetClientDC |
|
ReturnValue = GDIFunction(LeadDC, OtherParameters...) |
|
LeadControl.ReleaseClientDC |
VBX code: |
LeadControl1.CombineSrcLeft = SourceLeft |
|
LeadControl1.CombineSrcTop = SourceTop |
|
LeadControl1.CombineDstLeft = TargetLeft |
|
LeadControl1.CombineDstTop = TargetTop |
|
LeadControl1.CombineWidth = Width |
|
LeadControl1.CombineHeight = Height |
|
LeadControl1.CombineOp = Operation |
|
LeadControl1.Combine = LeadControl2.Bitmap |
ActiveX code: |
LeadControl1.Combine TargetLeft, TargetTop, Width, Height, LeadControl2.Bitmap, SourceLeft, SourceTop, Operation |
VBX code: |
LeadControl.Copy = True |
ActiveX code: |
LeadControl.Copy COPY_EMPTY + COPY_DIB |
VBX code: |
LeadControl.CreateBits = DesiredBPP |
|
LeadControl.CreateWidth = BitmapWidth |
|
LeadControl.CreateHeight = BitmapHeight |
|
LeadControl.CreateBitmap = True |
ActiveX code: |
LeadControl.CreateBitmap BitmapWidth, BitmapHeight, DesiredBPP |
VBX code: |
LeadControl.CreatePicture = True |
|
VBPicture = LeadControl.Picture |
ActiveX code: |
VBPicture = LeadControl.GetPicture |
VBX code: |
LeadControl.CropLeft = LeftValue |
|
LeadControl.CropTop = TopValue |
|
LeadControl.CropWidth = WidthValue |
|
LeadControl.CLeadControl.Crop = TrueropHeight = HeightValue |
|
|
ActiveX code: |
LeadControl.SetDstClipRect LeftValue, TopValue, WidthValue, HeightValue |
VBX code: |
MyDDB = LeadControl.DDB |
ActiveX code: |
LeadControl.GetDDB MyDDB |
VBX code: |
LeadControl.DDB = MyDDB |
ActiveX code: |
MyDC = LeadControl.GetClientDC |
|
MyPalette = LeadControl.GetPalette(MyDC) |
|
LeadControl.SetDDB MyDC, MyDDB, MyPalette |
VBX code: |
MyDIB = LeadControl.DIB |
ActiveX code: |
LeadControl.GetDIB MyDIB |
VBX code: |
LeadControl.DIB = MyDIB |
ActiveX code: |
LeadControl.SetDIB MyDIB |
VBX code: |
LeadControl.Effect = EffectConstant |
ActiveX code: |
LeadControl.PaintEffect = EffectConstant |
VBX code: |
LeadControl.EnableStatus = BooleanValue |
ActiveX code: |
LeadControl.EnableProgressEvent = BooleanValue |
VBX code: |
LeadControl.EnableTwainMulti = True |
|
LeadControl.TwainAcquire = True |
ActiveX code: |
LeadControl.EnableTwainEvent = True |
|
LeadControl.TwainAcquire hWnd |
VBX code: |
LeadControl.File = PathName |
ActiveX code: |
LeadControl.Load PathName, 0, 0, 1 |
VBX code: |
LeadControl.FilePage = PageNumber |
|
LeadControl.File = PathName |
ActiveX code: |
LeadControl.Load PathName, 0, PageNumber, 1 |
VBX code: |
LeadControl.LoadStamp = True |
|
LeadControl.File = PathName |
ActiveX code: |
LeadControl.LoadStamp PathName |
VBX code: |
LeadControl.FltDilation = DilationConstant |
ActiveX code: |
LeadControl.BinaryFilter DilationConstant |
VBX code: |
LeadControl.FltEmbossDepth = ShadowDepth |
|
LeadControl.FltEmboss = EmbossConstant |
ActiveX code: |
LeadControl.Emboss EmbossConstant, ShadowDepth |
VBX code: |
LeadControl.FltErosion = ErosionConstant |
ActiveX code: |
LeadControl.BinaryFilter ErosionConstant |
VBX code: |
LeadControl.FltGradient = GradientConstant |
ActiveX code: |
LeadControl.SpatialFilter GradientConstant |
VBX code: |
LeadControl.FltLaplace = LaplacianConstant |
ActiveX code: |
LeadControl.SpatialFilter LaplacianConstant |
VBX code: |
LeadControl.FltLineSeg = LineSegmentConstant |
ActiveX code: |
LeadControl.SpatialFilter LineSegmentConstant |
VBX code: |
LeadControl.FltPrewitt = PrewittConstant |
ActiveX code: |
LeadControl.SpatialFilter PrewittConstant |
VBX code: |
LeadControl.FltShiftDiff = ShiftDiffConstant |
ActiveX code: |
LeadControl.SpatialFilter ShiftDiffConstant |
VBX code: |
LeadControl.FltSobel = SobelConstant |
ActiveX code: |
LeadControl.SpatialFilter SobelConstant |
VBX code: |
LeadControl.HalftoneAngle = HundredthsOfDegrees |
|
LeadControl.Halftone = TypeConstant |
ActiveX code: |
LeadControl.Halftone TypeConstant, HundredthsOfDegrees |
VBX code: |
ReturnValue = GDIFunction(LeadControl.hDC, OtherParameters...) |
ActiveX code: |
LeadDC = LeadControl.GetClientDC |
|
ReturnValue = GDIFunction(LeadDC, OtherParameters...) |
|
LeadControl.ReleaseClientDC |
VBX code: |
LeadControl.HistoEq = True |
ActiveX code: |
LeadControl.HistoEqualize |
VBX code: |
LeadControl.HistogramChannel = ChannelConstant |
|
LeadControl.HistogramAcquire = True |
|
IntensityValue = LeadControl.Histogram(Index) |
ActiveX code: |
LeadControl.GetHistogram ChannelConstant |
|
IntensityValue = LeadControl.HistogramTable(Index) |
VBX code: |
LeadControl.ImageHeight |
ActiveX code: |
LeadControl.DstHeight |
VBX code: |
LeadControl.ImageLeft |
ActiveX code: |
LeadControl.DstLeft |
VBX code: |
LeadControl.ImageTop |
ActiveX code: |
LeadControl.DstTop |
VBX code: |
LeadControl.ImageWidth |
ActiveX code: |
LeadControl.DstWidth |
VBX code: |
PixelHeight = LeadControl.InfoHeight |
|
PixelWidth = LeadControl.InfoWidth |
ActiveX code: |
LeadControl.ScaleMode = 3 |
|
PixelHeight = LeadControl.InfoHeight |
|
PixelWidth = LeadControl.InfoWidth |
VBX code: |
LeadControl.InfoPage = PageNumber |
|
LeadControl.InfoFile = PathName |
ActiveX code: |
LeadControl.GetFileInfo PathName, PageNumber |
VBX code: |
FilePath = LeadControl.InfoFile |
ActiveX code: |
No equivalent. You must maintain your own variable if you want to keep the path that was used to load the image. |
VBX code: |
BitmapHeight = LeadControl.InfoScaleHeight |
|
BitmapWidth = LeadControl.InfoScaleWidth |
ActiveX code: |
LeadControl.ScaleMode = Form1.ScaleMode |
|
BitmapHeight = LeadControl.InfoHeight |
|
BitmapWidth = LeadControl.InfoWidth |
VBX code: |
LeadControl.IntensityDetectLow = LowValue |
|
LeadControl.IntensityDetectHigh = HighValue |
|
LeadControl.IntensityDetect = True |
ActiveX code: |
LeadControl.IntensityDetect LowValue, HighValue |
VBX DDE properties are not supported by ActiveX. Affected VBX properties are LinkItem, LinkMode, LinkTimeout, and LinkTopic.
VBX code: |
If LeadControl.Paste = True Then |
|
LeadControl.Paste = True |
|
Else |
|
MsgBox "No image on the clipboard" |
|
End If |
ActiveX code: |
If LeadControl.Paste(PASTE_ISREADY) = 0 Then |
|
MsgBox ("Invalid data on the clipboard") |
|
Else |
|
LeadControl.Paste 0 |
|
End If |
VBX code: |
LeadControl.PaintBwAsGray = BooleanValue |
ActiveX code: |
LeadControl.BitonalScaling = ScalingConstant |
VBX code: |
LeadControl.PCDResolution = DesiredResolution |
|
LeadControl.File = PathName |
ActiveX code: |
LeadControl.PCDRes = DesiredResolution |
|
LeadControl.Load PathName, 0, 0, 1 |
VBX code: |
LeadControl.Picture = VBPicture |
ActiveX code: |
LeadControl.SetPicture VBPicture |
VBX code: |
LeadControl.PictureCreate = True |
|
VBPicture = LeadControl.Picture |
ActiveX code: |
VBPicture =LeadControl.GetPicture |
The VBX properties for cropping the print rectangle have no direct equivalents in ActiveX. The closest match is the SetSrcClipRect method, which requires different logic. Affected VBX properties are PrintCropTop, PrintCropLeft, PrintCropWidth, PrintCropHeight, and PrintCrop.
VBX code: |
LeadControl.PrintLeft = LeftPixel |
|
LeadControl.PrintTop = TopPixel |
|
LeadControl.PrintWidth = PixelWidth |
|
LeadControl.PrintHeight = PixelHeight |
|
LeadControl.PrintBitmap = Printer.hDC |
ActiveX code: |
LeadControl.Render Printer.hDC, LeftPixel, TopPixel, PixelWidth, PixelHeight |
VBX code: |
If LeadControl.PropertySet = LVB_PROPSET_EXP Then Do Something |
ActiveX code: |
If LeadControl.IsSupportLocked (L_SUPPORT_DOCUMENT) = False Then Do Something |
VBX code: |
LeadControl.Repaint = True |
ActiveX code: |
LeadControl.ForceRepaint |
VBX code: |
LeadControl.RemapChannel = ChannelConstant |
|
LeadControl.RemapIntensity = True |
ActiveX code: |
LeadControl.RemapIntensity ChannelConstant |
VBX code: |
LeadControl.ResizeType = TypeConstant |
|
LeadControl.ResizeWidth = PixelWidth |
|
LeadControl.ResizeHeight = PixelHeight |
|
LeadControl.Resize = True |
ActiveX code: |
LeadControl.ScaleMode = 3 |
|
LeadControl.Size PixelWidth, PixelHeight, TypeConstant |
VBX code: |
LeadControl.Rotate = Degrees |
ActiveX code: |
LeadControl.Rotate Degrees * 100, True, RGB(0, 0, 0) |
VBX code: |
LeadControl.BackColor = RGBValue |
|
LeadControl.RotateFine = HundredthsOfDegrees |
ActiveX code: |
LeadControl.Rotate HundredthsOfDegrees, True, RGBValue |
VBX code: |
LeadControl.SaveBits = BPPInDatabase |
|
LeadControl.SaveFormat = FormatInDatabase |
|
LeadControl.SaveQFactor = QFactorInDatabase |
ActiveX code: |
LeadControl.DataSaveBits = BPPInDatabase |
|
LeadControl.DataSaveFormat = FormatInDatabase |
|
LeadControl.DataSaveQuality = QFactorInDatabase |
VBX code: |
LeadControl.SaveMulti = False |
|
LeadControl.SaveBits = DesiredBPP |
|
LeadControl.SaveFormat = DesiredFormat |
|
LeadControl.SaveQFactor = DesiredQFactor |
|
LeadControl.SaveFile = PathName |
ActiveX code: |
LeadControl.Save PathName, DesiredFormat, DesiredBPP, DesiredQFactor, False |
VBX code: |
LeadControl.SaveMulti = True |
|
LeadControl.SaveFile = PathName |
ActiveX code: |
LeadControl.Save PathName, DesiredFormat, DesiredBPP, 0, True |
VBX code: |
LeadControl.SaveStampBits = StampBPP |
|
LeadControl.SaveStampWidth = StampWidth |
|
LeadControl.SaveStampHeight = StampHeight |
|
LeadControl.SaveStamp = True |
|
LeadControl.SaveBits = DesiredBPP |
|
LeadControl.SaveFormat = DesiredFormat |
|
LeadControl.SaveQFactor = DesiredQFactor |
|
LeadControl.SaveFile = PathName |
ActiveX code: |
LeadControl.SaveWithStamp PathName, DesiredFormat, DesiredBPP, DesiredQFactor, StampWidth, StampHeight, StampBPP |
VBX code: |
LeadControl.Sharpness = ChangeAmount |
ActiveX code: |
LeadControl.Sharpen ChangeAmount |
VBX code: |
LeadControl.BackColor = RGBValue |
|
LeadControl.ShearX = HundredthsOfDegrees |
ActiveX code: |
LeadControl.Shear HundredthsOfDegrees, True, RGBValue |
VBX code: |
LeadControl.BackColor = RGBValue |
|
LeadControl.ShearY = HundredthsOfDegrees |
ActiveX code: |
LeadControl.Shear HundredthsOfDegrees, False, RGBValue |
VBX code: |
Status event |
ActiveX code: |
ProgressStatus event |
VBX code: |
LeadControl.SupportType = SupportConstant |
|
If LeadControl.IsSupportLocked = False Then |
|
Do something |
|
End If |
ActiveX code: |
If LeadControl.IsSupportLocked(SupportConstant) Then |
|
Do something |
|
End If |
VBX code: |
LeadControl.SupportType = SupportConstant |
|
LeadControl.UnlockSupport = Password |
ActiveX code: |
If LeadControl.UnlockSupport SupportConstant, Password |
VBX code: |
LeadControl.TrimLeft = LeftPixel |
|
LeadControl.TrimTop = TopPixel |
|
LeadControl.TrimWidth = PixelWidth |
|
LeadControl.TrimHeight = PixelHeight |
|
LeadControl.Trim = True |
ActiveX code: |
LeadControl.ScaleMode = 3 |
|
LeadControl.Trim LeftPixel, TopPixel, PixelWidth, PixelHeight |
VBX code: |
TwainImage event |
ActiveX code: |
TwainPage event |
VBX code: |
LeadControl.TwainSelect = True |
|
LeadControl.TwainAcquire = True |
ActiveX code: |
LeadControl.TwainSelect hWnd |
|
LeadControl.TwainAcquire hWnd |
VBX code: |
LeadControl1.UnderlayType = TypeFlag |
|
LeadControl1.Underlay = LeadControl2.Bitmap |
ActiveX code: |
LeadControl1.Underlay LeadControl2.Bitmap, TypeFlag |
7. Note the properties that have not changed.
The following properties are used in the ActiveX the same way as they were used in the VBX:
AutoRepaint, AutoScroll, BackErase, Bitmap, BitmapPalette, BitmapXRes, BitmapYRes, BitonalScaling, BorderStyle, ColorPlanes, DataChanged, DataField, DataSource, Enabled, hDC, InfoBits, InfoCompress, InfoFormat, InfoPCDResolution, InfoSizeDisk, InfoSizeMem, MousePointer, PaintDither, PaintPalette, PaintRop3, PaintWhileLoad, RemapTable, TwainFlags.
The following properties are provided by the development system and are not documented for the LEADTOOLS ActiveX. All of them, except the Parent property, are available when the ActiveX is used in Visual Basic.
Align, DragIcon, DragMode, HelpContextID, hWnd, Index, Height, Left, Name, Parent, TabIndex, TabStop, Tag, Top, Visible, Width