Once I use visualTreeHelper.getchild to find a child object, how would I get the name of that object, or even other properties of the object like width or height?
i.e.
This doesnt work:
For i As Integer = 0 To VisualTreeHelper.GetChildrenCount(Can1) - 1
Dim ChildVisual As Visual = CType(VisualTreeHelper.GetChild(Can1, i), Visual)
Dim ChildName As DependencyProperty = childVisual.GetValue(Name)
It says value of type "Name" cannot be converted to a system.windows.dependencyProperty
Nor does this work (But at least it compiles):
For i As Integer = 0 To VisualTreeHelper.GetChildrenCount(Can1) - 1
Dim childVisual As Visual = CType(VisualTreeHelper.GetChild(Can1, i), Visual)
Dim GT1 As GeneralTransform = childVisual.TransformToAncestor(Can1)
Dim currentpoint As Point = GT1.Transform(New Point(0, 0))
x = currentpoint.X
y = currentpoint.Y
If I hover over childvisual, I can look at it's properties and see that name has been set to a name of an image I have on the canvas(Can1).
But, X and Y are always 0.
I found this finally on the net, and it seems to work great.
Dim childVisual As Visual = CType(VisualTreeHelper.GetChild(Can1, i), Visual)
Dim ChildName As String = ChildVisual.GetValue(Control.NameProperty)
Related
I have 2 strings that each contain 25 characters. E.g.
X = "0000111111110111111111110"
Y = "0000011111000000000000000"
What would be the most efficient method to identify, true or false if every position that has a "1" string Y also has a "1" in string X? In this example it should return True as there are 1s in X that match the positions of all 1s in Y.
I could read each character position and do a comparison for all 25 but was hoping some clever person would know of a more elegant way.
The easier way is to use Convert.ToInt32() to parse the string as a binary literal and perform binary AND:
Public Function MatchAsBinary(ByVal x As String, ByVal y As String) As Boolean
Dim x_int = Convert.ToInt32(x, 2)
Dim y_int = Convert.ToInt32(y, 2)
Return (x_int And y_int) = y_int
End Function
The faster (~10 times in release build) way is to compare the chars directly:
Public Function MatchAsChars(ByVal x As String, ByVal y As String) As Boolean
For i As Integer = 0 To y.Length - 1
If y(i) = "1"c AndAlso x(i) = "0"c Then
Return False
End If
Next
Return True
End Function
If you regard the strings as binary numbers, you can convert them to numbers and then use the bitwise and operator, like this:
Module Module1
Sub Main()
Dim X = "0000111111110111111111110"
Dim Y = "0000011111000000000000000"
Dim Xb = Convert.ToInt64(X, 2)
Dim Yb = Convert.ToInt64(Y, 2)
Console.WriteLine((Xb And Yb) = Yb)
Console.ReadLine()
End Sub
End Module
That will output True and work for strings of up to 64 characters.
Or, following on from your comment, you could use Convert.ToInt32 as that would give enough bits for your data.
Can do something similar #JoshD said above, but use Convert.ToInt32(Y, 2) to convert from a binary string to an integer.
Xint = Convert.ToInt32(X, 2)
Yint = Convert.ToInt32(Y, 2)
return ((Xint And Yint) = Yint)
This includes what others have shown plus a test for each bit one at a time.
Dim s As String = "0000011111000000000000000"
Dim X As String = "0000111111110111111111110"
Dim Y As String = "0000011111000000000000000"
Dim xi As Integer = Convert.ToInt32(X, 2)
Dim yi As Integer = Convert.ToInt32(Y, 2)
'check each bit
For i As Integer = 0 To 24
Dim msk As Integer = 1 << i
If (msk And xi) = msk AndAlso (msk And yi) = msk Then
Debug.WriteLine("Bit {0} on in both", i)
End If
Next
'all bits
Dim rslt As Integer = xi And yi
s = Convert.ToString(rslt, 2).PadLeft(25, "0"c)
Dim intY As Integer = CInt(Y)
Dim res As Boolean = (CInt(X) And intY) = intY
Convert them to integers, get all instances of matching 1's with a bitwise And, then compare to see if Y was changed by that comparison. If the comparison preserved the original Y, the result will be True.
I'm creating a Calc document on the fly with vb6. I need to repeat 1 row and 1 column in every page when i print it.
This is the code:
Dim mPrintOptions(2) As Object
Dim OO_Dispatcher As Object
Set OO_Dispatcher = oServiceManager.createInstance("com.sun.star.frame.DispatchHelper")
Set mPrintOptions(0) = MakePropertyValue(oServiceManager, "PrintArea", "")
Set mPrintOptions(1) = MakePropertyValue(oServiceManager, "PrintRepeatRow", "$A$2")
Set mPrintOptions(2) = MakePropertyValue(oServiceManager, "PrintRepeatCol", "$A$1")
OO_Dispatcher.executeDispatch oDeskTop, ".uno:ChangePrintArea", "", 0, mPrintOptions
I've got this code making a macro in a saved document.
Service manager and Desktop objects are previously instanced. The document is being created fine, but when I send it to the printer it does not repeat the row and the column I specified above.
I've found my solution here:
https://wiki.openoffice.org/wiki/ES/Manuales/GuiaAOO/TemasAvanzados/Macros/StarBasic/TrabajandoConCalc/Imprimiendo
My code finally got like this:
Dim OO_TitulosR As Object
Dim OO_ActiveSheet As Object
Set OO_TitulosR = OO_Document.Bridge_getStruct("com.sun.star.table.CellRangeAddress")
Set OO_ActiveSheet = OO_Document.getCurrentController.getActiveSheet
OO_TitulosR.StartColumn = 0
OO_TitulosR.EndColumn = 0
OO_TitulosR.StartRow = 1
OO_TitulosR.EndRow = 1
OO_ActiveSheet.setTitleColumns OO_TitulosR
OO_ActiveSheet.setTitleRows OO_TitulosR
so I've got this VBA code that calls DLL code. The DLL code works fine, the VBA code works fine UNTIL I go to call the DLL function from the VBA. For some reason it's not passing the 6th argument correctly. I tested by adding a 7th argument and passing the same value in the 6th and 7th arguments - the 7th passes fine, the 6th passes the same large (incorrect) value. I have no clue what is going on.
VBA:
Option Explicit
' Declare the LMM Function that's in the DLL
Declare PtrSafe Function GenCudaLMMPaths Lib "C:\Path to DLL\LMMExcel.dll" Alias "GenerateCUDALMMPaths" (xTimes#, xRates#, xVols#, xRData#, ByRef ArrLen As Long, ByRef NPaths As Long) As Long
' Generate LMM Paths on Click
Sub LMM_Click()
Dim Times#(), Rates#(), Vols#()
Dim x As Long
Dim y As Long
Dim rTimes As Range
Dim rRates As Range
Dim rVols As Range
Dim cell As Range
Dim sz As Long
sz = 15
' Resize
ReDim Times(sz), Rates(sz), Vols(sz)
' Fill in Data
Set rTimes = Sheets("Market").Range("C2:Q2")
x = 1
For Each cell In rTimes
Times(x) = cell.Value
x = x + 1
Next
Set rRates = Sheets("Market").Range("C5:Q5")
x = 1
For Each cell In rRates
Rates(x) = cell.Value
x = x + 1
Next
Set rVols = Sheets("Market").Range("C4:Q4")
x = 1
For Each cell In rVols
Vols(x) = cell.Value / 10000
x = x + 1
Next
'Call the Function
Dim np As Long
np = Sheets("LMM").Range("C2").Value
Dim useCuda As Boolean
If Sheets("LMM").Range("C3").Value = "GPU" Then
useCuda = True
Else
useCuda = False
End If
Dim rData#()
Dim rValue
ReDim rData(np * sz * (sz + 3))
rValue = GenCudaLMMPaths(Times(1), Rates(1), Vols(1), rData(1), sz, np)
If rValue = -1 Then
'No CUDA Card
MsgBox ("Your system doesn't have a CUDA Enabled GPU")
ElseIf rValue = 1 Then
'Error Occurred
MsgBox ("An error occurred while trying to generate LMM paths")
ElseIf rValue = 0 Then
'Success
' Need to reformat return data
Dim fmtData()
ReDim fmtData(np * sz, sz)
Dim i, j, k
For i = 0 To np - 1
For j = 0 To np - 1
For k = 0 To np - 1
fmtData(((i * sz) + j) + 1, k + 1) = rData(((i * sz * sz) + (j * sz) + k) + 1)
Next k
Next j
Next i
'Fill in data
Sheets("LMM").Range("A8:K" & (np * sz)) = fmtData
Else
'Too many requested paths for this CUDA card
MsgBox ("In order to prevent GPU Lock-up, you cannot request more than " & rValue & " paths.")
Sheets("LMM").Range("C2").Value = rValue
End If
End Sub
DLL Function Declaration:
int __stdcall GenerateCUDALMMPaths(double* arrTimes, double* arrRates, double* arrVols, double* retData, int& ArrLength, int& NPaths);
DEF File:
LIBRARY "CUDAFinance"
EXPORTS
CheckExcelArray = CheckExcelArray
GenerateLMMPaths = GenerateLMMPaths
GenerateCUDALMMPaths = GenerateCUDALMMPaths
Anyone have any idea here? I'm completely lost.
I just run into the same problem and got it solved as follows.
Since you already have a long variable in the six arguments function, import the NPaths together with Arrlen as an array without adding a 7th argument:
1) In VBA:
Declare a two elements array:
Dim NArrLenNPaths(1) as long
Then, assign values:
NArrLenNPaths(0) contains ArrLen and NArrLenNPaths(1) the NPaths value.
Keep the function delcaration in VBA but when calling it put NArrLenNPaths(0) as 6th argument. Do not put a 7th argument. The C++ will retreive both values as follows.
2) In C++ use a pointer instead:
Change the 6th argument to
int* NArrLenNPaths
then retreive the values by
int NArrLen = NArrLenNPaths[0];
int NPaths = NArrLenNPaths[1];
I have a combobox filled with values. I want to select a value in the combo box and click the "Add" button to place this value into the some cells below. I can add one item to my list using the following code, but I want to be able to add multiple items. I feel that I am very close, I just need a few tweaks!
Private Sub CommandButtonAddItem_Click()
Dim ws As Worksheet
Dim box As ComboBox
Dim food As String
Dim num As Integer
num = 19
Set ws = Worksheets("sheet1")
Set box = ws.OLEObjects("ComboBox1").Object
food = box.Value
Worksheets("sheet1").Cells(num, 1) = food
If Worksheets("sheet1").Cells(num, 1) = " " Then
Worksheets("sheet1").Cells(num, 1) = food
num = num + 1
End If
End Sub
Try THIS!
If the "default" cell is already occupied, it'll keep going down untill it finds one that's not empty, to then put the value in that cell.
Private Sub CommandButtonAddItem_Click()
Dim ws As Worksheet
Dim box As ComboBox
Dim food As String
Dim num As Integer
num = 19
Set ws = Worksheets("sheet1")
Set box = ws.OLEObjects("ComboBox1").Object
food = box.Value
While Worksheets("sheet1").Cells(num, 1) <> ""
num = num + 1
Wend
Worksheets("sheet1").Cells(num, 1) = food
End If
End Sub
I have a "container" containing data. The size is +- 100MB.
In the container there a several "dataids's" that mark the begin of something.
Now I need to get an index for an given dataid. (dataid for example: '4CFE7197-0029-006B-1AD4-000000000012')
I have tried several approaches. But at this moment "ReadAllBytes" is the most performant.
ReadAll -> average of 0.6 seconds
Using oReader As New BinaryReader(File.Open(sContainerPath, FileMode.Open, FileAccess.Read))
Dim iLength As Integer = CInt(oReader.BaseStream.Length)
Dim oValue As Byte() = Nothing
oValue = oReader.ReadBytes(iLength)
Dim enc As New System.Text.ASCIIEncoding
Dim sFileContent As String = enc.GetString(oValue)
Dim r As Regex = New Regex(sDataId)
Dim lPosArcID As Integer = r.Match(sFileContent).Index
If lPosArcID > 0 Then
Return lPosArcID
End If
End Using
ReadByteByByte -> average of 1.4 seconds
Using oReader As BinaryReader = New BinaryReader(File.Open(sContainerPath, FileMode.Open, FileAccess.Read))
Dim valueSearch As StringSearch = New StringSearch(sDataId)
Dim readByte As Byte
While (InlineAssignHelper(readByte, oReader.ReadByte()) >= 0)
index += 1
If valueSearch.Found(readByte) Then
Return index - iDataIdLength
End If
End While
End Using
Public Class StringSearch
Private ReadOnly oValue() As Byte
Private iValueIndex As Integer = -1
Public Sub New(value As String)
Dim oEncoding As New System.Text.ASCIIEncoding
Me.oValue = oEncoding.GetBytes(value)
End Sub
Public Function Found(oNextByte As Byte) As Boolean
If oValue(iValueIndex + 1) = oNextByte Then
iValueIndex += 1
If iValueIndex + 1 = oValue.Count Then Return True
Else
iValueIndex = -1
End If
Return False
End Function
End Class
Public Function InlineAssignHelper(Of T)(ByRef target As T, ByVal value As T) As T
target = value
Return value
End Function
I find it hard to believe that there is no faster way.
0.6 seconds for a 100MB file is not an acceptable time.
An other approach that I tried, is to split in chuncks of X bytes (100, 1000, ..). But was alot slower.
Any help on an approach I can try?