XY=(var1),(var2) does not read var, only numeric values seems read

The issue here is that you need to assemble the command string (sCmd) out of your variables.
That is what

sCMD = "xy=" & CStr(x) & "," & CStr(y) does.

"xy=" and "," are text. Cstr(x) and CStr(y) convert the double values to strings for use in the command, and & is the symbol to concatenate the entire line into a single string. That string is then used to the keyin sent to MicroStation.

You have example code right in front of you, but you have strayed significantly from it. Rewrite your code to follow the steps as shown in the example. Learn what each step does. Once you understand how the code works, you can adjust it if you like, but if you don't understand what your example is doing, your success at rewriting it is going to be nil.

Dim Point_X0 as Double
Dim Point_Y0 as Double

' define coordinates
Point_X0 = 1234
Point_Y0 = 5678

'create command string
Dim sCmd as String
sCmd = "xy=" & CStr(Point_X0) & "," CStr(Point_Y0)

'Start the Place Line command
CadInputQueue.SendKyin "place line"

'place the first data point at zero
CadInputQueue.SendDataPoint Point3DZero

' send the previously defined command string
CadInputQueue.SendKeyin sCmd

'reset to end the line
CadInputQueue.SendReset

There are other things amiss in your code. I have no idea what "L" is or where that is defined, so that's an obvious problem as well.

Many thanks Jan, 

sorry for the lack of info. 

It is fixed now. Bentley Support, Arthur Goldsweer helped me out. 

2023-06-23 01:29:46 PDT - Artur Goldsweer ^{Additional comments}

Hello Nicolas,

from your problem description it is not clear what the problem in detail is.
In general there are no issue with using variables with keyin commands.

I just mad a quick test with VBA and using x,y values as double and this example works fine:

Sub xytest()
Dim x As Double
Dim y As Double
    x = 2.12345
    y = 3.23456
    
    Dim sCmd As String
    sCmd = "xy=" & CStr(x) & "," & CStr(y)
    
    CadInputQueue.SendKeyin "place line"
    CadInputQueue.SendDataPoint Point3dZero
    CadInputQueue.SendKeyin sCmd
    CadInputQueue.SendReset
End Sub

If this code example does not help to fix the issue, please provide a code example to allow us to reproduce the issue - thanks

Best regards,

Artur Goldsweer
BDN Technical Support

I had 

Dim point_X0 As Double
Dim point_Y0 As Double

point_X0 = 0 - L
point_Y0 = 0
CadInputQueue.SendCommand "Place Line;xy=0,0;xy=(point_X0),(point_Y0);reset"

Sorry again, I am an occasional VBA clumsy user.

Best regards,

Nico

NicolasT said:

my VBA does not seem to read the variables on the xy= command/ key-in

What VBA? Share your code. Otherwise there is nothing to be discussed, because it is not clear what code you use to read the values.

Also, please respect the best practices and define what product and version you use.

Regards,

  Jan