asked on

NvSelectDisplayDevice not setting display

GEFORCE 6200
I am using the follwing code for vb.net 2.0

<DllImport("nvcpl.dll")> _
Private Shared Function NvSelectDisplayDevice(ByVal monitor As Integer) As Boolean
End Function

Dim results As Boolean
results = NvSelectDisplayDevice(2)
If results = True Then
MessageBox.Show("T")
Else
MessageBox.Show("F")
End If

The results are true.
According to the documentation all function calls going forward should be displayed in window 2.
Any thing I do afterward displays in window 1.
Any suggestion or help would be appreciated.

Bob Learned

What are you trying to achieve here? Are you trying to display on the 2nd monitor of a 2-monitor setup? The .NET framework can work with multiple monitors, without any API calls.

Bob

Econnergy

ASKER

The monitors are set up in dual view mode NOT span mode
The form startposition was set to manual
The following code does not start the program on the second monitor

Protected Overrides Sub OnLoad(ByVal e As System.EventArgs)
Dim s As Screen
For Each s In Screen.AllScreens
If Not s.Primary Then
Me.Bounds = s.Bounds
Exit For
End If
Next
End Sub

Bob Learned

What does Screen.AllScreens.Length return?

Bob

ASKER CERTIFIED SOLUTION

Econnergy

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial