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Jul 6th, 2015, 10:45 AM
#1
Thread Starter
Addicted Member
Unhandled exception at 0x00000000
Hi All,
In my project, when I am trying to make a function call to a DLL, I'm getting an exception stating:
Unhandled exception at 0x00000000 in Project_Name.exe: 0xC0000005: Access violation.
The code is as follows:
Code:
Public Structure USER_SET
Dim FilmScreen As Integer
Dim Density As Integer
Dim RunLength As Byte
Dim PatientSize As Integer
Dim Exp As Boolean
Dim switch As Byte
End Structure
<DllImport("Configure.dll", CallingConvention:=CallingConvention.Cdecl, CharSet:=CharSet.Ansi)> _
Public Function Configure_UserSettings(ByRef UserData As USER_SET) As Boolean
End Function
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1_Click
Dim Return_Status as boolean
Dim UserDataSettings as USER_SET = new USER_SET
UserDataSettings.FilmScreen =1
UserDataSettings.Density =2
UserDataSettings.RunLength = &H20
UserDataSettings.PatientSize = 4
UserDataSettings.Exp = false
UserDataSettings.switch = &H10
Return_Status = Configure_UserSettings( UserSettings)
End Sub
Please anybody let me know why I am getting this exception.
Regards,
Susheelss
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Jul 6th, 2015, 11:32 AM
#2
Re: Unhandled exception at 0x00000000
You are not using the DLL correctly, or it is broken.
"Ok, my response to that is pending a Google search" - Bucky Katt.
"There are two types of people in the world: Those who can extrapolate from incomplete data sets." - Unk.
"Before you can 'think outside the box' you need to understand where the box is."
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