编组 [英] Marshalling
本文介绍了编组的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
Hello all，
我需要在may应用程序中使用C ++编写的几个本机dll结构：
typedef struct _UF01_INFORMATIONS {
BYTE Type [MAX_MODULE];
BYTE Nombre_Module;
BYTE Nb_Voies [MAX_MODULE];
BYTE Modele [MAX_MODULE];
char *名称[MAX_MODULE];
char *评论[MAX_MODULE];
BOOL UseInterrupt;
} UF01_INFORMATIONS，* PUF01_INFORMATIONS; 所以我写了这个：
[System.Runtime。 InteropServices.DllImport（@"C：\Program Files（x86）\SELIAtec \ UF01 \ UF01.dll"，EntryPoint =" UF01_OpenDevices"，CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall）]
unsafe static extern Boolean UF01_OpenDevices（ref byte devices）;
[System.Runtime.InteropServices.DllImport（@"C：\Program Files（x86）\SELIAtec\UF01\UF01.dll"，EntryPoint =" UF01_CloseAll"，CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall）]
static extern void UF01_CloseAll（）;
[System.Runtime.InteropServices.DllImport（@"C：\Program Files（x86）\SELIAtec\UF01\UF01.dll"，EntryPoint =" UF01_UD01_8Entrees"，CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall）]
unsafe static extern Boolean UF01_UD01_8Entrees（byte device，byte module，ref byte data）;
[System.Runtime.InteropServices.DllImport（@"C：\Program Files（x86）\SELIAtec\UF01\UF01.dll"，EntryPoint =" UF01_UD01_8Entrees"，CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall）]
unsafe static extern Boolean UF01_GetInfosModule（byte Device，bool Watchdog，ref _UF01_INFORMATIONS uf01）;
public Form1（）
{
InitializeComponent（）;
}
[StructLayout（LayoutKind.Sequential）]
public struct _UF01_INFORMATIONS
{
[MarshalAs（UnmanagedType。 ByValArray，SizeConst = 8）]
public byte [] Type;
公共字节Nombre_Module;
[MarshalAs（UnmanagedType.ByValArray，SizeConst = 8）]
public byte [] Nb_Voies;
[MarshalAs（UnmanagedType.ByValArray，SizeConst = 8）]
public byte [] Modele;
[MarshalAs（UnmanagedType.ByValArray，SizeConst = 8）]
public string [] Name;
[MarshalAs（UnmanagedType.ByValArray，SizeConst = 8）]
public string [] Comments;
public bool UseInterrupt;
}
private unsafe void button1_Click（object sender，EventArgs e）
{
byte nb_Device = new byte（）;
_UF01_INFORMATIONS m_infos = new _UF01_INFORMATIONS（）;
m_infos.Type = new byte [8];
m_infos.Nb_Voies = new byte [8];
m_infos.Modele = new byte [8];
m_infos.Name = new string [8];
m_infos.Comments = new string [8];
m_infos.Nombre_Module = new byte（）;
m_infos.UseInterrupt = false;
int iSize = Marshal.SizeOf（m_infos）;
if（UF01_OpenDevices（ref nb_Device））
{
this.label1.Text =" CPU数量：" + nb_Device;
if（UF01_GetInfosModule（nb_Device，false，ref m_infos））
{
// m_infos =（_ UF01_INFORMATIONS）（Marshal.PtrToStructure（uf01，typeof（_UF01_INFORMATIONS）））;
label2.Visible = true;
label2.Text =" NNumber of modules：" + m_infos.Nombre_Module;
}
}
}
UF01_OpenDevices有效，但我错了
if（UF01_GetInfosModule（nb_Device，false，ref m_infos））
有人能帮帮我吗？
Thanx：）
解决方案
你试过这个：'if（UF01_GetInfosModule（ 0，false，ref m_infos））'或
'if（UF01_GetInfosModule（1，false，ref m_infos））'？
Hello all,
I need to use several native dll struct written in C++ in may application :
typedef struct _UF01_INFORMATIONS{
BYTE Type[MAX_MODULE];
BYTE Nombre_Module;
BYTE Nb_Voies[MAX_MODULE];
BYTE Modele[MAX_MODULE];
char *Name[MAX_MODULE];
char *Comments[MAX_MODULE];
BOOL UseInterrupt;
} UF01_INFORMATIONS, *PUF01_INFORMATIONS;So I wrote this :
[System.Runtime.InteropServices.DllImport(@"C:\Program Files (x86)\SELIAtec\UF01\UF01.dll", EntryPoint = "UF01_OpenDevices", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
unsafe static extern Boolean UF01_OpenDevices(ref byte devices);
[System.Runtime.InteropServices.DllImport(@"C:\Program Files (x86)\SELIAtec\UF01\UF01.dll", EntryPoint = "UF01_CloseAll", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
static extern void UF01_CloseAll();
[System.Runtime.InteropServices.DllImport(@"C:\Program Files (x86)\SELIAtec\UF01\UF01.dll", EntryPoint = "UF01_UD01_8Entrees", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
unsafe static extern Boolean UF01_UD01_8Entrees(byte Device, byte module, ref byte data);
[System.Runtime.InteropServices.DllImport(@"C:\Program Files (x86)\SELIAtec\UF01\UF01.dll", EntryPoint = "UF01_UD01_8Entrees", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
unsafe static extern Boolean UF01_GetInfosModule(byte Device, bool Watchdog, ref _UF01_INFORMATIONS uf01);
public Form1()
{
InitializeComponent();
}
[StructLayout(LayoutKind.Sequential)]
public struct _UF01_INFORMATIONS
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public byte[] Type;
public byte Nombre_Module;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public byte[] Nb_Voies;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public byte[] Modele;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public string[] Name;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public string[] Comments;
public bool UseInterrupt;
}
private unsafe void button1_Click(object sender, EventArgs e)
{
byte nb_Device= new byte();
_UF01_INFORMATIONS m_infos = new _UF01_INFORMATIONS();
m_infos.Type = new byte[8];
m_infos.Nb_Voies = new byte[8];
m_infos.Modele = new byte[8];
m_infos.Name = new string[8];
m_infos.Comments = new string[8];
m_infos.Nombre_Module = new byte();
m_infos.UseInterrupt = false;
int iSize = Marshal.SizeOf(m_infos);
if (UF01_OpenDevices(ref nb_Device))
{
this.label1.Text = "Number of CPU: " + nb_Device;
if (UF01_GetInfosModule(nb_Device, false, ref m_infos))
{
//m_infos = (_UF01_INFORMATIONS)(Marshal.PtrToStructure(uf01, typeof(_UF01_INFORMATIONS)));
label2.Visible = true;
label2.Text = "NNumber of modules : " + m_infos.Nombre_Module;
}
}
}The UF01_OpenDevices works but I get false with
if (UF01_GetInfosModule(nb_Device, false, ref m_infos))
Can someone help me please ?
Thanx :)
解决方案
Did you try this: ‘if( UF01_GetInfosModule( 0, false, ref m_infos))’ or ‘if( UF01_GetInfosModule( 1, false, ref m_infos))’?
这篇关于编组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
