Marshal & Hwnd - Please Help.

[Juan Irigoyen]

I have the next code

byte[] data = new byte[14];
Marshal.Copy(this.Hwnd, data, 0, 4);

this code compiled well, but when i execute the code receive a error.

How can copy this.Hwnd (Handle of MessageWindow type IntPtr) to the first 4
bytes in data ?

Thanks.

[Andrew Gnenny]

Hi,
Your code tries to copy 4 bytes of data from the location pointed by IntPtr
(this.Hwnd).
If you want to copy the IntPtr value (not the data it points) you could use
such approach:

byte[] data = new byte[14];
int ptrValue= this.Hwnd.ToInt32();
data[0] = (byte)ptrValue;
data[1] = (byte)ptrValue >> 8;
data[2] = (byte)ptrValue >> 16;
data[3] = (byte)ptrValue >> 24;

--
Andrew Gnenny
pulsar2003@/no-spam/email.ru (Please remove /no-spam/ for reply)
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE
"Juan Irigoyen" <ju***********@ono.com> wrote in message
news:zr*********************@news.ono.com...

I have the next code

byte[] data = new byte[14];
Marshal.Copy(this.Hwnd, data, 0, 4);

this code compiled well, but when i execute the code receive a error.

How can copy this.Hwnd (Handle of MessageWindow type IntPtr) to the first 4 bytes in data ?

Thanks.

[Juan Irigoyen]

Sorry this code have n error, Cannot implicity convert type 'int' to 'byte'

"Andrew Gnenny" <pulsar2003@/no-spam/email.ru> escribió en el mensaje
news:3f********@nexus.validio.com.ua...

Hi,
Your code tries to copy 4 bytes of data from the location pointed by IntPtr (this.Hwnd).
If you want to copy the IntPtr value (not the data it points) you could use such approach:

byte[] data = new byte[14];
int ptrValue= this.Hwnd.ToInt32();
data[0] = (byte)ptrValue;
data[1] = (byte)ptrValue >> 8;
data[2] = (byte)ptrValue >> 16;
data[3] = (byte)ptrValue >> 24;

--
Andrew Gnenny
pulsar2003@/no-spam/email.ru (Please remove /no-spam/ for reply)
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE
"Juan Irigoyen" <ju***********@ono.com> wrote in message
news:zr*********************@news.ono.com...

I have the next code

byte[] data = new byte[14];
Marshal.Copy(this.Hwnd, data, 0, 4);

this code compiled well, but when i execute the code receive a error.

How can copy this.Hwnd (Handle of MessageWindow type IntPtr) to the

first 4

bytes in data ?

Thanks.

[Andrew Gnenny]

Try this code:
byte[] data = new byte[14];
int ptrValue= this.Hwnd.ToInt32();
data[0] = (byte)ptrValue;
data[1] = (byte)(ptrValue >> 8);
data[2] = (byte)(ptrValue >> 16);
data[3] = (byte)(ptrValue >> 24);

--
Andrew Gnenny
pulsar2003@/no-spam/email.ru (Please remove /no-spam/ for reply)
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE
"Juan Irigoyen" <ju***********@ono.com> wrote in message
news:7b*********************@news.ono.com...

Sorry this code have n error, Cannot implicity convert type 'int' to 'byte'
"Andrew Gnenny" <pulsar2003@/no-spam/email.ru> escribió en el mensaje
news:3f********@nexus.validio.com.ua...

Hi,
Your code tries to copy 4 bytes of data from the location pointed by

IntPtr

(this.Hwnd).
If you want to copy the IntPtr value (not the data it points) you could

use

such approach:

byte[] data = new byte[14];
int ptrValue= this.Hwnd.ToInt32();
data[0] = (byte)ptrValue;
data[1] = (byte)ptrValue >> 8;
data[2] = (byte)ptrValue >> 16;
data[3] = (byte)ptrValue >> 24;

--
Andrew Gnenny
pulsar2003@/no-spam/email.ru (Please remove /no-spam/ for reply)
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE
"Juan Irigoyen" <ju***********@ono.com> wrote in message
news:zr*********************@news.ono.com...

I have the next code

byte[] data = new byte[14];
Marshal.Copy(this.Hwnd, data, 0, 4);

this code compiled well, but when i execute the code receive a error.

How can copy this.Hwnd (Handle of MessageWindow type IntPtr) to the

first

4

bytes in data ?

Thanks.