CreateConsolScreenBuffer

[Maverick]

Really have problems when converting "CreateConsolScreenBuffer" to C#. Can
anyone give me an example for the function ?

typedef struct _SECURITY_ATTRIBUTES
{ DWORD nLength;
LPVOID lpSecurityDescriptor; // not sure abt this part
BOOL bInheritHandle;
}
transfer to the following -----> is that correct ?
[StructLayout(LayoutKind.Sequential)]
public struct SECURITY_ATTRIBUTES
{
public int nLength;
public IntPtr lpSecurityDescriptor;
public bool bInheritHandle;

--------------------------------------------------------------------------------------------
//The CreateConsoleScreenBuffer function creates a console screen buffer.
HANDLE CreateConsoleScreenBuffer
(
DWORD dwDesiredAccess,
DWORD dwShareMode,
const SECURITY_ATTRIBUTES* lpSecurityAttributes,
DWORD dwFlags,
LPVOID lpScreenBufferData
);
transfer to the following -----> is that correct ?
[DllImport("Kernel32.dll")]
private static extern int CreateConsoleScreenBuffer(int dwDesiredAccess, int
dwShareMode, SECURITY_ATTRIBUTES obj, int dwFlags, object lpScreenBufferData)
-------------------------------------------------------------------------------------
//the statement execution.
int hNewScreenBuffer = CreateConsoleScreenBuffer(
GENERIC_READ | // read/write access
GENERIC_WRITE,
0, // not shared
NULL, // no security attributes
CONSOLE_TEXTMODE_BUFFER, // must be TEXTMODE
NULL); // reserved; must be NULL

[cody]

> [StructLayout(LayoutKind.Sequential)]

public struct SECURITY_ATTRIBUTES
{
public int nLength;
public IntPtr lpSecurityDescriptor;
public bool bInheritHandle;
}
explicit size with SizeConst=? would be more safe. try
sizeof(SECURITY_ATTRIBUTES) to find out exact size.
[DllImport("Kernel32.dll")]
private static extern int CreateConsoleScreenBuffer(int dwDesiredAccess, int dwShareMode, SECURITY_ATTRIBUTES obj, int dwFlags, object

lpScreenBufferData);

You must pass SECURITY_ATTRIBUTES as ref or out to make it work. The
lpScreenBufferData should be of type byte[] I think.

--
cody

Freeware Tools, Games and Humour
http://www.deutronium.de.vu || http://www.deutronium.tk

[Willy Denoyette [MVP]]

See my reply to your previous post.

Willy.

"Maverick" <Ma******@discussions.microsoft.com> wrote in message
news:87**********************************@microsof t.com...

Really have problems when converting "CreateConsolScreenBuffer" to C#. Can
anyone give me an example for the function ?

typedef struct _SECURITY_ATTRIBUTES
{ DWORD nLength;
LPVOID lpSecurityDescriptor; // not sure abt this part
BOOL bInheritHandle;
}
transfer to the following -----> is that correct ?
[StructLayout(LayoutKind.Sequential)]
public struct SECURITY_ATTRIBUTES
{
public int nLength;
public IntPtr lpSecurityDescriptor;
public bool bInheritHandle;
}
--------------------------------------------------------------------------------------------
//The CreateConsoleScreenBuffer function creates a console screen buffer.
HANDLE CreateConsoleScreenBuffer
(
DWORD dwDesiredAccess,
DWORD dwShareMode,
const SECURITY_ATTRIBUTES* lpSecurityAttributes,
DWORD dwFlags,
LPVOID lpScreenBufferData
);
transfer to the following -----> is that correct ?
[DllImport("Kernel32.dll")]
private static extern int CreateConsoleScreenBuffer(int dwDesiredAccess,
int
dwShareMode, SECURITY_ATTRIBUTES obj, int dwFlags, object
lpScreenBufferData);
-------------------------------------------------------------------------------------
//the statement execution.
int hNewScreenBuffer = CreateConsoleScreenBuffer(
GENERIC_READ | // read/write access
GENERIC_WRITE,
0, // not shared
NULL, // no security attributes
CONSOLE_TEXTMODE_BUFFER, // must be TEXTMODE
NULL); // reserved; must be NULL