C# Discussion Boards - CodeProject

Re: C# file exists on network drive

classy_dog15-Mar-13 8:28

classy_dog

15-Mar-13 8:28

Thanks! this works!

If existing String Form name, get that by database then open

Jayantha Bandara15-Mar-13 0:37

Jayantha Bandara

15-Mar-13 0:37

I'm developing WCF silverlight application in C#.net 2010.
My question is simple, i'm getting WPF child window form name from database.
now i want to open that Child Window form using name/string coming from database. How to convert that string value into Child Window or do you have any other best solution solve for this. please help me thanks for you all

Re: If existing String Form name, get that by database then open

Richard MacCutchan15-Mar-13 1:02

Richard MacCutchan

15-Mar-13 1:02

I think you would need to use Reflection[^].

Use the best guess

Re: If existing String Form name, get that by database then open

Pete O'Hanlon15-Mar-13 1:12

Pete O'Hanlon

15-Mar-13 1:12

You're trying to open a WPF window in a Silverlight application using WCF to retrieve the WPF window? OMG | :OMG:

Good luck.

I was brought up to respect my elders. I don't respect many people nowadays.

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

Re: If existing String Form name, get that by database then open

V.15-Mar-13 3:44

15-Mar-13 3:44

How funny, I was thinking exactly the same thing in more or less the same way even. Wink | ;)

V.

(MQOTD Rules and previous Solutions )

Re: If existing String Form name, get that by database then open

Mycroft Holmes15-Mar-13 13:39

Mycroft Holmes

15-Mar-13 13:39

Now you're being obtuse, you know he is trying to get the name of the window from the database, opening a WPF window in silverlight is going to be a challenge I'll admit! Laugh | :laugh:

Never underestimate the power of human stupidity
RAH

Resolving dependent projects

Bernhard Hiller15-Mar-13 0:15

Bernhard Hiller

15-Mar-13 0:15

msbuild and Visual studio seem to resolve project dependencies differently: a solution file contains the project for the main executable, and some projects for dlls the executable depends on. One of these dll projects depends on another project which is not part of the solution.

Just to show the major players in this case, and a simple way to reproduce it:
solution contains ExeProject and MainDllProject, MainDllProject depends on SubDllProject which is not part of the solution (but in the same hierarchy on the file system). ExeProject depends on MainDllProjectClass1 of MainDllProject (that class does not depend on SubDllProject; only MainDllProjectClass2 depends on SubDllProject, but it is not used by ExeProject nor MainDllProjectClass1):

Solution
    ExeProject
        Form1 (depends on MainDllProject.MainDllProjectClass1)
    MainDllProject
        MainDllProjectClass1
        MainDllProjectClass2 (depends on SubDllProject.SubDllProjectClass)
Not part of the solution
    SubDllProject
        SubDllProjectClass

When the solution is built with Visual Studio 2010, it fails: MainDllProject cannot be built because SubDllProject cannot be found.

When the solution is built with msbuild, the build succeeds. Strangely, the debug version of SubDllProject is built despite the parameter /p:Configuration=Release.

The log file for msbuild is some 374 kB, do you have some hints how to analyse it? I want to understand why it builds SubDllProject at all, why it is the debug version, and evetually how to prevent it from being built when not referenced (I want the the solution to contain all referenced projects, and when a dependency was forgotten, I want to see an error message).

Note: this case is similar to http://stackoverflow.com/questions/12836023/visual-studio-build-non-dependent-projects-in-solution[^], but quite the other way round...
I understand from http://blogs.msdn.com/b/visualstudio/archive/2010/12/21/incorrect-solution-build-ordering-when-using-msbuild-exe.aspx[^] that msbuild translates the sln file into its own format - but the sln.metaproj file does not show any reference to SubDllProject either.

Re: Resolving dependent projects

Pete O'Hanlon15-Mar-13 1:38

Pete O'Hanlon

15-Mar-13 1:38

You might have better luck asking in this[^] forum.

I was brought up to respect my elders. I don't respect many people nowadays.

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

substring from form1 to form2....

Goaty6510914-Mar-13 17:15

Goaty65109

14-Mar-13 17:15

Hey CP,

Getting text from one form to another is no problem. But I am having issues showing data from a ComboBox from form1 to display as text in form 2. Alright let's jump right into my example.

string instText = comboInst.GetItemText(comboInst.SelectedItem);
string folder = instText.Substring(0, 4);

comboInst is a combo box that has a list of items that is pulled from a directory. All items have a leading 4 digits that I use a lot in form1. But I can't get those 4 values for the life of me to show even in a messagebox on form 2. It just shows blank when using methods that pull information from a textBox.Text.

I need to be able to use both instText and folder strings in other forms.

Anyone got any ideas? The example I used is located on stackOverflow:
[^]

Thanks!

Re: substring from form1 to form2....

Jibesh14-Mar-13 17:35

Jibesh

14-Mar-13 17:35

If you want to get the selected Item value, you can directly get the selected value using the combo.SelectedItem propety.
but thats not the problem here for you.

did you check the contents of instText has the data you selected? have you tried to debug this?

what is the content of instText?? moreover in which method you call these lines?

Guidelines for posting questions in the forum

Jibesh V P

Re: substring from form1 to form2....

Goaty6510914-Mar-13 18:57

Goaty65109

14-Mar-13 18:57

Figured it out, dunno how I mucked it up at first, here's how you do it correctly.

my button from form1

private void buttonSched_Click(object sender, EventArgs e)
        {
            string instText = comboInst.GetItemText(comboInst.SelectedItem);
            string folder = instText.Substring(0, 4);
            Schedule Open = new Schedule(instText);
            Open.Show();
        }

Calling is in form2:

public partial class Form2 : Form
    {
        private string start;

        public Form2(string inst)
        {
            InitializeComponent();
            this.start = inst;
        }

private void Schedule_Load(object sender, EventArgs e)
        {

            System.Windows.Forms.MessageBox.Show(start);
}

Quite simple, I know, but I was thinking too much into something that didn't really need that deep of thought. Thanks for the looks! Hope this helps someone in the future.

BTW - you can alter the string after it's been called to the new form. I.E.

System.Windows.Forms.MessageBox.Show(start.Substring(0, 4));

This is what I needed the code to do, grab the first 4 characters from the string. Now I can use the string raw, or formatted if I like. Thanks again!

BlueTooth Bytes Disappearing

C-P-User-314-Mar-13 13:03

C-P-User-3

14-Mar-13 13:03

My small box sends the same byte continuously to the PC across a bluetooth connection.

After successfully receiving about four thousand bytes (give or take a few hundred) no more bytes are seen. I am quite confident that the bytes (a whole lot more than four thousand) continue to be sent well after the stream disappears from the rest of the system.

I am highly suspicious that Windows is somehow, for some reason, not accurately giving these bytes to my app.

My suspicion has been heightened because my external transmitting box continued after I stopped the app. I restarted the app, and I got 941 "left over" bytes, from where, I don't really know (but my external byte generator had been silent for several minutes, so it was no longer sending data).

We then started the small box generating continual data again, and saw the same behavior: 4435 bytes were seen, despite a two minute flood of bytes at 921600 bps.

Here is the receive thread

void RecieveThread()
 {
     int n;

     while (continueRecieving)
     {
         n = connectorPort.BytesToRead;

         byte[] bits = new byte[n];

         if (n > 0)
         {
             connectorPort.Read(bits, 0, n);
         }

         Write(bits);
     }
 }

Just in case anyone feels it's important, here is the Write(bits) routine

public void Write(byte[] b)
{
    if (writting)
    {
        for (int i = 0; i < b.Length; i++)
        {
            storage[sPlace++] = b[i];

            pass += b[i].ToString("X2") + " ";

            if (sPlace % numericUpDown1.Value == 0)
            {
                pass += "\r\n";
            }
        }
    }
}

Has anyone previously experienced disappearing bluetooth bytes on a Win7 machine with a C# app ?

View in Nhibernate

hadi_ganji14-Mar-13 6:06

hadi_ganji

14-Mar-13 6:06

How to use database view with Fluent nhibernate?
How can i recall views that are created manually in database with nhibernate technology or is there any option in Fluent nhibernate that create views directly?

Re: View in Nhibernate - Repost

Richard MacCutchan14-Mar-13 6:24

Richard MacCutchan

14-Mar-13 6:24

You already asked this question at view in Fluent Nhibernate[^]; please do not repeat the same post in multiple forums.

Use the best guess

Unable to set registry value

sjs4u13-Mar-13 21:27

sjs4u

13-Mar-13 21:27

Hi,

I am using MSI to install my c# winform application. I am using custom action at the start of the installer. This is my latest version where I have added custom action. When I install latest version (fresh installation) then it works properly. But when I install latest version on previous version my custom action related registry key(e.g. ModeSelection Key) is not creating in the registry but some basic and common key(Filepath,language etc) are created successfully.

What is the reason behind this? I wanted to create that registry key depeding upon the custom action selection.

Thanks
sjs

Re: Unable to set registry value

dusty_dex14-Mar-13 5:07

dusty_dex

14-Mar-13 5:07

You didn't say what the *full* key path is.

??

"It's true that hard work never killed anyone. But I figure, why take the chance." - Ronald Reagan

That's what machines are for.

Got a problem?
Sleep on it.

How to use CreateTextServices in C#

cpw999cn13-Mar-13 20:32

cpw999cn

13-Mar-13 20:32

I am trying to draw a TextBox in my DUI framework. At last, I find a way to create a windowless RichTextBox with a custom ITextHost interface.I've got a C++ implementation. But when I try to implement it from C#, I got a lot of exceptions.

C++ Code:

C++

class ITextHost : public IUnknown
{
public:

	//@cmember Get the DC for the host
	virtual HDC 		TxGetDC() = 0;

	//@cmember Release the DC gotten from the host
	virtual INT			TxReleaseDC(HDC hdc) = 0;
	
	//@cmember Show the scroll bar
	virtual BOOL 		TxShowScrollBar(INT fnBar, BOOL fShow) = 0;

	//@cmember Enable the scroll bar
	virtual BOOL 		TxEnableScrollBar (INT fuSBFlags, INT fuArrowflags) = 0;

	//@cmember Set the scroll range
	virtual BOOL 		TxSetScrollRange(
							INT fnBar,
							LONG nMinPos,
							INT nMaxPos,
							BOOL fRedraw) = 0;

	//@cmember Set the scroll position
	virtual BOOL 		TxSetScrollPos (INT fnBar, INT nPos, BOOL fRedraw) = 0;

	//@cmember InvalidateRect
	virtual void		TxInvalidateRect(LPCRECT prc, BOOL fMode) = 0;

	//@cmember Send a WM_PAINT to the window
	virtual void 		TxViewChange(BOOL fUpdate) = 0;
	
	//@cmember Create the caret
	virtual BOOL		TxCreateCaret(HBITMAP hbmp, INT xWidth, INT yHeight) = 0;

	//@cmember Show the caret
	virtual BOOL		TxShowCaret(BOOL fShow) = 0;

	//@cmember Set the caret position
	virtual BOOL		TxSetCaretPos(INT x, INT y) = 0;

	//@cmember Create a timer with the specified timeout
	virtual BOOL 		TxSetTimer(UINT idTimer, UINT uTimeout) = 0;

	//@cmember Destroy a timer
	virtual void 		TxKillTimer(UINT idTimer) = 0;

	//@cmember Scroll the content of the specified window's client area
	virtual void		TxScrollWindowEx (
							INT dx,
							INT dy,
							LPCRECT lprcScroll,
							LPCRECT lprcClip,
							HRGN hrgnUpdate,
							LPRECT lprcUpdate,
							UINT fuScroll) = 0;
	
	//@cmember Get mouse capture
	virtual void		TxSetCapture(BOOL fCapture) = 0;

	//@cmember Set the focus to the text window
	virtual void		TxSetFocus() = 0;

	//@cmember Establish a new cursor shape
	virtual void 	TxSetCursor(HCURSOR hcur, BOOL fText) = 0;

	//@cmember Converts screen coordinates of a specified point to the client coordinates
	virtual BOOL 		TxScreenToClient (LPPOINT lppt) = 0;

	//@cmember Converts the client coordinates of a specified point to screen coordinates
	virtual BOOL		TxClientToScreen (LPPOINT lppt) = 0;

	//@cmember Request host to activate text services
	virtual HRESULT		TxActivate( LONG * plOldState ) = 0;

	//@cmember Request host to deactivate text services
   	virtual HRESULT		TxDeactivate( LONG lNewState ) = 0;

	//@cmember Retrieves the coordinates of a window's client area
	virtual HRESULT		TxGetClientRect(LPRECT prc) = 0;

	//@cmember Get the view rectangle relative to the inset
	virtual HRESULT		TxGetViewInset(LPRECT prc) = 0;

	//@cmember Get the default character format for the text
	virtual HRESULT 	TxGetCharFormat(const CHARFORMATW **ppCF ) = 0;

	//@cmember Get the default paragraph format for the text
	virtual HRESULT		TxGetParaFormat(const PARAFORMAT **ppPF) = 0;

	//@cmember Get the background color for the window
	virtual COLORREF	TxGetSysColor(int nIndex) = 0;

	//@cmember Get the background (either opaque or transparent)
	virtual HRESULT		TxGetBackStyle(TXTBACKSTYLE *pstyle) = 0;

	//@cmember Get the maximum length for the text
	virtual HRESULT		TxGetMaxLength(DWORD *plength) = 0;

	//@cmember Get the bits representing requested scroll bars for the window
	virtual HRESULT		TxGetScrollBars(DWORD *pdwScrollBar) = 0;

	//@cmember Get the character to display for password input
	virtual HRESULT		TxGetPasswordChar(TCHAR *pch) = 0;

	//@cmember Get the accelerator character
	virtual HRESULT		TxGetAcceleratorPos(LONG *pcp) = 0;

	//@cmember Get the native size
    virtual HRESULT		TxGetExtent(LPSIZEL lpExtent) = 0;

	//@cmember Notify host that default character format has changed
	virtual HRESULT 	OnTxCharFormatChange (const CHARFORMATW * pcf) = 0;

	//@cmember Notify host that default paragraph format has changed
	virtual HRESULT		OnTxParaFormatChange (const PARAFORMAT * ppf) = 0;

	//@cmember Bulk access to bit properties
	virtual HRESULT		TxGetPropertyBits(DWORD dwMask, DWORD *pdwBits) = 0;

	//@cmember Notify host of events
	virtual HRESULT		TxNotify(DWORD iNotify, void *pv) = 0;

	// Far East Methods for getting the Input Context
//#ifdef WIN95_IME
	virtual HIMC		TxImmGetContext() = 0;
	virtual void		TxImmReleaseContext( HIMC himc ) = 0;
//#endif

	//@cmember Returns HIMETRIC size of the control bar.
	virtual HRESULT		TxGetSelectionBarWidth (LONG *lSelBarWidth) = 0;

};

My C# implementation:

[ComImport, Guid("C5BDD8D0-D26E-11CE-A89E-00AA006CADC5"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface ITextHost
    {
        //@cmember Get the DC for the host
        IntPtr TxGetDC();

        //@cmember Release the DC gotten from the host
        int TxReleaseDC(IntPtr hdc);

        //@cmember Show the scroll bar
        BOOL TxShowScrollBar(int fnBar, BOOL fShow);

        //@cmember Enable the scroll bar
        BOOL TxEnableScrollBar(int fuSBFlags, int fuArrowflags);

        //@cmember Set the scroll range
        BOOL TxSetScrollRange(int fnBar, int nMinPos, int nMaxPos, BOOL fRedraw);

        //@cmember Set the scroll position
        BOOL TxSetScrollPos(int fnBar, int nPos, BOOL fRedraw);

        //@cmember InvalidateRect
        void TxInvalidateRect(RECT prc, BOOL fMode);

        //@cmember Send a WM_PAINT to the window
        void TxViewChange(BOOL fUpdate);

        //@cmember Create the caret
        BOOL TxCreateCaret(IntPtr hbmp, int xWidth, int yHeight);

        //@cmember Show the caret
        BOOL TxShowCaret(BOOL fShow);

        //@cmember Set the caret position
        BOOL TxSetCaretPos(int x, int y);

        //@cmember Create a timer with the specified timeout
        BOOL TxSetTimer(uint idTimer, uint uTimeout);

        //@cmember Destroy a timer
        void TxKillTimer(uint idTimer);

        //@cmember Scroll the content of the specified window's client area
        void TxScrollWindowEx(
            int dx,
            int dy,
            RECT lprcScroll,
            RECT lprcClip,
            IntPtr hrgnUpdate,
            RECT lprcUpdate,
            uint fuScroll);

        //@cmember Get mouse capture
        void TxSetCapture(BOOL fCapture);

        //@cmember Set the focus to the text window
        void TxSetFocus();

        //@cmember Establish a new cursor shape
        void TxSetCursor(IntPtr hcur, BOOL fText);

        //@cmember Converts screen coordinates of a specified point to the client coordinates
        BOOL TxScreenToClient(POINT lppt);

        //@cmember Converts the client coordinates of a specified point to screen coordinates
        BOOL TxClientToScreen(POINT lppt);

        //@cmember Request host to activate text services
        HRESULT TxActivate(int plOldState);

        //@cmember Request host to deactivate text services
        HRESULT TxDeactivate(int lNewState);

        //@cmember Retrieves the coordinates of a window's client area
        HRESULT TxGetClientRect(RECT prc);

        //@cmember Get the view rectangle relative to the inset
        HRESULT TxGetViewInset(RECT prc);

        //@cmember Get the default character format for the text
        HRESULT TxGetCharFormat(ref CHARFORMAT ppCF);

        //@cmember Get the default paragraph format for the text
        HRESULT TxGetParaFormat(ref PARAFORMAT ppPF);

        //@cmember Get the background color for the window
        COLORREF TxGetSysColor(int nIndex);

        //@cmember Get the background (either opaque or transparent)
        HRESULT TxGetBackStyle(out TXTBACKSTYLE pstyle);

        //@cmember Get the maximum length for the text
        HRESULT TxGetMaxLength(out int pLength);

        //@cmember Get the bits representing requested scroll bars for the window
        HRESULT TxGetScrollBars(out int pdwScrollBar);

        //@cmember Get the character to display for password input
        HRESULT TxGetPasswordChar(out char pch);

        //@cmember Get the accelerator character
        HRESULT TxGetAcceleratorPos(out int pcp);

        //@cmember Get the native size
        HRESULT TxGetExtent(SIZE lpExtent);

        //@cmember Notify host that default character format has changed
        HRESULT OnTxCharFormatChange(ref CHARFORMAT pcf);

        //@cmember Notify host that default paragraph format has changed
        HRESULT OnTxParaFormatChange(ref PARAFORMAT ppf);

        //@cmember Bulk access to bit properties
        HRESULT TxGetPropertyBits(int dwMask, ref int pdwBits);

        //@cmember Notify host of events
        HRESULT TxNotify(int iNotify, IntPtr pv);

        IntPtr TxImmGetContext();
        void TxImmReleaseContext(IntPtr himc);

        //@cmember Returns HIMETRIC size of the control bar.
        HRESULT TxGetSelectionBarWidth(out int lSelBarWidth);
    }

    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
    public struct CHARFORMAT
    {
        public int cbSize;
        public int dwMask;
        public int dwEffects;
        public int yHeight;
        public int yOffset;
        public int crTextColor;
        public byte bCharSet;
        public byte bPitchAndFamily;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
        public string szFaceName;
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct PARAFORMAT
    {
        public int cbSize;
        public int dwMask;
        public short wNumbering;
        public short wReserved;
        public int dxStartIndent;
        public int dxRightIndent;
        public int dxOffset;
        public short wAlignment;
        public short cTabCount;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
        public int[] rgxTabs; // MAX_TAB_STOPS
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct POINT
    {
        public Int32 x;
        public Int32 y;

        public POINT(Int32 x, Int32 y) { this.x = x; this.y = y; }
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct SIZE
    {
        public Int32 cx;
        public Int32 cy;

        public SIZE(Int32 cx, Int32 cy) { this.cx = cx; this.cy = cy; }
    }

    public enum BOOL
    {
        False = 0,
        True
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct COLORREF
    {
        public uint ColorDWORD;

        public COLORREF(System.Drawing.Color color)
        {
            ColorDWORD = (uint)color.R + (((uint)color.G) << 8) + (((uint)color.B) << 16);
        }

        public System.Drawing.Color GetColor()
        {
            return System.Drawing.Color.FromArgb((int)(0x000000FFU & ColorDWORD),
           (int)(0x0000FF00U & ColorDWORD) >> 8, (int)(0x00FF0000U & ColorDWORD) >> 16);
        }

        public void SetColor(System.Drawing.Color color)
        {
            ColorDWORD = (uint)color.R + (((uint)color.G) << 8) + (((uint)color.B) << 16);
        }
    }

    public enum TXTBACKSTYLE
    {
        TXTBACK_TRANSPARENT = 0,		//@emem	background should show through
        TXTBACK_OPAQUE,					//@emem	erase background
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct RECT
    {
        public int Left;
        public int Top;
        public int Right;
        public int Bottom;

        public RECT(int left, int top, int right, int bottom)
        {
            this.Left = left;
            this.Top = top;
            this.Right = right;
            this.Bottom = bottom;
        }

        public Rectangle Rect
        {
            get
            {
                return new Rectangle(
                    this.Left,
                    this.Top,
                    this.Right - this.Left,
                    this.Bottom - this.Top);
            }
        }

        public static RECT FromXYWH(int x, int y, int width, int height)
        {
            return new RECT(x,
                            y,
                            x + width,
                            y + height);
        }

        public static RECT FromRectangle(Rectangle rect)
        {
            return new RECT(rect.Left,
                                rect.Top,
                                rect.Right,
                                rect.Bottom);
        }
    }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "HRESULT"), System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1028:EnumStorageShouldBeInt32",
        Justification = "The base type for all of these value is uint")]
    public enum HRESULT : uint
    {
        /// <summary>
        /// S_FALSE
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "FALSE")]
        S_FALSE = 0x0001,

        /// <summary>
        /// S_OK
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "OK")]
        S_OK = 0x0000,

        /// <summary>
        /// E_INVALIDARG
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "INVALIDARG")]
        E_INVALIDARG = 0x80070057,

        /// <summary>
        /// E_OUTOFMEMORY
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "OUTOFMEMORY")]
        E_OUTOFMEMORY = 0x8007000E,

        /// <summary>
        /// E_NOINTERFACE
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "NOINTERFACE")]
        E_NOINTERFACE = 0x80004002,

        /// <summary>
        /// E_FAIL
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "FAIL")]
        E_FAIL = 0x80004005,

        /// <summary>
        /// E_ELEMENTNOTFOUND
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "ELEMENTNOTFOUND")]
        E_ELEMENTNOTFOUND = 0x80070490,

        /// <summary>
        /// TYPE_E_ELEMENTNOTFOUND
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "TYPE")]
        TYPE_E_ELEMENTNOTFOUND = 0x8002802B,


        /// <summary>
        /// NO_OBJECT
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "NO_OBJECT")]
        NO_OBJECT = 0x800401E5,

        /// <summary>
        /// Win32 Error code: ERROR_CANCELLED
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "ERROR")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "CANCELLED")]
        ERROR_CANCELLED = 1223,

        /// <summary>
        /// ERROR_CANCELLED
        /// </summary>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "ERROR")]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "CANCELLED")]
        E_ERROR_CANCELLED = 0x800704C7,

        /// <summary>
        /// The requested resource is in use
        /// </summary>
        RESOURCE_IN_USE = 0x800700AA,
    }

[DllImport("riched20.dll")]
public static extern int CreateTextServices(
       [MarshalAs(UnmanagedType.IUnknown)] object punkOuter,
       ITextHost pITextHost,
       [Out, MarshalAs(UnmanagedType.IUnknown)] out object ppUnk);

ITextHost host = new CTextHost(this);
object ppUnk;
var r = CreateTextServices(null, host, out ppUnk);

I recived ExecutionEngineException and AccessViolationException again and again. Is there any problem with it?
Thanks in advance!

Re: How to use CreateTextServices in C#

Bernhard Hiller13-Mar-13 22:01

Bernhard Hiller

13-Mar-13 22:01

Implementing C++ interfaces in C# is a pain. You could create a wrapper with managed C++ and then derive your C# class from the managed C++ class.

Re: How to use CreateTextServices in C#

cpw999cn13-Mar-13 22:40

cpw999cn

13-Mar-13 22:40

My god. I am poor in C++. Dead | X|

C# Receive from TCP send to COM2

dockwomblejr13-Mar-13 11:55

dockwomblejr

13-Mar-13 11:55

I have a Software Program from a MICROS Server that can send via TCP or Serial Port. I have another application on another server that sends and receives data from the MICROS Server through a physical null modem cable on Serial port COM2. I am virtualizing the MICROS Server and that does away with the Serial Port communication. I can't change the Server that receives the data from a Serial Port. So, does anyone have a solution to send from the MICROS Server through TCP to the second server and be able to pass that down to COM2 and be able to have COM2 respond back through the TCP port back to the MICROS Server without having a physical cable? Any code support would be greatly appreciated.

Re: C# Receive from TCP send to COM2

jschell14-Mar-13 7:57

jschell

14-Mar-13 7:57

Why are your attempting to create your API at the TCP level rather than just create a Send/Receive API and let the API internals deal with the communication?

Re: C# Receive from TCP send to COM2

dockwomblejr14-Mar-13 13:05

dockwomblejr

14-Mar-13 13:05

I might have not explained it correctly. I have been asked to Virtualize a Microsoft Server which runs an application Server Software called MICROS. MICROS is used as the back end for POS Systems. When MICROS gets a transaction, it can send that transaction out through TCP or Serial Port. There is another Server that is connected to the MICROS Server via null modem cable. Since we are virtualizing the MICROS Server on a Windows 2008 R2 Server, we can not get the Serial Port to pass through from the Virtual Host because Microsoft no longer supports passing through Serial Ports from the Virtual Host to the Virtual Session. I am looking to create a C# Application to take the place of communicating on both sides because the null modem cable can not be used. The Server that receives data and sends data back to the MICROS Server is an old outdated piece of software that I can't change right now because there is no newer version. It is a DOS Application. So, I am looking for a way to pass Serial to Serial through Named Pipes, Serial to TCP, or any other method. If the receiving Server was able to send and receive via TCP then this wouldn't be an issue. My client is pushing me to make it happen.

Thanks! Smile | :)

Re: C# Receive from TCP send to COM2

micke.andersson15-Mar-13 6:03

micke.andersson

15-Mar-13 6:03

Unless I'm mistaken you are looking for this:
http://www.eterlogic.com/Products.VSPE.html[^]

I used the free variant and it works perfectly fine. You can create any number of serial ports and connect them virtually on the same machine or remotely over tcp/ip. You can also create gateways and bridges. Very neat.

I guess you have buy it, the server variant is not free.

how can i index files in c#

Member 888804413-Mar-13 10:26

Member 8888044

13-Mar-13 10:26

hello, how can i index my files form my system and then use that index for fast searching in c#. for desktop search engine

Re: how can i index files in c#

R. Giskard Reventlov13-Mar-13 10:40

R. Giskard Reventlov

13-Mar-13 10:40

Start here[^]. You might also search this site to see if there any articles that might be useful.

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