Problem with System::drawing::point allocation...

Visual C++ Express Edition

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    - Help with "Concentration" Game Right. I just thought it might simplify the code to have them all under one sub. Also, I may be confused, but the sample code you initially posted as an example had the words displaying in a message box. For my program, the words must display when each label is clicked. If they match, the labels are disabled and change color. If they don't match, the words disappear and the labels go blank again. Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - How to pop up notification in win32 Hi All Can any one tell me how to pop up notification message(as all messenger does to indicate user online off line) using win32 programming. The basic code i am using is the simply win32 code for creating a window. #include "stdafx.h" #define MAX_LOADSTRING 100 // Global Variables: HINSTANCE hInst; // current instance TCHAR szTitle[MAX_LOADSTRING]; // The title bar text TCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name VOID CALLBACK TimerProc (HWND, UINT, UINT, DWORD ) ; #define ID_TIMER 1 // Forward declarations of functions included in this code module: ATOM MyRegisterClass(HINSTANCE hInstance); BOOL InitInstance(HINSTANCE, int); LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM); int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) { MSG msg; HACCEL hAccelTable; LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); LoadString(hInstance, IDC_TESTTASKBARNOTIFICATION, szWindowClass, MAX_LOADSTRING); MyRegisterClass(hInstance); if (!InitInstance (hInstance, nCmdShow)) { return FALSE; } hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_TESTTASKBARNOTIFICATION); while (GetMessage(&msg, NULL, 0, 0)) { if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) { TranslateMessage(&msg); DispatchMessage(&msg); } } return (int) msg.wParam; } ATOM MyRegisterClass(HINSTANCE hInstance) { WNDCLASSEX wcex; wcex.cbSize = sizeof(WNDCLASSEX); wcex.style = CS_HREDRAW | CS_VREDRAW; wcex.lpfnWndProc = (WNDPROC)WndProc; wcex.cbClsExtra = 0; wcex.cbWndExtra = 0; wcex.hInstance = hInstance; wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_TESTTASKBARNOTIFICATION); wcex.hCursor = LoadCursor(NULL, IDC_ARROW); wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); wcex.lpszMenuName = (LPCTSTR)IDC_TESTTASKBARNOTIFICATION; wcex.lpszClassName = szWindowClass; wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL); return RegisterClassEx(&wcex); } BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) { HWND hWnd; hInst = hInstance; // Store instance handle in our global variable hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPED | WS_VISIBLE, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); if (!hWnd) { return FALSE; } ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE; } LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { int wmId, wmEvent; PAINTSTRUCT ps; HDC hdc; HWND hPopUp; char error[5]; switch (message) { case WM_CREATE: SetTimer (hPopUp, ID_TIMER, 1000, TimerProc) ; return 0; case WM_COMMAND: wmId = LOWORD(wParam); wmEvent = HIWORD(wParam); // Parse the menu selections: switch (wmId) { case IDM_ABOUT: DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About); break; case IDM_EXIT: DestroyWindow(hWnd); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } break; case WM_PAINT: hdc = BeginPaint(hWnd, &ps); // TODO: Add any drawing code here... EndPaint(hWnd, &ps); break; case WM_DESTROY: PostQuitMessage(0); KillTimer (hWnd, ID_TIMER) ; break; default: return DefWindowProc(hWnd, message, wParam, lParam); } return 0; } // Message handler for about box. LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) { switch (message) { case WM_INITDIALOG: return TRUE; case WM_COMMAND: if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) { EndDialog(hDlg, LOWORD(wParam)); return TRUE; } break; } return FALSE; } VOID CALLBACK TimerProc (HWND hwnd, UINT message, UINT iTimerID, DWORD dwTime) { static BOOL fFlipFlop = FALSE ; HBRUSH hBrush ; HDC hdc ; RECT rc ; MessageBeep (-1) ; fFlipFlop = !fFlipFlop ; GetClientRect (hwnd, &rc) ; hdc = GetDC (hwnd) ; hBrush = CreateSolidBrush (fFlipFlop RGB(255,0,0) : RGB(0,0,255)) ; FillRect (hdc, &rc, hBrush) ; ReleaseDC (hwnd, hdc) ; DeleteObject (hBrush) ; } Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - How do you end / close a DLL? I am trying to use the Me.Dispose, but it doesn't work. What is the correct way of closing / end a DLL app. The END keyword can't be used in a DLL. Thanks in advance for your help. William Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - How to make a Tabbed WebBrowser A Tabbed WebBrowser Sample Project Many new developers become excited when they discover the WebBrowser Control. They also want to couple it with tabs and make a tabbed webbrowser. One of two things happen, they end up with a poor webbrowser, one that isn＊t really useable or they give up in frustration. This is a project containing several sophisticated classes to get you started. There are an awful lot of things to know. The standard webbrowser control looks very complete to the novice and intermediate level programmer. It＊s not complete. For example, the standard VS2005 webBrowser , does not supply adequate navigational data to deal with Flash and Javascripts in new window situations, limiting the ability to control popups. There are good solutions available if one uses the extended events requiring a wrapper class which exposes these events. Such a class would be managed DLL control and behaving almost like the webbrowser. To my knowledge none have been developed in VB. This projects supplies such a DLL written in C# by jlandheer. An elaborate discussion of this control can be found here: The name of the DLL is ExtendedWebBrowser2.DLL and it various aspects are discussed at length here: http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=706113&SiteID=1 Supplied Classes I built this DLL from his C# demo project found here: http://www.codeproject.com/csharp/ExtendedWebBrowser.asp and he deserves the credit for this control. The important thing is that this project has this dll and it＊s used wisely as an example in a VB project. You can simply copy the dll to a place where you want to store in on your system and include it as a reference to your project. ExtendedWebBrowser2.DLL 每 think of this as a webbrowser control + This project also comes with a rendered TabControl DLL that is the VS2005 Tab control only it looks far better than the standard control due to some additional rendering done in the DLL. This is especially true for its appearance on Vista. The RenderedTabControl.DLL can be added to your toolbox by: Main Menu | Tools | Choose Tool Box Items | Browse and adding the file. For this project the tabcontrol was dragged from the toolbox and all tabpages were deleted You can see this tabcontrol in the last illustration at: www.freewebs.com/reneecc wbTabPage.vb is a dynamic tabpage class containing the ExtendedEvents Webbrowser. This is not a complete webbrowsing class, instead it is a framework to get you started. The demo allows you to create multiple tabs, standard navigation is possible via an address bar and link clicking and there are forward and back controls. Webbrowser tabs are deleted by selecting a tab and right clicking for an exit context menu. I hope these are useful to you. The entire project with DLLs and classes are located at: http://www.mydatabus.com/public/XPSetup/z/TabbedWebBowser.zip Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - [Help] Convert ASCII To Hex That's because ASCII values are 8-bit numbers and only go up to 255. You will have to validate the input in the textbox to restrict the entry to within that range. Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Can you help me, with this C# task? I am a beginer at C#, and trying to create my own windows app. I am trying to retrive a (steam) game installation path using C#, I am told steam uses the regeristry to find this path, I have found code (C++, i think) to do this, but I am wondering can this be done using C# Here is the code I have been given:- ReadRegStr $R0 HKLM "software\valve\steam" installpath ReadRegStr $R1 HKCU "software\valve\steam" sourcemodinstallpath It uses registry keys to find the steam install path, so it will always be correct. My question is can this be done in C# (because im using VB Express for my programming). If so any ideas how Thanks in advance! Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - File transfer using serial communication(RS232) vs2005 c# hi, can any body suggest me good reference how to transfer files over serial comm using vs2005 C#.I am unable to understand what is event driven I/O and synchronous I/O which is better to me My task is just transfer files b/n two systems using serial ports. In file transfer application how to recognize End of file using C#. thanking you inadvance A.suneel Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - add new column quite not work. It did not catch any error, but the COLUMN3 also did not display any data. I don't know if this make any different but all other columns I got in my datagrid is from the orignal database, but the Column3 is not. It is an new column which I use the code to add it in. Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - login form Here's another way: Code Snippet string cString = "Persist Security Info=False;Integrated Security=SSPI;database=dbname;server=ServerName"; String sqlStmt = "Select * FROM [user] WHERE username='" + this.textBox1.Text + "' AND password='" + this.textBox2.Text + "' AND role = 'normal'"; SqlConnection sqlConn = new SqlConnection(cString); SqlCommand sqlCmd = new SqlCommand(sqlStmt, sqlConn); sqlCmd.Connection.Open(); SqlDataReader sqlReader = sqlCmd.ExecuteReader(CommandBehavior.CloseConnection); if (sqlReader.Read()) { do something } else { MessageBox.Show("Wrong Username/Password Combination"); } Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - READMe Inclusion? Hi, You would have to put in the full path to your filename and finish it with dot txt as above, alternatively see the reply by the Tall Dude below. Regards, S_DS Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Using a Database Help... I'm sorry, I misread your post. I did the following: OleDbParameter P1 = new OleDbParameter("@P1", OleDbType.VarChar); P1.Value = this.textBox2.Text; OleDbParameter P2 = new OleDbParameter("@P2", OleDbType.VarChar); P2.Value = this.textBox3.Text; OleDbParameter P3 = new OleDbParameter("@P3", OleDbType.VarChar); P3.Value = this.textBox4.Text; OleDbParameter P4 = new OleDbParameter("@P4", OleDbType.VarChar); P4.Value = this.textBox5.Text; OleDbParameter P5 = new OleDbParameter("@P5", OleDbType.VarChar); P5.Value = this.textBox6.Text; OleDbParameter P6 = new OleDbParameter("@P6", OleDbType.VarChar); P6.Value = this.textBox7.Text; OleDbParameter P7 = new OleDbParameter("@P7", OleDbType.VarChar); P7.Value = this.textBox8.Text; OleDbParameter P8 = new OleDbParameter("@P8", OleDbType.VarChar); P8.Value = this.textBox9.Text; OleDbParameter P9 = new OleDbParameter("@P9", OleDbType.VarChar); P9.Value = this.textBox10.Text; OleDbParameter P10 = new OleDbParameter("@P10", OleDbType.VarChar); P10.Value = this.textBox11.Text; OleDbParameter P11 = new OleDbParameter("@P11", OleDbType.VarChar); P11.Value = this.textBox12.Text; OleDbParameter P12 = new OleDbParameter("@P12", OleDbType.VarChar); P12.Value = this.textBox13.Text; OleDbParameter P13 = new OleDbParameter("@P13", OleDbType.VarChar); P13.Value = this.textBox14.Text; OleDbParameter P14 = new OleDbParameter("@P14", OleDbType.VarChar); P14.Value = this.textBox15.Text; OleDbParameter P15 = new OleDbParameter("@P15", OleDbType.VarChar); P15.Value = this.textBox16.Text; OleDbParameter P16 = new OleDbParameter("@P16", OleDbType.VarChar); P16.Value = this.textBox17.Text; OleDbParameter P17 = new OleDbParameter("@P17", OleDbType.VarChar); P17.Value = this.comboBox1.Text; OleDbParameter P0 = new OleDbParameter("@P0", OleDbType.VarChar); P0.Value = this.textBox1.Text; In actuallity, I'm a bit unsure of what your suggesting. It looks like, from your example that your assigning all the Parameters @P0, except for P17. Would you be able to clarify I don't quite follow. Thanks Again, Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Cryptography of packets! Hi, If the file is mostly text then you could try compressing the file down using the GZipStream class. The other option might be to read from the stream in blocks, but that will depend on the encryption method used and the mode of operation, also, for example you might need to read in two block to encrypt one. This is a very interesting problem. I'd be very interested in how you solved this. Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Encription Question Hi, No worries mate it's maybe sad to admit it but I do like cryptography. If each of your users have a user account then you can use ProtectedData as it's based on the password used to log into Windows by that user. So each password stored in the database can only be decrypted by the user account that created it. The only reason to use this approach is for key security. Using RijndealManaged, and any other symmetric encryption means you need to protect the key and thats fundamentally how systems become at risk. Encryption is only as good as the security measures used to protect the key. ProtectedData takes that risk away. Look into it. Yes the longer the key the better encryption but the longer it takes to encrypt. DES is crackable now, it's key size is 64 bits but its the fastest method around. RijndealManaged has a maximum key size of 256 bits which the highest key size of any method. It's safe as to crack it takes a million odd years with current technology. How you save the password depends on the field type in your database. If your storing bytes you don't need to convert to string, if the field is string then yes use that method. Here's the example, you'll notice a kind of symmetry between encryption and decryption. Note this example doesn't secure the key and isn't as robust as your code (doesn't check for null data). It does demonstrate how to specify the key size, in this example it selects the maximum size key possible. Code Snippet Module Module1 Dim rij As RijndaelManaged = RijndaelManaged.Create() Sub Main() 'generate the maximum key size rij.KeySize = rij.LegalKeySizes(rij.LegalKeySizes.Length - 1).MaxSize 'remember to save the key and iv so you can decrypt the data rij.GenerateKey() rij.GenerateIV() SaveKey() Dim original As String = "Hello World" Console.WriteLine( "Original: {0}" , original) Dim data As Byte () = Text.Encoding.ASCII.GetBytes(original) Console.WriteLine( "Plain: {0}" , BitConverter.ToString(data)) Dim cypher As Byte () = EncryptData(data) Console.WriteLine( "Cypher: {0}" , BitConverter.ToString(cypher)) LoadKey() data = DecryptData(cypher) Console.WriteLine( "Plain: {0}" , BitConverter.ToString(data)) original = Text.Encoding.ASCII.GetString(data) Console.WriteLine( "Original: {0}" , original) Console.ReadLine() End Sub Public Sub SaveKey() 'this is the tricky bit with encyption, protecting the key, this is not ideal Dim writer As New BinaryWriter( New FileStream( "secret.dat" , FileMode.Create)) writer.Write(rij.Key, 0, rij.Key.Length) writer.Write(rij.IV, 0, rij.IV.Length) writer.Close() End Sub Public Sub LoadKey() Dim writer As New BinaryReader( New FileStream( "secret.dat" , FileMode.Open)) writer.Read(rij.Key, 0, rij.Key.Length) writer.Read(rij.IV, 0, rij.IV.Length) writer.Close() End Sub Public Function EncryptData( ByVal data As Byte ()) As Byte () Dim memory As New MemoryStream() Dim crypto As New CryptoStream(memory, rij.CreateEncryptor, CryptoStreamMode.Write) crypto.Write(data, 0, data.Length) crypto.Close() Return memory.ToArray() End Function Public Function DecryptData( ByVal cypher As Byte ()) As Byte () Dim memory As New MemoryStream() Dim crypto As New CryptoStream(memory, rij.CreateDecryptor, CryptoStreamMode.Write) crypto.Write(cypher, 0, cypher.Length) crypto.Close() Return memory.ToArray() End Function End Module Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - How can I make an Install (setup.exe) file? Hi, Yes, the setup project in VS2005 is very customizable. To install your program on a specified directory, rightclick the project select view click FileSystem. In the Filesystem view, view the properties of the Applications folder. There is a Default Location property. just change the value to your specified directory. cheers, Paul June A. Domag Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - object reference? rly nice, ty :) Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Computed Column What made you want to do it in VB if you can do it in excel Excel has Visual Basic for Application built in, so you might be able to get everything done with excel alone. Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Effecient data management I dont know how to phrase my question because this area of programming is new to me. My problem is this. I will have a low level mouse hook capturing mouse events. This data capture needs to be able to run for a reasonable length of indefinate time. What is the best method to record these events Directly into a file as each event occurs Into some kind of memory structure The recording of data, should have next to 0 impact on system performance, and should not make the hard drive access light flash constantly. Any help would be awesome! Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Creating Text files Hi ! I am getting 10 different values from my function and want to save these values in a .txt file. Each value must be in the same row.e.g; row1 row2 value1 value1 value2 ............ any opinion sample code will be usefull. Thanks for all. Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - pasting capability in textboxes seems variable, any ideas? I am having the same problem. The textboxes are on a tabpage and i have a menustrip in the form. But I am using a C# Windows Forms application built with Visual Studio C# 2005. If I delete the clipboard menu items in the Edit menu (like Copy, Cut and Paste) then the associated shortcut keys suddenly start working again. This article was helpful: http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=175001&SiteID=1 . Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Programmatically change PrinterDialog or PageSetupDialog PaperSize? The only way I have been able to change the PaperSize displayed in the PrinterDialog or PageSetupDialog controls is to display the control and have the user change the Size. In code I have tried to change the PaperSize of the Document and both controls. When I display a control, the PaperSize is not changed. How can I change the displayed PaperSize Edit: In the PrintPreviewControl, the PaperSize changes. That is, if I change the PaperSize from "Letter" to "Legal" the page displayed in the PrintPreviewControl changes, but the PaperSize displayed in the PageSetupDialog control stays at "Letter". Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Exporting from a SQL server database Hi. I am writing a program where I import data into a database with a System. Web.UI.WebControls.SqlDataSource object, using its Insert method. Like this... Dim DataBaseConnectionString As New Web.UI.WebControls.SqlDataSource() DataBaseConnectionString.ConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;User Instance=True" DataBaseConnectionString.InsertCommandType = Web.UI.WebControls.SqlDataSourceCommandType.Text DataBaseConnectionString.InsertCommand = "BULK INSERT TBLMain FROM '/file.csv' WITH (FIRSTROW = 2, FIELDTERMINATOR = ',', ROWTERMINATOR = '\n')" DataBaseConnectionString.InsertParameters.Add( "csvdatapath" , OFDCSV.FileName.ToString()) Try DataBaseConnectionString.Insert() Catch ex As Exception I have been able to get this working fine. I need to export to (ideally) a .CSV or a .XLS. I have tried to use the: Code Snippet (SQL) COPY TO '\results.csv' CSV Is it possible to use a simmilar method of interacting with the database through code to perform this Thanks Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Far pointer on VC++ Express 5.0 Hi I am a newbie and I wonder if VC++ 5.0 Express supports using far an near pointer as with borland compiler. If not is there another way to access a memory address. I wanted to make a program that read the SMBIOS (address 000F0000) structure entries Any Idea please Thanks Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Database without wizards Hello people. Please, can anyone point me any tutorial / walkthrough / references on how to use vb 2005 Express in conjuction with SQL Server Express without the use of any wizard What I mean is: I'm creating a windows app that access data on a remote SQL Server Express and would like to control all the data access by myself. Why I do want do do this, you may be asking... The short answer is that the application I'm developing have a high end user interface that do not behaves like the functionality of a data grid or even the navigating buttons that binded controls have. I'm not developing and email client, but you can imagine something like Outlook and Exchange Server pair. You simply can't develop and Outlook client visual appeal with the result produced using the VB 2005 Express wizards. The app can't have the forward/backward navigating buttons and will continuously check the server for changes in the database in order to modify the contents of the user interface. I also don't need a deep and very well explained tutorial. I just need the concepts of creating a TableAdapter/DataAdapter, link these to a DataSet and be able to handle the data (insert, update and delete), if it can also give some info about transactions iy wold be great! With the concepts in hand I'm sure I can dig the rest for myself. I've already found a lot of things in google and msdn, but I'm still having some problems in order to wrap up everything. Any help and/or suggestions are very very welcomed. Tanks a lot in advance for all your time and attention. Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Specified cast is not valid. BrunoYu Thanks for your reply... I didn't get namespace of CrystalDecisions.Enterprise but i have CrystalDecisions.ReportSource. I tried it but didnt get class of ReportSource in that namespace. waiting for reply... Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - how to Calls Calculate ? Hi Thanks alot for reply its a part of what I want in addition to how can i manage all calls from my program the repectionist will dial the number then redirect the call to guest`s telephone in his room anyway you can help me about that part which you talked about, after that we may work about coding the other part Thank you very much Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Can't Import STDOLE2.TLB in Visual C# Express (running on Vista) I'm currently developing a Windows application and I wanted to use some OCX controls compiled for VB6. I installed the VB6 SP5 runtime, registered the OCXs (using admin permissions), and tested successfully the compiled demo programs for those ocxs. In VC#, I added the controls to the toolbox and as soon as I drop a control on the form, VC# tells me the ActiveX control cannot be be imported. In the Solution Explorer panel, the references to the OCX interop assemblies as well as an assembly called STDOLE, appear with an exclamation mark. I tried by many ways to import the STDOLE2.TLB to the project, and VC# adds it to the solution explorer with a exclamation mark. I'm using Windows Vista and VC# Express SP1. Any ideas Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Move to cell in previous row? I entered the codes exactly as you show them and the selection stays the same. The only other thing is that in the button click event code: e.handled = true The tip tell me that handled is not a member of System.EventArgs i appreciate you helping me since i have only been using VB2005 for about a week. I started programming using VB for application in excel. Jeff Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - DateTime throws ArgumentOutOfRangeException I am having trouble with DateTime throwing the out of range exception. The code works fine on my system but has difficulty on mostly non-USA users systems. The offending code is: Code Snippet System::DateTime dtRef = System::DateTime(nYear, 01, 01); System::DateTime dtDate = dtRef.AddDays(nDayofYear - 1); szDate = dtDate.ToString( "yyyy/MM/dd" ); The only thing I can come up with is that the culture/region settings of non-USA users present the date as dd/mm/yyyy normally. When I call the AddDays method days are in effect being added to the month instead of day causing the month to be out of range throwing the exception. Any ideas of what is happening in the code Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Need some Help please new to C++ I have this book to learn C++ and i've tried this small code on two different compilers (Visual C++ 2005 express edition) and Bloodshed (a freeware compiler) #include <iostream> main (void) { std::cout << "Hello people" << std::endl; return 0; } It does not work on Visual C++ but it works on the other compiler, I get an error on Visual C++ stating "Unable to start program 'c:\users\carl\documents\visual studio 2005\ iuyig\debug\y\iuyig.exe'. The system cannot find the path specified." Now First i just made a new file (just a .cpp file) and it wouldn't allow me to debug with ctrl f5 or just f5, until i added a project, which i then did by adding a win32 console application. Now why does this error occur and won't open the msdos window with my little text box Thanks Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Opening a File Browser Hello, I am creating a Email station which will allow you to send emails to an email address along with attachments. However i have ran across a slight problem when looking for an attachment; I dont know how to open the file browser (the windows one) that will allow the user to look for files and just add them. I have this code but it only opens explorer which only opens my documents and obviously wont let me add files, just view them and use them: Code Snippet Private Sub btnBrowse_Click( ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnBrowse.Click Shell( "explorer.exe" , AppWinStyle.NormalFocus, True , -1) End Sub Thanks, Mitchell Wheeler Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - Case Sensitivity Problem... Private Sub Command1_Click() Dim ime As Variant Dim sifra As Variant Dim FileName As String Text = Text2.Text Open "c:\sifra.txt" For Input As # Input #1, ime, sifra Do Until ime = Text Input #1, ime, sifra Loop Close Text1.Text = sifra End Sub This Is my simple program that I am having a problem with. What I am trying to do is to search a text file. I want to type a text in a text box, and my program should find that word and print line where that word is. My problem is in case sensitivity. How can I ignore case sensitivity and when I type word in textbox, program find that word In text file no meter of case property Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions
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    - how to generate unique 8 digit number After a second thought, you must reduce the polynomial to 26 bit because it is important that all bits are included in the result to guarantee unique numbers. 2**26-1 = 67108863. This is the biggest number you can generate. If you need to get closer to 99999999, you can combine more polynomials like (2**X - 1)(2**Y - 1) etc., but then it of course gets a little tricky. With X = 25 and Y = 2, the length becomes 100663293. This is quite close, but you need to throw 0.7% of the numbers away and take the next one. With 3 or more polynomials you can get even closer. The CRC polynomial actually cryptize (probably wrong english word - I hope you understand - what is it called when you make something cryptic ) a counter. The easiest way to generate random, unique numbers would of course be just to make a simple counter and then cryptize the result, but as far as I know, most standard methods in .NET like DES etc. use a 64 bit or 128 bit block, so all these bits must be included in the result and this is far more than 8 digits. Therefore, you need to make your own cryptizing and CRC is the easiest way. Sorry, but I don't understand what you mean with: " what is the least length i can generate unique numbers from it ". The random number generation of a 26-bit maximum length polynomial will generate random numbers in the range 1 to 67108863. As with all CRC polynomials, you cannot generate the number 0. Tag: Visual C++ Express Edition Problem with System::drawing::point allocation... Visual Studio Express Editions

Cunctator

Hi, i'va a little strange proble

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m during compiling my visual c++ express project...
I'm trying to use the e->graphic->drawlines(pen,point[]) function.
I used to allocate an array old way, i explain: if i want to allocate an array of Point, i write:

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Point MyPointArray[100];

or, if i would to create a pointer toro an array, i should write:

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Point *MyPointArrayPt; MyPointArrayPt = new Point[100];

Now, i learned i've to write:

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Point ^MyPointArrayPt; MyPointArrayPt = gcnew Point[100];

then, use the

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e->Graphics->DrawLines(MyPen,MyPointArrayPt)

func, but it still don't works, and get to me the "error C2728 - 'type' : a native array cannot contain this managed type"
So i've surfed a little the web and discovered the "new way" in array declaration:

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array< Point^,1>^ MyPointArrayPt = gcnew array< Point^,1>(100);

And, surprise, it works... but if i try to use the

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e->Graphics->DrawLines(MyPen,MyPointArrayPt);

i get the

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error C2664: 'void System::Drawing::Graphics::DrawLines(System::Drawing::Pen ^,cli::array<Type,dimension> ^)': impossible to converte parameter 2 from'cli::array<Type,dimension> ^' to 'cli::array<Type,dimension> ^'.

Now, is particular that it can't converts array<Type,dimension> ^ to array<Type,dimension> ^, because they are the same thing.
Can someone tell me why and how to solve this problem
Tnx to all in Microsoft and to all who surf this forum anyway.

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Re: Visual C++ Express Edition Problem with System::drawing::point allocation...

nobugz

System:: Drawing:: Point is a "struct", not a class. You don't use the "hat" with a valuetype. The correct usage is:

array<Point>^ MyPointArrayPt = gcnew array<Point>(100);
...
e->Graphics->DrawLines(Pens:: Black, MyPointArrayPt);

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Re: Visual C++ Express Edition Problem with System::drawing::point allocation...

Cunctator

THANKS A LOT MAN!

In the world shold be much more people like you!!

Thanks!!!!

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