Re: How do you refresh/update a parent dialog when Modal child dialog is active - C / C++ / MFC Discussion Boards

Re: About the question of "CreateProcess" !

zxw284425-Feb-09 2:17

25-Feb-09 2:17

As only as open the IE by the CreateProcess call, the dwProcessId member is not correctly, but open the other program is correctly!! Confused | :confused:

OS is Vista Basic, the version is 7.0 of IE.

Re: About the question of "CreateProcess" !

CPallini25-Feb-09 2:33

CPallini

25-Feb-09 2:33

I have WinXP.
Could you find, using Spy++, the process corrensponding to dwProcessId return value?
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: About the question of "CreateProcess" !

zxw28441-Mar-09 15:00

zxw2844

1-Mar-09 15:00

I test it in 2 PC, OS and IE are same.(Vista OS , IE 7.0)

In my PC is fail, but in other PC is success.

why ....? Confused | :confused:

problem in adding node in registry

sonali996024-Feb-09 18:42

sonali9960

24-Feb-09 18:42

i have created the registry editor in wince when i am going to add new registry it gets added in registry and show in treeview but problem is that when i am going to add child on unexpanded registry or lower most child ie which is not having any child the registry key added by twice means it show tow key with same name but when restart exe it shows only one key Kindly help me

Following is the code

/**********************************************************************************
Module Name:
    main.c

 Start module, main dialog hook and about dialog hook
  WinMain
  Main_DialogHook
    Main_OnInitDialog 
    Main_OnCommand 
    Main_OnSize 
    Main_OnNotify

  aboutDialogHook 


**********************************************************************************/
#include <windows.h>
#include <windowsx.h>
#include <commctrl.h>
#include <string.h>
#include <stdlib.h>
#include <tchar.h>

#include "global.h"
#include "regtree.h"
#include "reglist.h"
#include "find.h"
#include "resource.h"
#include "winuser.h"
#include "tree.h"
//#define IDR_ACCELERATOR  14
//#define IDD_DIALOG_MAIN  15
//#define  IDC_TREE   16 
//#define   IDB_TREE_SYMBOLS 17
//#define  IDC_LIST 18
//#define  IDB_LIST_SYMBOLS 19
//#define IDI_ICON_MAIN 20
//#define  ID_MENUITEM_EXIT 21
//#define ID_MENUITEM_DEL 22
//#define ID_MENUITEM_MODIFY 23
//#define ID_MENUITEM_FIND 24
//#define ID_MENUITEM_FINDNEXT 25
//#define ID_MENUITEM_ABOUT 26
//#define IDD_DIALOG_ABOUT  27
//#define IDC_PATH 28
//#define IDR_MENU_MAIN 987
#define WXUSINGDLL
//-----------------------------------------------------------------
		HANDLE   hInst;
		HANDLE      hAccel;
		HWND		h_wnd;
		HWND        hDlg;
		HWND h_wndDlg;
		HWND        hWndCB;   // Command Bar window
		HWND        hListWnd; // List Window
		HWND        hTreeWnd; // Tree Window
		HIMAGELIST  hTreeImages;
		HIMAGELIST  hListImages;
		TCHAR	  sz_subKey [MAX_PATH*8];
		HKEY    h_rootKey; 
		RECT rect;
		LPTV_INSERTSTRUCT lpis;
		HTREEITEM   nTreeRootItem; //CRegRootItems rootItems;

		TCHAR	  szCurrSubKey [MAX_PATH*8]; 
		HKEY    hCurrRootKey;   
		HKEY hKeyN2; 
		DWORD dwDisp;
		int  rc;
		PBYTE pBuff;
		DWORD dwValType, dwDSize;
		PBYTE  pbData;
		DWORD dwRegVal = 0x1234;
		
		
		HTREEITEM h_item ;
//---Messages handles
BOOL        Main_OnInitDialog (HWND hwnd, HWND h_wndFocus, LPARAM l_param);
//void WINAPI Main_OnDestroy    (HWND hwnd);
void        Main_OnCommand    (HWND h_wnd, int n_id, HWND h_wndCtl, UINT n_codeNotify);
int         Main_OnSize       (HWND h_wnd, WPARAM fw_sizeType, int n_width, int n_height);
LRESULT     Main_OnNotify     (HWND hwnd, int idCtl, LPNMHDR pnmh);
INT_PTR CALLBACK _addkey (HWND h_wndAdd, UINT u_msg, WPARAM w_param, LPARAM l_param);
INT_PTR CALLBACK _string(HWND h_String, UINT u_msg, WPARAM w_param, LPARAM l_param);
INT_PTR CALLBACK _about(HWND h_Modify, UINT u_msg, WPARAM w_param, LPARAM l_param);

static BOOL WINAPI _mainDialogHook  (HWND h_wndDlg, UINT u_msg, WPARAM w_param, LPARAM l_param);
static BOOL WINAPI _aboutDialogHook (HWND h_wndDlg, UINT u_msg, WPARAM w_param, LPARAM l_param);
static BOOLEAN isParent (HKEY h_parent, TCHAR * psz_key);

//*****************************************************************

int WINAPI WinMain (HINSTANCE h_instance, HINSTANCE h_prevInstance,
                    #ifdef _WIN32_WCE
                      LPWSTR lp_cmdLine, 
                    #else
                      LPSTR lp_cmdLine, 
                    #endif
                    int n_cmdShow)
{
  HWND  h_wnd;
  MSG   msg;

  UNREFERENCED_PARAMETER (n_cmdShow);
  UNREFERENCED_PARAMETER (lp_cmdLine);
  UNREFERENCED_PARAMETER (h_prevInstance);

  hInst = h_instance;
  
  InitCommonControls ();
  hAccel = LoadAccelerators(hInst, MAKEINTRESOURCE(IDR_ACCELERATOR));

  h_wnd = CreateDialog ((HANDLE)h_instance, MAKEINTRESOURCE(IDD_DIALOG_MAIN), NULL, (DLGPROC)_mainDialogHook);
  if (h_wnd == NULL)
    MessageBox (NULL, TEXT("Can't create main window"), TEXT("Error"), MB_OK|MB_ICONSTOP);

  while (GetMessage(&msg, NULL, 0, 0))
  {
    if (!TranslateAccelerator(h_wnd, hAccel, &msg))
    {
      TranslateMessage((LPMSG)&msg);
      DispatchMessage((LPMSG)&msg);
    }
  }
  return 0;
}

//*****************************************************************
static BOOL WINAPI _mainDialogHook ( HWND h_wndDlg, UINT u_msg, WPARAM w_param, LPARAM l_param)
{
  switch (u_msg)
  {
		HANDLE_MESS (h_wndDlg, WM_INITDIALOG, w_param, l_param, Main_OnInitDialog); 
		break;

		//    HANDLE_MESS (h_wndDlg, WM_DESTROY   , w_param, l_param, Main_OnDestroy);
		break;
		HANDLE_MESS (h_wndDlg, WM_NOTIFY    , w_param, l_param, Main_OnNotify); 
		break;
		HANDLE_MESS (h_wndDlg, WM_COMMAND   , w_param, l_param, Main_OnCommand); 
		break;

		#ifdef _WIN32_WCE
		  HANDLE_MESS (h_wndDlg, WM_SIZE    , w_param, l_param, Main_OnSize);
		#endif
 
  case WM_QUIT:
	  {
			DefWindowProc(h_wndDlg,u_msg,w_param, l_param);
	  }
	  //DestroyWindow(h_wndDlg);
  }
  return 0;
}

//********************************************************************************
//  PARAMETERS:
//      hwnd        - handle of the window receiving the notification
//      h_wndFocus  - handle of control to receive focus
//      l_param     - initialization parameter 
BOOL Main_OnInitDialog (HWND h_wndDlg, HWND h_wndFocus, LPARAM l_param)
{
  LV_COLUMN col;
  HICON     h_icon;
  int       idx;
  #ifdef _WIN32_WCE
    TBBUTTON buttons[] = 
    {
      {0,                         0, TBSTATE_ENABLED, TBSTYLE_SEP,    0, 0, 0, -1},
      {STD_FIND  , ID_MENUITEM_FIND, TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0, 0, -1},
      {0,                         0, TBSTATE_ENABLED, TBSTYLE_SEP,    0, 0, 0, -1},
      {STD_DELETE, ID_MENUITEM_DEL , TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0, 0, -1}
    };
    //TCHAR * psz_toolTips[] = {TEXT("Find key or value"),
    //                          TEXT("Delete key or value")};
  #endif

  SendMessage (h_wndDlg, WM_SETTEXT, 0, (LPARAM)(TEXT("Registry Editor")));

  #ifdef _WIN32_WCE
	  /////////////////////////////////////////////////////////////////////////
    // Create Menu and command bar
    hWndCB = CommandBar_Create (hInst, h_wndDlg, 1);
    if (hWndCB == NULL) 
      MessageBox (h_wndDlg, TEXT("Can't create menu: step 1"), TEXT("Error"), MB_OK|MB_ICONSTOP);

    if (CommandBar_AddBitmap (hWndCB, HINST_COMMCTRL, IDB_STD_SMALL_COLOR, 15, 16, 16)==-1)
      MessageBox (h_wndDlg, TEXT("Can't create menu: step 2"), TEXT("Error"), MB_OK|MB_ICONSTOP);

    //CommandBar_AddToolTips (hWndCB, 2, psz_toolTips);

    if (CommandBar_AddButtons (hWndCB, sizeof(buttons)/sizeof(TBBUTTON),buttons) == FALSE)
      MessageBox (h_wndDlg, TEXT("Can't create menu: step 3"), TEXT("Error"), MB_OK|MB_ICONSTOP);

    if (CommandBar_InsertMenubar (hWndCB, hInst, IDR_MENU_MAIN, 0)==FALSE)
      MessageBox (h_wndDlg, TEXT("Can't create menu: step 4"), TEXT("Error"), MB_OK|MB_ICONSTOP);
  #endif
      
  //////////////////////////////////////////////////////////////////////
  hTreeWnd = GetDlgItem(h_wndDlg, IDC_TREE);

  //////////////////////////////////////////////////////////////////////
  // Create the image list for the item pictures
	if ((hTreeImages = ImageList_Create(16, 16, ILC_COLOR4/*ILC_MASK*/, 3, 0)) != NULL)
  {
    HBITMAP h_bmpTree = LoadBitmap (hInst, MAKEINTRESOURCE(IDB_TREE_SYMBOLS));
    //idx = ImageList_AddMasked (hTreeImages, h_bmpTree, RGB(0,255,0));
    idx = ImageList_Add (hTreeImages, h_bmpTree, NULL);

    // Clean up the GDI objects
    DeleteObject (h_bmpTree);

    #ifdef __DEBUG__
      idx = ImageList_GetImageCount(hTreeImages);
    #endif

    //--- Associate the image list with the treeview control
	  TreeView_SetImageList (hTreeWnd, hTreeImages, TVSIL_NORMAL);
  }

  //--- Load registry to the tree
  nTreeRootItem = RegTree_LoadRoot (hTreeWnd);
  TreeView_Expand (hTreeWnd, nTreeRootItem, TVE_EXPAND);

  //////////////////////////////////////////////////////////////////////
  //         Init list view
	  hListWnd = GetDlgItem (h_wndDlg, IDC_LIST);

	  col.mask = LVCF_TEXT|LVCF_WIDTH|LVCF_SUBITEM; 
	  col.cx = 100; 
	  col.pszText = TEXT ("Name"); 
	  col.iSubItem = 0;
	  ListView_InsertColumn (hListWnd, 0, &col);

	  col.pszText = TEXT ("Data"); 
	  col.cx = 250; 
	  col.iSubItem = 1;
	  ListView_InsertColumn (hListWnd, 1, &col);

  // Create the image list for the item pictures
	if ((hListImages = ImageList_Create(16, 16, ILC_COLOR4/*ILC_MASK*/, 4, 0)) != NULL)
		  {

			HBITMAP h_bmpList = LoadBitmap (hInst, MAKEINTRESOURCE(IDB_LIST_SYMBOLS));
			idx = ImageList_Add (hListImages, h_bmpList, NULL);

			// Clean up the GDI objects
			DeleteObject (h_bmpList);

			ListView_SetImageList (hListWnd, hListImages, LVSIL_SMALL);
		  }

  //----Set Icon to the Window -----------------------------------------
		  h_icon = (HICON)LoadImage (hInst, MAKEINTRESOURCE(IDI_ICON_MAIN),
									 IMAGE_ICON, 16, 16, LR_DEFAULTCOLOR);
		  PostMessage  (h_wndDlg, WM_SETICON, (WPARAM)FALSE, (LPARAM)h_icon);
		  DeleteObject ((HGDIOBJ)h_icon);

  //--- Adjust window size and position --------------------------------
  {
    #ifndef _WIN32_WCE
      ShowWindow (h_wndDlg, SW_MAXIMIZE);
    #else
      int n_width = GetSystemMetrics (SM_CXSCREEN);
      int n_height = GetSystemMetrics (SM_CYSCREEN);
      POINT point = {n_width - 1, n_height - 1};
      HWND h_taskBar = WindowFromPoint (point);

      
      GetWindowRect (h_taskBar, &rect);

	    SetWindowPos (h_wndDlg, HWND_TOP, 0, 0, n_width, n_height-(rect.bottom-rect.top)+1, SWP_SHOWWINDOW);
    #endif
  }
	return 0;
}

//****************************************************************************
//  FUNCTION:   Main_OnDestroy(HWND)
//
//  PURPOSE:    Handle any clean up and post the quit message to exit the
//              message loop.
//  PARAMETERS:
//      hwnd    - handle of the window receiving this message
//  RETURN VALUE:
//      none
//void WINAPI Main_OnDestroy (HWND hwnd)
//{
//// Indicate that the message loop should exit since the main window
//  // is being destroyed.
//	if (hListImages)
//    ImageList_Destroy (hListImages);
//  if (hTreeImages)
//    ImageList_Destroy (hTreeImages);
//  #ifdef _WIN32_WCE
//    CommandBar_Destroy (hWndCB);
//  #endif
//
//  
//  PostQuitMessage(0);
//
//}

//********************************************************************************
//  PARAMETERS:
//    fwSizeType = wParam;          - resizing flag 
//    nWidth     = LOWORD(lParam);  - width of client area 
//    nHeight    = HIWORD(lParam);  - height of client area 
int Main_OnSize (HWND h_wndDlg, WPARAM fw_sizeType, int n_width, int n_height)
{
  #ifdef _WIN32_WCE
    HWND h_wndItem;
    RECT rect;
    int  n_topOffset = 0;
    int  n_bottomOffset = 0;
  
    GetWindowRect (hWndCB, &rect);
    n_topOffset = rect.bottom-rect.top;
    SetWindowPos (hWndCB, h_wndDlg, 0, 0, n_width, n_topOffset, SWP_NOZORDER|SWP_NOMOVE);
    CommandBar_AddAdornments (hWndCB, 0, 0);

    h_wndItem = GetDlgItem(h_wndDlg, IDC_PATH);
    GetWindowRect (h_wndItem, &rect);
    n_bottomOffset = rect.bottom-rect.top;

    SetWindowPos (h_wndItem, h_wndDlg, 0, n_height-n_bottomOffset, 
                                      n_width, n_bottomOffset, SWP_NOZORDER);

    GetWindowRect (hTreeWnd, &rect);
    SetWindowPos (hTreeWnd, h_wndDlg, 
                            0, n_topOffset+1, 
                            rect.right-rect.left, 
                            n_height - n_bottomOffset - n_topOffset, SWP_NOZORDER);//|SWP_NOMOVE);

    SetWindowPos (hListWnd, h_wndDlg, 
                            rect.right-rect.left+3, n_topOffset+1, 
                            n_width-(rect.right-rect.left)-5, 
                            n_height - n_bottomOffset - n_topOffset, SWP_NOZORDER);//|SWP_NOMOVE);
  #endif

  return 0;
}

//********************************************************************************
//  FUNCTION:   Main_OnCommand(HWND, int, HWND, UINT)
//
//  PURPOSE:    Handles the WM_COMMAND messages for the Win32Generic window
//              class
//  PARAMETERS:
//      hwnd        - handle of the window receiving the message
//      id          - identifier of the command
//      hwndCtl     - handle of the control sending the message)
//      codeNotify  - specifies the notification code if the message is from
//                    a control
//  RETURN VALUE:
//      none
//  COMMENTS:
//      codeNotify is 1 if from an accelerator, 0 if from a menu.
//      If the message is not from a control hwndCtl is NULL.
void Main_OnCommand (HWND h_wnd, int n_id, HWND h_wndCtl, UINT n_codeNotify)
{
	
  switch (n_id) //process pressing of buttons and combobox
  {
   case IDCANCEL: 
	case ID_MENUITEM_EXIT:
	//  EndDialog(hwnd ,0);
     	EndDialog (h_wnd, 0);
	//  EndDialog(h_wndCtl);
	//  ImageList_Destroy (hListImages);
	//  ImageList_Destroy (hTreeImages);
		DestroyMenu(NULL);
		DestroyIcon(NULL);
		DestroyAcceleratorTable(NULL);
		CommandBar_Destroy (hWndCB);
		DestroyWindow (h_wnd);
	    DestroyWindow(NULL);
    break;

    case ID_MENUITEM_DEL: case ID_EDIT_MODIFY:
    {
      HWND h_foc = GetFocus();
      if (h_foc == hListWnd || h_foc == hTreeWnd)
      {
        if (n_id == ID_MENUITEM_DEL)
          SendMessage (h_foc, WM_KEYDOWN, VK_DELETE, 0);
        else if (h_foc == hListWnd)
          RegList_EditSelectedValue (hListWnd, hCurrRootKey, szCurrSubKey);
      }
    }
    break;

    case ID_MENUITEM_FIND:
  /*  case ID_MENUITEM_FINDNEXT:
			{
			  HWND h_foc = GetFocus();
			  Find_Run (h_foc, (n_id == ID_MENUITEM_FINDNEXT)?TRUE:FALSE);
			}
    break;*/

    case ID_HELP_REFRESH:
		
     DialogBox (hInst, MAKEINTRESOURCEW(IDD_DIALOG_ABOUT),
                   h_wnd, _about);
    break;
	case ID_MENUITEM_CREATE_KEY:
		{
			/*TV_INSERTSTRUCT  tvins;	
				*/
            
		DialogBox(hInst, MAKEINTRESOURCEW(IDD_ADD_KEY), h_wnd,_addkey);
		

					//(HTREEITEM) SendMessage (hwndFrom, TVM_INSERTITEM, 0, (LPARAM)(LPTV_INSERTSTRUCT) &tvins);			*/
					/*UpdateWindow(hTreeImages);
					UpdateWindow(h_wnd);
					UpdateWindow(hTreeWnd);
					UpdateWindow(h_wndDlg);
					UpdateWindow(h_wndCtl);
					UpdateWindow(hAccel);*/


					//SendMessage(hTreeWnd,TVM_INSERTITEM, 0,&lpis);

		}
		
		break;
	case ID_MENUITEM_CREATE_STRING:
		{
		
				DialogBox(hInst, MAKEINTRESOURCEW(IDD_STRING_NEW), h_wnd,_string);
							  //rc = RegOpenKeyEx (HKEY_LOCAL_MACHINE, 
     //                                                   TEXT ("Software\\n2"), 0,
     //                                                   KEY_SET_VALUE, &hKeyN2);
     //               if(rc != ERROR_SUCCESS)
     //               {
     //                   MessageBox (NULL, TEXT("RegOpenKeyEx Failed"), 
     //                                           TEXT("Key n2 not opened"), MB_OK);
     //                   return FALSE; 
     //                }
     //               //set a name and value under the open key 
     //               rc = RegSetValueEx (hKeyN2, TEXT("OneDWORD"), 0, 
     //                                                  REG_DWORD , (LPBYTE)&dwRegVal,  
     //                                                  sizeof(dwRegVal));
     //               if (rc != ERROR_SUCCESS)
     //                {
     //                   MessageBox (NULL, TEXT("RegSetValueEx Failed"), 
     //                                          TEXT("Couldn't delete value"), MB_OK);
     //                }
     //               else
     //               {
     //                   MessageBox (NULL, TEXT("Value OneDWORD Set"), 
     //                                          TEXT("Single DWORD Registered"), MB_OK);
     //               }
     //               //always clean up after ourselves
     //               RegCloseKey( hKeyN2 );
		}
		break;
	case IDD_REFRESH:
		

		break;
	
	
	
  }
}

//********************************************************************************
//  FUNCTION:   Main_OnNotify(HWND, int, LPNMHDR)  WM_NOTIFY
//
//  PURPOSE:    Handles any notifications the treeview control spits out.
//
//  PARAMETERS:
//      hwnd    - handle of the window receiving the notification
//      idCtl   - identifies the control sending the notification
//      pnmh    - points to a NMHDR struct with more inforamation regarding the
//                notification
//  RETURN VALUE:
//      (LRESULT) Dependant on the specific notification.  See Below.
//  COMMENTS:
LRESULT Main_OnNotify(HWND h_wnd, int idCtl, LPNMHDR pnmh)
{
  static  char  bIs_TVN_ITEMEXPANDING = FALSE;
  static  char  bIs_TVN_SELCHANGED = FALSE;



	switch (pnmh->code)
	{	
    // A node is expanding or collapsing.  We need to update the folder
    // images to reflect either a closed or open folder depending on it's
    // new state.
		case TVN_ITEMEXPANDING:
		{
		 LPNM_TREEVIEW pnmtv;

      if (bIs_TVN_ITEMEXPANDING == TRUE)
        return 0;
      
			// cast the NMHDR into a treeview notify structure
			pnmtv = (LPNM_TREEVIEW) pnmh;

      if (pnmtv->itemNew.hItem == nTreeRootItem) 
        return 0;
      //-------------------------------------------------

      bIs_TVN_ITEMEXPANDING = TRUE;
    
			if (pnmtv->action == TVE_COLLAPSE)
			{
				// Retrieve the image from the current item
				pnmtv->itemNew.mask = TVIF_IMAGE | TVIF_SELECTEDIMAGE;
				TreeView_GetItem (pnmh->hwndFrom, &(pnmtv->itemNew));

				// Set the item's image to the closed folder
				pnmtv->itemNew.iImage = nIMAGE_CLOSED;
				pnmtv->itemNew.iSelectedImage = nIMAGE_CLOSED;
           	
				TreeView_SetItem (pnmh->hwndFrom, &(pnmtv->itemNew));
			}
			else
			{
				// Retrieve the image from the current item
				pnmtv->itemNew.mask = TVIF_IMAGE | TVIF_SELECTEDIMAGE;
				TreeView_GetItem (pnmh->hwndFrom, &(pnmtv->itemNew));

				// Set the item's image to the closed folder
				pnmtv->itemNew.iImage = nIMAGE_OPEN;
				pnmtv->itemNew.iSelectedImage = nIMAGE_OPEN;
				TreeView_SetItem (pnmh->hwndFrom, &(pnmtv->itemNew));

        if ( ! (pnmtv->itemNew.state & TVIS_EXPANDEDONCE) )
        {
          // We need to fill in the subdirectory just expanded
          SetCursor (LoadCursor(NULL, IDC_WAIT));
			RegTree_BuildKey (pnmtv->hdr.hwndFrom, pnmtv->itemNew, &h_rootKey, sz_subKey);
			RegTree_LoadKey  (pnmtv->hdr.hwndFrom, (HTREEITEM)pnmtv->itemNew.hItem, h_rootKey, sz_subKey);
          SetCursor (NULL);
        }
			}
      bIs_TVN_ITEMEXPANDING = FALSE;
			return 0;	// return value is ignored
		}
    break;

    case TVN_SELCHANGED:
    {
			// cast the NMHDR into a treeview notify structure
			LPNM_TREEVIEW pnmtv = (LPNM_TREEVIEW) pnmh;

      if (pnmtv->itemNew.hItem == pnmtv->itemOld.hItem)
        return 0;

      if (bIs_TVN_SELCHANGED == TRUE)
        return 0;
      
      bIs_TVN_SELCHANGED = TRUE;

		SetCursor (LoadCursor(NULL, IDC_WAIT));
		RegTree_BuildKey (pnmtv->hdr.hwndFrom, pnmtv->itemNew, &h_rootKey, sz_subKey);
		RegList_LoadKey (hListWnd, h_rootKey, sz_subKey);
		lstrcpy (szCurrSubKey, sz_subKey);
		hCurrRootKey = h_rootKey;
		SetCursor (NULL);

      RegTree_GetRootPath (h_rootKey, sz_subKey);
      if (h_rootKey)
        lstrcat (sz_subKey, szCurrSubKey);

      SetDlgItemText (h_wnd, IDC_PATH, sz_subKey);

      bIs_TVN_SELCHANGED = FALSE;
    }
    break;

    case TVN_KEYDOWN:
    {
      TV_KEYDOWN * pnkd = (TV_KEYDOWN FAR *) pnmh;
      if (pnkd->wVKey == VK_DELETE)
      {
        HTREEITEM h_item = TreeView_GetSelection (pnmh->hwndFrom);

        if (h_item == NULL)
          break;
        
        if (MessageBox (h_wnd, TEXT("Are you SURE you want to delete this KEY?"), 
                               TEXT("Deleting"), MB_YESNO|MB_ICONQUESTION)==IDYES)
        {
          if (RegDeleteKey (hCurrRootKey, szCurrSubKey) != ERROR_SUCCESS)
          {
            MessageBox (h_wnd, TEXT("Can't delete the KEY."), 
                               TEXT("Error"), MB_OK|MB_ICONEXCLAMATION);
            break;
          }
          TreeView_DeleteItem (pnmh->hwndFrom, h_item);
        }
      }
    }
    break;

    case LVN_KEYDOWN:
    {  
      LV_KEYDOWN * pnkd = (LV_KEYDOWN FAR *) pnmh;

      #if 0 //DEBUG
        TCHAR ppp [80];
        wsprintf (ppp, TEXT("0x%X"), pnkd->wVKey);
        MessageBox (h_wnd, ppp, TEXT("Virtual Key"), MB_OK);
      #endif

      if (pnkd->wVKey == VK_DELETE)
      {
        UINT is_selected = ListView_GetSelectedCount (pnmh->hwndFrom);
        if (is_selected)
        {
          int n_item = ListView_GetNextItem (pnmh->hwndFrom, -1, LVNI_ALL|LVNI_SELECTED);
          if (n_item >= 0)
          {
            if (MessageBox (h_wnd, TEXT("Are you sure you want to delete this value?"), 
                                   TEXT("Deleting"), MB_YESNO|MB_ICONQUESTION)==IDYES)
            {
              HKEY h_key;
              LV_ITEM  listItem;

              memset (&listItem, 0, sizeof (listItem));
              listItem.pszText = sz_subKey;
              listItem.cchTextMax = MAX_PATH*7;
              listItem.iItem = n_item;
              listItem.mask = LVIF_TEXT;
              if (ListView_GetItem (pnmh->hwndFrom, &listItem) == FALSE)
                break;

              if (RegOpenKeyEx (hCurrRootKey, szCurrSubKey, 0, KEY_WRITE, &h_key) != ERROR_SUCCESS)
                break;
              if (RegDeleteValue (h_key, listItem.pszText) == ERROR_SUCCESS)
                ListView_DeleteItem (pnmh->hwndFrom, n_item);
              RegCloseKey (h_key);
            }
          }
        }
      }
      else if (pnkd->wVKey == VK_RETURN)
        RegList_EditSelectedValue (pnmh->hwndFrom, hCurrRootKey, szCurrSubKey);
    }
    break;

    case NM_DBLCLK:
      if (pnmh->hwndFrom == hListWnd)
        RegList_EditSelectedValue (hListWnd, hCurrRootKey, szCurrSubKey);
    break;
	}

	return 0;
}

//********************************************************************************************
//static BOOL WINAPI _aboutDialogHook (HWND h_wndDlg, UINT u_msg, WPARAM w_param, LPARAM l_param)
//{
//  switch (u_msg)
//  {
//    case WM_COMMAND:
//      switch (GET_WM_COMMAND_ID(w_param,l_param))
//      {
//        case IDCANCEL:
//          EndDialog (h_wndDlg, 0);
//        break;
//      }
//    break;
//  }
//  return 0;
//}

//********************************************************************************************
			int len;
			TCHAR *szbuf;
			HWND hEditbox;
			DWORD dwDisp;
			HKEY hKey;
			LPRECT rectl;

			HKEY     h_key;
			BOOLEAN  bool_isSubKeys = 0;
			TCHAR    psz_nextKey [MAX_PATH+1];
			DWORD    n_keyNameSize; 
			DWORD    dw_index;
			DWORD    retCode;
			TCHAR	 pRevCurrSubKey [MAX_PATH*8]; 
INT_PTR CALLBACK _addkey (HWND h_wndAdd, UINT u_msg, WPARAM w_param, LPARAM l_param)
{

	
  switch (u_msg)
  {
    case WM_COMMAND:
      switch (GET_WM_COMMAND_ID(w_param,l_param))
      {
	  case IDOK:
		 
		 
		 pRevCurrSubKey[2080]=szCurrSubKey[2080];
		  hEditbox = GetDlgItem(h_wndAdd, IDC_EDIT1);
		  len=GetWindowTextLength(hEditbox);
		  szbuf =(TCHAR*)GlobalAlloc(GPTR, len + 1);
		  GetWindowText(hEditbox, szbuf,len+1);
		  GetDlgItemText(hEditbox,IDC_EDIT1,(LPWSTR)szbuf, len + 1);
		  wcscat(szCurrSubKey,_T("\\"));
		  wcscat(szCurrSubKey, szbuf);

		 rc=  RegCreateKeyEx(hCurrRootKey,szCurrSubKey,0,TEXT(""),REG_OPTION_NON_VOLATILE, KEY_WRITE|KEY_ALL_ACCESS,NULL,&hKey,&dwDisp);
           	   if (rc == ERROR_SUCCESS)
				   {
					 MessageBox(NULL,TEXT("KEY REGISTERED"),TEXT("NOTICE"),MB_OK);
				   }
			   else 
				   {
						MessageBox(NULL,TEXT("Failed"),TEXT("ERROR"),MB_OK);
				  
	 			   }
				//RegCloseKey(hKey);
				//	   RegOpenKeyEx(hCurrRootKey,pRevCurrSubKey,0,KEY_EXECUTE,&h_key);

				h_item=TreeView_GetSelection(hTreeWnd);
				//	 retCode = RegOpenKeyEx (hCurrRootKey, hCurrRootKey, 0, KEY_EXECUTE, &h_key);
				/*if (retCode != ERROR_SUCCESS)
				return;*/


				//for (dw_index = 0 ; ; dw_index ++) //--- Read all sub keys 
				//{
				//n_keyNameSize = MAX_PATH;
				//if (RegEnumKeyEx (hKey, dw_index, psz_nextKey, &n_keyNameSize, 0, NULL, NULL, NULL) != ERROR_SUCCESS)
				//break;
				//RegOpenKeyEx()
				//   RegOpenKeyEx(hCurrRootKey,pRevCurrSubKey,0,KEY_EXECUTE,&h_key);

				//bool_isSubKeys = isParent (h_key, pRevCurrSubKey);

				//				DebugBreak();
				Tree_AddItem (hTreeWnd, szbuf, h_item,FALSE);

				RegCloseKey(hKey);
				RegCloseKey(h_key);
				RegCloseKey(szCurrSubKey);
				RegCloseKey(pRevCurrSubKey);
				RegCloseKey(hCurrRootKey);


				     
			    
        case IDCANCEL:
          EndDialog (h_wndAdd, 0);
        break;
      }
    break;
  }
  return 0;
} 
int len1;
TCHAR *szbuf1;
HWND hEditbox1;
DWORD dwDisp;
HKEY hKeyN2;
LPRECT rectl;
INT_PTR CALLBACK _string(HWND h_String, UINT u_msg, WPARAM w_param, LPARAM l_param)
{
  switch (u_msg)
  {
    case WM_COMMAND:
      switch (GET_WM_COMMAND_ID(w_param,l_param))
      {
	  case IDOK:
		
           //   DebugBreak();
			hEditbox1 = GetDlgItem(h_String, IDC_EDIT2);
			len1=GetWindowTextLength(hEditbox1);
			szbuf1 =(TCHAR*)GlobalAlloc(GPTR, len1 + 1);

			GetWindowText(hEditbox1, szbuf1,len1+1);
			GetDlgItemText(hEditbox1,IDC_EDIT2,(LPWSTR)szbuf1, len1 + 1);

			   rc = RegOpenKeyEx (hCurrRootKey,szCurrSubKey 
															, 0,
															KEY_SET_VALUE, &hKeyN2);
						if(rc != ERROR_SUCCESS)
						{
							MessageBox (NULL, TEXT("RegOpenKeyEx Failed"), 
													TEXT("Key not opened"), MB_OK);
							return FALSE; 
						 }
						//set a name and value under the open key 
						rc = RegSetValueEx (hKeyN2,szbuf1, 0, 
														   REG_DWORD , (LPBYTE)&dwRegVal,  
														   sizeof(dwRegVal));
						if (rc != ERROR_SUCCESS)
						 {
							MessageBox (NULL, TEXT("RegSetValueEx Failed"), 
												   TEXT("Couldn't delete value"), MB_OK);
						 }
						else
						{
							MessageBox (NULL, TEXT("String Name Added "), 
												   TEXT("NOTICE"), MB_OK);
						}
						//always clean up after ourselves
	 				RegCloseKey( hKeyN2 );
     
			    

		case IDCANCEL:
          EndDialog (h_String, 0);
        break;
      }
    break;
  }
  return 0;
} 
INT_PTR CALLBACK _about(HWND h_Modify, UINT u_msg, WPARAM w_param, LPARAM l_param)
{
  switch (u_msg)
  {
    case WM_COMMAND:
      switch (GET_WM_COMMAND_ID(w_param,l_param))
      {
	  case IDOK:
	  case IDCANCEL:
	  
          EndDialog (h_Modify, 0);
		  
        break;
      }
    break;
  }
  return 0;
}
 
	static BOOLEAN isParent (HKEY h_parent, TCHAR * psz_key)
	{
	  DWORD  n_numSubKeys; // address of buffer for number of subkeys 
	  DWORD  n_maxSubKeyLen;// address of buffer for longest subkey name length  
	  DWORD  n_maxClassLen; // address of buffer for longest class string length 
	  DWORD  n_numValues; // address of buffer for number of value entries 
	  DWORD  n_maxValueNameLen;     // address of buffer for longest value name length 

	  HKEY  h_key; // handle of key to query 
	  DWORD retCode = RegOpenKeyEx (h_parent, psz_key, 0, KEY_EXECUTE, &h_key);
	  if (retCode != ERROR_SUCCESS)
		return FALSE;

	  n_numSubKeys = 0;
	  retCode = RegQueryInfoKey (h_key, NULL, NULL, NULL, 
								  &n_numSubKeys, &n_maxSubKeyLen, 
								  &n_maxClassLen,
								  &n_numValues, &n_maxValueNameLen, NULL, 
								  NULL, NULL);
	  RegCloseKey (h_key);
	  return (n_numSubKeys != 0);
	}

Re: problem in adding node in registry

Cedric Moonen24-Feb-09 20:52

Cedric Moonen

24-Feb-09 20:52

Please, don't post your full code. Nobody is going to read all of this. Try to narrow down the problem and post only a relevant piece of code.

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Re: problem in adding node in registry

sonali996026-Feb-09 19:44

sonali9960

26-Feb-09 19:44

now this is the snippet which add the node now resove my problem

rc=  RegCreateKeyEx(hCurrRootKey,szCurrSubKey,0,TEXT(""),REG_OPTION_NON_VOLATILE, KEY_WRITE|KEY_ALL_ACCESS,NULL,&hKey,&dwDisp);               if (rc == ERROR_SUCCESS)                {                     MessageBox(NULL,TEXT("KEY REGISTERED"),TEXT("NOTICE"),MB_OK);                 }               else                    {                        MessageBox(NULL,TEXT("Failed"),TEXT("ERROR"),MB_OK);                                   }                //RegCloseKey(hKey);                //     RegOpenKeyEx(hCurrRootKey,pRevCurrSubKey,0,KEY_EXECUTE,&h_key);              h_item=TreeView_GetSelection(hTreeWnd);             //   retCode = RegOpenKeyEx (hCurrRootKey, hCurrRootKey, 0, KEY_EXECUTE, &h_key);               /*if (retCode != ERROR_SUCCESS)             return;*/               //for (dw_index = 0 ; ; dw_index ++) //--- Read all sub keys                //{             //n_keyNameSize = MAX_PATH;             //if (RegEnumKeyEx (hKey, dw_index, psz_nextKey, &n_keyNameSize, 0, NULL, NULL, NULL) != ERROR_SUCCESS)             //break;                //RegOpenKeyEx()                //   RegOpenKeyEx(hCurrRootKey,pRevCurrSubKey,0,KEY_EXECUTE,&h_key);                //bool_isSubKeys = isParent (h_key, pRevCurrSubKey);                //              DebugBreak();               Tree_AddItem (hTreeWnd, szbuf, h_item,FALSE);               RegCloseKey(hKey);              RegCloseKey(h_key);             RegCloseKey(szCurrSubKey);              RegCloseKey(pRevCurrSubKey);                RegCloseKey(hCurrRootKey);

How do you refresh/update a parent dialog when Modal child dialog is active

JJeffrey24-Feb-09 16:34

JJeffrey

24-Feb-09 16:34

I've been trying to update data that is currently displayed on a parent dialog while the user is entering data on a modal child dialog, or at least when the user closes the modal child dialog.

The parent window has a preview thumbnail of a picture file, the user can open a modal child dialog that allows him to edit this picture. What I want is for the editing of the picture or, at worst, the closing of the edit modal dialog.

The editing is done by bitmap bit editing and the data is saved to a file. The parent's preview image is generated by retrieving the data on file and reconstructing the bitmap using SetBitmapBits. The preview 'window' is a Bitmap dialog object which I use SetBitmap to load the reconstructed bitmap.

void CParentDialog::OnLbnSelchangeStringlist()
{
	DWORD SelectedID =0;
	BYTE	PreviewInfo[MAXHEIGHT][MAXWIDTH][3];

	SelectedID = m_StringList.GetCurSel();  //Get the name of the image
	if(SelectedID!=LB_ERR )
		m_StringList.GetText(SelectedID, SelString);
	
	BOOL ValidPicture = ReadDataFromDataFile(PreviewInfo);  //Read the appropriate Data from file
	HBITMAP PreviewDisplay = ArrayToBitmap(PreviewInfo); //convert from bit data to BMP format

	m_Preview.SetBitmap(PreviewDisplay);  //Set the Preview image
}

void CParentDialog::OnEditbmp() 
{
	CChildDialog* EditImage = new CChildDialog;
	EditImage->Create(IDD_BITMAPEDIT, this);
}

At this moment, I can show the preview from file before the edit (triggering off a select event when the user selects the image name), but when the user opens the edit modal dialog (trigger from button press), makes changes, saves the changes to file and exits the modal dialog, the preview image on the parent window is not updated (expected behaviour since I didn't call for any change).

Is there a method to trigger the update of the data on the parent dialog? Since the modal child dialog is a different class, I do not have access to the variables of the parent dialog, and I cannot create an instance of the parent dialog just to make changes, can I? Is there a triggering point when I close the child dialog that allows me to run some code on the parent dialog's side to cupdate the picture?

Thanks in advance.
Please feel free to ask any questions. I'll answer them asap.

Re: How do you refresh/update a parent dialog when Modal child dialog is active

ashtwin24-Feb-09 16:57

ashtwin

24-Feb-09 16:57

Override the DoModal() for child class and pass the pointer of the parent in it.

Thanks

Re: How do you refresh/update a parent dialog when Modal child dialog is active

JJeffrey24-Feb-09 21:41

JJeffrey

24-Feb-09 21:41

Ok, call me an idiot, but how do i use the pointer to parent?

I was trying this:

CParentDialog* pParent = STATIC_DOWNCAST( CParentDialog, <pointer to="" parent=""> );
pParent->m_Preview.SetBitmap(XXX);</pointer>

within the Exit routine of the child dialog but I can't get the program to recognise CParentDialog

error C2065: CParentDialog: undeclared identifier

How do I declare the Class of the parent window in the child's code? I can't seem to remember if there's a way with extern.

Thanks again.

Re: How do you refresh/update a parent dialog when Modal child dialog is active

«_Superman_»24-Feb-09 17:41

«_Superman_»

24-Feb-09 17:41

You could try to send a custom message to the parent dialog.
GetParent()->PostMessage(WM_UPDATEPREVIEW)

In the parent dialog you must have a handler for WM_UPDATEPREVIEW in which you could read the file and update the thumbnail.

«_Superman_»
I love work. It gives me something to do between weekends.

Problem in displaying tooltip

ashtwin24-Feb-09 16:04

ashtwin

24-Feb-09 16:04

Hi,
I want to display a tooltip over a propertysheet whenever user will put the mouse cusor on its left or right border.
I am using the following
code

LRESULT MySubCard::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
	LRESULT result = 0;

	try
	{
		switch (message)
		{
			case WM_LBUTTONDOWN:
			case WM_RBUTTONDOWN:
			case WM_MBUTTONDOWN:
			case WM_LBUTTONUP:
			case WM_RBUTTONUP:
			case WM_MBUTTONUP:
			case WM_MOUSEMOVE:
			{
				// Mouse messages must be relayed to tooltip control
				if (::IsWindow(mLeftToolTip.GetSafeHwnd()))
				{
					MSG msg;
					msg.hwnd = m_hWnd;
					msg.message = message;
					msg.wParam = wParam;
					msg.lParam = lParam;

					if(Within left or rigth border)
					{
					   mLeftToolTip.Activate(TRUE);
					   mLeftToolTip.RelayEvent(&msg);
					}
				}
			}

			default:
			{
				break;
			}
		}
		result = CWnd::WindowProc(message, wParam, lParam);
	}
	catch (...) 
	{
	}    

	return result;
}

I am setting the tool using the following code

mLeftToolTip.AddTool(this, szToolTip, borderarea, ID_SPLITTER_TOOLTIP);

Though in windowproc RelayEvent is getting called for mouse movements but the tooltip is not getting displayed.

Thanks

Re: Problem in displaying tooltip

Code-o-mat24-Feb-09 21:40

Code-o-mat

24-Feb-09 21:40

When you move the mouse on the border of a window you get WM_NCMOUSEMOVE[^] and friends, not WM_MOUSEMOVE and his buddies. Althorough i doubt the tooltip control would react on these...maybe you could try "transforming" the non-client messages to client-messages when relaying to the tooltip.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Re: Problem in displaying tooltip

ashtwin25-Feb-09 1:02

ashtwin

25-Feb-09 1:02

Hi, thanks for replaying. I tried NC messages also but they are also not working. My doubt is that whether we can display tooltip for a region in a dialog or not.

Thanks

Re: Problem in displaying tooltip [modified]

Code-o-mat25-Feb-09 1:20

Code-o-mat

25-Feb-09 1:20

Am not completely sure but it should work since as far as i know the dialog, from the perspecfive of the tooltip is just a CWnd like any other... How did you create the region you specified for it, what coords did you use?

I think what you could do is to somehow calculate the border area's position in client coordinates and add these to the tooltip. Then, when WM_NCMOUSEMOVE comes in, convert the mouse coords to client coords of the window, and feed these to the tooltip with WM_MOUSEMOVE instead of WM_NCMOUSEMOVE. No idea if this would work or not, but it might be worth a try. So i mean something like this:

...
case WM_NCMOUSEMOVE:
{
  CPoint Pt(lParam);
  ScreenToClient(Pt);

  MSG msg;
  msg.hwnd    = m_hWnd;
  msg.message = WM_MOUSEMOVE;
  msg.wParam  = wParam;
  msg.lParam  = MAKELPARAM(Pt.x, Pt.y);
  mLeftToolTip.RelayEvent(&msg);
}
...

[edit] Hey, i just tryed it out, you don't need all this fancypants "message converting" thing, if you feed the tooltip the coordinates of the borders in client-space then it will work flawlessly.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

modified on Wednesday, February 25, 2009 8:34 AM

Re: Problem in displaying tooltip

ashtwin25-Feb-09 21:23

ashtwin

25-Feb-09 21:23

Hi, Its working.

Thanks a lot. Smile | :)

Best Location for DB Files

Bram van Kampen24-Feb-09 14:38

Bram van Kampen

24-Feb-09 14:38

I have a set of Files, used by my Applications as a Database. These files are accessed directly by my software, and are stored on one of the machines forming a 'Peer to Peer' Network.(16 Terminals Max). The End users are generally oblivious to the existence of these files. All Opening, Closing, Reading or Writing is done transparently, without the user being aware of this happening. In fact, the users are mostly not aware of the existence of File Systems.
Actually, The location of the Database should not be disclosed to anybody else but Registered Power Users.

All Terminals are logged in to the network as 'Administrator'

It is of course an imperative for the system that the 'File System' should be visible to All Users on the Local Network.

I Currently install the Database under:-

'c:\Program Files\MyCompany\AppName\Data'

Question:
What Directory should I select in my Setup Code to ensure a clean Setup in Vista.

Regards Smile | :)

Bram van Kampen

How to get the fullpath from argument of my application (VS C++ 2005)?

nhatvhm24-Feb-09 14:05

nhatvhm

24-Feb-09 14:05

My application used to argument (with argv[1]: filename). How to get fullpath from filename via argv[1]. For example, [myapp.exe input.txt]. Confused | :confused:

Re: How to get the fullpath from argument of my application (VS C++ 2005)?

W. Kleinschmit24-Feb-09 14:45

W. Kleinschmit

24-Feb-09 14:45

What's wrong with

fullpath(argv[1]);

??

Re: How to get the fullpath from argument of my application (VS C++ 2005)?

ky_rerun24-Feb-09 14:47

ky_rerun

24-Feb-09 14:47

I'm assuming that you are passing in the argument so the caller would need to pass it in. Many windows functions look for the file name in the order of current directory then traverse the path. But if you need to get the entire file name that will have to be passed in.

If the file is in the current directory you can use findfirstfile findnextfile functions.

a programmer traped in a thugs body

Re: How to get the fullpath from argument of my application (VS C++ 2005)?

«_Superman_»24-Feb-09 17:51

«_Superman_»

24-Feb-09 17:51

If you want the fullpath relative to the current working folder you can use the _fullpath function as mentioned by W. Kleinschmit.

If you want to search for the file and then get the full path of that file you can use PathFindOnPathAPI.

«_Superman_»
I love work. It gives me something to do between weekends.

All pipes intances are busy

Arif Liminto24-Feb-09 14:04

Arif Liminto

24-Feb-09 14:04

Hi I got a project which involves interprocess communication. I uses pipes because it's only happend in one machine. It seems everything should be perfect. However, When I try to connect The Client and The Server. I always have an Error number 231 ( All pipe instances are busy) when I try to create file in client side.

Client --> Create File, Write File
Server --> Create Named Pipes, Read File

here is some of the code in my programs

m_hPipeHandle = INVALID_HANDLE_VALUE;
m_hPipeHandle = CreateFile(ISOCOMSPIPE,GENERIC_WRITE,FILE_SHARE_WRITE,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);

if(m_hPipeHandle == INVALID_HANDLE_VALUE)
{
  int iRet = GetLastError();
  printf("Error number %d",iRet);
}

closeHandle(m_hPipeHandle);

Is there anything wrong in the attributes/ missing attributes when I want to create the file ?

Thx

Can someone check this in VC++ 2008

cmk24-Feb-09 13:39

cmk

24-Feb-09 13:39

https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=99331[^]

Can someone check to see if the above bug was fixed in VC++ 2008.

I've got some code that is based on the assumption that virtual properties works, i want to know if i have to modify the code or upgrade to 2008.

...cmk

The idea that I can be presented with a problem, set out to logically solve it with the tools at hand, and wind up with a program that could not be legally used because someone else followed the same logical steps some years ago and filed for a patent on it is horrifying.
- John Carmack

Re: Can someone check this in VC++ 2008

Stuart Dootson25-Feb-09 8:14

Stuart Dootson

25-Feb-09 8:14

You'll have to modify the code - that behaviour is still present in VS2008

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Can someone check this in VC++ 2008

cmk25-Feb-09 9:29

cmk

25-Feb-09 9:29

Based on their bug response i'm not too surprised.

Thanks for checking, i really didn't want to install VC 2008 Express just to check.

My Javascript gone as far as it can, I need some C++ starting points

skieeterno24-Feb-09 12:12

skieeterno

24-Feb-09 12:12

Hi all,

I have written a Javascript code that moves a dot around the screen randomly, and it does output my result at the end of the code, however I feel I have gone as far as I can with this code and would like a different way to create the program. First thought was using C++,

Here is the code:

<code> "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta http-equiv="Content-Style-Type" content="text/css">
<meta http-equiv="Content-Script-Type" content="text/javascript">

<style type="text/css">
body {
overflow:hidden;
}
#container div,#timer {
width:250px;
line-height:30px;
padding-left:10px;
border:3px double #999;
margin:4px 0;
}
.hide {
display:none;
}
#dot {
width20px;
font-size:36px;
color:#f00;
position:absolute;
}
#coords {
padding:10px;
border:3px double #999;
margin-top:10px;
font-family:courier,monospace;
font-size:12px;
text-align:justify;
}
</style>

<script type="text/javascript">

/****** these values may be edited *****/

var iterations=2000;
var height=999;
var width=999;
var temp1=500;
var temp2=500;

/***************************************/

var speed=10;

var c=0;
var ur=0;
var ul=0;
var dr=0;
var dl=0;
var s=0;
var xc=0;
var yc=0;

if(window.addEventListener){
window.addEventListener('load',randomtest,false);
}
else {
if(window.attachEvent){
window.attachEvent('onload',randomtest);
}
}
function randomtest(){

secs=Math.floor((iterations-c)*speed/1000);

x=Math.floor(Math.random()*width);
y=Math.floor(Math.random()*height);

document.getElementById('coords').innerHTML+=x+':'+y+', ';

document.getElementById('dot').style.left=x+'px';
document.getElementById('dot').style.top=y+'px';

if((x>=temp2)&&(y>=temp1)) {
ur++;
temp1=x;
temp2=y;
}
else {
if((x<=temp2)&&(y>=temp1)) {
ul++;
temp1=x;
temp2=y;
}
else {
if((x>=temp2)&&(y<=temp1)) {
dr++;
temp1=x;
temp2=y;
}
else {
if((x<=temp2)&&(y<=temp1)) {
dl++;
temp1=x;
temp2=y;
}
}
}
}
c++;
xc=xc+x;
yc=yc+y;
if(c>iterations) {
clearTimeout(rnd);

document.getElementById('timer').className='hide';
document.getElementById('dot').className='hide';
document.body.style.overflow='visible';

document.getElementById('upright').firstChild.nodeValue='up right total='+ur;
document.getElementById('upleft').firstChild.nodeValue='up left total='+ul;
document.getElementById('downright').firstChild.nodeValue='down right total='+dr;
document.getElementById('downleft').firstChild.nodeValue='down left total='+dl;

document.getElementById('container').className='';
document.getElementById('coords').className='';

alert('average coords are $Shucks | :-\$ n\nx='+Math.round(xc/c)+'\ny='+Math.round(yc/c));

return;
}

document.getElementById('timer').firstChild.nodeValue='time remaining : '+secs+' seconds.';
rnd=setTimeout('randomtest()',speed);
}
</script>

</meta></meta></meta></head>
<body>

<div id="timer"> </div>

<div id="container" class="hide">
<div id="upright"> </div>
<div id="upleft"> </div>
<div id="downright"> </div>
<div id="downleft"> </div>
</div>

<div id="dot">•</div>
<div id="coords" class="hide"></div>

</body>
</html>
</code>

Can anyone help out with some C++ code to get me started? I would be forever greatful.

Skie

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