C++.NET Forum RSS Feed

problem with the exe created during release mode

Mon, 07 Jul 2008 01:46:57 -0700

Hi friends,
I am working with vc++.Net...In my project i have to spawn an exe application(Say Ex:Notepad)...I used create process to spawn the Notepad application...Also i have one ini file which is used in my Project and an external dll created using C# code...In my project If i cant spawn the Notepad application due to any situation then i ll display a messsage "Cannot spawn the Child process".. My problem is : i have to create exe for this project in release mode...If i select "Release mode" from the IDE and run the application it works perfectly [After doing some changes in settings 1.Project Menu--->Property pages---> C/C++ --->General---> Debug Information Format , in changed to Program Database
2.)Property pages---> C/C++ ---Optimization---Optimization, i select disabled.]
after i did this changes application runs successfully and spawn the notepad application...

After running this i go to the release folder and try to run the exe file created there [by double clicking]...But i got the message "Cannot spawn the Child process".."Why??? Any known friends Help me...Thanks in advance...

how to save the tiff image in uncompressed form??

Sun, 06 Jul 2008 01:27:39 -0700

the application i am using requires the uncompressed tiff file having bit depth 1 and resolution of 300dpi. it is built in dot net 2003. whenever i open the uncompressed tiff image having bit depth 1 and save the same tiff image using savefiledialog function of dot net2003, the uncompressed tiff file becomes compressed and the bit depth is increased to 32. i haven't use any compression function. the code of saving the file is given below

private: void saveImageFile()
{
saveImage->Filter= "Tiff files (*.tif)|*.tif" ;
saveImage->FilterIndex = 1 ;
saveImage->RestoreDirectory = true ;

System::Windows::Forms::DialogResult d = this->saveImage->ShowDialog();
if (d == System::Windows::Forms::DialogResult::OK)
{
// creating a bitmap
Bitmap* saveMyImage;
saveMyImage=new Bitmap(this->pictureBox1->Image);//,System::Drawing::Imaging::PixelFormat:: Format1bppIndexed);
saveMyImage->SetResolution(300,300);
saveMyImage->PixelFormat::Format1bppIndexed;// this line doesnot work
saveMyImage->Save(saveImage->FileName,System::Drawing::Imaging::ImageFormat::T iff);

}

}

Which is Better Pro*C/C++ or C# ???

Tue, 25 Mar 2008 10:07:09 -0700

Hi friends,
I want to develop one business (back end exe to do functional computations and get/store data into Oracle) application which i can develop either in Pro*C/C++ or C#.
Which language (Pro*C/C++ or C#) shall i chose ??? and why ???
which application will be more faster ?? and why ???

MS Access in C++.NET

Mon, 19 Nov 2007 21:44:04 -0700

Hi!

I'm trying to update my MS Access database but it doesn't seem to work...
in other languages you can use OleDbConnection->ExecuteNonQuery()
but there's no such in c++.NET

I'm able to read the database but not update it...

could someone help me out?

greyscale image processing

Sun, 11 Nov 2007 11:13:53 -0700

HI, Everyone!
I have to process 2 greyscale images in .pgm format and perform a search for moving vectors between the two. For the first image (reference) i'm ok, since I have to get just a 16 x 16 pixel array.
For the second (target) I've encountered some problems with time:
I take every possible block 16x16 of pixels and it takes about 5-7 minutes for only that image since I use for loops (standard libs).
Anyone can suggest me some code or libraries or links that might help me speed it up a little?

OS: Windows XP SP2
Software: MS Visual Studio .Net 2005

c++.net 2005 and ado.net problem

Wed, 31 Oct 2007 08:38:05 -0700

Hello,

I am trying to learn how to programatically create a connection to a sql server database on my local machine. My server name is DAEDULUS and database name is RezSys. When ever I try to extract data from the table Hotel it gives me the following error:

Connection Sucessfull

Unhandled Exception: System.IndexOutOfRangeException: Index was outside the boun
ds of the array.
at System.Data.SqlClient.SqlDataReader.ReadColumn(Int 32 i, Boolean setTimeout
)
at System.Data.SqlClient.SqlDataReader.GetInt32(Int32 i)
at main(String[] args) in c:\documents and settings\jut\my documents\visual s
tudio 2005\projects\test\test\test.cpp:line 28
at mainCRTStartupStrArray(String[] arguments) in f:\rtm\vctools\crt_bld\self_
x86\crt\src\mcrtexe.cpp:line 324
Press any key to continue . . .

I know I should have a try catch block but that will come after.

My source code is below:

#include "stdafx.h"

using namespace System;
using namespace System::Data::SqlClient;

int main(array<System::String ^> ^args)
{

Console::WriteLine(L"Hello World");

SqlCommand^ comm;

SqlConnection^ myCon = gcnew SqlConnection("server=DAEDULUS;Trusted_Connection= yes;Initial Catalog=RezSys;");
myCon->Open();
comm = gcnew SqlCommand("select [RoomType] from [Hotel]",myCon);
if(comm->ExecuteNonQuery())
{
Console::WriteLine(L"Connection Sucessfull");
}

SqlDataReader^ reader;
reader = comm->ExecuteReader();
while(reader->Read())
{
Console::Write(reader->GetInt32(1));
}
myCon->Close();

return 0;
}

I am not sure what I am doing wrong any help would be appreciated.

Sincerely,
Jut26

How to enter input parameter?

Thu, 27 Sep 2007 13:29:51 -0700

I'm a newbie at C++ programming.
Right now i'm making a program that need parameters input,
example: phoen datafile.dat -d -e.

I'm making the program using Microsoft Visual Studio .Net as the platform.
The problem arise When I run the program because i can't enter the parameter needed in the program.

What I want to ask is how to enter the parameter when I run the program under the Microsoft Studio .Net?
Should I choose another platform instead of Microsoft Studio .Net?

Thank you for the attention and help that I received.
I'm sorry for my bad english.

How to redirect a debugging log file in VC++ .NET 2003

Wed, 22 Aug 2007 14:28:18 -0700

Hi,
I want to generate a log file (e.g. output.txt) for debugging output.
I want it in my project's debug directory. I can generate the file but not in the right place.

I open the project properties page and choose Debugging to get a series of edit boxes, one is called Command Arguments.
I enter the following for Command Arguments:
> output.txt

This creates the file in
C:\Program Files\Microsoft Visual Studio .NET 2003\Common7\IDE
aka $(DevEnvDir)

However, I want it in C:\Home\Coding\CPP\Project1\Debug
aka $(TargetDir). When I enter the Command Argument:
>$(TargetDir)\output.txt it doesn't work.

Please would someone tell me what the correct Command Argument is to get the output file where I want it.

Thanks,

Peithon

need help about controlling other applications

Fri, 10 Aug 2007 08:33:56 -0700

Hello,
I am trying to write sort of an aplication monitor that monitors a specific program and takes control of it when something happens, to be more specific i need to monitor a save command in this aplication and then
when it is saved to print it as an image file. that means to virtualy press the print button and change the default printing settings. ho can i do this? one more thing - the person who uses this software has minimal computer skills so i have to hide from him all the technical stuff like knowing which application to target automaticly or by running it through my application for example.

10x

Looking for a book

Mon, 30 Jul 2007 18:15:16 -0700

I am looking for a book on reading/writing/copying a cd or dvd. I have need of the full understnding oh how to do this. Can anyone recommend such book?

setting edit box font...

Wed, 18 Jul 2007 17:05:24 -0700

i have a small problem. i am new to windows programming and i have to do for summer practice at college a project... an editor.. something like notepad... and ai foudn a source code... i modified it.. now the program is quite functional.. but i want tu give the opportunity to change te font... and i searched all the web and i found some tips, but it still doesn't work... if can anyone help... i need this project to be fully functional by friday morning...
this is the code...:

resource.h

//{{NO_DEPENDENCIES}}
// Microsoft Visual C++ generated include file.
// Used by app_four.rc
//
#define IDR_MAINMENU 102
#define IDI_ICON1 102
#define IDB_BITMAP2 104
#define IDD_ABOUT 105
#define ID_FILE_EXIT 40001
#define ID_FILE_NEW 40002
#define ID_FILE_OPEN 40003
#define ID_FILE_SAVEAS 40005
#define ID_WINDOW_CASCADE 40008
#define ID_WINDOW_TILE 40009
#define ID_FILE_CLOSE 40010
#define ID_EDIT_CUT 40015
#define ID_EDIT_COPY 40016
#define ID_EDIT_PASTE 40017
#define ID_FILE_PRINT 40020
#define ID_EDIT_UNDO 40022
#define ID_EDIT_DELETE 40023
#define ID_EDIT_FIND 40024
#define ID_EDIT_REPLACE 40025
#define ID_EDIT_SELECTALL 40026
#define ID_FORMAT_FONT 40029
#define ID_HELP_ABOUT 40030

// Next default values for new objects
//
#ifdef APSTUDIO_INVOKED
#ifndef APSTUDIO_READONLY_SYMBOLS
#define _APS_NEXT_RESOURCE_VALUE 106
#define _APS_NEXT_COMMAND_VALUE 40031
#define _APS_NEXT_CONTROL_VALUE 1000
#define _APS_NEXT_SYMED_VALUE 101
#endif
#endif

and this is the .c file

#include <windows.h>
#include <commctrl.h>
#include "resource.h"

const char g_szClassName[] = "myWindowClass";
const char g_szChildClassName[] = "myMDIChildWindowClass";

#define IDC_MAIN_MDI 101
#define IDC_MAIN_TOOL 102
#define IDC_MAIN_STATUS 103

#define IDC_CHILD_EDIT 104

#define ID_MDI_FIRSTCHILD 50000

// font and color

HFONT g_hfFont = NULL;
BOOL g_bOpaque = TRUE;
COLORREF g_rgbText = RGB(0, 0, 0);
COLORREF g_rgbBackground = RGB(255, 255, 255);

COLORREF g_rgbCustom[16] = {0};

HWND g_hMDIClient = NULL;
HWND g_hMainWindow = NULL;

void DoSelectFont(HWND hwnd)
{
CHOOSEFONT cf = {sizeof(CHOOSEFONT)};
LOGFONT lf;

GetObject(g_hfFont, sizeof(LOGFONT), &lf);

cf.Flags = CF_EFFECTS | CF_INITTOLOGFONTSTRUCT | CF_SCREENFONTS;
cf.hwndOwner = hwnd;
cf.lpLogFont = &lf;
cf.rgbColors = g_rgbText;

if(ChooseFont(&cf))
{
HFONT hf = CreateFontIndirect(&lf);
if(hf)
{
g_hfFont = hf;
}
else
{
MessageBox(hwnd, "Font creation failed!", "Error", MB_OK | MB_ICONEXCLAMATION);
}

g_rgbText = cf.rgbColors;
}
}

void DoSelectColour(HWND hwnd)
{
CHOOSECOLOR cc = {sizeof(CHOOSECOLOR)};

cc.Flags = CC_RGBINIT | CC_FULLOPEN | CC_ANYCOLOR;
cc.hwndOwner = hwnd;
cc.rgbResult = g_rgbBackground;
cc.lpCustColors = g_rgbCustom;

if(ChooseColor(&cc))
{
g_rgbBackground = cc.rgbResult;
}
}

BOOL CALLBACK AboutDlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
switch(Message)
{
case WM_INITDIALOG:

return TRUE;
case WM_COMMAND:
switch(LOWORD(wParam))
{
case IDOK:
EndDialog(hwnd, 0);
break;
case IDCANCEL:
EndDialog(hwnd, 0);
break;

}
break;
default:
return FALSE;
}
return TRUE;
}

BOOL LoadTextFileToEdit(HWND hEdit, LPCTSTR pszFileName)
{
HANDLE hFile;
BOOL bSuccess = FALSE;

hFile = CreateFile(pszFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, 0, NULL);
if(hFile != INVALID_HANDLE_VALUE)
{
DWORD dwFileSize;

dwFileSize = GetFileSize(hFile, NULL);
if(dwFileSize != 0xFFFFFFFF)
{
LPSTR pszFileText;

pszFileText = GlobalAlloc(GPTR, dwFileSize + 1);
if(pszFileText != NULL)
{
DWORD dwRead;

if(ReadFile(hFile, pszFileText, dwFileSize, &dwRead, NULL))
{
pszFileText[dwFileSize] = 0; // Add null terminator
if(SetWindowText(hEdit, pszFileText))
bSuccess = TRUE; // It worked!
}
GlobalFree(pszFileText);
}
}
CloseHandle(hFile);
}
return bSuccess;
}

BOOL SaveTextFileFromEdit(HWND hEdit, LPCTSTR pszFileName)
{
HANDLE hFile;
BOOL bSuccess = FALSE;

hFile = CreateFile(pszFileName, GENERIC_WRITE, 0, NULL,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if(hFile != INVALID_HANDLE_VALUE)
{
DWORD dwTextLength;

dwTextLength = GetWindowTextLength(hEdit);
// No need to bother if there's no text.
if(dwTextLength > 0)
{
LPSTR pszText;
DWORD dwBufferSize = dwTextLength + 1;

pszText = GlobalAlloc(GPTR, dwBufferSize);
if(pszText != NULL)
{
if(GetWindowText(hEdit, pszText, dwBufferSize))
{
DWORD dwWritten;

if(WriteFile(hFile, pszText, dwTextLength, &dwWritten, NULL))
bSuccess = TRUE;
}
GlobalFree(pszText);
}
}
CloseHandle(hFile);
}
return bSuccess;
}

void DoFileOpen(HWND hwnd)
{
OPENFILENAME ofn;
char szFileName[MAX_PATH] = "";

ZeroMemory(&ofn, sizeof(ofn));

ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFilter = "Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.lpstrFile = szFileName;
ofn.nMaxFile = MAX_PATH;
ofn.Flags = OFN_EXPLORER | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;
ofn.lpstrDefExt = "txt";

if(GetOpenFileName(&ofn))
{
HWND hEdit = GetDlgItem(hwnd, IDC_CHILD_EDIT);
if(LoadTextFileToEdit(hEdit, szFileName))
{
SendDlgItemMessage(g_hMainWindow, IDC_MAIN_STATUS, SB_SETTEXT, 0, (LPARAM)"Opened...");
SendDlgItemMessage(g_hMainWindow, IDC_MAIN_STATUS, SB_SETTEXT, 1, (LPARAM)szFileName);

SetWindowText(hwnd, szFileName);
}
}
}

void DoFileSave(HWND hwnd)
{
OPENFILENAME ofn;
char szFileName[MAX_PATH] = "";

ZeroMemory(&ofn, sizeof(ofn));

ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFilter = "Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.lpstrFile = szFileName;
ofn.nMaxFile = MAX_PATH;
ofn.lpstrDefExt = "txt";
ofn.Flags = OFN_EXPLORER | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT;

if(GetSaveFileName(&ofn))
{
HWND hEdit = GetDlgItem(hwnd, IDC_CHILD_EDIT);
if(SaveTextFileFromEdit(hEdit, szFileName))
{
SendDlgItemMessage(g_hMainWindow, IDC_MAIN_STATUS, SB_SETTEXT, 0, (LPARAM)"Saved...");
SendDlgItemMessage(g_hMainWindow, IDC_MAIN_STATUS, SB_SETTEXT, 1, (LPARAM)szFileName);

SetWindowText(hwnd, szFileName);
}
}
}

HWND CreateNewMDIChild(HWND hMDIClient)
{
MDICREATESTRUCT mcs;
HWND hChild;

mcs.szTitle = "[Untitled]";
mcs.szClass = g_szChildClassName;
mcs.hOwner = GetModuleHandle(NULL);
mcs.x = mcs.cx = CW_USEDEFAULT;
mcs.y = mcs.cy = CW_USEDEFAULT;
mcs.style = MDIS_ALLCHILDSTYLES;

hChild = (HWND)SendMessage(hMDIClient, WM_MDICREATE, 0, (LONG)&mcs);
if(!hChild)
{
MessageBox(hMDIClient, "MDI Child creation failed.", "Oh Oh...",
MB_ICONEXCLAMATION | MB_OK);
}
return hChild;
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(msg)
{
case WM_CREATE:
{
HWND hTool;
TBBUTTON tbb[11];
TBADDBITMAP tbab;

HWND hStatus;
int statwidths[] = {200, -1};

CLIENTCREATESTRUCT ccs;

// Create MDI Client

// Find window menu where children will be listed
ccs.hWindowMenu = GetSubMenu(GetMenu(hwnd), 3);// afiseaza la window toate ferestrele deschise
ccs.idFirstChild = ID_MDI_FIRSTCHILD;

g_hMDIClient = CreateWindowEx(WS_EX_CLIENTEDGE, "mdiclient", NULL,
WS_CHILD | WS_CLIPCHILDREN | WS_VSCROLL | WS_HSCROLL | WS_VISIBLE,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
hwnd, (HMENU)IDC_MAIN_MDI, GetModuleHandle(NULL), (LPVOID)&ccs);

if(g_hMDIClient == NULL)
MessageBox(hwnd, "Could not create MDI client.", "Error", MB_OK | MB_ICONERROR);

// Create Toolbar

hTool = CreateWindowEx(0, TOOLBARCLASSNAME, NULL, WS_CHILD | WS_VISIBLE, 0, 0, 0, 0,
hwnd, (HMENU)IDC_MAIN_TOOL, GetModuleHandle(NULL), NULL);
if(hTool == NULL)
MessageBox(hwnd, "Could not create tool bar.", "Error", MB_OK | MB_ICONERROR);

// Send the TB_BUTTONSTRUCTSIZE message, which is required for
// backward compatibility.
SendMessage(hTool, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof(TBBUTTON), 0);

tbab.hInst = HINST_COMMCTRL;
tbab.nID = IDB_STD_SMALL_COLOR;
SendMessage(hTool, TB_ADDBITMAP, 0, (LPARAM)&tbab);

ZeroMemory(tbb, sizeof(tbb));
tbb[0].iBitmap = STD_FILENEW;// new
tbb[0].fsState = TBSTATE_ENABLED;
tbb[0].fsStyle = TBSTYLE_BUTTON;
tbb[0].idCommand = ID_FILE_NEW;

tbb[1].iBitmap = STD_FILEOPEN;// open
tbb[1].fsState = TBSTATE_ENABLED;
tbb[1].fsStyle = TBSTYLE_BUTTON;
tbb[1].idCommand = ID_FILE_OPEN;

tbb[2].iBitmap = STD_FILESAVE;// save
tbb[2].fsState = TBSTATE_ENABLED;
tbb[2].fsStyle = TBSTYLE_BUTTON;
tbb[2].idCommand = ID_FILE_SAVEAS;

tbb[3].iBitmap = STD_PRINTPRE;// print
tbb[3].fsState = TBSTATE_ENABLED;
tbb[3].fsStyle = TBSTYLE_BUTTON;
tbb[3].idCommand = ID_FILE_PRINT;

tbb[4].iBitmap = STD_UNDO;// undo
tbb[4].fsState = TBSTATE_ENABLED;
tbb[4].fsStyle = TBSTYLE_BUTTON;
tbb[4].idCommand = ID_EDIT_UNDO;

tbb[5].iBitmap = STD_CUT;// cut
tbb[5].fsState = TBSTATE_ENABLED;
tbb[5].fsStyle = TBSTYLE_BUTTON;
tbb[5].idCommand = ID_EDIT_CUT;

tbb[6].iBitmap = STD_COPY;// copy
tbb[6].fsState = TBSTATE_ENABLED;
tbb[6].fsStyle = TBSTYLE_BUTTON;
tbb[6].idCommand = ID_EDIT_COPY;

tbb[7].iBitmap = STD_PASTE;// paste
tbb[7].fsState = TBSTATE_ENABLED;
tbb[7].fsStyle = TBSTYLE_BUTTON;
tbb[7].idCommand = ID_EDIT_PASTE;

tbb[8].iBitmap = STD_DELETE;// delete
tbb[8].fsState = TBSTATE_ENABLED;
tbb[8].fsStyle = TBSTYLE_BUTTON;
tbb[8].idCommand = ID_EDIT_DELETE;

tbb[9].iBitmap = STD_FIND;// delete
tbb[9].fsState = TBSTATE_ENABLED;
tbb[9].fsStyle = TBSTYLE_BUTTON;
tbb[9].idCommand = ID_EDIT_FIND;

tbb[10].iBitmap = STD_HELP;// delete
tbb[10].fsState = TBSTATE_ENABLED;
tbb[10].fsStyle = TBSTYLE_BUTTON;
tbb[10].idCommand = ID_HELP_ABOUT;

SendMessage(hTool, TB_ADDBUTTONS, sizeof(tbb)/sizeof(TBBUTTON), (LPARAM)&tbb);

// Create Status bar

hStatus = CreateWindowEx(0, STATUSCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP, 0, 0, 0, 0,
hwnd, (HMENU)IDC_MAIN_STATUS, GetModuleHandle(NULL), NULL);

SendMessage(hStatus, SB_SETPARTS, sizeof(statwidths)/sizeof(int), (LPARAM)statwidths);
SendMessage(hStatus, SB_SETTEXT, 0, (LPARAM)"Notepad ceva mai bun... Versiunea 1.0");
}
break;
case WM_SIZE:
{
HWND hTool;
RECT rcTool;
int iToolHeight;

HWND hStatus;
RECT rcStatus;
int iStatusHeight;

HWND hMDI;
int iMDIHeight;
RECT rcClient;

// Size toolbar and get height

hTool = GetDlgItem(hwnd, IDC_MAIN_TOOL);
SendMessage(hTool, TB_AUTOSIZE, 0, 0);

GetWindowRect(hTool, &rcTool);
iToolHeight = rcTool.bottom - rcTool.top;

// Size status bar and get height

hStatus = GetDlgItem(hwnd, IDC_MAIN_STATUS);
SendMessage(hStatus, WM_SIZE, 0, 0);

GetWindowRect(hStatus, &rcStatus);
iStatusHeight = rcStatus.bottom - rcStatus.top;

// Calculate remaining height and size edit

GetClientRect(hwnd, &rcClient);

iMDIHeight = rcClient.bottom - iToolHeight - iStatusHeight;

hMDI = GetDlgItem(hwnd, IDC_MAIN_MDI);
SetWindowPos(hMDI, NULL, 0, iToolHeight, rcClient.right, iMDIHeight, SWP_NOZORDER);
}
break;
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_COMMAND:
switch(LOWORD(wParam))
{
case ID_FILE_EXIT:
PostMessage(hwnd, WM_CLOSE, 0, 0);
break;
case ID_FILE_NEW:
CreateNewMDIChild(g_hMDIClient);
break;
case ID_FILE_OPEN:
{
HWND hChild = CreateNewMDIChild(g_hMDIClient);
if(hChild)
{
DoFileOpen(hChild);
}
}
break;
case ID_FILE_PRINT:
//PostMessage(hwnd, WM_PRINT, 0, 0);
break;
case ID_FILE_CLOSE:
{
HWND hChild = (HWND)SendMessage(g_hMDIClient, WM_MDIGETACTIVE,0,0);
if(hChild)
{
SendMessage(hChild, WM_CLOSE, 0, 0);
}
}
break;
case ID_EDIT_FIND:
// find
break;
case ID_FORMAT_FONT:
{
HWND hChild = (HWND)SendMessage(g_hMDIClient, WM_MDIGETACTIVE,0,0);
DoSelectFont(hChild);
//SendDlgItemMessage(hEdit, IDC_CHILD_EDIT, WM_SETFONT, (WPARAM)g_hfFont, TRUE);
SendMessage (hChild, WM_SETFONT, (WPARAM) GetStockObject (DEFAULT_GUI_FONT), 0);
InvalidateRect(hChild, NULL, TRUE);
UpdateWindow(hChild);
}
break;
case ID_WINDOW_TILE:
SendMessage(g_hMDIClient, WM_MDITILE, 0, 0);
break;
case ID_WINDOW_CASCADE:
SendMessage(g_hMDIClient, WM_MDICASCADE, 0, 0);
break;
case ID_HELP_ABOUT:
{
int ret = DialogBox(GetModuleHandle(NULL),
MAKEINTRESOURCE(IDD_ABOUT), hwnd, AboutDlgProc);
if(ret == -1){
MessageBox(hwnd, "Dialog failed!", "Error",
MB_OK | MB_ICONINFORMATION);
}
}
break;
default:
{
if(LOWORD(wParam) >= ID_MDI_FIRSTCHILD)
{
DefFrameProc(hwnd, g_hMDIClient, WM_COMMAND, wParam, lParam);
}
else
{
HWND hChild = (HWND)SendMessage(g_hMDIClient, WM_MDIGETACTIVE,0,0);
if(hChild)
{
SendMessage(hChild, WM_COMMAND, wParam, lParam);
}
}
}
}
break;
default:
return DefFrameProc(hwnd, g_hMDIClient, msg, wParam, lParam);
}
return 0;
}

LRESULT CALLBACK MDIChildWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(msg)
{
case WM_CREATE:
{
HFONT hfDefault;
HWND hEdit;

// Create Edit Control

hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, "EDIT", "",
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
0, 0, 100, 100, hwnd, (HMENU)IDC_CHILD_EDIT, GetModuleHandle(NULL), NULL);
if(hEdit == NULL)
MessageBox(hwnd, "Could not create edit box.", "Error", MB_OK | MB_ICONERROR);

hfDefault = GetStockObject(DEFAULT_GUI_FONT);
SendMessage(hEdit, WM_SETFONT, (WPARAM)hfDefault, MAKELPARAM(FALSE, 0));
}
break;
case WM_MDIACTIVATE:
{
HMENU hMenu, hFileMenu;
UINT EnableFlag;

hMenu = GetMenu(g_hMainWindow);
if(hwnd == (HWND)lParam)
{ //being activated, enable the menus
EnableFlag = MF_ENABLED;
}
else
{ //being de-activated, gray the menus
EnableFlag = MF_GRAYED;
}

EnableMenuItem(hMenu, 1, MF_BYPOSITION | EnableFlag);
EnableMenuItem(hMenu, 2, MF_BYPOSITION | EnableFlag);
EnableMenuItem(hMenu, 3, MF_BYPOSITION | EnableFlag);

hFileMenu = GetSubMenu(hMenu, 0);
EnableMenuItem(hFileMenu, ID_FILE_SAVEAS, MF_BYCOMMAND | EnableFlag);
EnableMenuItem(hFileMenu, ID_FILE_CLOSE, MF_BYCOMMAND | EnableFlag);
EnableMenuItem(hFileMenu, ID_FILE_PRINT, MF_BYCOMMAND | EnableFlag);

DrawMenuBar(g_hMainWindow);
}
break;
case WM_COMMAND:
switch(LOWORD(wParam))
{
case ID_FILE_OPEN:
DoFileOpen(hwnd);
break;
case ID_FILE_SAVEAS:
DoFileSave(hwnd);
break;
case ID_FILE_PRINT:
//SendDlgItemMessage(hwnd, IDC_CHILD_EDIT, WM_PRINT, 0, 0);
break;
case ID_EDIT_UNDO:
SendDlgItemMessage(hwnd, IDC_CHILD_EDIT, WM_UNDO, 0, 0);
break;
case ID_EDIT_CUT:
SendDlgItemMessage(hwnd, IDC_CHILD_EDIT, WM_CUT, 0, 0);
break;
case ID_EDIT_COPY:
SendDlgItemMessage(hwnd, IDC_CHILD_EDIT, WM_COPY, 0, 0);
break;
case ID_EDIT_PASTE:
SendDlgItemMessage(hwnd, IDC_CHILD_EDIT, WM_PASTE, 0, 0);
break;
case ID_EDIT_DELETE:
SendDlgItemMessage(hwnd, IDC_CHILD_EDIT, WM_CLEAR, 0, 0);
break;

}
break;
case WM_SIZE:
{
HWND hEdit;
RECT rcClient;

// Calculate remaining height and size edit

GetClientRect(hwnd, &rcClient);

hEdit = GetDlgItem(hwnd, IDC_CHILD_EDIT);
SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom, SWP_NOZORDER);
}
return DefMDIChildProc(hwnd, msg, wParam, lParam);
default:
return DefMDIChildProc(hwnd, msg, wParam, lParam);

}
return 0;
}

BOOL SetUpMDIChildWindowClass(HINSTANCE hInstance)
{
WNDCLASSEX wc;

wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = MDIChildWndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON1));
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_3DFACE+1);
wc.lpszMenuName = NULL;
wc.lpszClassName = g_szChildClassName;
wc.hIconSm = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON1));

if(!RegisterClassEx(&wc))
{
MessageBox(0, "Could Not Register Child Window", "Oh Oh...",
MB_ICONEXCLAMATION | MB_OK);
return FALSE;
}
else
return TRUE;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASSEX wc;
HWND hwnd;
MSG Msg;

InitCommonControls();

wc.cbSize = sizeof(WNDCLASSEX);
wc.style = 0;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON1));
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName = MAKEINTRESOURCE(IDR_MAINMENU);
wc.lpszClassName = g_szClassName;
wc.hIconSm = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON1));

if(!RegisterClassEx(&wc))
{
MessageBox(NULL, "Window Registration Failed!", "Error!",
MB_ICONEXCLAMATION | MB_OK);
return 0;
}

if(!SetUpMDIChildWindowClass(hInstance))
return 0;

hwnd = CreateWindowEx(
0,
g_szClassName,
"Notepad un pic mai bun:)",
WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,
CW_USEDEFAULT, CW_USEDEFAULT, 800, 600,
NULL, NULL, hInstance, NULL);

if(hwnd == NULL)
{
MessageBox(NULL, "Window Creation Failed!", "Error!",
MB_ICONEXCLAMATION | MB_OK);
return 0;
}

g_hMainWindow = hwnd;

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

while(GetMessage(&Msg, NULL, 0, 0) > 0)
{
if (!TranslateMDISysAccel(g_hMDIClient, &Msg))
{
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
}
return Msg.wParam;
}

i guess the problem is here:
case ID_FORMAT_FONT:
{
HWND hChild = (HWND)SendMessage(g_hMDIClient, WM_MDIGETACTIVE,0,0);
DoSelectFont(hChild);
//SendDlgItemMessage(hEdit, IDC_CHILD_EDIT, WM_SETFONT, (WPARAM)g_hfFont, TRUE);
SendMessage (hChild, WM_SETFONT, (WPARAM) GetStockObject (DEFAULT_GUI_FONT), 0);
InvalidateRect(hChild, NULL, TRUE);
UpdateWindow(hChild);
}
but i still don't know how to make it work. can anyone please help me?

I don't understand how to set keyboard hooks. Can someone simplify?

Mon, 02 Jul 2007 13:53:36 -0700

I don't understand how to set keyboard hooks. Can someone simplify?
http://msdn2.microsoft.com/en-us/library/ms644960.aspx
http://www.codeproject.com/dll/keyboardhook.asp

All I want to know is how to set a keyboard hook for the "F2" button.
And how to show a messagebox everytime "F2" is pressed.
If someone writes a code that does only that I think I can understand.

Thank you for your help
//ColacX

How to create a windows short-cut and place it in autostart-folder?

Sun, 01 Jul 2007 13:28:25 -0700

How to create a windows short-cut and place it in autostart-folder?
I know that shortcuts has the filextension .lnk

But how to make the program specify the target for the shortcut?

How do I recive key and mouse commands, while in other apps?

Sun, 01 Jul 2007 13:14:42 -0700

How do I recive key and mouse commands, while in other apps?

GetKeyState(VK_F1) can be used if it's repeted with 10ms interval.
But that doesn't seem effective.
Anyother way I can recive commands while a diffrent application is active?

Something about win32 Hooks?

How do I simulate key commands?

Sun, 01 Jul 2007 13:08:05 -0700

How do I simulate key commands?

The code for simulating mousecommands looks like:

mouse_event(MOUSEEVENTF_LEFTDOWN|MOUSEEVENTF_LEFTU
P,0,0,0,0);

How to minimize physical and virtual memory consumption

Wed, 20 Jun 2007 01:47:36 -0700

Hello All,

I have a Window service developed using Visual Studio .Net 2003. I am using VC++ .Net for the service development. The physical and virtual memory consumption is very high. How should i minimize this memory consumption. Please give me some clue to achieve this.

Thanks

.NET deployment question

Wed, 13 Jun 2007 13:07:50 -0700

Hi

I am very new to the .net framework; I have written a program that works fine on my computer but as soon as I deploy it on another computer the program requests a download of the .net framework.
I then created a setup file but it does not seem to link the relevant files.
I followed an online instruction on how to use the setup wizard for deployment. In that example the solution platform was .NET whereas on my computer I can only set it to win32, 64bit.. but not .NET. Is this the reason it is not deploying? if so how do I get a .NET solution platform into the configuration manager?

(I am using a visual studio 2005 standard edition (academic version))

Thanks in advance

passing data to a form in another thread

Thu, 24 May 2007 09:26:04 -0700

I am a "lucky" guy. My boss has told me to program in C++ in .NET.

I need to do this:

1. When I click on a button in my windows form, a separate managed thread must be created. This I have done and it works fine.
2. The new thread shall communicate with external devices over a CAN bus. Data received on the CAN bus must be passed back to windows form thread, so that it can be displayed in a textbox. This is what causes me problems.

Can anyone help me with a simple example of how to make a callback from a managed C++ thread to a managed C++ windows form thread?

any help will be much appreciated.

Thanks,
Christian

Assigning address of a variable in VC# to one in VC++

Wed, 16 May 2007 18:07:13 -0700

Hi,

I have a VC#.NET DLL (Visual Studio 2005), which runs a simple UDP server. It receives position updates from the client, and sends images from a folder in real-time accordingly. I have added this DLL to a virtual 3D enviornment, written in VC++.NET (Visual Studio 2005).

This images being sent to the client are created,rendered and stored by the VC++ application. Hence, when the DLL receives the updates from the client, it has to inform the VC++ application to render and save the required image at the required position.

Initially I had a public variable in the DLL, which was set to true when an update was received. I was creating an instance of the DLL class in VC++ application and checking the DLL variable in a while(true) loop (within a thread). Even though this operation was taking place in a thread, it really slowed the server down (I have no idea why this was happening).

So, I decided to remove the thread. I wrote the following function in VC#, which returns the address of the variable.

        public unsafe int* ReturnAddressPositionUpdate()
        {
            fixed(int* ReturnValue = &ReceivedPositionUpdate)
            {
                return ReturnValue;
            }
      
        }

I am calling this function from the VC++ code as:

NewPosition =c->ReturnAddressPositionUpdate();

(where c is the instance of the VC# class, and NewPosition is the local VC++ variable, both are declared as int)

When I debug the code, I get the same address for both the variables( that is, the one in VC# and the one in VC++), yet when the variable is updated by VC# client, the if(*NewPosition != 0) statement in VC++ does not detect the update (The if () statement is being called recursively, so it keeps on checking, yet it never detects the updated variable value, yet during debug the value does get updated in VC#).

Kindly help me out here.

Thanks

random numbers

Sun, 29 Apr 2007 11:37:45 -0700

i'm having trouble finding a function that randomizes an array or generates a random number in C++. Please help!!

all i know at the moment is the random_shuffle function...

#include <algorithm> // header used for shuffle
random_shuffle(start, end, pointer_to_unary_function<int, int>(Rand));

...but i still don't know exactly how to use it. I just need some pointers on generating random numbers. Thanks in advance.
"I am a Slave, and a Master"-Slipknot

Hi I need maps

Mon, 16 Apr 2007 09:42:34 -0700

Hello, I have to make a software to calculate and show the effects of Nuclear explotions on the ground. For that , I need to use a map design tool or a map-database. Does anybody know a practical way of using map in a software. Where should I start?? Do you know any tool or ready map for this ?? thank you.

Allocation and deallocation of SMO objects

Mon, 09 Apr 2007 08:38:56 -0700

I have difficulty releasing allocated resources.
I provide code for this item. My username in this site is azure.
Check for AllocDeallocSMO contribute code: my address is inside txt file.

regards

Trevisan Andrea

Colors in c++

Tue, 23 Jan 2007 19:41:20 -0700

This message was edited by Meister_Dew at 2007-1-23 19:42:4

Ive had some trouble finding a way to put certain colored pixels in the 'console application' (looks like the dos-prompt screen) window instead of the 'windows application' window.
I found the SetPixel function and i keep getting errors like "error c2373: 'setpixel': redefinition; blah blah blah".

This is my sample...

//the header needed
#include <windows.h>

using namespace std;

int main()
{
int Xpos,Ypos;

// not really sure what is supposed to go to the 'HDC hdc' spot
SetPixel(HDC hdc, Xpos, Ypos, RGB(255,0,0)); // red color at x and y
// position
return 0;
}

this is just a sample to understand how to use this function.
if you have any tips regarding this is appreciated
thanks...

"I am a Slave, and a Master"-Slipknot

database access

Sat, 21 Oct 2006 03:53:25 -0700

i have a project that requires me to use C++ to retrieve info from a relational database. my problem is that i'm not a very accomplished programmer and i know next to nothing about databases and don't have the time to learn it all, so my question is which type of database is the easiest to access with C++ and why? i tried it with an access database using ADO and it wasn't working out very well MFC OLE was the closest i got to it but i saw someone do with MySQL and i'm thihnkin about switching but i wanna know if there is an better type of database to use and why? the database should have over 100 records with 10 feilds and the database should be able to hoold the lyrics for songs among other song information. i'm sorry if this message should have been posted in the database area but i didn't know which database type to put it in. help

Develope COM in Visual C++ 2005

Thu, 19 Oct 2006 23:39:20 -0700

How can i develope COM component in the Visual C++ 2005?
Can you give some site or recommend any tutorial for this?

Thank you in advance for your help...