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In the future you should not reply to yourself. You are lucky that I review my old threads... I did not get notification of your response because you replied to yourself. Anyway I wrote a quick and dirty sample for you. In this example I am creating an instance of CMD.EXE and writind the Dir command to its STDIN pipe. I then use MessageBox to show the results.
#include "stdafx.h"
#include <windows.h>
#include <tchar.h>
#include <stdio.h>
#include <process.h>
#pragma comment(lib,"user32.lib")
HANDLE g_hChildStd_IN_Rd = NULL;
HANDLE g_hChildStd_IN_Wr = NULL;
HANDLE g_hChildStd_OUT_Rd = NULL;
HANDLE g_hChildStd_OUT_Wr = NULL;
unsigned __stdcall ReadCMDThread(void* pArguments)
{
DWORD dwAvailable =0;
DWORD bytesRead =0;
CHAR szOut[4096] = {0};
while(0 == bytesRead)
{
PeekNamedPipe(g_hChildStd_OUT_Rd,szOut,sizeof(szOut),&bytesRead,&dwAvailable,NULL);
if(0 != bytesRead)
{
Sleep(1000);
ReadFile(g_hChildStd_OUT_Rd,szOut,sizeof(szOut),&bytesRead,NULL);
::MessageBoxA(NULL,szOut,"",MB_OK);
break;
}
}
return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
DWORD bytesRead;
DWORD exitcode;
PROCESS_INFORMATION pi;
STARTUPINFO si;
SECURITY_ATTRIBUTES sa;
ZeroMemory(&sa,sizeof(sa));
sa.nLength=sizeof(SECURITY_ATTRIBUTES);
sa.bInheritHandle=TRUE;
CreatePipe(&g_hChildStd_IN_Rd,&g_hChildStd_IN_Wr,&sa,0);
CreatePipe(&g_hChildStd_OUT_Rd,&g_hChildStd_OUT_Wr,&sa,0);
ZeroMemory(&si,sizeof(si));
GetStartupInfo(&si);
si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
si.hStdOutput = g_hChildStd_OUT_Wr;
si.hStdError = g_hChildStd_OUT_Wr;
si.hStdInput = g_hChildStd_IN_Rd;
si.wShowWindow = SW_HIDE;
BOOL bSuccess = CreateProcess(
_T("C:\\windows\\system32\\cmd.exe"),
NULL,
NULL,
NULL,
TRUE,
CREATE_NEW_CONSOLE,
NULL,
NULL,
&si,
&pi);
UINT threadID;
HANDLE hThread = (HANDLE)_beginthreadex(NULL,0,&ReadCMDThread,NULL,0,&threadID);
Sleep(500);
if(INVALID_HANDLE_VALUE != hThread)
{
DWORD dwWritten = 0;
CHAR szIN[4096];
strcpy(szIN,"dir\n");
WriteFile(g_hChildStd_IN_Wr,szIN,strlen(szIN),&dwWritten,NULL);
WaitForSingleObject(hThread,INFINITE);
CloseHandle(hThread);
strcpy(szIN,"exit\n");
WriteFile(g_hChildStd_IN_Wr,szIN,strlen(szIN),&dwWritten,NULL);
}
CloseHandle(g_hChildStd_IN_Rd);
CloseHandle(g_hChildStd_IN_Wr);
CloseHandle(g_hChildStd_OUT_Rd);
CloseHandle(g_hChildStd_OUT_Wr);
return 0;
}
The code is ugly and contains some Sleeps to allow CMD.EXE to initialize. I also use Sleep to wait for the Read pipe to become full. There are probably better ways to do this. Also... on my Windows7 workstation I had problems terminating CMD.exe by closing its handles. Using TerminateProcess is generally not desirable so I opted to write exit to the STDIN stream.
There are some other functions that you might want to get familiar with:
WriteConsoleInput Function[^]
GenerateConsoleCtrlEvent Function[^]
Good Luck,
-David Delaune
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I want to use different activeX files (for instance release/debug) versions and to do so i need to register the activeX according to realtive path (installation will be in different places).
Is there a way to do so, so that both version work?
Thanks,
Eyal
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when you register an ActiveX object, its CLSID is added to HKEY_CLASSES_ROOT/CLSID and a path to the DLL is added below that. so if the debug and release versions use the same CLSIDs for their interfaces (which they typically do), there's no way to have multiple versions, regardless of where the DLLs live.
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Greetings!
We have just started working in VS 2008. Our code, written in C++, often stores SQL select statements in string variables. These strings are often longer than the debugger can display. Is there a way to copy the entire string onto the clipboard so I can paste it into Notepad or an SQL command window or some such thing?
Thank you very much!
RobR
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Use your right mouse button to click on the value, then select "copy value"
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there's usually a little magnifying glass next to the short string display, in the debugger watch windows. clicking that will bring up a window (the "visualizer") with the full text.
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Hi. Well.. I need to add some tooltips to my main window (CDialog).
So... I do this in OnInit
bool test21=TTC.Create(this);
theApp.tooltip=&(TTC);
m_but.MoveWindow(0,0,500,500);
bool test11=theApp.tooltip->AddTool(m_but,"Cool?");
TTC.Activate(TRUE);
and
BOOL MainDial::PreTranslateMessage(MSG* pMsg)
{
if (NULL != theApp.tooltip)
theApp.tooltip->RelayEvent(pMsg);
return CDialog::PreTranslateMessage(pMsg);
}
Appears a great button, but hint doesn't. Why? Any idea? Smthng that i'am missing? Huh?
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Could it be that in your OnInitDialog the TTC variable, which is i assume a CToolTipCtrl a local variable? If so then when your OnInitDialog is done and returns, TTC will be deleted and its destructor also destroys the tooltip. Of course that you don't get a crash in PreTranslateMessage suggests this is not the case but it might happen. Try making your TTC a member of the dialog class if it is not and use that instance instead of storing a pointer at it.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <
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Well.. My CToolTipCtrl is member of MainDial of course. And by the way i already made it work with this button, but now i have another trouble. I create lots of dynamic buttons, inside of MPictureBox.Create i write:
BOOL result = CButton::Create(lpszCaption,dwStyle,rect,pParentWnd,nID);
this->SetParent(pParentWnd);
theApp.tooltip->AddTool(this,"HM?!");
but once again it doesn't help. Hint doesn't appear. Any idea?
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You probably need to relay messages received by your picture box also to the tooltip control not only ones targeted at your dialog box. Aside of that, no idea. Just out of curiosity, what was your first problem?
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <
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My original problem was to make some sort of game. Jackal. It's a board game invented 30-40 years ago at MGU (principal university of Moscow). For now i made it, but it's possible to play it only for humans against humans on the same cpu (hot seat mode). (Later i plan to make net support and cpu gamers). If you want to see what i have done for now drop.io/shchepin/ release.rar (requires redistributable package for vs2008 sp1).
P.S. I intented with
BOOL MPictureBox::PreTranslateMessage(MSG* pMsg)
{
if (NULL != theApp.tooltip)
theApp.tooltip->RelayEvent(pMsg);
return CButton::PreTranslateMessage(pMsg);
}
Didn't helped... =(
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What kind of a control is that picturebox?
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <
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Just like i said before, it's a CButton child.
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Program for multiplication of two matrices.
/* Program for multiplication of two matrices */
# include <stdio.h>
# include <conio.h>
# define ROW 3
# define COL 3
void main()
{
int mat1[ROW][COL],mat2[ROW][COL],mat3[ROW][COL];
int i,j,k;
clrscr();
printf("\n Enter matrix mat1(%dx%d)row-wise:\n ",ROW,COL);
for(i=0;i<ROW;i++)
{
for(j=0;j<COL;j++)
{
scanf("%d",&mat1[i][j]);
}
printf("\n Matrix 1 is %d \n",mat1[i][j]);
printf("\n Enter matrix mat2(%dx%d)row-wise:\n ",ROW,COL);
for(i=0;i<ROW;i++)
{
for(j=0;j<COL;j++)
scanf("%d",&mat2[i][j]);
}
printf("\n Matrix 2 is %d \n",mat2[i][j]);
}
//Multiplication
for(i=0;i<ROW;i++)
for(j=0;j<COL;j++)
{
mat3[i][j]=0;
for(k=0;k<COL;k++)
mat3[i][j]+=mat3[i][j]+mat1[i][k] * mat2[k][j];
}
// End of multiplication
printf("\n The Resultant matrix mat3 is: \n");
for(i=0;i<ROW;i++)
for(j=0;j<COL;j++)
printf("\n %5d",mat3[i][j]);
printf("\n");
getch();
}
maine multiplication ke liye yeh code likha hai par issme koi logical error hai,jo main remove nahi kar paa raha hoo..plzzz help me..
modified on Wednesday, November 11, 2009 8:41 AM
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nobody here is going to do your homework for you.
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I'm not sure whether to laugh or cry. 
Can you do this on paper? If not, then don't bother with trying to code it.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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42. Always. Don't bother calculating, the answer is always 42 
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You are smoking the wrong stuff. Try herbal tea.
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Hello Forum,
I have an C++ Control (RichClient) which contains a .NET Infragistics UltraWinGrid Control. The UltraWinGrid Control isn't repainted correctly, if other controls like Topmenu / or other C++ Windows are displayed and closed on top of the UltraWinGrid Control.
Even for example embedded DateTime Controls in the UltraWinGrid Cells only repaint the parts they cover, if in the method AfterCloseUp parent.Invalidate(true) is called.
Which Strategy could help me out to ensure the repainting of the UltraWinGrid-Parts (in .NET) out of C++, which has been coverd by other C++ controls?
thanks a lot
Sebastian
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Try responding to the underlying window's WM_ERASEBKGND message. That is, if the grid is in a dialog, respond to the dialog's WM_ERASEBKGND message, invalidating the grid there.
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Background: I am an embedded 'C' programmer, with no windows development experience other than simple console applications using Win32. I have developed using classes but mostly in Java. Other than the ubiquitous "Hello World" using Windows Forms and C++, I have limited to no windows programming experience.
Problem:I have a project where I need to interface an embedded controller to a windows application. Ultimately I need to translate input from windows controls into a stream of serial characters. This stream is interpreted by the embedded controller to do "stuff". The serial interface here may be a "real" serial port, or through a USB-Serial converter cable.
I don't have the money to buy comm libraries, I am using the Visual Studio 2008 Express because it is free, and unless it is absolutely necessary, I am not interested in learning another language like C# or Visual Basic. It is difficult enough for a 'C' coder in the embedded world to transition into the windows world of C++. I don't understand the implications of using ATL vs. MFC vs CLR vs Win32, so please be gentle.
I have posed this question now a half a dozen other forums and keep getting references to Visual C++ 2005 or 2006 code that will not compile in the .NET vernacular (did I get the nuance correct?) Or admonishments to "Just use ___" (insert any of J#, C#, VB or PHP). What used to be a simple:"fputc(com1, "My String");" is now a multilayered, insulated, managed into obscurity onion of code.
If I understand it correctly, in the Win32 vernacular, there is a serial port class, that can be used to instantiate an object that has methods for determining if a port exists, setting port parameters (like BRPY- Baud rate and parity, and flow control) as well as mapping the "<<" and ">>" operators to accommodate inserting/retrieving objects (like a string) into the stream.
I have yet to see an example of code, written using Win32, that will demonstrate moving a single character to a serial port, using the Visual Studio 2008 toolbox.
I need to lean on the experience of more informed programmers for guidance and direction to help me to the next step. Any help or direction (even if it is an admonishment to "RTFM" as long as the requisite "FM" is given) would be greatly appreciated.
David
Melbourne, Florida
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dk-info wrote: Problem:I have a project where I need to interface an embedded controller to a windows application. Ultimately I need to translate input from windows controls into a stream of serial characters. This stream is interpreted by the embedded controller to do "stuff". The serial interface here may be a "real" serial port, or through a USB-Serial converter cable.
See here.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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Thank you for the rapid response.
I used a portion of the code you presented to illustrate how to so simple serial output from a Win32 console application. I was able to create a Handle using this code:
#include <iostream>
#include <windows.h>
#include "serialPlay.h"
using namespace std;
int main(void)
{
HANDLE hCom;
DWORD dwRet;
hCom = ::CreateFile(
TEXT("\\\\.\\COM1"),
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,
NULL);
if(hCom == INVALID_HANDLE_VALUE) {
cout << "Cannot open serial port COM1\n";
return PROGRAM_FAILURE;
} else {
WriteFile( hCom, "This is testfile", 16, &dwRet, NULL );
}
return PROGRAM_SUCCESS;
}
It compiles and runs using Visual C++ in Visual Studio 2008 Express, in a Win32 console project without error, and using another computer and Hyper Terminal set to 9600 Baud, N-8-1 it does indeed transmit the message "This is testfile".
Looking to do more, here is a followup question:
I had to replace the "_T" macro with "TEXT" to resolve a compiler error; what is the "_T" macro?
Thanks again for helping me with this question.
Cheers!
David
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dk-info wrote: what is the "_T" macro?
It's declared in the tchar.h header.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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Thanks for the help, now another question, using only the win32 console, how do you set the com port parameters?
The code you gave is the basis for setting up serial threads (if I understand it correctly) in a windows application. I am not yet ready to try to build a windows application that can interface to a serial port, I would need an example application, tailored for Win32 that will illustrate accessing these comm resources from within the application.
I don't understand enough to solve the compiler errors when I try to piece your excellent tutorial code using the Visual Studio C++ express 2008 environment and Win32.
Would you be so kind as to give a complete example of an application that can send serial characters to a com port and receive them also?
Thanks again for the excellent tutorial,
David
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