C / C++ / MFC

Mark Salsbery11-Jun-07 8:41

11-Jun-07 8:41

For NT 4.0+ this combination of APIs may help...

#include <psapi.h>
 ...
 
// Shown without error handling..
 
DWORD dwProcessId;
::GetWindowThreadProcessId(hwnd, &dwProcessId);
 
HANDLE hProcess = ::OpenProcess(PROCESS_VM_READ | PROCESS_QUERY_INFORMATION, FALSE, dwProcessId);
 
TCHAR szPathname[MAX_PATH];
::GetModuleFileNameEx(hProcess, NULL, szPathname, MAX_PATH * sizeof(TCHAR));
 
::CloseHandle(hProcess);

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Giorgi Dalakishvili11-Jun-07 8:52

Giorgi Dalakishvili

11-Jun-07 8:52

Thanks I'll try it but I will have to convert that to c# first.
After posting this I found GetWindowModuleFileName Function which takes in hwnd of the window and return the full path and file name of the module associated with the specified window handle so can it be solution?

my articles

Mark Salsbery11-Jun-07 8:55

11-Jun-07 8:55

Giorgi Dalakishvili wrote:
After posting this I found GetWindowModuleFileName Function

Looks easier than my method! Smile | :)

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Mark Salsbery11-Jun-07 9:09

11-Jun-07 9:09

Giorgi Dalakishvili wrote:
but I will have to convert that to c# first

The System.Diagnostics namespace has the Process and ProcessModule classes but I don't see
a process-from-window method...

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Giorgi Dalakishvili11-Jun-07 9:19

Giorgi Dalakishvili

11-Jun-07 9:19

Mark Salsbery wrote:
The System.Diagnostics namespace has the Process and ProcessModule classes

Yes I'm aware about them but I will have only hwnd and I don't think I'll be able to solve the problem without winapi

my articles

Mark Salsbery11-Jun-07 9:22

Automatically upgrade firmware for home routers

11-Jun-07 9:22

Cool. Thanks for pointing out the GetWindowModuleFileName() API!

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

capulett11-Jun-07 6:25

capulett

11-Jun-07 6:25

I have an application which needs to upgrade firmwares of home routers automatically. I sniffed the outside packets when I click "upgrade" button and put everything I got in the code and do an HTTP Post function(not API. It works for other senario.). But it does not work. My question is why it does not work and how to make it work. Is it because HTTP protocol does not allow file upload like this? I have to have a web browser or email application to assist the file uploading?? Please advise me.

My code looks like this:
virtual int UpgradeFirmware(CString firmwareImage, CString RouterIP, CString Username, CString Password)
{
CString url = "http://" + RouterIP + "/upgrade.cgi";
CString ref = "http://" + RouterIP + "/Upgrade.htm";

CString request = "-----------------------------7d71f91e504ea";
request += "\nContent-Disposition: form-data; name=\"UpgradeFile\";";
request += " filename=\"C:\\firmware\\Netgear WGR614 V2\\wgr614v3_v2_16rc4.chk\"";
request += "\nContent-Type: application/octet-stream";
request += "\n-----------------------------7d71f91e504ea--";

CString page = HTTPPost(url, request, Username, Password, ref);
if(page.Find("Settings are successful.")>0)
return 0;
}

capulett

Re: Automatically upgrade firmware for home routers

David Crow11-Jun-07 6:39

Re: Automatically upgrade firmware for home routers

11-Jun-07 6:39

capulett wrote:
CString page = HTTPPost(url, request, Username, Password, ref);

At this point, are url, request, and ref exactly how you expect them to be (e.g., commas, dashes, spaces, slashes)?

Does HTTPPost() return any sort of fail/success indicator?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

capulett11-Jun-07 7:03

capulett

11-Jun-07 7:03

Thanks for replying.

Yes, the url, request, and ref are exactly how I expect them to be. In my application, I use url, ref, request, and HTTPPost() very often to do some other operations. Only the updatefirmware operation fails. I suspect it has something to do with the file uploading. But I don't have any experience of it.

From the network sniffer, there is some mess following:
Content-Type: application/octet-stream.
It's the file which is uploaded. But I cannot put it in my code and it won't be right to put the messy stuff in the code. Do I need a way to uplode the file other than HTTPPost()?

Usually the HTTPPost() returns nothing. But it should return something indicates the upgrade is in progress...

I really don't know how to solve this. I will appreciate your help. Thanks a lot.

Export File to Excel with CSpreadSheet Class

mikobi11-Jun-07 4:55

mikobi

11-Jun-07 4:55

Dear Sir,

This Class help me very much.

But I want now to have a personal header(Name of society, date and so on) on my Excell Sheet.

How can I do So that my hearder line of fields begin in the 5th line for example.

I learn My self

Re: Export File to Excel with CSpreadSheet Class

David Crow11-Jun-07 6:05

11-Jun-07 6:05

Did you consider asking your question here?

mikobi wrote:
But I want now to have a personal header(Name of society, date and so on) on my Excell Sheet.

So can't you just assign values to those cells?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Edit control

tom groezer11-Jun-07 4:47

11-Jun-07 4:47

How do I get to know read individual lines from a multiline edit control?
Let me know the chunk of code. I do know of windows API to achieve the same.

David Crow11-Jun-07 6:02

11-Jun-07 6:02

tom groezer wrote:
llinelength = ::SendMessage(hwnd, (UINT) EM_GETLINE, index, (LPARAM)(LPCTSTR)buffer);

What is index?

tom groezer wrote:
Now I have to use the a call to SendMessage with EM_GETLINE. How do I do that?

What exactly is your question: how to use the return value of EM_GETLINECOUNT, or how to send the EM_GETLINE message?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

tom groezer11-Jun-07 6:08

11-Jun-07 6:08

This is the way i have implemented to read the lines from edit control.

LRESULT l_numEvents = ::SendMessage(hwnd, (UINT)EM_GETLINECOUNT, 0, 0);
LRESULT llinelength = ::SendMessage(hwnd, (UINT)EM_LINELENGTH, index, 0); index = 0 for first item
llinelength = ::SendMessage(hwnd, (UINT)EM_GETLINE, index, (LPARAM)(LPCTSTR)tbuffer);

I'm not able to execute the last staement properly.

MSDN says that the last parameter is "A pointer to the buffer that receives a copy of the line. Before sending the message, set the first word of this buffer to the size, in TCHARs, of the buffer. For ANSI text, this is the number of bytes; for Unicode text, this is the number of characters. The size in the first word is overwritten by the copied line.

How do I achieve what is mentioned in italisized code.

David Crow11-Jun-07 6:22

11-Jun-07 6:22

Wouldn't it make more sense to just send the control a WM_GETTEXT message? You can then parse the buffer (as individual lines) as necessary.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

tom groezer11-Jun-07 8:29

11-Jun-07 8:29

How do I parse independent lines? is it something ot do with \r\n

David Crow11-Jun-07 8:35

11-Jun-07 8:35

It could be \r or \n or a combination of both.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

tom groezer11-Jun-07 21:04

11-Jun-07 21:04

Actually I wish to read one line at a time, do some processing and save it to the file. A multileine CEdit control do provide the logic to read one line at a time.

David Crow12-Jun-07 2:30

Find Parent Dialog data in custom control on dialog? [modified]

12-Jun-07 2:30

tom groezer wrote:
A multileine CEdit...

You're using MFC? Why in the world would you be bothering with sending messages then? Confused | :confused:

If you really want to get one line at a time from the control, see CEdit::GetLine().

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

ldsdbomber11-Jun-07 4:00

ldsdbomber

11-Jun-07 4:00

I've used a customised list control that does alternate row shading but am also reading an article on how to get red text programmatically. As I'd like this too, I have added the necessary handling of NM_CUSTOMDRAW etc (well, I've found it in the shaded row source file),

what I want to do now is

if(some member variable in my single dialog)
then write this line in red

otherwise
write it in black

since I am in the function
void CColoredListCtrl::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)

what I want to know is how I can "get at" the parent dialog itself that has this listcontrol within it

something like

<getatthe cmaindialog="">.accessvariable

maybe

CWnd *GetParent(); is the first part, but then how do you get at the member variable (integer array that's within the parent dialog

I then thought of something like

CTestFolderBrowseDlg* myDlg = (CTestFolderBrowseDlg*)mainDlg;

and then using mainDlg as normal, but I can't include the header for my main dialog in this source file without it complaining, so I think I'm not doing this in the proper manner

for example if I put
#include "TestFolderBrowseDlg.h"

into ColoredListCtrl.cpp

it starts complaining about

testfolderbrowsedlg.h(33) : error C2065: 'IDD_TESTFOLDERBROWSE_DIALOG' : undeclared identifier
testfolderbrowsedlg.h(33) : error C2057: expected constant expression

which aren't present without the include to TestFolderBrowseDlg, but then the cast to myDlg from CWnd doesn't work

-- modified at 12:16 Monday 11th June, 2007

Re: Find Parent Dialog data in custom control on dialog?

ldsdbomber11-Jun-07 6:21

ldsdbomber

11-Jun-07 6:21

OK, this is what I am now trying in the function from the alternate shaded list view

void CColoredListCtrl::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)

...

////////////

LVITEM lvi;
memset(&lvi, 0, sizeof(lvi));

lvi.mask = LVIF_TEXT;
lvi.state = 0;
lvi.stateMask = 0;

unsigned char LVtext[16];
lvi.cchTextMax = 15;
// Length of string to be copied into pszText member

lvi.pszText = (LPTSTR)LVtext;
// String buffer for pszText member

// Nota bene : starts at zero (item) and ends at 'lCols' (last subitem) :
lvi.iSubItem = 5; // 6 columns in total, I assume that means 5 is the last one, also tried 4

// Retrieve the text in an item or a subitem of line 'i' :
mainDlg->SendMessage(LVM_GETITEMTEXT, (WPARAM) 0, (LPARAM) &lvi);

CString resultText(LVtext);
if(!strcmp((LPCSTR)LVtext, "Failed"))
{
do stuff...
}
///////////

it's never going into the do stuff bit. "Failed" is definitely being written/drawn in the listview report in the last column as per a SetItem call.

It would be easier if I could work out how to just get at data belonging to the dialog class itself that holds the listview control, but failing that, am not sure what I am doing wrong here.

Re: Find Parent Dialog data in custom control on dialog?

Mark Salsbery11-Jun-07 6:54

Re: Find Parent Dialog data in custom control on dialog?

11-Jun-07 6:54

ldsdbomber wrote:
mainDlg->SendMessage(LVM_GETITEMTEXT, (WPARAM) 0, (LPARAM) &lvi);

The wParam should be the index of the item - are you always looking at item 0?

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

ldsdbomber11-Jun-07 21:27

ldsdbomber

11-Jun-07 21:27

no, I tried passing iRow first and that didn't work either (iRow presumably is the right parameter)

void CColoredListCtrl::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)
{
*pResult = 0;

LPNMLVCUSTOMDRAW lplvcd = (LPNMLVCUSTOMDRAW)pNMHDR;
int iRow = lplvcd->nmcd.dwItemSpec;

switch(lplvcd->nmcd.dwDrawStage)
{
case CDDS_PREPAINT :
{
*pResult = CDRF_NOTIFYITEMDRAW;
return;
}

// Modify item text and or background
case CDDS_ITEMPREPAINT:
{

// ACCESS errTable here, and change font accordingly
CWnd* mainDlg = GetParent();
// CTestFolderBrowseDlg* myDlg = (CTestFolderBrowseDlg*)mainDlg;

////////////

LVITEM lvi;
memset(&lvi, 0, sizeof(lvi));

lvi.mask = LVIF_TEXT;
lvi.state = 0;
lvi.stateMask = 0;

unsigned char LVtext[16];
lvi.cchTextMax = 15;
// Length of string to be copied into pszText member

lvi.pszText = (LPTSTR)LVtext;
// String buffer for pszText member

// Nota bene : starts at zero (item) and ends at 'lCols' (last subitem) :
lvi.iSubItem = 5;

// Retrieve the text in an item or a subitem of line 'i' :
mainDlg->SendMessage(LVM_GETITEMTEXT, (WPARAM) iRow, (LPARAM) &lvi);

CString resultText(LVtext);
if(!strcmp((LPCSTR)LVtext, "Failed"))
{
do something here...
}
///////////

lplvcd->clrText = RGB(0,0,0);
// If you want the sub items the same as the item,
// set *pResult to CDRF_NEWFONT
*pResult = CDRF_NOTIFYSUBITEMDRAW;
return;
}

// Modify sub item text and/or background
case CDDS_SUBITEM | CDDS_PREPAINT | CDDS_ITEM:
{

if(iRow %2){
lplvcd->clrTextBk = m_colRow2;
}
else{
lplvcd->clrTextBk = m_colRow1;
}

*pResult = CDRF_DODEFAULT;
return;
}
}

}

Re: Find Parent Dialog data in custom control on dialog?

Mark Salsbery12-Jun-07 6:31