C / C++ / MFC

Re: Enumerate DLL Exports

1-Dec-06 10:32

I think the Rick York hint resembles mine: just put the static member initialisation in the DLL cpp (you should have one, at least it is not forbidden...) 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.

Enumerate DLL Exports

peterchen1-Dec-06 3:46

peterchen

1-Dec-06 3:46

Is it possible to enumerate the entry points a DLL exports (by name)? How?

TIA
ph

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Mike Dimmick1-Dec-06 4:24

Mike Dimmick

1-Dec-06 4:24

Do you want to just do it yourself, or do you want to write a program that does it?

If you just want to inspect a DLL, use dumpbin from Visual Studio (actually just a wrapper around link.exe) or Dependency Walker[^] (also in the Platform SDK).

If you want to write a program to do it, see An In-Depth Look into the Win32 PE File Format[^] from MSDN Magazine.

Stability. What an interesting concept. -- Chris Maunder

Re: Enumerate DLL Exports

peterchen1-Dec-06 5:08

peterchen

1-Dec-06 5:08

the second link might do it (I was *fo course* hoping for some EnumDllExports Win32 API function.. Roll eyes | :rolleyes:

) - I'm gonna study this next week, thanks Smile | :)

Windows class not created error?

TheDelChop1-Dec-06 3:08

1-Dec-06 3:08

Hi,

I am experiencing some real trouble with a simple windows program that I am trying to create. After running the CreateDialog() function, windows returns the error "Windows class not created". I am having trouble determing what this message is really telling me.

The result of this error message is that after processing the WM_SETFONT message inside the DlgProc for the Dialog Box that it creates, Windows always processes the WM_DESTROY instead of the WM_INITDIALOG which is the next message that my other working windows programs processes which creates and displays the dialog box. I have posted my WinAPI function below:

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine,
int nCmdShow)
{
MSG msg;
HWND mainWnd;

hInst = hInstance; // Make instance available globally
InitCommonControls();

// Create a dummy window so the dialog box can have a parent window, then
// create the dialog box itself.

mainWnd = CreateWindow("", "", 0, 0, 0, 0, 0, NULL,(HMENU)-1, hInstance, 0);

MainDlgBox = CreateDialog(hInstance, MAKEINTRESOURCE(IDD_AURACONNECT), mainWnd, (DLGPROC)DlgProc);

DWORD Err = GetLastError();

SetClassLong(mainWnd,GCL_HICON,IDI_EXE);

// Standard Windows message loop
while(GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}

I understand that I probably don't need to create a dummy window to create a dialog box. Also, I can't post my DlgProc because it is so large and long, but is this the most likely source of this error?

Thank you for anyone who can offer any help.

Joe

CPallini1-Dec-06 3:15

1-Dec-06 3:15

Can you post the code of the DlgProc?
Please use pre tags to post code:
<pre>
...your code here...
</pre>

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.

TheDelChop1-Dec-06 3:17

1-Dec-06 3:17

Ok, its pretty long, but here you go.

<br />
<br />
LRESULT CALLBACK DlgProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)<br />
{<br />
  <br />
  switch(uMsg) <br />
  {<br />
  <br />
  case WM_INITDIALOG:<br />
    <br />
		return TRUE;<br />
<br />
  case WM_COMMAND:<br />
   switch(LOWORD(wParam)) <br />
    {<br />
		<br />
      case IDCANCEL:<br />
			  <br />
		    DestroyWindow(MainDlgBox);<br />
		    PostQuitMessage(0);<br />
<br />
		    return	TRUE;<br />
<br />
		  case IDC_SETIPADDR:	// Adds fucntionality to the close button.<br />
<br />
		    SendDlgItemMessage(MainDlgBox, IDC_IPADDRESS, IPM_GETADDRESS, 0, (LPARAM)(LPDWORD)NewAddr);<br />
<br />
        wsprintf(strAddr,"%d",NewAddr);<br />
<br />
		    SendCommand(&DataSocket, SET_IP_ADDRESS, sizeof(CommandStruct), messageFromHost);<br />
		  <br />
		    strAddr[cSetIP.length] = '\r';<br />
<br />
		    SendCommand(&DataSocket, strAddr, strlen(strAddr), messageFromHost); <br />
<br />
			  MessageBox(NULL,"IP Address has been changed sucessfully","Address Changed",MB_OK);<br />
		    <br />
		    return TRUE;<br />
<br />
<br />
      case IDC_SETIPMASK:<br />
<br />
        SendDlgItemMessage(MainDlgBox, IDC_IPMASK, IPM_GETADDRESS, 0, (LPARAM)(LPDWORD)NewMask);<br />
<br />
        wsprintf(strAddr,"%d",ConnectAddr);<br />
<br />
		    SendCommand(&DataSocket, SET_IP_MASK, sizeof(CommandStruct), messageFromHost);<br />
		  <br />
		    strAddr[cSetMask.length] = '\r';<br />
<br />
		    SendCommand(&DataSocket, strAddr, strlen(strAddr), messageFromHost); <br />
<br />
			  MessageBox(NULL,"IP Mask has been changed sucessfully","Address Changed",MB_OK);<br />
<br />
        return TRUE;<br />
<br />
		    <br />
		  case IDC_CONNECTBTN:<br />
			  <br />
		    WSAStartup(MAKEWORD(2, 0), &wsaData);<br />
		    <br />
		    SendDlgItemMessage(MainDlgBox, IDC_CONNECT, IPM_GETADDRESS,0,<br />
          (LPARAM)(LPDWORD)ConnectAddr); <br />
			  <br />
        wsprintf(strAddr,"%d",ConnectAddr);<br />
		    <br />
		    if(ConnectToSocket(MainDlgBox, &DataSocket, strAddr, DATA_PORT, WINSOCK_DATA_MESSAGE,FD_CONNECT|FD_CLOSE|FD_READ))<br />
          MessageBox(NULL,"Connection attempt with AuraNET Headbox was sucessfull!","Connected with AuraNET",NULL);<br />
      <br />
        else<br />
        { <br />
          if(MessageBox(NULL,"Connection attempt with AuraNET Headbox was unsucessfull!","Not Connected with AuraNET",MB_RETRYCANCEL) == IDRETRY)<br />
            PostMessage(MainDlgBox,WM_COMMAND,(WPARAM)IDC_CONNECTBTN,0);<br />
         <br />
          else<br />
            return TRUE;<br />
        }<br />
      <br />
        EnableWindow(GetDlgItem(MainDlgBox,IDC_DISCONNECTBTN),TRUE);<br />
        EnableWindow(GetDlgItem(MainDlgBox,IDC_SETIPADDR),TRUE);<br />
        EnableWindow(GetDlgItem(MainDlgBox,IDC_SETIPMASK),TRUE);<br />
        EnableWindow(GetDlgItem(MainDlgBox,IDC_GETSTATUS),TRUE);<br />
        EnableWindow(GetDlgItem(MainDlgBox,IDC_CONNECTBTN),FALSE);<br />
		    <br />
		  <br />
		    return TRUE;<br />
<br />
		  case IDC_DISCONNECTBTN:	// This button provides the majority of<br />
								  // functionality for the parsing program.<br />
		    <br />
			  if(!DisconnectFromSocket(&DataSocket))<br />
          if(MessageBox(NULL,"Attempt to disconnect was unsucessful.  Press Retry to attempt to disconnect again, or Cancel to stay connected","Disconnection Failure",MB_RETRYCANCEL) == IDRETRY)<br />
            PostMessage(MainDlgBox,WM_COMMAND,(WPARAM)IDC_DISCONNECTBTN,0);<br />
          else<br />
            return TRUE;<br />
      <br />
      <br />
        WSACleanup();<br />
<br />
        EnableWindow(GetDlgItem(MainDlgBox,IDC_DISCONNECTBTN),FALSE);<br />
        EnableWindow(GetDlgItem(MainDlgBox,IDC_SETIPADDR),FALSE);<br />
        EnableWindow(GetDlgItem(MainDlgBox,IDC_SETIPMASK),FALSE);<br />
        EnableWindow(GetDlgItem(MainDlgBox,IDC_GETSTATUS),FALSE);<br />
        EnableWindow(GetDlgItem(MainDlgBox,IDC_CONNECTBTN),TRUE);<br />
<br />
			  <br />
			  return TRUE;			//  Didn't process a message.<br />
<br />
<br />
      case IDC_PAIR:<br />
<br />
        SendCommand(&DataSocket, SETUP_PAIR, sizeof(CommandStruct), messageFromHost);<br />
<br />
        return  TRUE;<br />
<br />
    <br />
   }<br />
<br />
  return TRUE;<br />
  <br />
  case WINSOCK_DATA_MESSAGE:<br />
     <br />
	  WinsockHeadboxDataMessageLoop(MainDlgBox, wParam , lParam);<br />
    <br />
    return TRUE;<br />
 }<br />
 return FALSE; <br />
<br />
}<br />
<br />

Thank you for looking at this.

CPallini1-Dec-06 6:26

1-Dec-06 6:26

Sorry for the delay, but rebuilding a project with that code took a bit of time.

Anyway I don't get any error on my system, where CreateDialog works correctly.

However, MSDN recommends, for modeless dialog, the following behaviour:

while (GetMessage(&msg, NULL, NULL, NULL)) 
{ 
    if (!IsWindow(hwndGoto) || !IsDialogMessage(hwndGoto, &msg)) 
    { 
        TranslateMessage(&msg); 
        DispatchMessage(&msg); 
    } 
}

to avoid processing not-dialog messages (hwndGoto is the dialog HWND, in the above snippet). I don't know if that helps you.

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.

TheDelChop1-Dec-06 7:26

1-Dec-06 7:26

if you can build a project with no error on your system would you consider zipping it up and sending it to me/ posting it to see where we differ?

CPallini1-Dec-06 7:35

1-Dec-06 7:35

TheDelChop wrote:
would you consider zipping it up and sending it to me

Yes, of course (by the way I need you e-mail address)

TheDelChop wrote:
posting it

I don't know how if it is possible to post zip files via the forum.

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.

TheDelChop1-Dec-06 7:37

1-Dec-06 7:37

JDelCioppio@astromed.com

Thank you so much,

Joe

Mark Salsbery1-Dec-06 7:44

Mark Salsbery

1-Dec-06 7:44

Did you try my suggestion in the reply to your other post?

Try changing

SetClassLong(mainWnd,GCL_HICON,IDI_EXE);

to

SetClassLong(mainWnd,GCL_HICON,LoadIcon(hInstance, MAKEINTRESOURCE(IDI_EXE));

Mark Salsbery1-Dec-06 8:09

Mark Salsbery

1-Dec-06 8:09

Oops...

Should be
SetClassLongPtr(mainWnd, GCL_HICON, (LONG_PTR)LoadIcon(hInstance, MAKEINTRESOURCE(IDI_EXE)));

And your parent window has no window class registered for it?

Try making the dialog style overlapped and create it with parent HWND = NULL.

Mark

Timer Event

braune1-Dec-06 2:00

braune

1-Dec-06 2:00

I have a USB tool that I gets out of sync with the USB handle and locks up my system. Is there a way to set a timer event prior to the execution of the action that sometimes hangs. This way, if it hangs for a give period of time, in the timer event I could abort the commands and reset the tool.

Eric

Re: Timer Event

CPallini1-Dec-06 3:03

Video Capture without ICaptureBuilder

1-Dec-06 3:03

I think your tool will hang the timer too (timers act through windows messages).

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.

nripun1-Dec-06 1:52

nripun

1-Dec-06 1:52

How do i capture video without using ICaptureBUilder?

How to call Original value...

Shah Satish1-Dec-06 1:46

Shah Satish

1-Dec-06 1:46

Hi!!
i am using two method and i have declared variable out side of my method and that variable i am using in both method like ( Cstring mypath)..

Cstring mypath;

void confwebd()
{
mypath = dlg.str ( here i am retriving value "str" from dialouge box and is equal to mypath)

}

Void Webdocu()
{

Here i am using value from Void confwebd ( ie mypath)
}

but when u recall void Webdocu, then value of mypath( in void webdocu ) is not equal to original it was.It changed..

How i can make as original it was... ??

i am not sure, may be have to make global value or what ?? if yes then how?
I know.. it bit complicated to understand but...

Thanking you

Shah Satish

prasad_som1-Dec-06 1:50

prasad_som

1-Dec-06 1:50

Using global is very bad practice.

And this is not complete code for sure. Post complete code if possible. That will help others to understand problem easily.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Shah Satish1-Dec-06 2:10

Shah Satish

1-Dec-06 2:10

Hi!!
This is the code of my project..For exm..First time when i call function then
webdocupath = D:shah\myproject\webdocu\parth...ok now when i will call second time then

D:shah\myproject\webdocu
and so on..

I want at any time webdocupath =D:shah\myproject\webdocu\parth

CString webdocupath,pmysection;

void Confwebd()
{

// TODO: Implement the command
CString szIniFileName,ResFilePath;

GetModuleFileName(hArxInstance,szIniFileName.GetBuffer(MAX_PATH), MAX_PATH);
szIniFileName.ReleaseBuffer();
szIniFileName = szIniFileName.Left(szIniFileName.ReverseFind(_T('\\')) +1) + _T("WebDokuConf.ini");

// When resource from this ARX app is needed, just
// instantiate a local CAcModuleResourceOverride
//CAcModuleResourceOverride resOverride;

CConfWebD dlg(CWnd::FromHandle(adsw_acadMainWnd()));

dlg.m_strFileName = szIniFileName;

//SendDlgItemMessage(dlg,IDC_WEBDLIST,CB_GETCURSEL,0,0);

if(dlg.DoModal() == IDOK)
{
pmysection = dlg.str;

webdocupath = dlg.pstr2;

}

}

void Webdocu()
{

ads_name en;
ads_point pt;
AcDbObjectId entId1;
AcDbEntity *pEnt1;
int rc = acedEntSel(NULL,en,pt);
switch(rc)
{
case RTERROR :
acutPrintf(_T("Invalid object."));
return;
break;
case RTCAN :
acutPrintf(_T("User canceled."));
return;
break;
}

AcDbMText *myText;
AcDbBlockReference *pMyBlock;
acdbGetObjectId(entId1, en);

acdbOpenAcDbEntity(pEnt1,entId1,AcDb::kForRead);
acutPrintf(_T("\nClass is:"));
acutPrintf(pEnt1->isA()->name());

if((pEnt1->isKindOf(AcDbBlockReference::desc()))){
pMyBlock = AcDbBlockReference::cast(pEnt1);

acutPrintf(_T("\nSelected Object is block:"));

// Now get the attribs in the block

AcDbObjectIterator *pAttrIt;
AcDbAttribute *pAttrib;

pAttrIt= pMyBlock->attributeIterator();

CString x1, x2;

for (pAttrIt->start(); !pAttrIt->done(); pAttrIt->step()) {

pMyBlock->openAttribute(pAttrib,pAttrIt->objectId(),AcDb::kForRead,Adesk::kFalse);

x1 = pAttrib->textString();
acutPrintf(x1);

acutPrintf(_T("\n"));
pAttrib->close();

}

acutPrintf(_T("\n"));
}

if ((pEnt1->isKindOf(AcDbMText::desc()))){
myText = AcDbMText::cast(pEnt1);
acutPrintf(_T("\nSelected Text is:"));
acutPrintf(myText->contents());
pEnt1->close();
CString mywebdocupath,path1;

webdocupath = webdocupath.Left(webdocupath.ReverseFind(_T('\\')));
path1 = webdocupath.Left(webdocupath.ReverseFind(_T('\\')) + 1)+_T("WebDoku\\");

mywebdocupath = path1 +_T("loopo\\WG_LL.txt");

CString LoopListFile (mywebdocupath);

CStdioFile LoopList;
CFileException e;
CString FileName1,Filename2,Path;

if(LoopList.Open(LoopListFile,CFile::modeRead,&e)){
CString Oneline(""),LoopName(""),FileName("");
int pos1,pos2;

for (int i = 0; i < 4; i++){
while(LoopList.ReadString(Oneline)){
pos1 = Oneline.Find(_T("\1"));
FileName =Oneline.Mid(pos1 +1);
pos2 = FileName.Find(_T("\1"));
if(pos2>0){
FileName1 = FileName.Mid(pos2+1);
}

if(pos1 > 0){
LoopName = Oneline.Left(pos1);

if(LoopName.CompareNoCase(myText->contents()) == 0){

acutPrintf(_T("\nStrings are equal"));

FileName = path1 + FileName1;
ShellExecute(NULL,(_T("open")),(FileName),NULL,NULL,SW_SHOWNORMAL);
return;
break;
}
}
}
}

acutPrintf(_T("\nStrings are not equal"));

}

acutPrintf(_T("\nThere is no selected text in "));
acutPrintf(pmysection);
acutPrintf(_T(" section"));
LoopList.Close();
return;

}

}

Shah Satish

David Crow1-Dec-06 3:15

David Crow

1-Dec-06 3:15

Shah Satish wrote:
Here i am using value from Void confwebd ( ie mypath)

Are you assigning it a new value?

Shah Satish wrote:
...may be have to make global value...

Based on the code snippet you've shown, it already is global.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Shah Satish1-Dec-06 3:42

Shah Satish

1-Dec-06 3:42

Nop..I am not assigning new value.