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I am having some trouble with CFindAndReplace dialog. It appears that everything works until the point the dialog goes out of scope when it crashes.
According to documents, you have to instantiate the structure on the heap and then create the dialog which is what i do :
void LogDlg::OnCmdSearch()
{
if (!pFRDlg)
{
// Initialize find string
if (!szFRDlgFindString)
{
szFRDlgFindString = new char[256];
szFRDlgFindString[0] = 0;
}
// New find dialog
pFRDlg = new CFindReplaceDialog();
pFRDlg->m_fr.lStructSize = sizeof(pFRDlg->m_fr);
pFRDlg->m_fr.hwndOwner = this->GetSafeHwnd();
// Can't do up/down searches in RichEditCtrl?
pFRDlg->m_fr.Flags |= FR_HIDEUPDOWN;
pFRDlg->m_fr.lpstrFindWhat = szFRDlgFindString;
pFRDlg->m_fr.wFindWhatLen = 256;
pFRDlg->Create(TRUE, "", NULL, FR_DOWN, this);
}
}
After that, you have your search routine:
void LogDlg::OnFind()
{
if (pFRDlg->IsTerminating())
{
pFRDlg = NULL;
}
else if (pFRDlg->FindNext())
{
static bool InFindNext = false;
if (InFindNext)
return;
InFindNext = true;
CRichEditCtrl *pEdit = (CRichEditCtrl *)GetDlgItem(IDC_LOGVIEW);
FINDTEXTEX FindText;
pEdit->GetSel(FindText.chrg);
// Set text range appropriately....
// If it's empty, select the entire range
if (FindText.chrg.cpMin == FindText.chrg.cpMax)
{
FindText.chrg.cpMin = 0;
FindText.chrg.cpMax = -1;
}
// If there's selected text, read past it.
else if (FindText.chrg.cpMin >= 0 && FindText.chrg.cpMax > 0)
{
FindText.chrg.cpMin = FindText.chrg.cpMax;
FindText.chrg.cpMax = -1;
}
FindText.lpstrText = szFRDlgFindString;
for (;;)
{
// Did we find something?
if (pEdit->FindText((pFRDlg->MatchCase() ? FR_MATCHCASE : 0) |
(pFRDlg->MatchWholeWord() ? FR_WHOLEWORD : 0),
&FindText) != -1)
{
pEdit->SetSel(FindText.chrgText);
break;
}
// Looped?
else if (FindText.chrg.cpMin != 0 || FindText.chrg.cpMax != -1)
{
if (MessageBox(_T("End of text reached. Search again from the beginning?"), _T("Selection not found."), MB_YESNO | MB_ICONQUESTION) == IDYES)
{
FindText.chrg.cpMin = 0;
FindText.chrg.cpMax = -1;
}
else
break;
}
// Nowhere in there
else
{
MessageBox(_T("No matching text found."), _T("Selection not found"), MB_OK | MB_ICONWARNING);
pEdit->SetSel(0, 0);
break;
}
}
InFindNext = false;
}
}
So, what else do i need to do, to prevent this thing from crashing? Do I need to clean up this thing somewhere? Am i missing something?
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I want to have a certain control about ALL running windows of Internet Explorer.
For example I want to do my own things with the adress, if the user types in e.g. "g Something" (without quotation-marks), I want to navigate the browser to www.google.com and then search for "Something". (same as the browser Opera does)
How can I do this?
thanks in advance
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Hi,
I'm working with a bitmap that is 1 bit. I need to find out if each bit is a 0 or a 1. Basically, I'm reading it in, one scan line at a time, for this example, let's say that it is 277 bytes wide. I do the following:
char* imageBytes = new char[277];
file.Read(imageBytes, 277);
for(int x = 0, x < 277; x++)
{
int indByte = imageBytes[x];
}
Can anyone help me to access each one of the bits to find out if it's black or white?
Thanks for any help you can provide,
Craig
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once you have the byte that holds the bit-in-question, you need to do some old-school bit masking:
int iBitPos = 7 - (uPixelX - (uPixelX / 8) * 8);
BYTE masks[8];
for (int z=0;z < 8;z++)
{
masks[z] = 1 << z;
}
bool bitIsOn = (inByte & masks[iBitPos]) != 0;
-c
------------------------------
Smaller Animals Software, Inc.
http://www.smalleranimals.com
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Chris,
Thanks for the reply. I tried pretty much all day yesterday to get this to work for my situation and was unsuccessful. I ended up doing something real slow and at I'm sure a VERY beginners level but I got it to work. I was wondering if you could take a look and tell me if there is a way to optimize it at all. Following is the code that I'm using:
file.SeekToBegin();
int scanLine = 4 * ((pbmih->biWidth * pbmih->biBitCount + 31) / 32);
BYTE* buffer = new BYTE[scanLine];
int bytesread;
file.Seek(hdr.bfOffBits, 0);
FILE* output;
output = fopen( "..\\images\\output.txt", "a+" );
fclose(output);
bytesread = file.Read(buffer, scanLine);
CString strOut;
while(bytesread)
{
int arrayBytes[8];
for (int ff=0;ff<8;ff++)
arrayBytes[ff]=0;
strOut.Empty();
for(int x = 0; x < scanLine; x++)
{
BYTE inByte = buffer[x];
for (int ff=0;ff<8;ff++)
arrayBytes[ff]=0;
BYTE byteone;
BYTE bytetwo;
byteone = inByte >> 4;
bytetwo = inByte << 4;
bytetwo = bytetwo >> 4;
switch (byteone)
{
case 0x1:
arrayBytes[4]=1;
break;
case 0x2:
arrayBytes[5]=1;
break;
case 0x3:
arrayBytes[4]=1;
arrayBytes[5]=1;
break;
case 0x4:
arrayBytes[6]=1;
break;
case 0x5:
arrayBytes[4]=1;
arrayBytes[6]=1;
break;
case 0x6:
arrayBytes[5]=1;
arrayBytes[6]=1;
break;
case 0x7:
arrayBytes[4]=1;
arrayBytes[5]=1;
arrayBytes[6]=1;
break;
case 0x8:
arrayBytes[7]=1;
break;
case 0x9:
arrayBytes[4]=1;
arrayBytes[7]=1;
break;
case 0xA:
arrayBytes[5]=1;
arrayBytes[7]=1;
break;
case 0xB:
arrayBytes[4]=1;
arrayBytes[5]=1;
arrayBytes[7]=1;
break;
case 0xC:
arrayBytes[6]=1;
arrayBytes[7]=1;
break;
case 0xD:
arrayBytes[4]=1;
arrayBytes[6]=1;
arrayBytes[7]=1;
break;
case 0xE:
arrayBytes[5]=1;
arrayBytes[6]=1;
arrayBytes[7]=1;
break;
case 0xF:
arrayBytes[4]=1;
arrayBytes[5]=1;
arrayBytes[6]=1;
arrayBytes[7]=1;
default:
;
}
switch (bytetwo)
{
case 0x1:
arrayBytes[0]=1;
break;
case 0x2:
arrayBytes[1]=1;
break;
case 0x3:
arrayBytes[0]=1;
arrayBytes[1]=1;
break;
case 0x4:
arrayBytes[2]=1;
break;
case 0x5:
arrayBytes[0]=1;
arrayBytes[2]=1;
break;
case 0x6:
arrayBytes[1]=1;
arrayBytes[2]=1;
break;
case 0x7:
arrayBytes[0]=1;
arrayBytes[1]=1;
arrayBytes[2]=1;
break;
case 0x8:
arrayBytes[3]=1;
break;
case 0x9:
arrayBytes[0]=1;
arrayBytes[3]=1;
break;
case 0xA:
arrayBytes[1]=1;
arrayBytes[3]=1;
break;
case 0xB:
arrayBytes[0]=1;
arrayBytes[1]=1;
arrayBytes[3]=1;
break;
case 0xC:
arrayBytes[2]=1;
arrayBytes[3]=1;
break;
case 0xD:
arrayBytes[0]=1;
arrayBytes[2]=1;
arrayBytes[3]=1;
break;
case 0xE:
arrayBytes[1]=1;
arrayBytes[2]=1;
arrayBytes[3]=1;
break;
case 0xF:
arrayBytes[0]=1;
arrayBytes[1]=1;
arrayBytes[2]=1;
arrayBytes[3]=1;
break;
default:
;
}
for (int z=7;z>=0; z--)
{
char buf[10];
itoa(arrayBytes[z], buf, 10);
buf[1]='\0';
output = fopen( "..\\images\\output.txt", "a+" );
fseek(output, 0L, SEEK_END );
fprintf(output, "%s", buf);
fclose(output);
}
}
output = fopen( "..\\images\\output.txt", "a+" );
fseek(output, 0L, SEEK_END );
fprintf(output, "\n");
fclose(output);
bytesread = file.Read(buffer, scanLine);
}
fclose(output);
delete buffer;
delete pbmih;
file.Close();
Thanks for any insight you can provide,
Craig
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You can do the following
for (int i = 0; i < 8; i++)
{
BOOL fSet = (indByte >> i) & 1;
}
modified 29-Aug-18 21:01pm.
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I found the StillCap demo and it has the annoying p[roperty ofg displaying a running counter of frames(?) in the preview window. I've looked everywhere I can think of to look, and I can't find where to turn this damn thing (the running frame counter) off.
Can someone please direct me as to where to look?
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Hi
I just searched the whole CodeProject site but didn't find the article I was searching for. The app (and its source) what I search for was able to intercept the string the user types in the editbox from startmenu -> "Run"
I hope this is enough information,
please help me
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Hi,
I'm writing an app using WTL (love it!) but I'm finding a problem. Whe the user clicks on the Zoom In icon in the toolbar (or menu), I want to change the mouse cursor to my custom magnifying glass cursor. The problem is that nothing was happening.
After a little investigation and tinkering, I hooked my app up so that if I click the left mouse button it would change the cursor. This works -- but if I let go of the mouse button, or I move the mouse, it goes back to the arrow. I stepped through the code and it is loading the cursor resource with no problem... it just won't stay.
I have tried both ::SetCursor and CWaitCursor (true, MAKEINTRESOURCE(...), false) to no avai. I do not change the cursor elsewere.
Any help would be appreciated, thanks
---
PAGE FAULT: Please insert "Swap File Disk 2" in drive and press any key to continue
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What you are seeing is the WM_SETCURSOR setting the cursor back to the registered cursor for your main window.
The easiest thing to do it in your main window, override WM_SETCURSOR. If LOWORD (lParam) == HTCLIENT then set the cursor to the cursor you want. Otherwise, set bHandled to false and let the default processor handle the message.
Tim Smith
Descartes Systems Sciences, Inc.
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You sir, are absolutely correct! Thank you very much
---
PAGE FAULT: Please insert "Swap File Disk 2" in drive and press any key to continue
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Hello,
I have a dialog type application and I had to manually set the size of the dialog and the size and position of all my controls using:
GetDlgItem(IDC_STATIC_COUNT_BORDER)->SetWindowPos(NULL,12,96,122,55,NULL);
The problem I am having is that my tab order is now messed up. Do I need to SetWindowPos() in a specific order to maintain my tab order? I set the tab order through visual studio and it seems that the tab order is now backwards.. Has anyone seen this?
Thanks,
Rob
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Never mind I figured it out.. just incase anyone else has the problem it appears that when you do the SetWindowPos() on all your controls the bottom setwindowpos is your first tab and second from the bottom is you second and so on.....
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To preserve Tab Order (which is the same as Z-order) you should use the flag SWP_NOZORDER when calling SetWindowPos().
Paolo
------
"airplane is cool, but space shuttle is even better" (J. Kaczorowski)
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Thanks!! I'll implement that flag and use the tab order through visual studio.
Rob
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How can I (programatically) scroll the client area of an application derived from CHtmlView. Although CHtmlView is derived from CScrollView but ScrollToPosition(), , SetScrollInfo(), ScrollWindow() and ScrollWindowEx() functions are not working.
I have seen a bug info BUG: Calling ScrollToPosition() in CFormView Derived Class Moves the Scroll Bars but Not the Window but i think its for Window CE only. Is it a similar kind of problem here?
Please help, i want to programatically scroll the client area of my application derived from CHtmlView.
Thanks
Umar Riaz
RIT Research Corporation,
Rochester, NY 14580
(716) 239-6064 (Office)
(716) 317-1786 (Cell)
(716) 216-2294 (Home)
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I have a multi-threaded windows application
running on NT 4.0. Its actually based on a
class I found here called CThreadJob. It
continually performs an ODBC lookup and
displays the results. Pretty routine stuff.
If I build it, then launch it from explorer, it
seems to work fine. However, if I launch it
from within the Visual Studio IDE, in debug
or release mode, using F5 or Ctrl-F5, the
application deadlocks immediately and I
have to reboot to remove it (the rest of
the system is okay, I just can't get control
of the IDE or the app - even Task Manager
can't kill it).
I know this is sketchy and a really tough
one to diagnose remotely, but perhaps
someone has had a similar problem and
could give me something to look for. I
could swear this program is as thread
safe as they come, but the IDE seems
to feel otherwise.
jb
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The first thing that comes to mind is that when you launch it in debug mode from the VS context, the exe is run from the \debug directory and also, the working directory is different and there might be different command line params set from the VS IDE.
I program multi-threaded apps every day (my job is programming servers) and the best way to find deadlocks is to add extensive logging to your application.
Put logs before and after every one of your wait functions (WaitForSingleObject, WaitForMultipleObjects, etc..) then see where the deadlock is.
Another thing that comes to mind when debugging multi-threaded applications is timing. The timing is completely different in debug mode than it is in release and deadlocks are all about timing.
Maybe the deadlock bugs are there, but they do not happen in release mode since it is faster and it catches up better.
Hope this helps,
Jeremy.
GFI
"Hey man, Taliban, Tali me Banana."
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Hello,
i have a activex control.
it is only a treeviewctrl using wtl.
now i implemented a contextmenu handler, but if i
clicked on a menu point nothing happens.
in my message map i have:
COMMAND_ID_HANDLER (ID_OF_MENU_POINT, OnMyMenu)
What is my mistake?
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Where is your message handler, in the treeview? Have you chained the context menu messages?
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The massage handler is in my COM class (header file).
class ATL_NO_VTABLE CMyClass :
public CComObjectRootEx<ccomsinglethreadmodel>,
public CComCompositeControl<cmyclass>,
.....
BEGIN_MSG_MAP(CMyClass )
CHAIN_MSG_MAP(CComCompositeControl<cmyclass>)
......
......
MESSAGE_HANDLER(WM_CONTEXTMENU, OnContextMenu)
COMMAND_ID_HANDLER(ID_CHECKSERVER,OnDelete)
COMMAND_ID_HANDLER(ID_CHECK,OnDel)
END_MSG_MAP()
LRESULT OnDelete(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
MessageBox("asdsdasd");
return S_OK;
}
What do mean with chaining the messages?
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Here is what i want to do.....
I want to print a tree from the CTreeCtrl.
Not the fully but only the selected tree nodes can any one tell how can i do this...
Thanks in Advance...
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What's the problem? Printing from CTreeCtrl or finding selected items? CTreeCtrl doesn't support multiple selection natively; you have to implement it yourself and finding selected items depends on your implementation details.
Tomasz Sowinski -- http://www.shooltz.com
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Netmeisters
I am trying to write an application for the Pocket PC which, among other things, should connect to a Linux server via a secure socket. The server has OpenSSL installed.
Everything works with ordinary, unsecured sockets, and in principle, all I need to do now is "turn on" SSL for the sockets. As far as I can tell, this should require only two steps, setsocket()to "turn on" security, and wsaioctl() to register a certificate validation callback. These two steps should occur between the socket() call that creates the socket, and the connect() call that connects to the server.
Unfortunately, I haven't been able to get this to work.
I have
s=socket(AF_INET, SOCK_STREAM, 0);
DWORD optval = SO_SEC_SSL;
err=setsockopt(s, SOL_SOCKET, SO_SECURE, (const char *)&optval, sizeof(optval));
if (err==SOCKET_ERROR) {
errmsg.Format(_T("Error in setsockopt for SO_SECURE %d"), WSAGetLastError());
MessageBox(errmsg); }
connect(....
I get err=10042, "An unknown, invalid, or unsupported option or level was specified in a getsockopt or setsockopt call."
So setsockopt() doesn't work. I would like to know if anyone has any idea why. I should mention that I have only tested this with the Pocket PC emulator, since I don't currently have a physical device to test it on. Perhaps something is wrong with the emulator's support for SSL?
Any example code illustrating an SSL client for Windows CE would also be much appreciated.
Thank you,
Matthew Fleming
mgf@mcw.edu
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