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The recv function is called by TCP sockets.
When using a UDP socket, you should call the recvfrom function.
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Hi,
I have trouble with this type, need help.
Consider this function declaration:
SCODE SetData(VARIANT FAR* pData)
What I have is a sample code which reads in data from a file and works just fine. A COleSafeArray is passed to the function as follows:
COleSafeArray osa;
SAFEARRAYBOUND sab;
sab.cElements = file.GetLength();
sab.lLbound = 0;
osa.Create(VT_UI1, 1, &sab);
void* buffer;
osa.AccessData(&buffer);
file.Read(buffer, file.GetLength());
osa.UnaccessData();
SetData(osa);
I want to pass a string to this function and can't figure it out how. Please help.
Bunburry
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I would like to place text on a tool bar that is not associated with any button. I have seen this in other applications. Does anybody have any suggestions?
Thanks.
Eldon Zacek
Czech-Mate Enterprises, LLC
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I just want to know if it's possible to place a transparent bitmap on a dialog?
Exemple: I have a bitmap of a donuts.
I want the middle of the donuts to be transparent.
So that I can see the windows background.
Is it possible to do that?
thanks!
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I believe you'll have to load the bitmap manually, alongside with a mask, and use MaskBlt() accordingly in the WM_PAINT handler.
I don't know a way to just drop the semi-transparent bitmap onto the dialog in the resource editor...
--
Eventhough the forrest is full of trees, there's still no tree between the trees.
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You need to either apply your own mask, or if you're using W98 and higher only, you can use TransparentBlt. Or GDI+, of course.
Christian
No offense, but I don't really want to encourage the creation of another VB developer.
- Larry Antram 22 Oct 2002
C# will attract all comers, where VB is for IT Journalists and managers - Michael
P Butler 05-12-2002
Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not
as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002
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I'm used to developing using the VisStudio 6.0. To add a new dialog to an existing project in that IDE I mapped the WM_INITDIALOG to the OnInitDialog. If you try to go into the code and add these manually they won't work, won't display on DoModal(). It's been my experience that you have to add the dialog class using the ClassWizard in order to make the mapping work.
Ok, question...using VisStudio.NET and unmanaged C++ how do I add this same message map? Adding OnInitDialog manually produces the same results I saw in 6.0
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Use the Properties pane/window. One of the buttons is for overrides, another is for messages.
Software Zen: delete this;
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I'm trying to add property pages to a property sheet, and calling set wizard mode for a wizard style app. I have 2 questions, one how can i get the property page i add to fill the entire client area ( except for the area at the bottom that has the next, cancel buttons ), and how can i get the rectangle coordinates of those buttons so that i can change the dialog color to white except for where the buttons appear? I am overriding the WM_ERASEBKGND message to change the background color of the dialog area and this works fine except it applies to the area behind the buttons.
Thanks for the help
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Inherit your own class from CPropertySheet and override its WM_ERASEBKGND message. To get the buttons from the class use the ids of IDOK, IDCANCEL, IDHELP and I think IDWIZNEXT, IDWIZPREV.
Roger Allen
Sonork 100.10016
This is a multiple choice question, choose wisely
Why did the hedgehog cross the road?
A: To show he had guts?
B: To see his flat mate?
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I need an array of CMenu pointers, so that I can loop through the array and do stuff like:
CMenu* pFlyOutMenu = new CMenu[sizeSub];
for (int i = 0; i less than sizeSub; i++)
{
pFlyOutMenu[i]->CreatePopupMenu();
pFlyOutMenu[i]->AppendMenu etc
}
I am doing something incredibly wrong  , but it says :
C:\BKView.cpp(264) : error C2819: type 'CMenu' does not have an overloaded member 'operator ->'
Appreciate your help,
ns
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You've declared pFlyOutMenu to be an array of CMenu's, not an array of pointers to CMenu's, hence:
CMenu* pFlyOutMenu = new CMenu[sizeSub];
for (int i = 0; i < sizeSub; i++)
{
pFlyOutMenu[i].CreatePopupMenu();
pFlyOutMenu[i].AppendMenu
etc
}
Software Zen: delete this;
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Yikes! Shows you how inexperienced I am.......many thanks...I see my mistake now.
Appreciate your help,
ns
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Hi all;
I'm using the CShellList class in a project I'm working on. I need to fill up a CComboBoxEx (as well as a CListCtrl) with what is normally seen in the drop-down of a CFileDialog, i.e., My Documents, Desktop, Network Neighborhood, etc. CShellList has calls to get the correct icon depending on the file extension, and it has calls to fill up an image list with the system icons [AttachSystemImageList()], but the position of a particular icon (say, Desktop) in this image list is variable. CShellList also has a GetImageListIcon(CString) which will retrieve the correct icon when passed "C:\\My Documents\\"; but I do not know what string to pass it (if one exists) that will get me the icons for the Desktop, Network Neighborhood, etc. I need to either a.) know what strings to pass it to retrieve the correct system icon, or b.) know how to detect what a particular icon in the image list filled by AttachSystemImageList() relates to. Any help would be greatly appreciated.
Thanks,
Thomas
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Is it possible for an exe file that is running to open the same exe file and append data to it.
Thanks
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I don't believe that this is possible, in a simple context. Rather you have to go about and copy the executable to some new file, append the data to the new file, and then write some special keys in the registry such that the next time Windows starts up, the original file is deleted and then the copy is renamed.
Chris Meech
"what makes CP different is the people and sense of community, things people will only discover if they join up and join in." Christian Graus Nov 14, 2002.
"AAAAAAAAAHHHHHH!!!!! Those leaks are driving me crazy! How does one finds a memory leak in a garbage collected environment ??! Daniel Turini Nov. 2, 2002.
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I am porting some code to be UNICODE compatible and I have run into a few snags, namely that there aren't one to one mappings for all functions to work with UNICODE. There are some that have one to one mappings like atoi -> _ttoi.
I have an atof() function that needs a UNICODE equivlant but there doesn't seem to be anything of the sort. How would one go about simulating this or finding a proper _ttof() like function?
Cheers,
Clint
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look up scanf() and the unicode/tchar version
- Roman -
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clintsinger wrote: I have an atof() function that needs a UNICODE equivlant but there doesn't seem to be anything of the sort.
What about _tcstod()?
"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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I would like to display the standard hand pointer cursor over some buttons that are just images, and don't really look like buttons. I remember hearing that someone was able to read the graphic from some Windows DLL, and then use that as a resource instead of having to create their own. Does anyone have any suggestions on how to do this or could you point me to an article that has this?
Regards,
Brigg Thorp
Software Engineer
Timex Corporation
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No need to read any graphics from a DLL. LoadCursor(hInstance, IDC_HAND) is one way to acquire the hand pointer.
Do you implement these buttons yourself? If so, you could specify the hand pointer when you register the window class. If you don't register a new window class, I guess you could track the mouse cursor movements in and out of the button and use SetCursor appropriately.
--
Eventhough the forrest is full of trees, there's still no tree between the trees.
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Also another note is, set the cursor to be used in the WM_SETCURSOR message handler, not in WM_MOUSEMOVE etc as you get a flickering cursor as it switches between the default and WM_MOUSEMOVE one.
Roger Allen
Sonork 100.10016
This is a multiple choice question, choose wisely
Why did the hedgehog cross the road?
A: To show he had guts?
B: To see his flat mate?
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Wow, you have no idea how simple you made this for me! I had done something like this by subclassing my buttons and using WM_MOUSEMOVE but now everything is much nicer. I am curious though if my subclassing is causing a memory leak:
LRESULT CALLBACK ButtonProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HCURSOR hCursorRHand = LoadCursor(hInst, MAKEINTRESOURCE(IDC_REDHAND));
switch(message)
{
case WM_SETCURSOR:
SetCursor(hCursorRHand);
return TRUE;
}
return CallWindowProc(DefButtonProc, hwnd, message, wParam, lParam);
}
The fact that I am calling LoadCursor and no DestroyCursor is that causing a leak because MSDN says there is no need to call DestroyCursor (or at least this is how I interpreted it). If it is causing a leak, where would I put DestroyCursor in this function?
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