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Thanks that helped alot!
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Hi!
I've created an SDI application with a formview for its view. My formview is bigger than the screen, so I would like to add a vertical scrollbar.
Is there a way to automaticaly add a scrollbar to move the formview? If not, how to manualy add it?
Thks in advance!
Appstmd
http://www.appstmd.com
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THe formview should have a scroll bar automatically. The onyl times it will not is if you are calling SetScrollSizeToFit() on the form view. Thsi function is used to set the x/y dimension of the form before a scroll bar appears. By default the size of the formview in the resource editor is used as the default size of the form. If the screen real-esatet is less then this then you get your scroll bars.
Roger Allen
Sonork 100.10016
Were you different as a kid? Did you ever say "Ooohhh, shiny red" even once? - Paul Watson 11-February-2003
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Thks for your answer. But in fact, because I've got several views, my view is derived from CView and not from CFormView, and I manually add a dialog on the view. The user can choose another mode, and another dialog is displayed on the view.
Can I automatically display a scrollbar in this way?
Thks in advance!
Appstmd
http://www.appstmd.com
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I am creating a control that has a treeview.
I am trying to capture the OnNotify with
NMHDR *phdr = (NMHDR *)lParam;
// Coming from listview?
if( phdr->code == NM_RCLICK )
MessageBox(NULL, "Right click found", "Click", MB_OK);
but i am only getting the calls when the mouse is clicked on the header, same goes for Double click, what am I doing wrong,
any help is really appreciated
shotgun
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I assume you mean a list view, since a tree doesn't have a header.
WM_NOTIFY messages go to the parent of the control, so when you r-click the list, the message goes to the list's parent. This is why you get a message when you r-click the header; the message goes to the header's parent, which is the list.
--Mike--
Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber
"You have Erica on the brain" - Jon Sagara to me
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I want to search through a directory and get all the files and subdirectories in it. I can't seem to get subdirectores using CFileFind, just files, so I was wondering if there was another way to do this.
Thanks
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One solution is FindFirstFile() and FindNextFile(). Determine the file attribute to distinguish folders from files.
Kuphryn
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I tried that and whenever it got a folder, and I tried to display the name of the folder, it was just a period. I'll give that another try though.
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Yeah. Those functions could return periods, which indicate parent folder.
Kuphryn
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Change the function you are using to scan through a folder to a recursive one. Whenever you encounter a folder, call that function again with the sub folder path. I have done this and it works.
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Hi.
I have this class:
<br />
class CNetwork<br />
{<br />
public:<br />
void InitNetwork();<br />
DWORD WINAPI ListningForClients(LPVOID Arg1);<br />
void SendToClient(CLIENTS TheClient,char *Command);<br />
<br />
<br />
private:<br />
char ServerAddress[64];<br />
int ServerPort;<br />
struct hostent *ServerHost;<br />
int nReturn;<br />
<br />
SOCKET s; <br />
WSADATA wsda; <br />
SOCKET sListen, sClient;<br />
SOCKADDR_IN addr, RemoteAddress; <br />
};<br />
But I'm having some problems with the DWORD WINAPI ListingForClients call
DWORD WINAPI ListningForClients(LPVOID Arg1)<br />
{ <br />
......<br />
if (NumClientsConnected < MaxConnections)<br />
{<br />
CreateThread( NULL, 0, &ListningForClients, 0, 0, 0);<br />
}<br />
......<br />
}
This ofcourse calls itself, theirby creating a new thread..
But i'm getting this error when compiling.
CNetwork.cpp(42) : error C2276: '&' : illegal operation on bound member function expression
The function works when it's not incapsueled in a class!!
Thank for anyhelp.
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Make ListningForClients static. For further info on callbacks over member functions, check Mike Dunn's C++ FAQ (top of this page), paragraph 6.1.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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Okay I tried to make it static. but now i get some errors:
example: illegal reference to data member 'CNetwork::sListen' in a static member function
Might I ask, what does Static do?
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Well, Mike's FAQ explains it all, but I'll try to clear the issue up myself. Non-static members have, so to say, a hidden parameter pointing to the object the member function applies to (the this parameter, if you want to see it like that). After changing ListningForClients to static, the member function is no longer bound to any particular object via this, hence the error. This is what static means when applies to member functions: general functions not associated to particular instances of the class.
The way out of this problem is to use a callback paramter CreateThread provides just for this sort of things. In this parameter you can store a pointer to the relevant object and then use it accordingly. Pseudocode follows:
class CNetwork
{
...
static DWORD WINAPI StaticListeningForClients(LPVOID Arg1)
{
CNetwork* object=(CNetwork*)(Arg1);
object->ListeningForClients();
}
void ListeningForClients()
{
}
...
CreateThread( NULL, 0, &ListeningForClients, this, 0, 0);
};Hope you get the idea. Please read the FAQ for further clarification. Good luck.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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The problem is that you do not need to pass the Address of the the function ListenForClients, because ListenForClients as a symbol is already an address.
Just get rid of the ampersand.
CreateThread( NULL, 0, ListeningForClients, this, 0, 0);
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How can I open an .exe file to see the actual code?
Alex
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Use Visual Studio. Open as binary.
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You can't see the actual code, just the machine language binary
numbers put out by the compiler/assembler/linker.
To get a better understanding of what's inside an exe file,
see the following article by Matt Pietrek:
http://msdn.microsoft.com/msdnmag/issues/02/02/PE/default.aspx
http://msdn.microsoft.com/msdnmag/issues/02/03/PE2/default.aspx
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I need to loop through each pixel in a "device context" in GDI+. In the old GDI I just did this:
if(pDC->GetPixel(point) == crLineTwoColor)
{
::SetCursor( AfxGetApp()->LoadStandardCursor( IDC_SIZEWE ) );
}
but now with GDI+ I don't know how to check the "device context" pixel by pixel to check for a certain color. I check the documentation, but there is not function called GetPixel() in the Graphics class. I see there is a GetPixel() function in the Bitmap class, but I don't know how to put the contents of a device context into a Bitmap variable.
How do I check the "device context" pixel by pixel to check for a certain color using GDI+? or How do I put a copy of what is on my device context in a Bitmap variable so I can use the GetPixel() function?
P.S I know that it isn't called a device context anymore in the GDI+, but I don't know what else to call it.
Thanks in Advance!
Greg
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Is there simple byte_swap function or does anyone know how to do it?
- Nitron
"Those that say a task is impossible shouldn't interrupt the ones who are doing it." - Chinese Proverb
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What do you mean by byte swapping? Can you give an example of what you're after?
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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I am trying to read a legacy file format where data is written as follows:
snip--
Integers are 2-s complement, with high-order bytes first. Real numbers are in 32-bit IEEE 754 format with high-order bytes first.
im trying to figure out how to get the binary data into a float...
- Nitron
"Those that say a task is impossible shouldn't interrupt the ones who are doing it." - Chinese Proverb
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As for the integers, here's a small routine (beware, not tested):
int swap_int(int x)
{
int y;
char *p0=reinterpret_cast<char *>(&x);
char *p1=reinterpret_cast<char *>(&y);
p1[0]=p0[3];
p1[1]=p0[2];
p1[2]=p0[1];
p1[3]=p0[0];
return y;
}
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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void ImageEncDec::ByteSwap(PWORD imptr, UINT length)
{
PWORD item;
PBYTE hi;
BYTE temp;
for( UINT i = 0; i < length; i++ ) {
item = &imptr[ i ];
hi = (PBYTE)item;
temp = hi[0];
hi[0] = hi[1];
hi[1] = temp;
}
}
John
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