|
|
Hi,
Is there a relatively straightforward way of determining the video card? I am creating a small settings panel for a game, and want the video card to appear in a listbox. I figure I probably need to use DirectX to find out the video card driver. Any pointers as to how to do this would be much appreciated.
Many thanks,
Keith
|
|
|
|
|
If you simply want a list of the display devices currently installed on the system, then you can use EnumDisplayDevices.
If you would like to get more complicated and list all of the display modes that each of the devices that each display adapter supports, then there is a really nice example program that does this in the DirectX 8.0 SDK.
Good Luck!
Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!
|
|
|
|
|
Many thanks for your reply, EnumDisplayDevices sounds exactly what I need. Unfortunately, I have tried to use it but I get a compile error:
EnumDisplayDevices: Undeclared Identifier
I have inluded user32.lib and the windows.h header, and the autotext in VC++ seems to recognise the function, but it just won't compile.
If anyone has any ideas of why this might be, I would be very grateful.
Again, many thanks,
Keith
|
|
|
|
|
It says in MSDN that the function is only available in Win98, Windows 2000 or above. That means that you will have to define the version that you would like to compile for to include the version 5 function headers. make this definition at the top of your stdafx.h file:
#define WINVER 0x0500
but once again, this will make you program so that it will not work on windows 95. Hopefully this is acceptable.
Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!
|
|
|
|
|
BTW, it will also not work on Windows NT 4.0, as this is a version WIN OS as well.
Good Luck.
Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!
|
|
|
|
|
I have a function: CString GetNextString( ifstream &InFile )
This works fine, but it seems everytime I get an error(such as a missing semicolon) I get another error that says it doesn't understand what an ifstream is. So I have to deleted the GetNextString function, comment out all calls to the GetNextString function, build it without any errors, then recreate the GetNextString function. It's a big hassel. Can it be fixed?
-Raffi
|
|
|
|
|
This is most weird, I'd bet the problem lies elsewhere. Things to check:- Are you including
using namespace std;? If not, you should replace ifstream with std::ifstream throughout.
- What header are you using (should be
<fstream>) and where are you including it?
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
Here's the declarations and functions i use, when i get to EnumObjects, it comes with an "Unhandled exeption" error and stops at that line.
IShellFolder *pSf = NULL;
LPENUMIDLIST pEidl;
pSf->EnumObjects(ghWnd, SHCONTF_FOLDERS | SHCONTF_NONFOLDERS | SHCONTF_INCLUDEHIDDEN, &pEidl);
ghWnd is the handle to my window and it is valid, i have tested that.
Anyone know whats wrong?
Thankyou
|
|
|
|
|
I guess this is not the exact code you're using, since pSf is null.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
Sorry, here's the definition of pSf;
LPSHELLFOLDER pSf;
|
|
|
|
|
I mean, maybe it is the way you're obtaining this pSf what it's wrong. Have you checked it is not null before calling EnumObjects on it?
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
|
It looks real bad. Could you post the code you're using to retrieve pSf?
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
Heh, woops called the wrong function to set the pSf, i have to call
SHGetDesktopFolder (&pSf); thanks for the help :=)
|
|
|
|
|
You are welcome.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
u are sooooo diplomatic joaquin
"... and so i said to him ... if it don't dance (or code) and you can't eat it either f**k it or throw it away"
sonork: 100.18128 8028finder.com
|
|
|
|
|
I have had a problem programming in Windows for some time which I have never solved and would appreciate anybody's help !! I shall describe the current incarnation !!
I am writing an application (using MFC and VC++) using the Document/View architecture. Within a Document/View process, I need to produce a secondary window (to the view) to display certain other information. I invoke this via a menu item associated with the View, and have tried to display this secondary window by using the following statements within the menu routine:
void CIRCView::OnMenuItem()
{
// TODO: Add your command handler code here
CIRCDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
if(!m_bButtonSelected)
AfxMessageBox("Please select a key to adjust");
else
{
CRect rect(20,20,100,100);
CWnd Wnd;
int rc;
rc = Wnd.Create(NULL,NULL,
WS_CHILD | WS_VISIBLE | WS_OVERLAPPEDWINDOW | WS_VSCROLL | WS_HSCROLL,
rect,(CWnd*)GetParent(),NULL);
}
}
I get a good (non-zero) return code from Create(), but no new window (apart from the View) is visable (if I add a Wnd.ShowWindow(), it returns that the window WAS already visable !).
Where am I going wrong ??? (Any help appreciated on this trivial, but important, question will be greatly appreciated !!)
Doug
|
|
|
|
|
Your CWnd variable is local, so it gets destroyed as soon as you exit OnMenuItem.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
Joaquin, Many thanks for your response - I'm now kicking myself because it's so obvious !! (the simple ones always are !!!) Thanks again
Doug
|
|
|
|
|
whatever.cpp(41) : fatal error C1001: INTERNAL COMPILER ERROR
(compiler file 'msc1.cpp', line 1794)
Please choose the Technical Support command on the Visual C++
Help menu, or open the Technical Support help file for more information
Error executing cl.exe.
as if this isnt hard enough as it is!!!
"... and so i said to him ... if it don't dance (or code) and you can't eat it either f**k it or throw it away"
sonork: 100.18128 8028finder.com
|
|
|
|
|
This is a (unfortunately) rather common situation as soon as you get serious at writing templatized code. Namespaces make VC++ have a hard time, too.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
When I have a normal Win32 program, where can I intercept the messages from child controls as WM_CREATE, WM_CLOSE, WM_PAINT, etc... withing the
LRESULT CALLBACK(HWND hWnd, MSG message, WPARAM wParam, LPARAM lParam){}
function of the main window.
Where can I find the HWND of the child control (I presume lParam), the message itself (is it message or something in the wParam)?
N.B. I know how to get the messages from i.e. a button like BN_CLICKED, BN_DBLCLK, etc...
LPCSTR Dutch = "Double Dutch  "
|
|
|
|
|
You will need to subclass that child control if you want its Windows Messages (WM_XXX). The BN_ messages that you are recieving are called notifcations that get sent to the parent window.
When you subclass a window, you are basically placing your own WindowProc in the place of the original window proc for the child control. This will allow you to override any functionality that you want to, then pass the messages that you do not care about to the original window proc.
Look up sublcassing, and SetWindowLong in MSDN.
Good Luck!
Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!
|
|
|
|
|
Is it also possible to set the WindowProc method into a class? And how can I connect this to the WNDCLASSEX struct? (Because (WNDPROC)WindowProc won't work)
LPCSTR Dutch = "Double Dutch "
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
