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It is not a compiler error but a linker error telling you that the function QuarkInit() called from within the file main has not been found in any of your compiled files or libraries.
It it is contained in a library, you must add that library to your project. If it is located in some of your source files, check for correct spelling and parameter types and that the file is included in your project.
TCHAR and the _T() macro are extension used originally by the Microsoft compiler (Visual Studio). With mingw, you must include tchar.h and use an additional linker option when building an Unicode application (see http://sourceforge.net/p/mingw-w64/wiki2/Unicode%20apps/[^]).
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when they procure step QuarkInit ( TCHAR * connect) he did not correct me back the main error plus it returns these errors in my function and do not know how to fix
excuse the English BR
error C2664: 'int printf(const char *,...)': não é possível converter um argumento 1 de 'TCHAR *' em 'const char *'
Tipos apontados não são relacionados; conversão requer reinterpret_cast, conversão C-style ou conversão function-style
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where this error
if ( printf(connect, "quark:served", strlen("quark:served")) == 0) {
int port;
char game[256], match[256];
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i wanna make a program in c language in which i have to ping server but i don't know how to start which header files i need....please someone help me .And this program should run on linux
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You probably want to start Here[^]
Normally, when one says ping, that means sending icmp-echo packets and listening for icmp-reply, which requires root privileges, so keep that in mind when developing your solution.
Good luck.
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You may find many examples of ping C source code just Googling for.
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he probably not want to code the ping itself, but how to call it .
I'd rather be phishing!
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struct node{
int key;
node* head;
}
node *head = NULL;
void func(node* &h,int n, int m)
{
if(n > m)
return;
else {
int mid = (n+m)/2;
func(h->head,n,mid-1);
func(h->head,mid+1,m);
}
}
I am wonder what is the difference of parameter:
func(node* &h, int n, int m)
and
func(node* h,int n, int m)
what is the usefulness of node *&h.
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econy wrote: what is the usefulness of node *&h.
It is a pointer to a reference. You can modify the pointer itself rather than the object that the pointer is pointing to.
"One man's wage rise is another man's price increase." - Harold Wilson
"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
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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DavidCrow wrote: It is a pointer to a reference.
Please forgive me if I'm wrong, but isn't it a reference to a pointer, instead?
The difficult we do right away...
...the impossible takes slightly longer.
modified 23-Sep-15 18:40pm.
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Possibly. I've actually never used either (if both are valid concepts) so I could be wrong.
"One man's wage rise is another man's price increase." - Harold Wilson
"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
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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Pointer to reference is not valid, since a reference is not an object.
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func(node* &h, int n, int m)
h is a INOUT parameter, if func changes h then the caller see the changed value (that is after function execution, h could point to another address).
func(node* h,int n, int m)
h is a IN parameter, if func changes it, the caller doesn't see the changed value.
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help at the time of compiling this error appears at the end
by compiling visual studio 2013 through the makefile.vc
<pre lang="vb">fba_ggpo.o : error LNK2001: símbolos externos indefinidos "bool __cdecl VidSSetQuarkConnectStatus(wchar_t const *)" (?VidSSetQuarkConnectStatus@@YA_NPB_W@Z)
fba_ggpo.o : error LNK2001: símbolos externos indefinidos "int __cdecl VidSSetQuarkShowLogo(bool)" (?VidSSetQuarkShowLogo@@YAH_N@Z)
fba_ggpo.o : error LNK2001: símbolos externos indefinidos "int nAcbVersion" (?nAcbVersion@@3HA)
</pre>
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That error is telling you that the linker cannot find the implementations of the three functions named in the error messages.
See: LNK2001[^]
Are you calling functions that you haven't implemented? This error can happen if you include a header (.h) file without also having the implementation (.cpp) file as part of the project.
The difficult we do right away...
...the impossible takes slightly longer.
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Thanks buddy that was the error
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You have most likely failed to include the library that contains these functions. Check your project settings.
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how do i create multiple threads to fetch words from the input file and insert them into the dictionary in c.
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CreateThread()
"One man's wage rise is another man's price increase." - Harold Wilson
"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
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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hello,
I'm a begginer with win32 api, and i try to make a SysListview32 (aka WC_listview) with draggable columns to modify it order with the mouse. To do this, i create it with the LVS_EX_HEADERDRAGDROP etended style, like this :
ListView = CreateWindowEx( LVS_EX_HEADERDRAGDROP, WC_LISTVIEW, NULL, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | LVS_REPORT, 0, 0, RectParent.right, RectParent.bottom, hwnd, NULL, hInstance, NULL );
The listview appears correctly with columns and items, but don't work when i try to move a column with mouse. Do i forget something ???
Thank you in advance !!
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LVS_EX_HEADERDRAGDROP is a extended style, that is why should be setup not there, but using SetExtendedStyle method:
ListCtrl.SetExtendedStyle(LVS_EX_HEADERDRAGDROP);
I don't know Win32, but I am sure there is SetExtendedStyle Win32 function ...
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I have a c++ class that contains the following:
template<class T> class Poly {
public:
Poly<T>(int order = 0)
{
this->order = order;
coeffs = new double[order+1];
for( int i = 0;i<=order; i++ )
coeffs[i] = 0;
}
Poly<T>( int order, T *coeffs);
Poly<T>( Poly &poly );
~Poly()
{
delete []coeffs;
}
// other member functions are not shown.
friend ostream &operator << ( ostream &out,
Poly<T> &poly );
private:
// data members not show.
};
This class is defined in a file called poly.h. In the file poly.cpp, I have the following function definition:
template<class T>
ostream & operator << ( ostream &out, Poly<T> &poly )
{
bool printedCoeff = false;
.
.
.
return out;
}
In a third file called test.cpp, I have:
double coeffs[] = { 3, 1, 2, 1 };
Poly<double> p1(3,coeffs), p2;
cout << p1 << endl;
I am using the Microsoft Visual Studio and I get a linker error because of the statement:
cout << p1 << endl;
I believe that my definition of the function overloading << is
not properly getting instantiated. How do I fix this?
Bob
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I am trying to use GDI+ within my MFC dialog based application with multiple child dialogs. On one of the child dialogs, I am trying to draw an image from an array of 8 bit BYTE pixel data. Here is how my flow process is for this-
Variables declared in my child dialog's header file.
LONG DIBSecWidth;
LONG DIBSecHeight;
LONG BitsPerPixel;
LONG Stride;
BITMAPINFO* bmi;
BYTE* pDIBSectionBits;
HBITMAP hbm;
Graphics* imagedisp;
Bitmap* offscreenBitmap;
RECT m_imagedisp_rect;
BOOL m_BUpdate;
Then in my OnInitDialog() function, I do the following
DIBSecWidth = 512;
DIBSecHeight = 512;
BitsPerPixel = 8;
Stride = ((DIBSecWidth* BitsPerPixel + 31L) & (~31L)) / 8L;
bmi = (BITMAPINFO *)new BYTE[sizeof(BITMAPINFO) + UCHAR_MAX * sizeof(RGBQUAD)];
bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi->bmiHeader.biWidth = DIBSecWidth;
bmi->bmiHeader.biHeight = DIBSecHeight;
bmi->bmiHeader.biPlanes = 1;
bmi->bmiHeader.biBitCount = (WORD)BitsPerPixel;
bmi->bmiHeader.biCompression = BI_RGB;
bmi->bmiHeader.biSizeImage = 0;
bmi->bmiHeader.biXPelsPerMeter = 0;
bmi->bmiHeader.biYPelsPerMeter = 0;
bmi->bmiHeader.biClrUsed = 0;
bmi->bmiHeader.biClrImportant = 0;
memcpy(bmi->bmiColors, summercmap, 256*sizeof(RGBQUAD));
hbm = ::CreateDIBSection(NULL, bmi, DIB_RGB_COLORS, (void**)&pDIBSectionBits, NULL, 0);
offscreenBitmap = new Bitmap(bmi, pDIBSectionBits);
ImageDisplay.GetClientRect(&m_imagedisp_rect);
imagedisp = new Graphics(ImageDisplay.GetDC()->GetSafeHdc());
m_BUpdate = true;
and in OnPaint() message handler I have the following
CPaintDC dc(this);
if (m_BUpdate)
{
BYTE *pCurRowPixel = (BYTE *)(pDIBSectionBits);
memcpy(pCurRowPixel, m_pImgBuffPrc, DIBSecWidth*DIBSecHeight);
imagedisp->DrawImage(offscreenBitmap, 0, 0, DIBSecWidth, DIBSecWidth);
m_BUpdate = false;
delete pCurRowPixel;
}
Whenever I run my application, it throws an error at imagedisplay->DrawImage function, if I comment it out it doesn't throw the error. I am sure there is something simple that I am missing here or the way I am trying to draw is not right, any ideas/suggestions?
thanks
PKNT
modified 21-Sep-15 13:49pm.
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