C / C++ / MFC

prasad_som13-Dec-06 2:29

13-Dec-06 2:29

You need to look in to WM_PAINT, in WndProc function, that is where painting operation occurs.

Or I've misinterpreted again !

Prasad
Notifier using ATL | Operator new[],delete[][^]

Programm3r13-Dec-06 2:53

Programm3r

13-Dec-06 2:53

How would one add buttons & listboxes & textboxes ?? Confused | :confused:

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

prasad_som13-Dec-06 3:09

13-Dec-06 3:09

You need to handle this in WM_CREATE message.
Add this code to your WndProc in switch statement.

case WM_CREATE:
{
  HWND HwND = CreateWindow("BUTTON","My Button", WS_CHILD |
  WS_VISIBLE | BS_PUSHBUTTON , 20,20, 50,50,hWnd,(HMENU)    ID_BUTTON1,hInst,NULL);
  ShowWindow(HwND,SW_SHOW);
 } //ID_BUTTON1 is unique identifier

Prasad
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Programm3r13-Dec-06 3:46

Programm3r

13-Dec-06 3:46

Thnx Prasad...

And you have to do it for each component you would like to add? Isn't there an easier way?

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

prasad_som13-Dec-06 4:45

Dynamically displaying Visual TextBoxes - Labels

13-Dec-06 4:45

Programm3r wrote:
Isn't there an easier way?

Nope .
Thats why MFC comes up.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Programm3r13-Dec-06 0:58

Programm3r

13-Dec-06 0:58

Hi all,

Take the follwoing into consideration:

vector<string> getSecNameString = CIniFile::GetSectionNames(FileName);
for(int i=0; i < (int)getSecNameString.size(); i++)
{
    cout << "\n** Section Name ** -> " << getSecNameString[i].c_str() << endl;
    vector<CIniFile::Record> getSecString = CIniFile::GetSection(getSecNameString[i], FileName);
    printf("\n.... GetSection Keys & Values ..... \n");
    printf("--------------------------------------\n");
    for(int i=0; i < (int)getSecString.size(); i++)
        cout << getSecString[i].Key.c_str() << "=" << getSecString[i].Value << endl;
}

The output would look someting like this:

[Section A]
keyA=1
keyB=2
{Section B]
keyC=3
keyD=4

O.k so now one wants to put each of these values into labels and textboxes.
For example the following must happen (Non-visual example):
label1 -> keyA
textBox1 -> 1
label2 -> keyB
textBox1 -> 2
and so on...
Please note that one would not know the limit of each section or key, and don't mind the "[]"

Thanx in advance

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

linker error for library

rgchezhian13-Dec-06 0:47

rgchezhian

13-Dec-06 0:47

Hi,

i have developed .lib for logger from opensource called log4cxxx.
they have given samples to use the .lib file. while i am using functions (which are implemented in .lib) with string parameters got link error

rror LNK2001: unresolved external symbol "public: void __thiscall log4cxx::Logger::debug(class std::basic_string<char,struct std::char_traits<char="">,class std::allocator<char> > const &,char const *,int)" (?debug@Logger@log4cxx@@QAEXAB
V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@PBDH@Z)
../Bin/Static Debug/trivial.exe : fatal error LNK1120: 1 unresolved externals

where as i didn't get any error for functions with integers.

function protype

void Logger::debug(const String& message,const char* file=0, int line=-1);

i am using

const char *file1="log.txt";
debug("debug info",file1,100);

can anyone help on this issue.i am using vc6.0.

advance thanks

Re: linker error for library

Laxman Auti13-Dec-06 19:13

Laxman Auti

13-Dec-06 19:13

rgchezhian wrote:
"public: void __thiscall log4cxx::Logger::debug(class std::basic_string,class std::allocator > const &,char const *,int)"

Please go through the function prototype again. There may be some mismatch.

If that is OK then try to link the libray as following preprocesser directive.
#pragma comment(lib,"full path of library")
put above line in .cpp file below the header includes

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

Question

messages13-Dec-06 0:28

13-Dec-06 0:28

Hi everyone,
Maybe my question is funny but I want to know what is it?

CMap<UINT,UINT,UINT,UINT> Map;Map m_Map;or CList <int> m;
or typedef CMap<UINT,UINT,UINT,UINT> m_Map;I know that typedef declare a new kind of an exist kind

prasad_som13-Dec-06 2:12

13-Dec-06 2:12

messages wrote:
I know that typedef declare a new kind of an exist kind

Then what else you want to know ?

Prasad
Notifier using ATL | Operator new[],delete[][^]

messages13-Dec-06 19:03

13-Dec-06 19:03

Hi thanks for your help
I want to know what is it CMap<> or CList<>

prasad_som13-Dec-06 19:11

13-Dec-06 19:11

messages wrote:
I want to know what is it CMap<> or CList<>

This means that, these classes requires templete arguments.

Prasad
Notifier using ATL | Operator new[],delete[][^]

messages13-Dec-06 19:27

13-Dec-06 19:27

Sorry I ask again I have another question can you explain for me For example what is it CMap<int,int,int> Map; Map m;
thank you prasad_som

prasad_som13-Dec-06 19:34

13-Dec-06 19:34

Possibly you are asking, what is

typedef CMap<UINT,UINT,UINT,UINT> Map;
 Map m.

Because, what you have asked is not possible.

Its used just to increase redability.

Prasad
Notifier using ATL | Operator new[],delete[][^]

messages13-Dec-06 19:53

13-Dec-06 19:53

When we must use of this case of course I know its depends to our program
I cant understand what is it typedef CMap<UINT,UINT,UINT,UINT> Map; Map m.

prasad_som13-Dec-06 20:05

13-Dec-06 20:05

messages wrote:
typedef

typedef is keyword for declaring synonym for type declarations.
i.e.
typedef char TCHAR;
Now, TCHAR
can be used instead of char.

messages wrote:
what is it typedef CMap<uint,uint,uint,uint> Map; Map m.

typedef CMap<UINT,UINT,UINT,UINT> Map;

This statement indicates Map is synonym of CMap<UINT,UINT,UINT,UINT> .So statement
Map m ; is actually CMap<UINT,UINT,UINT,UINT> m;

Prasad
Notifier using ATL | Operator new[],delete[][^]

Laxman Auti13-Dec-06 19:20

Laxman Auti

13-Dec-06 19:20

messages wrote:
I want to know what is it CMap<> or CList<>

These are wrapper classes for STL::map and STL:list respectively.
Go through the following article for more info about maps.
http://www.codeproject.com/cpp/cmap_howto.asp[^]

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

messages13-Dec-06 19:28

13-Dec-06 19:28

Thank you this link is very helpful Laugh | :laugh:

prasad_som13-Dec-06 19:42

13-Dec-06 19:42

A_LaxmanThese are wrapper classes for STL::map and STL:list respectively

No, these aren't.

A_LaxmanGo through the following article for more info about maps.
http://www.codeproject.com/cpp/cmap_howto.asp[^]

You can see , MFC has its own implementation.

Prasad
Notifier using ATL | Operator new[],delete[][^]

TextOut & True Type Fonts

Laxman Auti13-Dec-06 19:58

Laxman Auti

13-Dec-06 19:58

prasad_som wrote:
You can see , MFC has its own implementation.

Yes, There is seperate implementation for CMap in MFC.
Thanks for update. Smile | :)

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

PsychicSmurf13-Dec-06 0:02

PsychicSmurf

13-Dec-06 0:02

I have a transparent image (BMP) that I want to be able to place text on.

I have used SekBkMode to set TRANSPARENT, and also set the brush to bsClear.

This works great for old-style fonts, however True Type fonts seem to have some kind of anti-aliasing built it. When these fonts are drawn onto the canvas (at larger font sizes), the curves are edged in a colour halfway between the font colour and the transparent colour which makes them a little unsightly.

I can't just copy whats behind the text and use that as a background, as the layer beneath is liable to change at any time.

Is there any way to disable this effect?
Can I use fonts like Arial or Copperplate-Gothic-Light in font sizes above 16 without getting strange colours?

Calling an function in a DLL

JJeffrey12-Dec-06 23:59

JJeffrey

12-Dec-06 23:59

I'm sorry to disturb all of you, I feel like I'm missing something here.

I'm trying to use call a function in a DLL I have written and have so far done this:

DLL Side

int __stdcall Topo(LPSTR Param)<br />
{<br />
<code><br />
}

Calling Function side

typedef int (__stdcall * FuncPtr)(LPTSTR);<br />
<br />
int APIENTRY WinMain(HINSTANCE hInstance,<br />
                     HINSTANCE hPrevInstance,<br />
                     LPSTR     lpCmdLine,<br />
                     int       nCmdShow)<br />
{<br />
	HMODULE TopoPtr;<br />
	FuncPtr TopoFunc;<br />
	CHAR Output[50]={0};<br />
<br />
	if (TopoPtr = (HMODULE) LoadLibrary ("<location of DLL>") )<br />
	{		<br />
		TopoFunc  = (FuncPtr)GetProcAddress(TopoPtr, "Topo");<br />
		if ( TopoFunc && TopoPtr )<br />
		{<br />
			TopoFunc(<Params>);<br />
		}<br />
		FreeLibrary ( TopoPtr );<br />
	}<br />
<br />
	return 0;<br />
}

Export.def

LIBRARY CheckTopo<br />
EXPORTS<br />
     Topo	@1

The error is this: When I call TopoFunc, I get a stack overflow. Tracing it by stepping through, I find that the stack overflow occurs BEFORE I enter the code in the DLL Side. Is there something wrong with my calling of the function? Or is it nothing to do with that and that I should be looking at something else?

Re: Calling an function in a DLL

prasad_som13-Dec-06 0:14