C / C++ / MFC

Re: convert ascii to char and ascii to string?

17-Apr-05 23:13

can anyone plz tell me how to convert an ascii to string and ascii to char using vc++

Arsalan Malik17-Apr-05 23:58

Arsalan Malik

17-Apr-05 23:58

What you mean by "ascii"?? Do mean ascii value as an integer or ascii value as a string, i.e. Do you want to convert something like "979899" into "abc"?? Please clarify Confused | :confused:

ARSALAN MALIK

Coloured Line

javi_jmc17-Apr-05 22:59

17-Apr-05 22:59

Hello to everyody,

I want to draw a line thta connect two points...
I have to paint the line of one color...until here it's ok

But the problem is that I have to paint a piece of it of another color from one point to a distance done.

How can i do it? Because maybe i will need a line equation?

Thanks

Re: Coloured Line

Arsalan Malik17-Apr-05 23:55

Arsalan Malik

17-Apr-05 23:55

You will definitly need line equation. If you require only two colors (not graduated), i suggest you to draw two lines instead of one using different color. You need to find the coordinate of dividing point using line equation etc.

ARSALAN MALIK

DrawText Font

javi_jmc17-Apr-05 22:47

Re: jpeg Dialog Background

17-Apr-05 22:47

Hi,

I change the font of the Window...and when i do DrawText it doen't work...with TextOut YES but with DrawText NOT...why? How can i do it with DrawText?

This is the code i use to set the font

CFont font;
LOGFONT lf;
memset(&lf, 0, sizeof(LOGFONT)); // zero out structure
lf.lfHeight = 12; // request a 12-pixel-height font
strcpy(lf.lfFaceName, "Arial"); // request a face name "Arial"
VERIFY(font.CreateFontIndirect(&lf)); // create the font

// Do something with the font just created...
CClientDC dc(this);
CFont* def_font = dc.SelectObject(&font);
dc.TextOut(5, 5, "Hello", 5);
dc.SelectObject(def_font);

// Done with the font. Delete the font object.
font.DeleteObject();

Thanks

MFC DLL's

charu12317-Apr-05 22:34

charu123

17-Apr-05 22:34

Hi,

I want to create a DLL which puts and icon in the taskbar on click of tht icon an exe is run.

I wrote the following code.
The Compiler is not recognising the VERIFY Macro and AfxGetInstanceHandle method.
This code might be wrong becoz i ma jus trying .
Could someone help me out with this.

<br />
#include <windows.h><br />
#include <shellapi.h><br />
#include "example.h"<br />
#define MYWM_NOTIFYICON		(WM_USER+2)<br />
<br />
BOOL WINAPI DllMain (HINSTANCE hinstDLL,  // handle to the DLL module<br />
					 DWORD fdwReason,     // reason for calling function<br />
					 LPVOID lpvReserved)  // reserved<br />
{<br />
	return TRUE;<br />
}<br />
<br />
EXPORT void WINAPI Systray ()<br />
{<br />
//	CString sTip(_T("System Configuration"));	<br />
	DWORD dwMessage=NIM_ADD;<br />
	NOTIFYICONDATA tnd;<br />
	HWND m_hWnd;<br />
	tnd.cbSize		= sizeof(NOTIFYICONDATA);<br />
	tnd.hWnd		= m_hWnd;<br />
	tnd.uID			= IDR_TRAYICON;<br />
<br />
	tnd.uFlags		= NIF_MESSAGE|NIF_ICON;<br />
<br />
	tnd.uCallbackMessage	= MYWM_NOTIFYICON;<br />
<br />
	<br />
	VERIFY( tnd.hIcon = LoadIcon(AfxGetInstanceHandle(), MAKEINTRESOURCE (IDR_TRAYICON)) );<br />
<br />
	tnd.uFlags		= NIF_MESSAGE|NIF_ICON|NIF_TIP;<br />
<br />
	//lstrcpyn(tnd.szTip, (LPCTSTR)sTip, sizeof(tnd.szTip)/sizeof(tnd.szTip[0]) );<br />
	<br />
	Shell_NotifyIcon(dwMessage, &tnd);<br />
	<br />
	if(dwMessage == MYWM_NOTIFYICON)<br />
	{<br />
		if((LPARAM)tnd.uCallbackMessage==WM_LBUTTONDBLCLK)<br />
		{<br />
			if((WPARAM)tnd.uCallbackMessage==IDR_TRAYICON)<br />
			{<br />
				ShellExecute(NULL, "open", "http://www.brigsoft.com/", NULL, "", SW_SHOW);<br />
			}<br />
<br />
		}<br />
	}<br />
}<br />

Thanks

U get wht u Give

jpeg Dialog Background

lewix17-Apr-05 22:20

lewix

17-Apr-05 22:20

Hello,
i need to load (from a file, or from a resource) a jpg to set dialog background.
Anybody can help me, please?
I only found solutions for bitmpap files Frown | :(

Lewix

22491717-Apr-05 22:40

224917

17-Apr-05 22:40

http://support.microsoft.com/kb/q218972/[^]

suhredayan
There is no spoon.

how to convert a string to char so that i can get the ASCII value in vc++?

nehathoma17-Apr-05 21:05

Re: how to convert a string to char so that i can get the ASCII value in vc++?

17-Apr-05 21:05

how to convert a string to char so that i can get the ASCII value in vc++?

GDavy17-Apr-05 21:20

GDavy

17-Apr-05 21:20

if you want to convert a CString, I used the following once in a similar situation.
define the next:

#if defined (_UNICODE) || defined (UNICODE)
#define _tcstombs wcstombs
#else
#define _tcstombs strncpy
#endif

//in your code you can then convert CStrings to ascii strings--

CString sOriginalStr;
.... //somewhere here sOriginalStr gets a value
char* ascStr = new char[sOriginalStr.GetLength()+1];
_tcstombs(ascStr, sOriginalStr, sOriginalStr.GetLength()+1);

.. //do your thing with the ascistring

delete[] ascStr;

Hope this gets you along...
Greetz,
Davy

Re: how to convert a string to char so that i can get the ASCII value in vc++?

deldeep17-Apr-05 21:34

deldeep

17-Apr-05 21:34

//Let string be
char string[]="acsd";
for(int i=0;i

convert char to ascii in vc++

nehathoma17-Apr-05 21:04

Re: convert char to ascii in vc++

17-Apr-05 21:04

plz tell me how to convert a char to ascii using vc++?

Anonymous17-Apr-05 21:38

Anonymous

17-Apr-05 21:38

you can easily assign the ascii value to an integer variable....

int i;
char c='A';

i=c; // i is now 65.

Size Window

javi_jmc17-Apr-05 21:01

17-Apr-05 21:01

Hi,

I would like to create an ActiveX and I would like to resize the window to an specific size when the user tries to resize it. Someone has told me I have to use WM_SIZE adding all the code required inside it.

Which is this code? I have to use GetWindow?

Help please

Thanks a lot

Re: Size Window

ThatsAlok17-Apr-05 21:11

ThatsAlok

17-Apr-05 21:11

javi_jmc wrote:
Someone has told me I have to use WM_SIZE adding all the code required inside it.
this can't be TRUE as MSDN state that the application must not send WM_SIZE message to it's WINDOW

javi_jmc wrote:
to resize the window to an specific size

better use api's like [MoveWindow] and [SetWindowPos]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: Size Window

javi_jmc17-Apr-05 21:15

17-Apr-05 21:15

Thanks

But how can i do it? because i want to fix the initial window size of the ActiveX before adding it to the application

Sofware modems

TOMCAT8117-Apr-05 20:23

TOMCAT81

17-Apr-05 20:23

Hi All,
I want to write software modems(VC++/MFC/SDK).
Please let me know if any algorithm or links are available with you.

Thanks

Global Scope in C

Arsalan Malik17-Apr-05 20:15

Arsalan Malik

17-Apr-05 20:15

I have a situation similar to following:

int b;<br />
<br />
int afunction() {<br />
   int b = 0;<br />
   ...<br />
}<br />

I need to access global b in afunction?? C does not have :: operator. I cannot change the identifier of both local and global variable b. Is there a way around?? Confused | :confused:

ARSALAN MALIK

22491717-Apr-05 20:47

224917

17-Apr-05 20:47

Arsalan Malik wrote:
I need to access global b in afunction??
No, there is no such operator in C language.

Arsalan Malik wrote:
Is there a way around??
May be you can write a getter function for the global b. Wink | ;)

suhredayan
There is no spoon.

David Crow18-Apr-05 2:45

David Crow

18-Apr-05 2:45

Arsalan Malik wrote:
Is there a way around??

Yes, don't use b in both spots.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

CodeBeetle18-Apr-05 10:16

CodeBeetle

18-Apr-05 10:16

Try this:-

int b;

int afunction() {
extern int b = 0;
...
}

CodeBeetle.Com

convert unsigned char to const char in vc++

haritadala19-Apr-05 4:07

haritadala

19-Apr-05 4:07

Try this

int b;

int afunction()
{
int *ptr= &b;
int b = 0;
.....
}

nehathoma17-Apr-05 19:11