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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
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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
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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
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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,
DWORD fdwReason,
LPVOID lpvReserved)
{<br />
return TRUE;<br />
}<br />
<br />
EXPORT void WINAPI Systray ()<br />
{<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 />
<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
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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 
Lewix
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how to convert a string to char so that i can get the ASCII value in vc++?
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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
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//Let string be
char string[]="acsd";
for(int i=0;i
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plz tell me how to convert a char to ascii using vc++?
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you can easily assign the ascii value to an integer variable....
int i;
char c='A';
i=c; // i is now 65.
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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
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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
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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
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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
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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??
ARSALAN MALIK
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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. 
suhredayan
There is no spoon.
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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
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Try this:-
int b;
int afunction() {
extern int b = 0;
...
}
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Try this
int b;
int afunction()
{
int *ptr= &b;
int b = 0;
.....
}
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could anyone plz tell me as soon as possible how to convert an unsigned char to const char using vc++ code?
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nehathoma wrote:
could anyone plz tell me as soon as possible how to convert an unsigned char to const char using vc++ code?
I believe we can do it that by using normal C++ code.
I think you are looking for conversion of unsigned char string to signed char string instead of unsigned char to signed char.
Here anyways, this Task can be accomplish by using typecasting! (if you don't know what exactly the type casting is? please refer to your TEXT book!)
unsigned char *unChar=(unsigned char*) "unsigned string";
char sigString[100];
strcpy(sigString,(const char*)unChar);
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
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ThatsAlok wrote:
I believe we can do it that by using normal C++ code.
I think you are looking for conversion of unsigned char string to signed char string instead of unsigned char to signed char.
Here anyways, this Task can be accomplish by using typecasting! (if you don't know what exactly the type casting is? please refer to your TEXT book!)
//typecasting By direct initialization
unsigned char *unChar=(unsigned char*) "unsigned string";
//second Unsigned char string to signed char string
char sigString[100];
strcpy(sigString,(const char*)unChar);
Which C++ book did you see the type casting as above ?
suhredayan
There is no spoon.
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I asked her to get concept of Typecasting by reading the Book.
Anyways some books taught you typecasting by using macro like static_cast, reinterpret_cast and dyanamic_cast
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
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ThatsAlok wrote:
Anyways some books taught you typecasting by using macro like static_cast, reinterpret_cast and dyanamic_cast
Dear Alok,
static_cast, reinterpret_cast etc are not macros. They are casting operators in C++ language.
suhredayan
There is no spoon.
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