C / C++ / MFC

Re: About creat my DLL file ?

6-Mar-02 0:24

Alpha Intelligence wrote:
Wonderful Programme. Programme is art.

I completly agree with you Big Grin | :-D

I love programming too,specially programming with VC. Smile | :)

That's a wonderful world,there is nothing and you have some limited tools,then you have to create something new Smile | :)

Alpha Intelligence wrote:
Here, i wanna know how foreigner think about Chinese software. Is there any Chinese software in U.K's or U.S.A's market?

Sorry,I live in Iran and I'm not aware of U.K or U.S.A,and I haven't seen any Chinese program in my country,maybe there are some,but I don't know if they are from China or not. Smile | :)

Mazy

"So,so you think you can tell,
Heaven from Hell,
Blue skies from pain,...
How I wish,how I wish you were here."
Wish You Were Here-Pink Floyd-1975

MeteOS39-Mar-02 23:04

MeteOS3

9-Mar-02 23:04

Oh, I see. I think I should improve my programme level at once. I love my motherland. So I think I can Change the world! (c:
Big Grin | :-D

I want to become programmer!!!

Re: About creat my DLL file ?

Paul M Watt23-Feb-02 10:56

Hex String to Decimal long

23-Feb-02 10:56

Alpha Intelligence wrote:
And can I use Visual C++ to write C code

Simply name your file with a .c extension rather than .cpp, and DevStudio will use a C compiler in order to compile that file. You will need to be careful if you are trying to mix C compiled code with C++ compiled code however, because the C++ compiler will mangle the linker symbols in order to make function overloading possible.

soup23-Feb-02 1:47

soup

23-Feb-02 1:47

Hi,

This must be really simple, but I am struggling with this. If I have a string such as:

TCHAR hex[] = "0AF79E00";

How can I convert this into a long variable so I know it means:

184,000,000

Is this possible? Confused | :confused:

Thanks in advance,

Simon

Re: Hex String to Decimal long

Mazdak23-Feb-02 1:56

Re: Hex String to Decimal long

23-Feb-02 1:56

There are some articles in CP about it.
Check this and this

Mazy

"So,so you think you can tell,
Heaven from Hell,
Blue skies from pain,...
How I wish,how I wish you were here."
Wish You Were Here-Pink Floyd-1975

Chris Hafey23-Feb-02 7:50

Chris Hafey

23-Feb-02 7:50

use sscanf:

TCHAR hex[] = "0x0AF79E00";
int value;
sscanf(hex, "%X", &value);

Chris Hafey

Re: Hex String to Decimal long

soup23-Feb-02 14:11

soup

23-Feb-02 14:11

Cheers for the help guys. Smile | :)

I'm now back on track. Cool | :cool:

Simon

How create a pie or chord region

wangyiming22-Feb-02 23:50

wangyiming

22-Feb-02 23:50

I don't know how create a custom region!

thanks a lot!

Re: How create a pie or chord region

Paul M Watt23-Feb-02 10:03

23-Feb-02 10:03

You can call BeginPath on a DC, Then you could call your pie or chord function, and then End the path with EndPath, the path is stored inside of the region. Then you can call PathToRegion on that DC and a new region will be created with that path.

nothing appear!

Mazdak22-Feb-02 23:04

22-Feb-02 23:04

What's wrong with these code?Nothing appear in the screen!!!

void CMysView::OnPaint()
{
	CPaintDC dc(this); // device context for painting
	paintrect()

}

int CMyView::paintrect()
{
	CPaintDC dc(this);

	RECT rctA;
	rctA.left = 20;  
	rctA.top = 30;  
	rctA.right  = 180;  
	rctA.bottom = 230;


	dc.Rectangle(&rctA);

	return 0;
}

Mazy

"So,so you think you can tell,
Heaven from Hell,
Blue skies from pain,...
How I wish,how I wish you were here."
Wish You Were Here-Pink Floyd-1975

Joaquín M López Muñoz22-Feb-02 23:07

Joaquín M López Muñoz

22-Feb-02 23:07

I think you're supposed to do your drawing in CView::OnDraw instead.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Mazdak22-Feb-02 23:27

22-Feb-02 23:27

I know it ,but I want them outside OnPaint or OnDraw,any way it solve

Mazy

"So,so you think you can tell,
Heaven from Hell,
Blue skies from pain,...
How I wish,how I wish you were here."
Wish You Were Here-Pink Floyd-1975

Steen Krogsgaard22-Feb-02 23:22

Steen Krogsgaard

22-Feb-02 23:22

You get the paintDC twice in the same WM_PAINT message, afai remember that's not allowed and the second one won't work. If you passed the dc as a parameter to CMyView::paintrect instaed I bet it would work.

void CMysView::OnPaint()
{	
   CPaintDC dc(this); // device context for painting	
   paintrect(dc)
}


int CMyView::paintrect(CDC& dc)
{	
   RECT rctA;	
   rctA.left = 20;  	
   rctA.top = 30;  	
   rctA.right  = 180;  	
   rctA.bottom = 230;	
   dc.Rectangle(&rctA);	
   return 0;
}

Cheers
Steen.

"To claim that computer games influence children is rediculous. If Pacman had influenced children born in the 80'ies we would see a lot of youngsters running around in dark rooms eating pills while listening to monotonous music"

Mazdak22-Feb-02 23:25

22-Feb-02 23:25

thaaaaaaaaaaaaaaaanks,it woooooooooooooooooooorks
yohooooooooooooooooooooooooo Rose | [Rose]

Mazy

"So,so you think you can tell,
Heaven from Hell,
Blue skies from pain,...
How I wish,how I wish you were here."
Wish You Were Here-Pink Floyd-1975

Mazdak23-Feb-02 0:02

23-Feb-02 0:02

Now I want to use paintrect outside the OnPaint or OnDraw.How can I do that?

Mazy

"So,so you think you can tell,
Heaven from Hell,
Blue skies from pain,...
How I wish,how I wish you were here."
Wish You Were Here-Pink Floyd-1975

Tim Deveaux23-Feb-02 4:39

Tim Deveaux

23-Feb-02 4:39

You can pass the DC from OnPaint to your other drawing functions... so paintrect(CDC *pDC)...

Steen Krogsgaard24-Feb-02 0:54

Steen Krogsgaard

24-Feb-02 0:54

CMyView::SomeFunctionOtherThanOnPaintOrOnDraw()
{
   CClintDC dc;
   paintrect (dc);
}

Steen Krogsgaard24-Feb-02 0:56

Steen Krogsgaard

24-Feb-02 0:56

Sorry, forgot the paramter to CClientDC::CClientDC

CMyView::SomeFunctionOtherThanOnPaintOrOnDraw()
{
   CClientDC dc(this);
   paintrect (dc);
}

Paul M Watt23-Feb-02 10:34

How to load icon resource into hBitmap ?

23-Feb-02 10:34

The reason why this code will work instead is that in the constructor for CPaintDC, there is a call to BeginPaint in order to initialize the internal HDC. When begin paint is called, it sets something that is called the System region of the HDC.

For all intents and purposes, the System region is like a clipping region that cannot be changed. When you paint on a DC, the intersection of the system region, the clipping region, and the meta region are combined in order to give the developer the final region that is painted.

When a call to GetDC is made, the system region is set to the client area of the window.
When GetWindowDC is called, the system region is set to the window rect of the window.
When BeginPaint is called, the system region is set to the current invalid region of the window, then the invalid region is validated.

So, if you make two calls to BeginPaint, you will receive two successfully created DC's, however, the first one will contain a system region that has the invalid region set into it, and the second one will contain an empty second region. Therefore if you try to paint on the first region in one color, say blue, then it will succceed. Then if you try to paint on the second region in red, none of the operations would succeed because there is an empty second region.

22-Feb-02 22:53

How to load icon resource into hBitmap ?
thanx Rose | [Rose]

Re: How to load icon resource into hBitmap ?

Joaquín M López Muñoz22-Feb-02 23:15

Joaquín M López Muñoz

22-Feb-02 23:15

Starting from an HICON, <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/icons_2227.asp">::GetIconInfo</a> fills an <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/icons_9eya.asp">ICONINFO</a> structure whose hbmColor member is the HBITMAP you're looking for.
An alternative method is to draw your into a bitmap DC.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: How to load icon resource into hBitmap ?

23-Feb-02 3:18

Thanx

How to get the export table of a given module

22-Feb-02 22:52

How to get the export table of a given module using c/c++ (such as quickview in winnt4 or DEPENDS.EXE from vs6)
thanx Rose | [Rose]

Re: How to get the export table of a given module

Paul M Watt23-Feb-02 6:58