C / C++ / MFC

10-Sep-09 17:00

Hi Folks

I have tried load image using this ...

CImage img; img.Load(_T("read.tif"));

Actully this is one full image .

but i need to cut in particular piece of that image.

image contains only two colors Black(RGB - 0 0 0) and white(RGB - 255 255 255)

i did only the load images ..but i dont know the further process what i can do??!!!!

Please help me !!!!!!!!11

Regards

~~~~~~~~~~~~~Raju~~~~~~~~~~~~~

Naveen10-Sep-09 17:28

10-Sep-09 17:28

You can use the Draw() function of the CImage to draw only a portion of the image. That is.

1. Create a memory dc
2. create a bitmap (createcompatiblebitmap() )
3. Select the bitmap to the dc.
4. Call CImage::Draw() funcion and pass the above created DC.

Now the bitmap that you created in step 2, will be having the image you want.

Game-point10-Sep-09 18:09

10-Sep-09 18:09

Thanks for your replay!!!!!!

void CImageReaderDlg::OnBnClickedButtonLoad()
{
	
	CImage img;
	img.Load(_T("read.tif"));
	int nWidth=img.GetWidth();
	int nHeight=img.GetHeight();
	CClientDC dc(this);
	CString str;
	CPen ps;

	for (double i=nWidth ; i > nWidth/2 ; i--)
	{
		for (double j=nHeight;j>nHeight/2;j--)
		{
			COLORREF clr=img.GetPixel(i,j);
			//Find RGB value
			int Rvalue=GetRValue(clr);
			int Gvalue=GetGValue(clr);
			int Bvalue=GetBValue(clr);
			if(Rvalue == 255 && Gvalue == 255 && Bvalue == 255)
			{
				ps.CreatePen(PS_SOLID,i,RGB(255,0,0));
				dc.SelectObject(&ps);
				dc.MoveTo(i,j);
				dc.LineTo(i,j);
			}
		}
	}
}

its not drawing any colors in image ..what i can wrong here please suggest me !!

~~~~~~~~~~~~~Raju~~~~~~~~~~~~~

Naveen10-Sep-09 18:13

10-Sep-09 18:13

rajugis wrote:
img.Load(_T("read.tif"));

Is the Load success? check the return value.

rajugis wrote:
ps.CreatePen(PS_SOLID,i,RGB(255,0,0)); dc.SelectObject(&ps); dc.MoveTo(i,j); dc.LineTo(i,j);

Instead of the above, use SetPixel() function.

Game-point10-Sep-09 18:18

10-Sep-09 18:18

yes naveen ..its success .....

~~~~~~~~~~~~~Raju~~~~~~~~~~~~~

Naveen10-Sep-09 18:19

10-Sep-09 18:19

Any luck after using SetPixel() ?

Game-point10-Sep-09 18:29

10-Sep-09 18:29

i have another one prob ..

when come to the loop ...its showing debug assertion failed !!

and i dont know how to use setpixel function

please help me !!!!!!!!

~~~~~~~~~~~~~Raju~~~~~~~~~~~~~

Naveen10-Sep-09 19:11

10-Sep-09 19:11

rajugis wrote:
when come to the loop ...its showing debug assertion failed !!

At which line? Press the retry button and see at which line assertion occured.

rajugis wrote:
and i dont know how to use setpixel function

Well check MSDN[^]

Game-point10-Sep-09 19:40

what will happen when i terminate a process?

10-Sep-09 19:40

Hi naveen

void CCBIView::OnDraw(CDC* pDC)
{
	CCBIDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;
	CImage image;
	CPen ps;
	//CClientDC dc(this);
	image.Load (_T("read.tif"));
	int w,h;
	w = image.GetWidth();
	h = image.GetHeight();
	int color;
	COLORREF clr;
	for(int i = 0 ; i < w ; i ++)
	for(int j = 0 ; j < h; j ++)
	{		
			color = image.GetPixel(i,j);
			clr=image.GetPixel(i,j);
			int Rvalue=GetRValue(clr);
			int Gvalue=GetGValue(clr);
			int Bvalue=GetBValue(clr);
			if(Rvalue == 0 && Gvalue == 0 && Bvalue == 0)
			{
				//ps.CreatePen(PS_SOLID,i,RGB(255,0,0));
				pDC ->SetPixel (i,j,color);
			}	
	//		img.SetPixel(i,j,clr);
	
	
	
	}
	// TODO: add draw code for native data here
}

now its ok but too slow ...

and how to make one vertical and horizontal line in the image ..

PLease.....

~~~~~~~~~~~~~Raju~~~~~~~~~~~~~

iceman861610-Sep-09 14:25

iceman8616

10-Sep-09 14:25

hi everybody, what will happen when i terminate a prcocess on the windows taskmanager?
Can the process make some action before killed?

Randor 10-Sep-09 15:04

Randor

10-Sep-09 15:04

Hi iceman,

Do you have a C/C++ related question? I fail to see how your question applies to the board topic.

Best Wishes,
-David Delaune

Naveen10-Sep-09 17:23

10-Sep-09 17:23

iceman8616 wrote:
Can the process make some action before killed?

No. The process will not get any clue when it is terminated from the taskmanager.

Randor 10-Sep-09 17:33

Randor

10-Sep-09 17:33

Naveen wrote:
No. The process will not get any clue when it is terminated from the taskmanager.

Hi Naveen,

Are you sure about that? The task manager uses two methods of terminating an application depending on which tab is selected. One of them can be ignored by an application.

Best Wishes,
-David Delaune

Naveen10-Sep-09 17:40

10-Sep-09 17:40

Randor wrote:
task manager uses two methods of terminating an application depending on which tab is selected.

Hi David,

I mean the "EndProcess" option in the "Process" tab of the task manager( I guess it uses TerminateProcess()). It is the "End task" option in the "Application" tab that can be igonred( which sends a WM_CLOSE message ). right? Please correct me if I am wrong.

Randor 10-Sep-09 17:46

Randor

10-Sep-09 17:46

Yes, the 'End Task' button on the 'Application' tab simply sends a WM_CLOSE message. You can see this with the Spy++ utility. An application or malware could potentially ignore this message.

Best Wishes,
-David Delaune

Stuart Dootson10-Sep-09 20:32

Stuart Dootson

10-Sep-09 20:32

I believe so - I think the window gets a WM_CLOSE or WM_QUIT first (can't remember which) and if it doesn't die pretty quickly, it then gets terminated with TerminateProcess.

I think that's how it works, anyway.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Matching function for the code

kilt14-Sep-09 2:27

kilt

14-Sep-09 2:27

Simply see the Taskmgr.exe source code (C, Win32 group[^])

Waldemar Ork10-Sep-09 9:21

Waldemar Ork

10-Sep-09 9:21

Hi, Everybody,
In the code underneath the compiler says there's no matching function for
GetNextComb.I marked the place where it refuses to compile the programme. What should I do ?

#include <cstdlib>
#include "IndexCombination.h"
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <iterator>
#include <map>
#include <sstream>
using namespace std;
using namespace stdcomb;

      struct Element
{
   char name[6];
   int numbers[30];
   char chain[90];
};

const Element elements[] = {
   {
         "ia11",
         {3,9,17,21,24,31,33,36,42,49,4,8,19,22,28,30,34,39,43,47,2,6,10,13,14,25,29,37,38,46},
         "3,9,17,21,24,31,33,36,42,49,4,8,19,22,28,30,34,39,43,47,2,6,10,13,14,25,29,37,38,46"
   }, {
         "ia34",
         {1,6,12,15,22,27,31,32,41,42,4,7,14,17,23,30,33,36,45,48,2,9,13,18,21,26,34,39,44,49},
         "1,6,12,15,22,27,31,32,41,42,4,7,14,17,23,30,33,36,45,48,2,9,13,18,21,26,34,39,44,49"
   }, {
         "ia72",
         {3,8,11,18,22,25,36,37,43,46,1,6,16,17,23,28,35,40,41,44,2,5,12,19,24,27,31,34,42,49},
         "3,8,11,18,22,25,36,37,43,46,1,6,16,17,23,28,35,40,41,44,2,5,12,19,24,27,31,34,42,49"
   }, {
         "ia167",
         {3,4,12,15,21,28,32,39,47,48,6,9,16,17,29,30,31,38,41,42,7,8,11,20,26,27,34,35,45,46},
         "3,4,12,15,21,28,32,39,47,48,6,9,16,17,29,30,31,38,41,42,7,8,11,20,26,27,34,35,45,46"
   }, {
         "ia190",
         {3,10,11,14,22,23,32,35,43,44,6,9,16,19,24,29,37,38,45,48,2,5,13,18,25,30,31,40,41,0},
         "3,10,11,14,22,23,32,35,43,44,6,9,16,19,24,29,37,38,45,48,2,5,13,18,25,30,31,40,41,0"
   }, {
         "ia21",
         {2,5,16,19,25,30,34,39,45,48,1,9,12,13,21,24,33,36,44,49,3,8,15,20,23,26,35,40,43,46},
         "2,5,16,19,25,30,34,39,45,48,1,9,12,13,21,24,33,36,44,49,3,8,15,20,23,26,35,40,43,46"
   }, {
         "ia64",
         {6,9,13,20,28,29,33,40,43,48,2,7,16,19,24,27,31,34,44,47,5,8,14,17,21,30,32,37,41,46},
         "6,9,13,20,28,29,33,40,43,48,2,7,16,19,24,27,31,34,44,47,5,8,14,17,21,30,32,37,41,46"
   }, {
         "ia102",
         {4,9,14,19,22,29,35,38,46,47,5,8,13,16,21,26,33,40,41,48,6,7,15,17,28,30,32,39,42,45},
         "4,9,14,19,22,29,35,38,46,47,5,8,13,16,21,26,33,40,41,48,6,7,15,17,28,30,32,39,42,45"
   }, {
         "ia178",
         {6,9,15,20,23,24,37,38,42,45,7,8,16,19,22,25,34,39,43,46,1,2,17,18,26,29,31,40,47,0},
         "6,9,15,20,23,24,37,38,42,45,7,8,16,19,22,25,34,39,43,46,1,2,17,18,26,29,31,40,47,0"
   }, {
         "ia180",
         {1,4,13,18,27,30,33,38,45,46,2,3,12,15,22,23,39,40,44,47,8,9,11,17,24,25,32,37,49,0},
         "1,4,13,18,27,30,33,38,45,46,2,3,12,15,22,23,39,40,44,47,8,9,11,17,24,25,32,37,49,0"
   }
};

int main(int argc, char *argv[])
{

   CIdxComb cb;
   cb.SetSizes(10,6);

   vector<int> combination(6);
   combination[0] = 0;
   combination[1] = 1;
   combination[2] = 2;
   combination[3] = 3;
   combination[4] = 4;
   combination[5] = 5;

   int Total = 0;
   bool GetNextComb(std::vector<unsigned int> &vi);

   while(cb.GetNextComb(combination))//the compiler stops here
   {
         Total++;
         cout << "Combination number. " << Total << endl;

         for (unsigned i = 0; i < combination.size(); i++)
         {
            const Element &element = elements[combination[i]];
            cout << element.name << ": " << element.chain << endl;
         }

         cout << endl;
   }

      system("PAUSE");
      return EXIT_SUCCESS;
}

Selvam R10-Sep-09 9:40

Selvam R

10-Sep-09 9:40

try to move the following line to outside main function

bool GetNextComb( std::vector<unsigned int> &vi );

Thanks and Regards,
Selvam,
http://www.wincpp.com

Maximilien10-Sep-09 9:43

Maximilien

10-Sep-09 9:43

You probably need to define the GetNextComb function; here you simply declared it (and the declaration should be out of the "main" function.

This signature was proudly tested on animals.

Stuart Dootson10-Sep-09 11:08

Stuart Dootson

10-Sep-09 11:08

The way you use GetNextComb, it's a method of CIdxComb. Your forward declaration (bool GetNextComb(std::vector<unsigned int> &vi);) is for a free function, not a method of CIdxComb.

So, you need to add GetNextComb to the definition of CIdxComb.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p