C / C++ / MFC

//In the header file
#define	Digital_Event		1
// Message for 1553 interrupts
	afx_msg LRESULT OnDigitalInterrupt(UINT wParam, LONG lParam);

// In the Main MFC file of the application
const UINT WM_INTERRUPT_DIGITAL = WM_APP + 1;
HWND	g_hMainHWND;

BEGIN_MESSAGE_MAP(CDigitalPnPDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	// Interrupt for Digital
	ON_MESSAGE(WM_INTERRUPT_DIGITAL, OnDigitalInterrupt)

// In the Dialog Init routine
	g_hMainHWND = this->GetSafeHwnd();

LRESULT CDigitalPnPDlg::OnDigitalInterrupt(UINT wParam, LONG lParam)
{
	/* This routine is called every 20 msec by the interrupt from the
		board. 	*/
	if(wParam == Digital_Event)
		manage_timers();
	return 0;
}


// In the interrupt routin
	/* Arrange for the processing of the 20 msec interrupt in the main application	*/
	PostMessage(g_hMainHWND, WM_INTERRUPT_DIGITAL, Digital_Event, NULL);

enhzflep wrote:

In fact, one of the very reasons I avoided coding windows programs for quite a while was the fact that it was considerably more difficult to write code that would interact with hardware directly.

class CTest1
{
public:
    // This is your callback routine
    static void _DigitalInt(void * pData);

public:
    // This is the method that does the work.
    void DigitalInt(void);
};

void CTest1::_DigitalInt(void * pData)
{
    ((CTest1 *) pData)->DigitalInt();
}

void CTest1::DigitalInt(void)
{
// Do Stuff here.
}

sujandasmahapatra wrote:

Is this code correct, m_pView will initialized before the constructor called right ?

#include <stdio.h>
#include <string.h>

#define MAX_LEN_SINGLE_LINE     120
#define bufsize 1024

int main()
{

	 char fileOrig[32] = "test.txt";
	 char fileRepl[32] = "myReplacedFile.txt";

	 const char text2find[80] = " READ ";
	 const char text2repl[80] = "# READ ";
	 int c, line=0;

	    char buffer[MAX_LEN_SINGLE_LINE+2];
	    char *buff_ptr, *find_ptr, *tok;
	    FILE *fp1, *fp2;
	    size_t find_len = strlen(text2find);

	    fp1 = fopen(fileOrig,"r+");
	    fp2 = fopen(fileRepl,"w+");
	    int i;


	    while(fgets(buffer,MAX_LEN_SINGLE_LINE+2,fp1))
	    {
	        buff_ptr = buffer;

	       	while ((find_ptr = strstr(buff_ptr,text2find)))
	       	{
	       		while ((c = fgetc(fp1)) == '.')
	       		{
	       			if (c == '\n')
	       				fputc("#",fp2);
	       			else ;
	       		}

	        		while(buff_ptr < find_ptr)
	                fputc((int)*buff_ptr++,fp2);

	        	fputs(text2repl,fp2);

	            buff_ptr += find_len;

	        }
	        	fputs(buff_ptr,fp2);

	    }



	   fclose(fp2);
	   fclose(fp1);
	   return 0;

}

BOOL bPrefix = FALSE;

while(fgets(buffer, sizeof(buffer), fp1))
{
    if (strncmp(buffer, "READ", 4) == 0)
        bPrefix = TRUE;
    else if (buffer[strlen(buffer) - 1] == '.')
        bPrefix = FALSE;

    if (bPrefix)
        fputc('#', fp2);

    fputs(buffer, fp2);
}