C / C++ / MFC

anilga wrote:

hey there tell me how to communicate with the printer

anilga wrote:

hey there tell me how to communicate with the printer ... Give me a sample code

fprintf(stdprn, "Hi\n");

UINT SendToPrinter(LPVOID pData){
//stuff goes here
}

iwt.dev wrote:

...i want the ok button enable...

#include <windows.h>
typedef int (*foo_ptr)(void);

static int foo()
{
    printf("Inside foo\n");
    return 20;
}
static void after_foo(){}


void main(int argc, char **argv)
{
    size_t foo_size = (LPBYTE)after_foo - (LPBYTE)foo;

//    foo_ptr p_foo = (foo_ptr) VirtualAlloc(0, foo_size, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
//    CopyMemory(p_foo, &foo, foo_size);
    foo_ptr p_foo = &foo;

    int res = (*p_foo)();
    printf("Result was: %d\n", res);
    printf("Size was: %d\n", foo_size);
}

char **argv = NULL;
	argv = (char**)malloc(3*sizeof(char*));
	argv[1] = (char*)malloc((20)*sizeof(char));
	argv[1] = "D:\\Input.jpg";
	cout<<argv[1];

char **argv = NULL;
argv = (char**)malloc(3*sizeof(char*));	
argv[0] = argv1[0];	
argv[1] = (char*)malloc((20)*sizeof(char));	
argv[1] = "D:\\Input.jpg";
::MessageBox(0,(LPWSTR)argv[1],(LPWSTR)"test",0);

char **argv = NULL;
	argv = (char**)malloc(3*sizeof(char*));	
	//argv[0] = argv1[0];	
	argv[1] = (char*)malloc((20)*sizeof(char));	
	argv[1] = "D:\\Input.jpg";
	::MessageBox(0,(LPCTSTR)argv[1],(LPCTSTR)"test" ,0);

PrafullaShirke27 wrote:

argv[1] = (char*)malloc((20)*sizeof(char));
argv[1] = "D:\\Input.jpg";

raju_Code wrote:

char **argv = NULL;
argv = (char**)malloc(3*sizeof(char*));
argv[0] = argv1[0];
argv[1] = (char*)malloc((20)*sizeof(char));
argv[1] = "D:\\Input.jpg";
::MessageBox(0,(LPWSTR)argv[1],(LPWSTR)"test",0);

TCHAR * argv[3];
// here you may need a conversion if argv1 is an ANSI string 
argv[1] = _T("D:\\Input.jpg");
::MessageBox(0, argv[1],_T("test"),MB_OK);

raju_Code wrote:

argv[1] = (char*)malloc((20)*sizeof(char));
argv[1] = "D:\\Input.jpg";