#include <windows.h>
#include <stdlib.h>
 
int CALLBACK WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR cmdLn, int nShowCmd)
{
    HGLOBAL   hglb; 
    LPTSTR    lptstr; 
    char *txt = 0;
    int txtlen;
    
    // check that it is possible to get the clipboard as plain text
    if (!::IsClipboardFormatAvailable(CF_TEXT)) 
        return 1;
    
    // open the clipboard and grab the data as text
    if (!::OpenClipboard(NULL)) 
        return 1; 
    hglb = ::GetClipboardData(CF_TEXT); 
    
    // get the data and stick it into a local buffer
    if (hglb != NULL) 
    { 
        lptstr = (LPTSTR)::GlobalLock(hglb); 
        if (lptstr != NULL) 
        { 
            txtlen = strlen(lptstr);
            if(txtlen>0)
            {
                txt = (char*)malloc(txtlen+1);
                if(txt)
                    strcpy(txt, lptstr);
            }               
            
            ::GlobalUnlock(hglb); 
        } 
    } 
    
    if(!txt)
    {
        ::CloseClipboard(); 
        return 1;        
    }
    
    // empty the existing contents of the clipboard
    ::EmptyClipboard(); 
    
    // try to get a global buffer for the text
    HGLOBAL hglbCopy = ::GlobalAlloc(GMEM_MOVEABLE, txtlen+1);     
    if (hglbCopy == NULL) 
    { 
        ::CloseClipboard(); 
        return 1; 
    } 
  
    // copy local buffer into global buffer
    LPTSTR memPtr = (LPTSTR)::GlobalLock(hglbCopy); 
    memcpy(memPtr, txt, txtlen + 1);
    free(txt);  
    ::GlobalUnlock(hglbCopy); 
    
    // put global buffer on the clipboard
    ::SetClipboardData(CF_TEXT, hglbCopy); 
    
    ::CloseClipboard();     
    return 0;
}