Code:
/*-----------------------------------------
CLIPTEXT.C -- The Clipboard and Text
(c) Charles Petzold, 1998
-----------------------------------------*/
#include <windows.h>
#include "resource.h"
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
#ifdef UNICODE
#define CF_TCHAR CF_UNICODETEXT
TCHAR szDefaultText[] = TEXT ("Default Text - Unicode Version") ;
TCHAR szCaption[] = TEXT ("Clipboard Text Transfers - Unicode Version") ;
#else
#define CF_TCHAR CF_TEXT
TCHAR szDefaultText[] = TEXT ("Default Text - ANSI Version") ;
TCHAR szCaption[] = TEXT ("Clipboard Text Transfers - ANSI Version") ;
#endif
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("ClipText") ;
HACCEL hAccel ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = szAppName ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, szCaption,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
hAccel = LoadAccelerators (hInstance, szAppName) ;
while (GetMessage (&msg, NULL, 0, 0))
{
if (!TranslateAccelerator (hwnd, hAccel, &msg))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static PTSTR pText ;
BOOL bEnable ;
HGLOBAL hGlobal ;
HDC hdc ;
PTSTR pGlobal ;
PAINTSTRUCT ps ;
RECT rect ;
switch (message)
{
case WM_CREATE:
SendMessage (hwnd, WM_COMMAND, IDM_EDIT_RESET, 0) ;
return 0 ;
case WM_INITMENUPOPUP:
EnableMenuItem ((HMENU) wParam, IDM_EDIT_PASTE,
IsClipboardFormatAvailable (CF_TCHAR) ? MF_ENABLED : MF_GRAYED) ;
bEnable = pText ? MF_ENABLED : MF_GRAYED ;
EnableMenuItem ((HMENU) wParam, IDM_EDIT_CUT, bEnable) ;
EnableMenuItem ((HMENU) wParam, IDM_EDIT_COPY, bEnable) ;
EnableMenuItem ((HMENU) wParam, IDM_EDIT_CLEAR, bEnable) ;
break ;
case WM_COMMAND:
switch (LOWORD (wParam))
{
case IDM_EDIT_PASTE:
OpenClipboard (hwnd) ;
if (hGlobal = GetClipboardData (CF_TCHAR))
{
pGlobal = GlobalLock (hGlobal) ;
if (pText)
{
//delete pText;
free (pText) ;
pText = NULL ;
}
//pText = new PTSTR;
pText = malloc (GlobalSize (hGlobal)) ;
lstrcpy (pText, pGlobal) ;
InvalidateRect (hwnd, NULL, TRUE) ;
}
CloseClipboard () ;
return 0 ;
case IDM_EDIT_CUT:
case IDM_EDIT_COPY:
if (!pText)
return 0 ;
//There might be a c++ equivilant for this
hGlobal = GlobalAlloc (GHND | GMEM_SHARE,
(lstrlen (pText) + 1) * sizeof (TCHAR)) ;
pGlobal = GlobalLock (hGlobal) ;
lstrcpy (pGlobal, pText) ;
GlobalUnlock (hGlobal) ;
OpenClipboard (hwnd) ;
EmptyClipboard () ;
SetClipboardData (CF_TCHAR, hGlobal) ;
CloseClipboard () ;
if (LOWORD (wParam) == IDM_EDIT_COPY)
return 0 ;
// fall through for IDM_EDIT_CUT
case IDM_EDIT_CLEAR:
if (pText)
{
//delete pText;
free (pText) ;
pText = NULL ;
}
InvalidateRect (hwnd, NULL, TRUE) ;
return 0 ;
case IDM_EDIT_RESET:
if (pText)
{
//delete pText;
free (pText) ;
pText = NULL ;
}
//pText = new PTSTR;
pText = malloc ((lstrlen (szDefaultText) + 1) * sizeof (TCHAR)) ;
lstrcpy (pText, szDefaultText) ;
InvalidateRect (hwnd, NULL, TRUE) ;
return 0 ;
}
break ;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
GetClientRect (hwnd, &rect) ;
if (pText != NULL)
DrawText (hdc, pText, -1, &rect, DT_EXPANDTABS | DT_WORDBREAK) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
if (pText)
//delete pText;
free (pText) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
*note: you may need "resource.h" in order to compile this.. this can be provided on request.