#WIN32API EM_STREAMIN 사용방법

DWORD CALLBACK EditStreamCallback(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG pcb)
			{
				HANDLE hFile = (HANDLE)dwCookie;
				if (ReadFile(hFile, lpBuff, cb, (DWORD *)pcb, NULL) != 0)
				{
					lpBuff = 0;
				}
				return 0;
			}
 
BOOL FillRichEditFromFile(HWND hwnd, LPCTSTR pszFile)
			{
 
				HANDLE hFile = CreateFile(pszFile, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING,	FILE_ATTRIBUTE_NORMAL, NULL);
				if (hFile != INVALID_HANDLE_VALUE) {
				EDITSTREAM es = {0};
				es.dwCookie = (DWORD)hFile;
				es.pfnCallback = EditStreamCallback;
 
				SendMessage(hwnd, EM_STREAMIN, (WPARAM)SF_RTF, (LPARAM)&es);
 
				CloseHandle(hFile);
				}
				return 0;
			}
 
 
INT_PTR WINAPI SetupDlgProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch(message)
	{
		case WM_INITDIALOG:
			{
			g_hDlgSetup = hWnd;
			HMODULE hMod = LoadLibrary(TEXT("Riched20.dll"));
			HANDLE hRich = CreateWindow(RICHEDIT_CLASS, NULL, WS_CHILD | WS_VISIBLE | WS_BORDER, 0, 0, 100, 100, hWnd, (HMENU)0, g_hInst, NULL);
 
			FillRichEditFromFile(g_hWnd, TEXT("C:\\test.rtf"));
 
			}break;
		case WM_CLOSE:
			{
				//FreeLibrary(hMod);
			ShowWindow(g_hWnd, SW_SHOW);
			EndDialog(g_hDlgSetup, 0);
			return 0;
			}break;
	}//switch_Message
	return 0;
}