有,好像加上CreateFile 的檢查之後,就可以成功執行了, 但是, 這是紀錄 開始時間, 在記錄結束時間的時候, 既然發現在執行 lstrcpy 的時候,使用GetLastError(), 出現 183的錯誤, 但是又不是開檔,怎麼會錯誤呢? 真讓我想不透!! 我想應該還有其他的方式寫入紀錄檔, 但是還蠻懷疑的, 這段程式的錯誤到底在哪裡?? 以下是全部的程式碼::
// memo02_1.cpp
// Note: fopen
#include <windows.h>
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
ATOM InitApp(HINSTANCE);
BOOL InitInstance(HINSTANCE, int);
int MyYmd(int);
TCHAR szClassName[] = TEXT("memo02_1");
HINSTANCE hInst;
TCHAR szFile[MAX_PATH];
TCHAR szFileTitle[MAX_PATH];
TCHAR szDate[128];
TCHAR szLogFile[] = TEXT("memo02_1.log");
int WINAPI WinMain(HINSTANCE hCurInst, HINSTANCE hPrevInst, LPSTR lpsCmdLine, int nCmdShow)
{
MSG msg;
BOOL bRet;
hInst = hCurInst;
if (!InitApp(hCurInst)) return FALSE;
if (!InitInstance(hCurInst, nCmdShow)) return FALSE;
while ((bRet = GetMessage(&msg, NULL, 0, 0)) != 0) {
if (bRet == -1) {
break;
} else {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return (int)msg.wParam;
}
ATOM InitApp(HINSTANCE hInst)
{
WNDCLASSEX wc;
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInst;
wc.hIcon = NULL;
wc.hCursor = (HCURSOR)LoadImage(NULL, MAKEINTRESOURCE((int)IDC_ARROW), IMAGE_CURSOR, 0, 0, LR_DEFAULTSIZE | LR_SHARED); // 游標
wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wc.lpszMenuName = NULL;
wc.lpszClassName = szClassName;
wc.hIconSm = NULL;
return (RegisterClassEx(&wc));
}
BOOL InitInstance(HINSTANCE hInst, int nCmdShow)
{
HWND hWnd;
hWnd = CreateWindow(szClassName,TEXT("Log"),
WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT,
200,200,NULL,NULL,hInst,NULL);
if (!hWnd) return FALSE;
ShowWindow(hWnd,nCmdShow);
UpdateWindow(hWnd);
return TRUE;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp)
{
int id;
HANDLE hFile, hFile2;
DWORD dwSize = 0L;
DWORD dwAccBytes;
LPTSTR lpszBuf, lpszBuf2;
LPTSTR lpszTemp, lpszTemp2;
HGLOBAL hMem, hMem2;
int nLen;
switch (msg) {
case WM_CREATE:
MyYmd(1);
// ReadFile
hFile = CreateFile(szLogFile,GENERIC_READ,0,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
if (hFile==INVALID_HANDLE_VALUE) {
TCHAR szSZ[256];
wsprintf(szSZ, TEXT("CreateFile Error %d.\n"), GetLastError());
MessageBox(hWnd, szSZ, TEXT("debug"), MB_OK);
}
dwSize = GetFileSize(hFile, NULL);
hMem = GlobalAlloc(GHND, dwSize + sizeof(TCHAR));
if (hMem==NULL) {
MessageBox(hWnd, TEXT("Fail memory"), TEXT("Err"), MB_ICONEXCLAMATION | MB_OK);
return -1;
}
lpszBuf = (LPTSTR)GlobalLock(hMem);
ReadFile(hFile, lpszBuf, dwSize, &dwAccBytes, NULL);
lpszBuf[dwAccBytes] = TEXT('\0');
lstrcpy(lpszTemp, lpszBuf);
lstrcat(lpszTemp, TEXT("\n"));
lstrcat(lpszTemp, szDate);
if (CloseHandle(hFile) == 0) {
MessageBox(hWnd, TEXT("Error CloseHandle"), TEXT("Error"), MB_OK);
return -1;
}
GlobalUnlock(hMem);
GlobalFree(hMem);
// WriteFile
hMem2 = GlobalAlloc(GHND, sizeof(TCHAR) * (lstrlen(lpszTemp) + 1));
lpszBuf2 = (LPTSTR)GlobalLock(hMem2);
lstrcpy(lpszBuf2, lpszTemp);
hFile2 = CreateFile(szLogFile, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile2==INVALID_HANDLE_VALUE) {
TCHAR szSZ[256];
wsprintf(szSZ, TEXT("CreateFile Error %d.\n"), GetLastError());
MessageBox(hWnd, szSZ, TEXT("debug"), MB_OK);
}
WriteFile(hFile2, lpszBuf2,(DWORD)lstrlen(lpszBuf2) * sizeof(TCHAR), &dwAccBytes, NULL);
if (CloseHandle(hFile2) == 0) {
MessageBox(hWnd, TEXT("Error CloseHandle"), TEXT("Error"), MB_OK);
return -1;
}
GlobalUnlock(hMem2);
GlobalFree(hMem2);
break;
case WM_CLOSE:
MyYmd(2);
// ReadFile
hFile = CreateFile(szLogFile,GENERIC_READ,0,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
if (hFile==INVALID_HANDLE_VALUE) {
TCHAR szSZ[256];
wsprintf(szSZ, TEXT("CreateFile Error %d.\n"), GetLastError());
MessageBox(hWnd, szSZ, TEXT("debug"), MB_OK);
}
dwSize = GetFileSize(hFile, NULL);
hMem = GlobalAlloc(GHND, dwSize + sizeof(TCHAR));
if (hMem==NULL) {
MessageBox(hWnd, TEXT("Fail memory"), TEXT("Err"), MB_ICONEXCLAMATION | MB_OK);
return -1;
}
lpszBuf = (LPTSTR)GlobalLock(hMem);
ReadFile(hFile, lpszBuf, dwSize, &dwAccBytes, NULL);
lpszBuf[dwAccBytes] = TEXT('\0');
if (lstrcpy(lpszTemp, lpszBuf)==NULL) { // <--- 錯在這一行
TCHAR szSZ[256];
wsprintf(szSZ, TEXT("lstrcpy Error %d.\n"), GetLastError());
MessageBox(hWnd, szSZ, TEXT("debug"), MB_OK);
}
lstrcat(lpszTemp, TEXT("\n"));
lstrcat(lpszTemp, szDate);
if (CloseHandle(hFile) == 0) {
MessageBox(hWnd, TEXT("Error CloseHandle"), TEXT("Error"), MB_OK);
return -1;
}
GlobalUnlock(hMem);
GlobalFree(hMem);
// WriteFile
hMem2 = GlobalAlloc(GHND, sizeof(TCHAR) * (lstrlen(lpszTemp) + 1));
lpszBuf2 = (LPTSTR)GlobalLock(hMem2);
lstrcpy(lpszBuf2, lpszTemp);
hFile2 = CreateFile(szLogFile, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile2==INVALID_HANDLE_VALUE) {
TCHAR szSZ[256];
wsprintf(szSZ, TEXT("CreateFile Error %d.\n"), GetLastError());
MessageBox(hWnd, szSZ, TEXT("debug"), MB_OK);
}
WriteFile(hFile2, lpszBuf2,(DWORD)lstrlen(lpszBuf2) * sizeof(TCHAR), &dwAccBytes, NULL);
if (CloseHandle(hFile2) == 0) {
MessageBox(hWnd, TEXT("Error CloseHandle"), TEXT("Error"), MB_OK);
return -1;
}
GlobalUnlock(hMem2);
GlobalFree(hMem2);
DestroyWindow(hWnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return (DefWindowProc(hWnd, msg, wp, lp));
}
return 0;
}
int MyYmd(int nOption)
{
SYSTEMTIME st;
TCHAR szBuf[64];
GetLocalTime(&st);
switch(nOption) {
case 1:
wsprintf((LPTSTR)szDate, TEXT("start: %d/%d/%d %2d:%2d:%2d"), st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
break;
case 2:
wsprintf((LPTSTR)szDate, TEXT("ended: %d/%d/%d %2d:%2d:%2d"), st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
break;
}
return 0;
}
