Hello ALL.
Возник вопрос: как перехватить вывод, производимый функцией OutputDebugString?
(из win32 приложения на той-же машине)
Заранее спасибо.
Здравствуйте, A.Ryzhov, Вы писали:
если не разберешся могу выслать целый проект
#include <windows.h>
#include <windowsx.h>
#include <stdio.h>
#include <stdlib.h>
#include "resource.h"
HWND hMainWnd, hEdit;
HINSTANCE hInst;
#define QUEUE_SIZE (256)
size_t iQueues, iQueuee;
char *szQueue[QUEUE_SIZE];
LRESULT CALLBACK WindowProc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp);
void SetPlacement(HWND hWnd, const char *s);
void GetPlacement(HWND hWnd, char *ach);
HWND OpenWindow()
{
WNDCLASS wClass;
HWND hWnd;
wClass.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
wClass.lpfnWndProc = WindowProc;
wClass.cbClsExtra = 0;
wClass.cbWndExtra = 0;
wClass.hInstance = hInst;
wClass.hIcon = NULL; //LoadIcon(NULL, IDI_APPLICATION);
wClass.hCursor = LoadCursor(NULL, IDC_ARROW);
wClass.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
wClass.lpszMenuName = "MainMenu";
wClass.lpszClassName = "DBWin32";
RegisterClass(&wClass);
hWnd = CreateWindowEx(WS_EX_TOPMOST, //WS_EX_PALETTEWINDOW,
"DBWin32",
"DBWin32", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
NULL, (HMENU)NULL, hInst, NULL);
return hWnd;
}
void _AddToEdit(char *txt)
{
int iLength;
char szLine[520], *p;
if( (iLength = Edit_GetLineCount(hEdit)) > (512) )
{
int ii = iLength - 512;
ii = Edit_LineIndex(hEdit, ii);
Edit_SetSel(hEdit, 0, ii);
Edit_ReplaceSel(hEdit, "");
}
iLength = Edit_GetTextLength(hEdit);
Edit_SetSel(hEdit, iLength, iLength);
for(p = szLine; *txt; )
if( *txt == '\n' || (p - szLine) > 512 )
{
*p ++ = '\r';
*p ++ = '\n';
*p = 0;
Edit_ReplaceSel(hEdit, szLine);
p = szLine;
txt ++ ;
}
else
*p ++ = *txt ++;
*p = 0;
if( *szLine )
Edit_ReplaceSel(hEdit, szLine);
}
void AddToEdit(char *txt)
{
szQueue[iQueuee++] = strdup(txt);
iQueuee &= QUEUE_SIZE-1;
}
void FillToEdit()
{
while( iQueues != iQueuee )
{
_AddToEdit(szQueue[iQueues]);
free(szQueue[iQueues]);
szQueue[iQueues] = NULL;
iQueues = (iQueues + 1) & (QUEUE_SIZE-1);
}
}
int DoEventsWindow(HWND hDlg)
{
MSG msg;
while( PeekMessage(&msg, 0, 0, 0, PM_NOREMOVE) )
{
GetMessage(&msg, 0, 0, 0);
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return 0;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, LPSTR lpCmdLine, int nCmdShow)
{
HANDLE AckEvent, ReadyEvent;
HANDLE SharedFile, SharedMem;
char *buffer;
DWORD ret, LastPid;
DWORD *pThisPid;
BOOL DidCR;
char txt[256];
MSG msg;
SECURITY_ATTRIBUTES sa;
SECURITY_DESCRIPTOR sd;
hInst = hInstance;
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.bInheritHandle = TRUE;
sa.lpSecurityDescriptor = &sd;
if(!InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION))
{
sprintf(txt,"Unable to InitializeSecurityDescriptor, err == %d\n", GetLastError());
MessageBox(NULL, txt, "DBWin32", MB_OK | MB_ICONSTOP);
return 0;
}
if(!SetSecurityDescriptorDacl(&sd, TRUE, (PACL)NULL, FALSE))
{
sprintf(txt,"Unable to SetSecurityDescriptorDacl, err == %d\n", GetLastError());
MessageBox(NULL, txt, "DBWin32", MB_OK | MB_ICONSTOP);
return 0;
}
AckEvent = CreateEvent(&sa, FALSE, FALSE, "DBWIN_BUFFER_READY");
if (!AckEvent)
{
sprintf(txt, "Unable to create synchronization object, err == %d\n", GetLastError());
MessageBox(NULL, txt, "DBWin32", MB_OK | MB_ICONSTOP);
return 0;
}
if (GetLastError() == ERROR_ALREADY_EXISTS)
{
sprintf(txt, "Already running\n");
MessageBox(NULL, txt, "DBWin32", MB_OK | MB_ICONSTOP);
return 0;
}
ReadyEvent = CreateEvent(&sa, FALSE, FALSE, "DBWIN_DATA_READY");
if (!ReadyEvent)
{
sprintf(txt,"Unable to create synchronization object, err == %d\n", GetLastError());
MessageBox(NULL, txt, "DBWin32", MB_OK | MB_ICONSTOP);
return 0;
}
SharedFile = CreateFileMapping( (HANDLE)-1, &sa, PAGE_READWRITE, 0, 4096, "DBWIN_BUFFER");
if (!SharedFile)
{
sprintf(txt, "Unable to create file mapping object, err == %d\n", GetLastError());
MessageBox(NULL, txt, "DBWin32", MB_OK | MB_ICONSTOP);
return 0;
}
SharedMem = MapViewOfFile(SharedFile, FILE_MAP_READ, 0, 0, 512);
if (!SharedMem)
{
sprintf(txt, "Unable to map shared memory, err == %d\n", GetLastError());
MessageBox(NULL, txt, "DBWin32", MB_OK | MB_ICONSTOP);
return 0;
}
hMainWnd = OpenWindow();
GetPrivateProfileString("Init", "Window", "", txt, 256, "DBWin32.ini");
SetPlacement(hMainWnd, txt);
UpdateWindow(hMainWnd);
buffer = (LPSTR)SharedMem + sizeof(DWORD);
pThisPid = (DWORD*)SharedMem;
LastPid = 0xffffffff;
DidCR = TRUE;
SetEvent(AckEvent);
for (;;)
{
ret = MsgWaitForMultipleObjects(1, &ReadyEvent, FALSE, INFINITE, QS_ALLINPUT);
if( ret == (WAIT_OBJECT_0) ) //
{
if (LastPid != *pThisPid)
{
LastPid = *pThisPid;
sprintf(txt, "---[%3u]------------------------------\r\n", LastPid);
AddToEdit(txt);
}
AddToEdit(buffer);
SetEvent(AckEvent);
//PostMessage(hMainWnd, WM_NULL, 0, 0);
}
else if( ret == (WAIT_OBJECT_0 + 1) )
{
while( PeekMessage(&msg, 0, 0, 0, PM_NOREMOVE) )
{
GetMessage(&msg, 0, 0, 0);
if( msg.message == WM_QUIT )
return 0;
TranslateMessage(&msg);
DispatchMessage(&msg);
}
//FillToEdit();
}
}
return 0;
}
LRESULT CALLBACK WindowProc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp)
{
LRESULT lRet = 0;
switch ( msg ) {
case WM_DESTROY:
{
char txt[256];
GetPlacement(hWnd, txt);
WritePrivateProfileString("Init", "Window", txt, "DBWin32.ini");
KillTimer(hWnd, 1);
PostQuitMessage(0);
}
break;
case WM_CREATE:
hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, "EDIT", "",
WS_CHILD|WS_VISIBLE|WS_HSCROLL|WS_VSCROLL|ES_MULTILINE,
0, 0, 0, 0, hWnd, (HMENU)100, hInst, NULL);
SetWindowFont(hEdit, GetStockFont(SYSTEM_FIXED_FONT), TRUE);
SetTimer(hWnd, 1, 100, NULL);
break;
case WM_SIZE:
MoveWindow(hEdit, 0, 0, LOWORD(lp), HIWORD(lp), TRUE);
break;
case WM_SETFOCUS:
SetFocus(hEdit);
break;
case WM_TIMER:
FillToEdit();
break;
case WM_COMMAND:
switch( wp ) {
case CM_EXIT:
PostMessage(hWnd, WM_CLOSE, 0, 0);
break;
case CM_CLEAR:
SetWindowText(hEdit, "");
break;
}
break;
default:
lRet = DefWindowProc(hWnd, msg, wp, lp);
}
return lRet;
}
void GetPlacement(HWND hWnd, char *ach)
{
WINDOWPLACEMENT wpl;
memset(ach, 0, sizeof(ach));
wpl.length = sizeof(wpl);
GetWindowPlacement(hWnd, &wpl);
wsprintf(ach, "%d %d %d %d %d %d %d %d %d %d %d ",
10,
wpl.flags,
wpl.showCmd,
wpl.ptMinPosition.x,
wpl.ptMinPosition.y,
wpl.ptMaxPosition.x,
wpl.ptMaxPosition.y,
wpl.rcNormalPosition.left,
wpl.rcNormalPosition.top,
wpl.rcNormalPosition.right,
wpl.rcNormalPosition.bottom);
}
static int IntFromString(LPSTR * lplpsz)
{
LPSTR lpsz = *lplpsz;
int i = 0;
char ch;
BOOL fNeg;
while (*lpsz == ' ')
lpsz++;
fNeg = FALSE;
while ( (ch = *lpsz++) != 0 )
{
if (ch == '-')
{
fNeg = !fNeg;
continue;
}
if (ch < '0' || ch > '9')
break;
i = (i * 10) + (ch - '0');
}
*lplpsz = lpsz;
return (fNeg ? -i : i);
}
void SetPlacement(HWND hWnd, const char *s)
{
WINDOWPLACEMENT wpl;
char *ach = (char*)s;
LPSTR lpsz;
int cch = strlen(ach);
lpsz = ach;
if (cch == 0 || IntFromString(&lpsz) != 10)
{
// Default pozicija
::ShowWindow(hWnd, SW_SHOWNORMAL);
}
else
{
wpl.length = sizeof(wpl);
wpl.flags = (UINT)IntFromString(&lpsz);
wpl.flags &= ~WPF_SETMINPOSITION;
wpl.showCmd = (UINT)IntFromString(&lpsz);
wpl.ptMinPosition.x = IntFromString(&lpsz);
wpl.ptMinPosition.y = IntFromString(&lpsz);
wpl.ptMaxPosition.x = IntFromString(&lpsz);
wpl.ptMaxPosition.y = IntFromString(&lpsz);
wpl.rcNormalPosition.left = IntFromString(&lpsz);
wpl.rcNormalPosition.top = IntFromString(&lpsz);
wpl.rcNormalPosition.right = IntFromString(&lpsz);
wpl.rcNormalPosition.bottom = IntFromString(&lpsz);
if( GetWindowStyle(hWnd) & WS_CHILD )
{
wpl.showCmd = SW_SHOW;
}
SetWindowPlacement(hWnd, &wpl);
}
}
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