Databases
StackOverflow2013
Postsdbo
POUsing detours for hooking writing text in notepad
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POUsing detours for hooking writing text in notepad
    primarykey
    data
    text
    <p>I'm trying to use detours to hook text output for example in notepad.</p> <p>I wrote the following code. I will not put here all code, but the most significant parts.</p> <p>DLL part:</p> <pre><code>DLLEXPORT LRESULT CALLBACK CBTProc(int nCode, WPARAM wParam, LPARAM lParam) { if (nCode &lt; 0) { return CallNextHookEx(0, nCode, wParam, lParam); } if (nCode == HCBT_ACTIVATE) { HWND hWnd = (HWND)wParam; TCHAR szTemp[255]; GetWindowText(hWnd, szTemp, 255); DetourTransactionBegin(); DetourUpdateThread(hWnd); DetourAttach(&amp;(PVOID&amp;)Real_DrawText, Mine_DrawText); DetourTransactionCommit(); DetourTransactionBegin(); DetourUpdateThread(hWnd); DetourAttach(&amp;(PVOID&amp;)Real_DrawTextEx, Mine_DrawTextEx); DetourTransactionCommit(); DetourTransactionBegin(); DetourUpdateThread(hWnd); DetourAttach(&amp;(PVOID&amp;)Real_TextOut, Mine_TextOut); DetourTransactionCommit(); DetourTransactionBegin(); DetourUpdateThread(hWnd); DetourAttach(&amp;(PVOID&amp;)Real_ExtTextOut, Mine_ExtTextOut); DetourTransactionCommit(); } return 0; } </code></pre> <p>Client part:</p> <pre><code>int main(int argc, char* argv[]) { HOOKPROC hkprcSysMsg; static HINSTANCE hinstDLL; static HHOOK hhookSysMsg; hinstDLL = LoadLibrary(TEXT("dllsample.dll")); //cout &lt;&lt; (hinstDLL == NULL); hkprcSysMsg = (HOOKPROC)GetProcAddress(hinstDLL, "_CBTProc@12"); DWORD dw = GetLastError(); //cout &lt;&lt; (hkprcSysMsg == NULL); //cout &lt;&lt; dw; hhookSysMsg = SetWindowsHookEx( WH_CBT, hkprcSysMsg, hinstDLL, 0); //std::cout &lt;&lt; (hhookSysMsg == NULL); int i; std::cin &gt;&gt; i; } </code></pre> <p>The problem is that all 4 functions which draw text are not hooked. What do I do wrong. I'v started studing detours and didn't find answer for my question in docs.</p> <p>If other parts of code are required, I'll put them here later.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. UStimlendus
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload