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copied!<ol> <li><p>Toplevel window</p></li> <li><p>WS_EX_APPWINDOW -> taskbar, no matter the other styles!</p></li> <li><p>OWNER must be NULL (GetWindow(window, GW_OWNER))</p></li> <li><p>no: WS_EX_NOACTIVATE or WS_EX_TOOLWINDOW:</p></li> </ol> <p>order is important. </p> <p>second question: in windows xp/vista it was possible to get into the process of the taskbar and get all window ID´s:</p> <pre><code>void EnumTasklistWindows() { int b2 = 0; TBBUTTON tbButton; DWORD dwProcessId = 0, dwThreadId = 0; HWND hDesktop =::GetDesktopWindow(); HWND hTray =::FindWindowEx(hDesktop, 0, ("Shell_TrayWnd"), NULL); HWND hReBar =::FindWindowEx(hTray, 0, ("ReBarWindow32"), NULL); HWND hTask =::FindWindowEx(hReBar, 0, ("MSTaskSwWClass"), NULL); HWND hToolbar =::FindWindowEx(hTask, 0, ("ToolbarWindow32"), NULL); LRESULT count =::SendMessage(hToolbar, TB_BUTTONCOUNT, 0, 0); dwThreadId = GetWindowThreadProcessId(hToolbar, &dwProcessId); shared_ptr<void> hProcess (OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwProcessId), CloseHandle); if (NULL == hProcess.get()) { return; } memset(&tbButton, 0, sizeof(TBBUTTON)); for (int i = 0; i < count; i++) { memset(&tbButton, 0, sizeof(TBBUTTON)); shared_ptr<void> lpRemoteBuffer ( VirtualAllocEx(hProcess.get(), NULL, sizeof(TBBUTTON), MEM_COMMIT, PAGE_READWRITE), bind<BOOL>(VirtualFreeEx, hProcess.get(), _1, 0, MEM_RELEASE)); if (NULL == lpRemoteBuffer.get()) { return; } SendMessage(hToolbar, TB_GETBUTTON, i, (LPARAM) lpRemoteBuffer.get()); b2 = ReadProcessMemory(hProcess.get(), lpRemoteBuffer.get(), (LPVOID) & tbButton, sizeof(TBBUTTON), NULL); if (0 == b2) { continue; } BYTE localBuffer[0x1000]; BYTE *pLocalBuffer = localBuffer; DWORD_PTR ipLocalBuffer = (DWORD_PTR) pLocalBuffer; pLocalBuffer = localBuffer; ipLocalBuffer = (DWORD_PTR) pLocalBuffer; DWORD_PTR lpRemoteData = (DWORD_PTR) tbButton.dwData; ReadProcessMemory(hProcess.get(), (LPVOID) lpRemoteData, (LPVOID) ipLocalBuffer, sizeof(DWORD_PTR), NULL); HWND windowHandle; memcpy(&windowHandle, (void *) ipLocalBuffer, 4); if (windowHandle != NULL) { trace ("adding button: %x\n", windowHandle); } } } </code></pre> <p>this not possible with windows 7 anymore. so you need to loop over all toplevel windows.</p>

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