winapi

问题 I have a QFile , but I need to call some Win32 functions on it that accept only a HANDLE . Is there a way to retrieve the underlying HANDLE of the QFile ? 回答1: I found a way that uses _get_osfhandle() (available in MinGW and VS): QFile file; .... HANDLE handle = (HANDLE) _get_osfhandle(file.handle()). 来源： https://stackoverflow.com/questions/19707263/get-handle-from-qfile

问题 I'm trying to create a Medium or Low integrity process from a elevated process. I know there are other questions like this but they mostly focus on the workarounds like using Explorer or the Task Scheduler and I want to stick with CreateRestrictedToken() + CreateProcessAsUser() . I assume it must be possible to do this somehow since I believe UAC does it when you log in but I have not been able to get everything in the token to look like the normal UAC Medium IL token. You can get 80% there

问题 I'm trying to create a Medium or Low integrity process from a elevated process. I know there are other questions like this but they mostly focus on the workarounds like using Explorer or the Task Scheduler and I want to stick with CreateRestrictedToken() + CreateProcessAsUser() . I assume it must be possible to do this somehow since I believe UAC does it when you log in but I have not been able to get everything in the token to look like the normal UAC Medium IL token. You can get 80% there

问题 I'm developing a C++ console application that has to manage files on Windows OS. I need to obtain a 'list' of file names which have a specific extension. I've found a lot of solutions, the most suggested one is the following one: HANDLE hFind; WIN32_FIND_DATA data; hFind = FindFirstFile("C:\\PWS\\*.sda", &data); if (hFind != INVALID_HANDLE_VALUE) { do { cout << data.cFileName << endl; } while (FindNextFile(hFind, &data)); FindClose(hFind); } Suppose I have these files inside the C:\\PWS

问题 I'm developing a C++ console application that has to manage files on Windows OS. I need to obtain a 'list' of file names which have a specific extension. I've found a lot of solutions, the most suggested one is the following one: HANDLE hFind; WIN32_FIND_DATA data; hFind = FindFirstFile("C:\\PWS\\*.sda", &data); if (hFind != INVALID_HANDLE_VALUE) { do { cout << data.cFileName << endl; } while (FindNextFile(hFind, &data)); FindClose(hFind); } Suppose I have these files inside the C:\\PWS

问题 With dlopen you can provide NULL as the library name and get a handle that allows you to find a symbol in any of the loaded libraries: If filename is a NULL pointer, then the returned handle is for the main program. When given to dlsym(), this handle causes a search for a symbol in the main program, followed by all shared libraries loaded at program startup, and then all shared libraries loaded by dlopen() with the flag RTLD_GLOBAL. Can you do the same with GetProcAddress ? I want to search

问题 With dlopen you can provide NULL as the library name and get a handle that allows you to find a symbol in any of the loaded libraries: If filename is a NULL pointer, then the returned handle is for the main program. When given to dlsym(), this handle causes a search for a symbol in the main program, followed by all shared libraries loaded at program startup, and then all shared libraries loaded by dlopen() with the flag RTLD_GLOBAL. Can you do the same with GetProcAddress ? I want to search

问题 Is it possible to silently catch errors popup like "the procedure entry point xxx could not be located int the dynamic link library xxx" when calling LoadLibrary() ? 回答1: You can suppress the error popups by calling SetErrorMode(): // GetErrorMode() only exists on Vista and higher, // call SetErrorMode() twice to achieve the same effect. UINT oldErrorMode = SetErrorMode(SEM_FAILCRITICALERRORS); SetErrorMode(oldErrorMode | SEM_FAILCRITICALERRORS); HMODULE library = LoadLibrary("YourLibrary.dll

问题 Is it possible to silently catch errors popup like "the procedure entry point xxx could not be located int the dynamic link library xxx" when calling LoadLibrary() ? 回答1: You can suppress the error popups by calling SetErrorMode(): // GetErrorMode() only exists on Vista and higher, // call SetErrorMode() twice to achieve the same effect. UINT oldErrorMode = SetErrorMode(SEM_FAILCRITICALERRORS); SetErrorMode(oldErrorMode | SEM_FAILCRITICALERRORS); HMODULE library = LoadLibrary("YourLibrary.dll

问题 With this code: internal static List<DetectedWindow> EnumerateWindows() { var shellWindow = GetShellWindow(); var windows = new List<DetectedWindow>(); EnumWindows(delegate (IntPtr handle, int lParam) { if (handle == shellWindow) return true; if (!IsWindowVisible(handle)) return true; if (IsIconic(handle)) return true; var length = GetWindowTextLength(handle); if (length == 0) return true; var builder = new StringBuilder(length); GetWindowText(handle, builder, length + 1); GetWindowRect