winapi

问题 I'm displaying RTF document in RichTextBox ("upgraded" to RichEdit50W ). Keywords in the document are linked to a webpage using a syntax: {\field{\*\fldinst{HYPERLINK ""https://www.example.com/"" }}{\fldrslt{\cf1 keyword\cf0 }}} I do not want to underline the keywords. Until Windows 10 version 1803 (and in all previous versions of Windows, including XP, Vista, 8), whenever a color was set on the anchor (note the \cf1 ), the anchor was not underlined. But this no longer works in Windows 10

问题 I'm writing Win32-API C code that needs to wait for new TCP connections and on the other side can be closed at any time by any other process/thread. Therefore, I need to somehow WaitForSingleObject on the stop event and wait for connections using WSAAccept simultaneously. I tried WaitForMultipleObjects on both socket and handle but new connection won't trigger the function (also WaitForSingleObject on the socket won't be triggered on a new connection). Any idea? 回答1: You need to use

问题 My application does not always require "admin" privileges and most of the time would run as the current user. Is there any way, I can escalate privs by throwing up a UAC at runtime after my program is already running? This will only happen as and when I need privs. Rather than having to start with high privs. I know the "runas" technique, manifest file etc. but all these are before the process is created and not at runtime, on-demand 回答1: Congratulations, that's exactly how UAC is designed to

问题 I'm trying to play a simple sineous waveform using the Windows Audio Session API (WASAPI) in exclusive mode, but encountering sound glitches no matter what I do. I've been using the MSDN Exclusive-Mode Streams example as a reference point, and here's how the slightly adapted code currently looks like. Setup code: -- <variable declarations, incl. "HRESULT hr; BYTE *pData;" > -- // also, hr is checked for errors every step of the way hr = CoCreateInstance( CLSID_MMDeviceEnumerator, NULL, CLSCTX

问题 OS: Win7x64 (2008,2008r2). Lang: Delphi Xe2. How to receive a full path (and file name) to the image "user account picture"? How to set new picture? Example on delphi plz. Need: ...function GetCurrentUserPicture:string; ...function GetUserPicture(UserName:String):string; ...function SetUserNewPicture(UserName, ImageFileName:String):bool; 回答1: There is an undocumented function in shell32.dll. On Windows XP its ordinal is 233, on Windows Vista and 7 its ordinal is 261. Its function prototype

问题 I tried to use while , but the effect is not very good. Is there any way to do it? bool found = false; uintptr_t memaddr = 0; int n = 0; while (!found && n < 10) { n += 1; memaddr = (uintptr_t)VirtualAlloc(0, 4, MEM_COMMIT, PAGE_EXECUTE_READWRITE); int g = memaddr / 1024 / 1024 / 1024; cout << "memaddr: " << memaddr << endl; if (g >= 2 && g <= 4) { found = true; } } cout << hex << memaddr << endl; 回答1: Use the lpAddress parameter of VirtualAlloc #include "pch.h" #include <iostream> #include

问题 I tried to use while , but the effect is not very good. Is there any way to do it? bool found = false; uintptr_t memaddr = 0; int n = 0; while (!found && n < 10) { n += 1; memaddr = (uintptr_t)VirtualAlloc(0, 4, MEM_COMMIT, PAGE_EXECUTE_READWRITE); int g = memaddr / 1024 / 1024 / 1024; cout << "memaddr: " << memaddr << endl; if (g >= 2 && g <= 4) { found = true; } } cout << hex << memaddr << endl; 回答1: Use the lpAddress parameter of VirtualAlloc #include "pch.h" #include <iostream> #include

问题 Here's the code below, VS said that on line 109 ( MoveTo(hdc, x, y); "MoveTo" is undefined . Can someone explain me what's wrong ? This is a win32api application. // Win32Project.cpp : Defines the entry point for the application. // #include "stdafx.h" #include "Win32Project4.h" #include <windows.h> #include <stdio.h> #include <string.h> #include <math.h> #include <stdlib.h> LRESULT CALLBACK ChildWndProc(HWND, UINT, WPARAM, LPARAM); LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); int

问题 The CreateFile function is useful for opening files or devices for read/write access, providing a handle. The third parameter, dwShareMode , specifies if the file/device can later be accessed by others. An example, with files: void* pFileHandle1 = ::CreateFileA("C:\\test.txt", GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0); DWORD lastError = GetLastError(); // 0, ERROR_SUCCESS void* pFileHandle2 = ::CreateFileA("C:\\test.txt", GENERIC_READ|GENERIC_WRITE,

问题 I am searching for the fastest possible way in C to determine if any key on the keyboard has been pressed. I am not looking for how to determine if a specific key is pressed (in that case, GetAsyncKeyState() would work). Also, it needs to work in the background, so without the program window having focus (the program will be running in the background). EDIT: The program will react on every keypress with a sound output. I want it to output a sound everytime I type something (like in Word and