liujx2019

[QT] QMessagebox 文字可选可复制

摘要：对Qt5有效，对Qt4无效。https://stackoverflow.com/questions/32589776/qmessagebox-you-can-select-text-from messageBox.setTextInteractionFlags(Qt::TextSelectableB 阅读全文

posted @ 2020-05-09 14:17 liujx2019 阅读(886) 评论(0) 推荐(1) 编辑

VMware 虚拟机开机黑屏 Unable to connect to the MKS

摘要：到“计算机管理” > “服务” 里面启动 “VMware Authorization Service” 服务。阅读全文

posted @ 2020-05-08 17:17 liujx2019 阅读(1704) 评论(0) 推荐(0) 编辑

Use the Microsoft C++ toolset from the command line

摘要： Use the Microsoft C++ toolset from the command line 11/12/2019 13 minutes to read You can build C and C++ applications on the command line by using to 阅读全文

posted @ 2020-04-30 11:24 liujx2019 阅读(237) 评论(0) 推荐(0) 编辑

libeay32.dll 和 ssleay32.dll 在1.1.0之后没有了

摘要： The complete explanation is that 1.0.x and 1.1.x do not have the same naming conventions for the generated libraries. OpenSSL 1.1.x has moved into wha 阅读全文

posted @ 2020-04-30 10:44 liujx2019 阅读(1601) 评论(0) 推荐(0) 编辑

libeay32.dll 1.0.2j crash

摘要： https://github.com/BOINC/boinc/issues/2470 他们认为是CPU不同造成的另外一个可能的原因 Changes between 1.0.2j and 1.0.2k [26 Jan 2017] Truncated packet could crash via OO 阅读全文

posted @ 2020-04-29 14:59 liujx2019 阅读(177) 评论(0) 推荐(0) 编辑

VHD VHDX 区别

摘要： A Virtual hard disk is saved either with VHD or VHDX file extension. VHD is the older while VHDX is the newer file extension used by Microsoft Virtual 阅读全文

posted @ 2020-04-29 11:39 liujx2019 阅读(1617) 评论(0) 推荐(0) 编辑

char * 转 wchar *

摘要： if (ULARGE_INTEGER a; GetDiskFreeSpaceExA(Path, &a, nullptr, nullptr) != 0) if (ULARGE_INTEGER a; GetDiskFreeSpaceExW(fs::u8path(Path).c_str(), &a, nu 阅读全文

posted @ 2020-04-29 11:18 liujx2019 阅读(156) 评论(0) 推荐(0) 编辑

C++ 0xC0000094: Integer division by zero

摘要： C++ 0xC0000094: Integer division by zero 阅读全文

posted @ 2020-04-23 14:04 liujx2019 阅读(1475) 评论(0) 推荐(0) 编辑

Windows API 中 OVERLAPPED 结构体初始化

摘要：出处：https://github.com/microsoft/Windows-classic-samples/blob/1d363ff4bd17d8e20415b92e2ee989d615cc0d91/Samples/Hyper-V/Storage/cpp/MirrorVirtualDisk.cp 阅读全文

posted @ 2020-04-23 11:08 liujx2019 阅读(525) 评论(0) 推荐(0) 编辑

QString 转换成 wchar 的一个小陷阱

摘要： QString::toWCharArray(wchar_t * array) 其中 wchar_t * array 除了要分配内存之外，必须用 wmemset 初始化。环境是 Visual Studio 2015. QT官方文档确实注明了：Note: This function does not 阅读全文

posted @ 2020-04-23 10:19 liujx2019 阅读(1210) 评论(0) 推荐(0) 编辑