博博

Thank you~（*＾-＾*）I can now compile it normally

My project has the same problem as yours, and the simplest example cannot compile normally. But the official examples can be compiled and run normally, which is very strange.

``` 1>------ 已启动生成: 项目: QtServiceTest_0, 配置: Debug x64 ------ 1>Reading Qt configuration (C:/Qt/5.15.1/msvc2019_64/bin/qmake) 1>main.obj : error LNK2019: 无法解析的外部符号 "public: static bool __cdecl el::base::utils::OS::termSupportsColor(void)" (?termSupportsColor@OS@utils@base@el@@SA_NXZ)，函数 "public: __cdecl el::LogBuilder::LogBuilder(void)" (??0LogBuilder@el@@QEAA@XZ) 中引用了该符号 1>main.obj...

``` #include "easylogging++.h" INITIALIZE_EASYLOGGINGPP int main(int argc, char* argv[]) { START_EASYLOGGINGPP(argc, argv); LOG(INFO)

My day I find the reason of the problem, because I put EasyLogging source code in the other path (not included in the project), and then through VS "add include...

The above question may sound a little crazy... However, in many GUIs, when a child control is hidden, whether the parent control is hidden or not does not affect the...

There is another solution to start with: maintain a hidden plane under the "stdncplane". When an "ncplane" is hidden, the parent window executing ncplane_move_family_top does not affect the actively hidden...