wxt | Drupal 9 variant of the Web Experience Toolkit | User Interface library

From wxCopyFile() documentation it appears that both its arguments must be file names; however, your second argument is a directory. This results in the function trying to create a file where a directory with the same name already exists, resulting into the error.

Therefore, you need to provide a full path including the file name instead of just the directory name for the second argument too. wxCopyFile() seems to mimic CopyFile() which it uses on MSW. It can be argued that their behaviour is not the most convenient one but that would be beyond the point of this question.

You're running into a stack overflow (how thematic!) due to an infinite recursion: your wxEVT_CLOSE handler calls Close() resulting in another wxEVT_CLOSE being generated and so on. Simply remove the handler completely if you have nothing to do in it to fix the problem.

Also, when encountering a reproducible crash, the first thing to do is to build your program with debug information, run it under debugger and look at the stack at the moment of the crash -- in 90% cases this will provide you with the answer, and this would definitely have been the case here when you would have seen the endlessly repeating calls to your OnClose() in the stack.

Can you use the analytic integral under a Gaussian function?

It is controlled by the front/back status of the grid lines. Note that when you set this to "front" it has the side effect of enabling the x and y grid lines by default, so you probably want to turn them off again:

Multiple things are happening here

1. Initially I thought that part of what you are seeing is evidence that the compositing operation of the graphics rendering in whichever terminal you are using is non-transitive. However I think that most or all of the effect can be explained without this.

Here is a suggestion how I would do it. It's maybe not obvious and looks maybe a bit complicated, but it is a gnuplot-only solution. Since I do not run Linux, I do not have grep, that's why I define myFilter() in gnuplot itself which is platform independent. Everytime this filter gives a hit, the counter t will be increased by one which has the advantage that the data can contain a interlaced mix of countries. I assume that's what grep would allow as well. The only assumption here is that the week numbers are in (ascending) order, they would not be sorted.

I guess here it is not necessary to have the x-axis as timeformat. The situation would be different if there are missing calendar week(s) and you want to keep an according gap for them. With myOffset=0 and myEvery=2 you set how many x-tic labels you want to have displayed. There is certainly room for improvement and I'm sure there are other solutions... so, just as a starting point...

Code:

One possible suggestion: use screen coordinates for the key and show the title only for one graph. Something like this:

Code: (edit: simply unset key after the first plot)

Here's a full example (at least for windows) of using vlcpp to draw to a wxWidgets window. It's based on the libvlc example except I changed it to use vlcpp and use some slightly more modern wxWidgets features.

There are many issues here. To answer the main question of why this hangs your program, in the OnClose method you call Destroy() and then delete the frame (which includes m_text_time). Meanwhile, your thread is sleeping and when it wakes up, it will try change the label for m_text_time which no longer exists. I'm not sure why this causes deadlock instead of a segfault, but this is the problem. So you can make this work poorly and problematically by simply changing the order to: