x

Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

Handling game crashing when using external DLL

Hi all,

I'm working on a project which involves using OpenCV to record in-game footage without any external screen recorder. I have it set up so that a timer calls a function from the DLL at the desired framerate (one call per frame). That function will then take care of capturing the screen and outputting it to a video file. So far everything works fine, however in an effort to improve the performance I've started messing around with multithreading using FAsyncTasks, and if I call the DLL function too often, OpenCV throws me the following access violation error. I've tested it on several machines and figured out that the slower the CPU the lower the maximum call frequency is.


I kinda have two questions at this point,

Am I right to think that my program cannot run faster without modification to the DLL?

And, Is there way to stop the game from crashing whenever that error happens?


     Unhandled exception at 0x00007FF99C11928A (opencv_world341.dll) in UE4Editor.exe: 0xC0000005: Access violation writing location 0x00000279FD83D000.
     
     Exception thrown at 0x00007FF99C11928A (opencv_world341.dll) in UE4Editor.exe: 0xC0000005: Access violation writing location 0x00000279FD83D000.
Product Version: UE 4.21
Tags:
more ▼

asked May 28 '19 at 01:55 PM in C++ Programming

avatar image

Gamji
8 4 5 11

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

0 answers: sort voted first
Be the first one to answer this question
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question