OK, sorry, I overlooked it…
Note that you can also build everything in debug mode an try to figure out what’s happening…
Sry, I was not allowed to reply due to being a new user. Needed to wait 23h and I did some more tests since then.
The last link looks exactly what I was looking for, thanks! I implemented it, but it still is not working correctly. In the meantime I checked out the latest 5.34 branch, which is is a lot newer than the last tagged version I could find (5.32). Now at least I got my env vars and ROOTSYS is being used.
I had a bit trouble with the new lz4 support, because the defines for c99 check are wrong and thus it fails to compile with vs2008, but I could fix it.
I use both the debug and release builds for testing. Current state is, that in debug it crashes when doing gTws = &fWindows[wid] in TGWin32::SetDoubleBuffer, because wid has default debug (0xcdcdcdcd) value. I use gVirtualX->AddWindow((ULong_t)wnd, width, height) as described in the link and it also returns this value for the id. In release mode it doesn’t crash and the id value is zero, but I don’t get an image either.
I will try RelWithDebInfo and dig some further. Thanks for you help so far.
I was able to pinpoint the issue. Long story short, don’t use the tagged version from Github as I did at the beginning. Use the latest trunk, or 5.34 when it is tagged (that part I already wrote above).
The second problem is, that you can not use different threads for
TApplication *gMyRootApp = new TApplication("My ROOT Application", 0, 0);
and
int wid = gVirtualX->AddWindow((ULong_t)hWnd, width, height);
If you do, you will get an invalid window ID. Both have to be executed in the same thread, even though there is a mechanism for thread handling in AddWindow. This probably is a bug. I am using the same thread now and got it working. Even image saving works.
1 Like