Search Results

Search found 3 results on 1 pages for 'tfinniga'.

Page 1/1 | 1 

• Find which MFC child window would receive a mouse click

  - by tfinniga

  So, I have a plugin to an MFC program. I'm using a mouse event hook (from SetWindowsHookEx) to capture clicks. The host application can have any number of (possibly overlapping) child windows open, but I only want to intercept clicks in a particular child window. Is there a way to figure out in the hook proc which of the child windows would process the click? I guess it's something like enumerate all child windows, looking at Z-order, but I'm very unfamiliar with the MFC/Win32 libraries, and I'm not able to find any good discussion about how to enumerate all children and calculate which is topmost.

  Read the article

• Detecting the axis of rotation from a pointcloud

  - by tfinniga

  I'm trying to auto-detect the axis of rotation on a 3d pointcloud. In other words, if I took a small 3d pointcloud, chose a single axis of rotation, and make several copies of the points at different rotation angles, then I get a larger pointcloud. The input to my algorithm is the larger pointcloud, and the desired output is the single axis of symmetry. And eventually I'm going to compute the correspondences between points that are rotations of each other. The size of the larger pointcloud is on the order of 100K points, and the number of rotational copies made is unknown. The rotation angles in my case have constant deltas, but don't necessarily span 360 degrees. For example, I might have 0, 20, 40, 60. Or I might have 0, 90, 180, 270. But I won't have 0, 13, 78, 212 (or if I do, I don't care to detect it). This seems like a computer vision problem, but I'm having trouble figuring out how to precisely find the axis. The input will generally be very clean, close to float accuracy.

  Read the article

• Getting information about where c++ exceptions are thrown inside of catch block?

  - by tfinniga

  I've got a c++ app that wraps large parts of code in try blocks. When I catch exceptions I can return the user to a stable state, which is nice. But I'm not longer receiving crash dumps. I'd really like to figure out where in the code the exception is taking place, so I can log it and fix it. Being able to get a dump without halting the application would be ideal, but I'm not sure that's possible. Is there some way I can figure out where the exception was thrown from within the catch block? If it's useful, I'm using native msvc++ on windows xp and higher. My plan is to simply log the crashes to a file on the various users' machines, and then upload the crashlogs once they get to a certain size.

  Read the article

1