Ctypes setwindowshook python

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Linked 1. Related Hot Network Questions. Question feed. Stack Overflow works best with JavaScript enabled. Accept all cookies Customize settings. The following are 30 code examples for showing how to use ctypes. These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

More from ctypes. Popen sys. PIPE threading. Thread struct. ArgumentParser ctypes. Python ctypes. Structure Examples The following are 30 code examples for showing how to use ctypes. SystemError exception being raised, the interpreter crashing or the interpreter hanging. And the Python code:. The allocate function creates a new! NumPy array and puts it in a list so that we keep a reference to it after the callback function returns.

Expected output:. Here's another idea for an Allocator class to manage this kind of thing. In addition to dimension and shape, this allocator function takes a char indicating what type of array to allocate.

You can get these typecodes from the ndarrayobject. None of the allocators presented above are thread safe. If you have multiple Python threads calling the C code that invokes your callbacks, you will have to do something a bit smarter.

Suppose you have a C function like the following, which operates on a pointer-to-pointers data structure.

You can create the necessary structure from an existing 2-D! NumPy array using the following code:. But, be warned that NumPy recarrays and corresponding structs in C may not be congruent. Also structs are not standardized across platforms In other words, '' be aware of padding issues! Copy all three files to the same directory. SciPy Cookbook latest. Ensure that you have at least ctypes version 1. SharedLibrary 'foo', ['foo.