The wrapper for that function made no attempt to ensure that the buffer
would stay alive, and as a result use-after-free could easily occur. The
fix is to require that the buffer be stuffed in an `Arc` box and to
teach Core Graphics how to release the `Arc` when it's done with it.
Add support for iOS targets
Only include `CGEvent` and `CGDisplay` on macOS, and link against `CoreGraphics` specifically, not the macOS umbrella framework.
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Remove warnings for zero-sized structs
This change removes a bunch of warnings from the crate.
The only remaining warnings are due to the bitflags macro usage.
This will help fixservo/core-text-rs#62 when it upgrades to `core-graphics = 0.9`.
@jdm
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Adds an additional display function + bumps core-foundation dependency version
This is a small pull request, basically it adds the following things:
1. Adds a missing `CGDisplayCreateImage()` function, so that now the user has all required functions to capture static images (it was already implemented for window capturing and now the display capturing is also possible).
2. Adds a couple functions to `CGRect`.
3. Updates the version for `core-foundation` from `0.3` to `0.4`. I'm not sure if using `0.3` makes sense if we can use `0.4`. For me personally it was required to change it as my project depends on several crates, including the latest `core-foundation` version, so when I have both `core-graphics` and `core-foundation` in my dependencies, `core-foundation` has been compiled twice (once for `0.4` which is the new version and once for the old `0.3` which has been downloaded and compiled as one of the `core-graphics` dependencies). So basically the people who use the both `core-graphics` and `core-foundation` (the last versions) would encounter the same problems (`core-foundation` is compiled twice and it may cause compile time errors like it was in my case). What are your thoughts on these?
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Patrick Walton
