jna

问题 I'm trying to build a Java app that reads the status of a laptop battery and sends a notification to the user if it's low. In order to do this, I'm using jna with Kernel32 native library as explained in the first answer of this question: How to get the remaining battery life in a Windows system? Running the example, the program yields this output: ACLineStatus: Offline Battery Flag: High, more than 66 percent Battery Life: Unknown Battery Left: 0 seconds Battery Full: 10832 seconds The fields

问题 I'm trying to build a Java app that reads the status of a laptop battery and sends a notification to the user if it's low. In order to do this, I'm using jna with Kernel32 native library as explained in the first answer of this question: How to get the remaining battery life in a Windows system? Running the example, the program yields this output: ACLineStatus: Offline Battery Flag: High, more than 66 percent Battery Life: Unknown Battery Left: 0 seconds Battery Full: 10832 seconds The fields

问题 I am using OSHI https://github.com/oshi/oshi to monitor the hardware. There is a method HWDiskStore[] getDisks(); https://github.com/oshi/oshi/blob/master/oshi-core/src/main/java/oshi/hardware/Disks.java to get the list of all hard drives on the machine. Is it possible to get HWDiskStore for a particular path like FileStore getFileStore(Path path) https://docs.oracle.com/javase/8/docs/api/java/nio/file/Files.html#getFileStore-java.nio.file.Path- If no, what is a reliable way to match a

问题 I am using OSHI https://github.com/oshi/oshi to monitor the hardware. There is a method HWDiskStore[] getDisks(); https://github.com/oshi/oshi/blob/master/oshi-core/src/main/java/oshi/hardware/Disks.java to get the list of all hard drives on the machine. Is it possible to get HWDiskStore for a particular path like FileStore getFileStore(Path path) https://docs.oracle.com/javase/8/docs/api/java/nio/file/Files.html#getFileStore-java.nio.file.Path- If no, what is a reliable way to match a

问题 I am using OSHI https://github.com/oshi/oshi to monitor the hardware. There is a method HWDiskStore[] getDisks(); https://github.com/oshi/oshi/blob/master/oshi-core/src/main/java/oshi/hardware/Disks.java to get the list of all hard drives on the machine. Is it possible to get HWDiskStore for a particular path like FileStore getFileStore(Path path) https://docs.oracle.com/javase/8/docs/api/java/nio/file/Files.html#getFileStore-java.nio.file.Path- If no, what is a reliable way to match a

问题 I have implemented a JNA bridge to FDK-AAC. Source code can be found in here When bench-marking my code, I can get hundreds of successful runs on the same input, and then occasionally a C-level crash that'll kill the entire process, causing a core-dump to be generated: Looking at the core dump, it looks like this: #1 0x00007f3e92e00f5d in __GI_abort () at abort.c:90 #2 0x00007f3e92e4928d in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f3e92f70528 "*** Error in `%s': %s: 0x%s

问题 I am trying to pass data to a native C library within a Java Android app and i keep getting this error? HostConnection::get() New Host Connection established 0xe209a150, tid 16633 D/HostConnection: HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_YUV420_888_to_NV21 ANDROID_EMU_YUV_Cache ANDROID_EMU_async_unmap_buffer GL_OES_EGL_image_external_essl3 GL_OES_vertex_array_object GL

问题 I am a little stuck trying to pass an implementation of this Swift code in Java, to C. Would appreciate any advice i am using JNA to integrate between the Java and Matlab generated C code. This is the Swift call: GetResult(uptime, &result_out) It Maps to the C code: void GetResult(double time, Result_t *Result) The C struct Result_t is too big for here, however it is a combination of double's and int's. I understand &result_out is a swift pointer? How is it best to go about implementing the

问题 I am passing a pointer to an int[] as here, which is in my structure/class in java see below: int[] initialDynamicSize = new int[]{1, initialDynamicAllocatedSize}; int[] allFloorsSize = new int[]{1, allFloorsAllocatedSize}; Pointer PTRinitialDynamicSize = new Memory(2*Native.getNativeSize(Integer.TYPE)); PTRinitialDynamicSize.setInt(0*Native.getNativeSize(Integer.TYPE),1); PTRinitialDynamicSize.setInt(1*Native.getNativeSize(Integer.TYPE),initialDynamicAllocatedSize); Pointer PTRallFloorsSize

问题 I'm trying to access the IDesktopWallpaper interface with JNA, but I've hit a wall. I went through ShOljIdl_core.idl (from Windows 10 SDK) and discovered the GUID of the interface as follows // IDesktopWallpaper [ uuid(B92B56A9-8B55-4E14-9A89-0199BBB6F93B), object ] and the GUID of the concrete class that implements the interface // CLSID_DesktopWallpaper [uuid(C2CF3110-460E-4fc1-B9D0-8A1C0C9CC4BD)] coclass DesktopWallpaper { interface IDesktopWallpaper; } So I followed the official example