OpenXR，如何在windows、C和Vulkan上获得xrGetInstanceProcAddr

Question

我需要得到特定于平台的xrGetInstanceProcAddr，我在windows上，语言是C，API是vulkan。

在运行以下代码时，出现了"extern未定义符号xrGetInstanceProcAddr“错误：

#define XR_USE_PLATFORM_WIN32
#define XR_USE_GRAPHICS_API_VULKAN

#ifdef XR_USE_PLATFORM_WIN32
#include <Windows.h>
#endif

#include "../openxr/openxr.h"
#include "../openxr/openxr_platform.h"
#include "../openxr/openxr_platform_defines.h"
#include "../openxr/openxr_reflection.h"

main(int argc, char** argv)
{
    XrResult result = XR_SUCCESS;
    uint32_t ext_count = 0;

    PFN_xrEnumerateInstanceExtensionProperties qxrEnumerateInstanceExtensionProperties;
    
    result = xrGetInstanceProcAddr(XR_NULL_HANDLE, "xrEnumerateInstanceExtensionProperties", (PFN_xrVoidFunction*)&qxrEnumerateInstanceExtensionProperties);

    result = qxrEnumerateInstanceExtensionProperties(NULL, 0, &ext_count, NULL);
}

Answer 1

需要openxr加载程序。在visual中，nuget包管理器：

安装-Package OpenXR.Loader -Version 1.0.10.2