英文:
Golang: using Windows 10 API / UWP / System.WindowsRuntime?
问题
使用Go中的syscall，我如何调用Windows 10中的UWP API？我已经看过并尝试了许多_win32_的示例，但当我尝试使用System.WindowsRuntime.dll时，出现了问题；具体来说，我收到了以下错误信息：
panic: Failed to load System.WindowsRuntime.dll: The specified module could not be found.
（这是在运行时发生的，二进制文件构建正常）
我尝试使用标准的go build命令构建，以及
go build -ldflags="-H windows"
示例代码：
var(
windowsRuntime = syscall.NewLazyDLL("System.WindowsRuntime.dll")
getDiskFreeSpace = windowsRuntime.NewProc("GetDiskFreeSpace")
)
注意：我还尝试了其他变体：
windowsRuntime = syscall.NewLazyDLL("System.Runtime.WindowsRuntime.dll")
和
windowsRuntime = syscall.NewLazyDLL("WindowsRuntime.dll")
有人能够成功运行这个程序或者对此有任何建议吗？
一如既往，非常感谢！
英文:
Using syscall in Go how can I call the UWP APIs within Windows 10? I have seen and tried many win32 examples, but when I tried using System.WindowsRuntime.dll it was a no-go; specifically, I received:
panic: Failed to load System.WindowsRuntime.dll: The specified module could not be found.
(this was at runtime, the binary built fine)
I tried building both with a standard go build as well as
go build -ldflags="-H windows"
example code:
var(
windowsRuntime = syscall.NewLazyDLL("System.WindowsRuntime.dll")
getDiskFreeSpace = windowsRuntime.NewProc("GetDiskFreeSpace")
)
Note: Other variants tried:
windowsRuntime = syscall.NewLazyDLL("System.Runtime.WindowsRuntime.dll")
&
windowsRuntime = syscall.NewLazyDLL("WindowsRuntime.dll")
Anyone been able to get this running or have any advice on the matter?
As always, greatly appreciated!!
答案1
得分: 2
创建一个如下所示的文件：
//go:generate mkwinsyscall -output zfree.go free.go
//sys getDiskFreeSpace(pathName string, sectorsPerCluster *int, bytesPerSector *int, freeClusters *int, numberOfClusters *int) (err error) = GetDiskFreeSpaceA
package main
func main() {
var bytesPerSector, freeClusters, numberOfClusters, sectorsPerCluster int
getDiskFreeSpace(
`C:\`,
§orsPerCluster,
&bytesPerSector,
&freeClusters,
&numberOfClusters,
)
println("bytesPerSector", bytesPerSector)
println("freeClusters", freeClusters)
println("numberOfClusters", numberOfClusters)
println("sectorsPerCluster", sectorsPerCluster)
}
然后进行构建：
go generate
go mod init free
go mod tidy
go build
结果：
bytesPerSector 512
freeClusters 12511186
numberOfClusters 25434879
sectorsPerCluster 8
https://github.com/golang/sys/tree/master/windows/mkwinsyscall
英文:
Create a file like this:
//go:generate mkwinsyscall -output zfree.go free.go
//sys getDiskFreeSpace(pathName string, sectorsPerCluster *int, bytesPerSector *int, freeClusters *int, numberOfClusters *int) (err error) = GetDiskFreeSpaceA
package main
func main() {
var bytesPerSector, freeClusters, numberOfClusters, sectorsPerCluster int
getDiskFreeSpace(
`C:\`,
&sectorsPerCluster,
&bytesPerSector,
&freeClusters,
&numberOfClusters,
)
println("bytesPerSector", bytesPerSector)
println("freeClusters", freeClusters)
println("numberOfClusters", numberOfClusters)
println("sectorsPerCluster", sectorsPerCluster)
}
Then build:
go generate
go mod init free
go mod tidy
go build
Result:
bytesPerSector 512
freeClusters 12511186
numberOfClusters 25434879
sectorsPerCluster 8
https://github.com/golang/sys/tree/master/windows/mkwinsyscall
答案2
得分: 0
我不知道你在哪里找到了"System.WindowsRuntime.dll"，据我所知，它并不存在（除非你手动创建了一个名为这样的DLL）。
至于System.Runtime.WindowsRuntime.dll，它是.NET Framework的一部分，而不是Windows，它是一个托管的DLL。你不能使用syscall.NewLazyDLL加载这样的DLL。而且，该DLL实际上并不包含任何Windows API，只是为了让.NET能够与它们一起工作的粘合剂。
你可能正在寻找combase.dll中的RoGetActivationFactory等函数。
英文:
I have no idea where you found "System.WindowsRuntime.dll" because as far as I can tell, it doesn't exist (unless you manually made a DLL named that).
As for System.Runtime.WindowsRuntime.dll: it's part of .NET Framework, not Windows, and it is a managed DLL. You cannot load such DLLs using syscall.NewLazyDLL. What's more, that DLL doesn't really contain any Windows APIs - just glue for .NET to be able to work with them.
You're probably looking for functions like RoGetActivationFactory in combase.dll.
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