windows: add Global{Alloc,Free}

Reference: https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-globalalloc https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-globalfree
golang · Jun 21, 2022 · 70bceee · 70bceee
1 parent 4f61da8
commit 70bceee
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diff --git a/windows/syscall_windows.go b/windows/syscall_windows.go
@@ -364,6 +364,8 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
 //sys	GetActiveProcessorCount(groupNumber uint16) (ret uint32)
 //sys	GetMaximumProcessorCount(groupNumber uint16) (ret uint32)
+//sys	GlobalFree(hmem Handle) (handle Handle, err error) [failretval!=0]
+//sys	GlobalAlloc(flags uint32, length uint32) (ptr uintptr, err error)
 
 // Volume Management Functions
 //sys	DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW

diff --git a/windows/types_windows.go b/windows/types_windows.go
@@ -3174,3 +3174,12 @@ type ModuleInfo struct {
 }
 
 const ALL_PROCESSOR_GROUPS = 0xFFFF
+
+// Constants for GlobalAlloc flags.
+const (
+	GMEM_FIXED    = 0x0
+	GMEM_MOVEABLE = 0x2
+	GMEM_ZEROINIT = 0x40
+	GHND          = GMEM_MOVEABLE | GMEM_ZEROINIT
+	GPTR          = GMEM_FIXED | GMEM_ZEROINIT
+)
diff --git a/windows/zsyscall_windows.go b/windows/zsyscall_windows.go