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// Copyright 2010-2012 The W32 Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package w32
import (
"syscall"
"unsafe"
)
var (
modole32 = syscall.NewLazyDLL("ole32.dll")
procCoInitializeEx = modole32.NewProc("CoInitializeEx")
procCoInitialize = modole32.NewProc("CoInitialize")
procCoUninitialize = modole32.NewProc("CoUninitialize")
procCreateStreamOnHGlobal = modole32.NewProc("CreateStreamOnHGlobal")
)
func CoInitializeEx(coInit uintptr) HRESULT {
ret, _, _ := procCoInitializeEx.Call(
0,
coInit)
switch uint32(ret) {
case E_INVALIDARG:
panic("CoInitializeEx failed with E_INVALIDARG")
case E_OUTOFMEMORY:
panic("CoInitializeEx failed with E_OUTOFMEMORY")
case E_UNEXPECTED:
panic("CoInitializeEx failed with E_UNEXPECTED")
}
return HRESULT(ret)
}
func CoInitialize() {
procCoInitialize.Call(0)
}
func CoUninitialize() {
procCoUninitialize.Call()
}
func CreateStreamOnHGlobal(hGlobal HGLOBAL, fDeleteOnRelease bool) *IStream {
stream := new(IStream)
ret, _, _ := procCreateStreamOnHGlobal.Call(
uintptr(hGlobal),
uintptr(BoolToBOOL(fDeleteOnRelease)),
uintptr(unsafe.Pointer(&stream)))
switch uint32(ret) {
case E_INVALIDARG:
panic("CreateStreamOnHGlobal failed with E_INVALIDARG")
case E_OUTOFMEMORY:
panic("CreateStreamOnHGlobal failed with E_OUTOFMEMORY")
case E_UNEXPECTED:
panic("CreateStreamOnHGlobal failed with E_UNEXPECTED")
}
return stream
}
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