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