59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef SWITCHTOUITHREAD_H
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#define SWITCHTOUITHREAD_H
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// foreward declaration
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struct MethodInfo;
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/**
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* Switch thread to match the thread the widget was created in so messages will be dispatched.
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*/
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class nsSwitchToUIThread {
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public:
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virtual BOOL CallMethod(MethodInfo *info) = 0;
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};
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//
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// Structure used for passing the information necessary for synchronously
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// invoking a method on the GUI thread...
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//
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struct MethodInfo {
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nsSwitchToUIThread* target;
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UINT methodId;
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int nArgs;
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DWORD* args;
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MethodInfo(nsSwitchToUIThread *obj, UINT id, int numArgs=0, DWORD *arguments = 0) {
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target = obj;
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methodId = id;
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nArgs = numArgs;
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args = arguments;
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}
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BOOL Invoke() { return target->CallMethod(this); }
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};
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#endif // TOUITHRD_H
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