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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/win/wrapped_window_proc.h"
#include "base/atomicops.h"
#include "base/logging.h"
#include "base/process/memory.h"
namespace {
base::win::WinProcExceptionFilter s_exception_filter = NULL;
} // namespace.
namespace base {
namespace win {
WinProcExceptionFilter SetWinProcExceptionFilter(
WinProcExceptionFilter filter) {
subtle::AtomicWord rv = subtle::NoBarrier_AtomicExchange(
reinterpret_cast<subtle::AtomicWord*>(&s_exception_filter),
reinterpret_cast<subtle::AtomicWord>(filter));
return reinterpret_cast<WinProcExceptionFilter>(rv);
}
int CallExceptionFilter(EXCEPTION_POINTERS* info) {
return s_exception_filter ? s_exception_filter(info) :
EXCEPTION_CONTINUE_SEARCH;
}
BASE_EXPORT void InitializeWindowClass(
const char16* class_name,
WNDPROC window_proc,
UINT style,
int class_extra,
int window_extra,
HCURSOR cursor,
HBRUSH background,
const char16* menu_name,
HICON large_icon,
HICON small_icon,
WNDCLASSEX* class_out) {
class_out->cbSize = sizeof(WNDCLASSEX);
class_out->style = style;
class_out->lpfnWndProc = window_proc;
class_out->cbClsExtra = class_extra;
class_out->cbWndExtra = window_extra;
class_out->hInstance = base::GetModuleFromAddress(window_proc);
class_out->hIcon = large_icon;
class_out->hCursor = cursor;
class_out->hbrBackground = background;
class_out->lpszMenuName = menu_name;
class_out->lpszClassName = class_name;
class_out->hIconSm = small_icon;
// Check if |window_proc| is valid.
DCHECK(class_out->hInstance != NULL);
}
} // namespace win
} // namespace base
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