132 lines
3.1 KiB
C++
132 lines
3.1 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1999
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//
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// File: notify.c
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//
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//--------------------------------------------------------------------------
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#include "HotPlug.h"
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void
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OnTimerDeviceChange(
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PDEVICETREE DeviceTree
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)
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{
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//
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// if a refresh event is pending, rebuild the entire tree.
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//
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if (DeviceTree->RefreshEvent) {
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if (RefreshTree(DeviceTree)) {
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DeviceTree->RefreshEvent = FALSE;
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}
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}
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}
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BOOL
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RefreshTree(
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PDEVICETREE DeviceTree
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)
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{
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CONFIGRET ConfigRet;
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DEVINST DeviceInstance;
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DEVINST SelectedDevInst;
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PDEVTREENODE DevTreeNode;
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HTREEITEM hTreeItem;
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HCURSOR hCursor;
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if (DeviceTree->RedrawWait) {
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DeviceTree->RefreshEvent = TRUE;
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SetTimer(DeviceTree->hDlg, TIMERID_DEVICECHANGE,1000,NULL);
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return FALSE;
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}
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hCursor = SetCursor(LoadCursor(NULL, IDC_WAIT));
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DeviceTree->RedrawWait = TRUE;
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SendMessage(DeviceTree->hwndTree, WM_SETREDRAW, FALSE, 0L);
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SelectedDevInst = DeviceTree->SelectedTreeNode
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? DeviceTree->SelectedTreeNode->DevInst
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: 0;
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ClearRemovalList(DeviceTree);
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TreeView_DeleteAllItems(DeviceTree->hwndTree);
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RemoveChildSiblings(DeviceTree, &DeviceTree->ChildSiblingList);
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ConfigRet = CM_Get_Child_Ex(&DeviceInstance,
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DeviceTree->DevInst,
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0,
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DeviceTree->hMachine
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);
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if (ConfigRet == CR_SUCCESS) {
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AddChildSiblings(DeviceTree,
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NULL,
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DeviceInstance,
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0,
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TRUE
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);
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}
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DisplayChildSiblings(DeviceTree,
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&DeviceTree->ChildSiblingList,
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NULL,
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FALSE
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);
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//
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// restore treeview redraw state, and reset the selected item
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//
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DevTreeNode = DevTreeNodeByDevInst(SelectedDevInst,
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&DeviceTree->ChildSiblingList
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);
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if (DevTreeNode) {
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hTreeItem = DevTreeNode->hTreeItem;
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}
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else {
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hTreeItem = NULL;
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}
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if (!hTreeItem) {
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hTreeItem = TreeView_GetRoot(DeviceTree->hwndTree);
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}
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SendMessage(DeviceTree->hwndTree, WM_SETREDRAW, TRUE, 0L);
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DeviceTree->RedrawWait = FALSE;
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TreeView_SelectItem(DeviceTree->hwndTree, NULL);
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if (hTreeItem) {
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TreeView_SelectItem(DeviceTree->hwndTree, hTreeItem);
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} else {
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//
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// No device is selected
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//
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EnableWindow(GetDlgItem(DeviceTree->hDlg, IDC_STOPDEVICE), FALSE);
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EnableWindow(GetDlgItem(DeviceTree->hDlg, IDC_PROPERTIES), FALSE);
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SetDlgItemText(DeviceTree->hDlg, IDC_DEVICEDESC, TEXT(""));
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}
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SetCursor(hCursor);
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return TRUE;
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}
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