[HOTPLUG] **WIP** Add device removal support

dll/cpl/hotplug/hotplug.c

@@ -407,6 +407,23 @@ ShowDeviceProperties(
     HeapFree(GetProcessHeap(), 0, pszDevId);
 }
 
+static
+VOID
+SafeRemoveDevice(
+    _In_ DEVINST DevInst,
+    _In_opt_ HWND hwndDlg)
+{
+    CONFIGRET cr;
+
+    cr = CM_Request_Device_EjectW(DevInst, NULL, NULL, MAX_PATH, 0);
+    if (cr != CR_SUCCESS)
+    {
+        WCHAR szError[40];
+        swprintf(szError, L"Failed to remove device (0x%x)", cr);
+        MessageBoxW(hwndDlg, szError, NULL, MB_ICONEXCLAMATION | MB_OK);
+    }
+}
+
 INT_PTR
 CALLBACK
 SafeRemovalDlgProc(
@@ -505,6 +522,14 @@ SafeRemovalDlgProc(
                     ShowDeviceProperties(hwndDlg, GetSelectedDeviceInst(hwndDevTree));
                     break;
                 }
+
+                case IDC_SAFE_REMOVE_STOP:
+                case IDM_STOP:
+                {
+                    HWND hwndDevTree = GetDlgItem(hwndDlg, IDC_SAFE_REMOVE_DEVICE_TREE);
+                    SafeRemoveDevice(GetSelectedDeviceInst(hwndDevTree), hwndDlg);
+                    break;
+                }
             }
             break;