* Copyright (c) 2024-2025 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
* @addtogroup AbilityRuntime
* @{
*
* @brief Describe the functions provided by the application context.
*
* @syscap SystemCapability.Ability.AbilityRuntime.Core
* @since 13
*/
* @file application_context.h
*
* @brief Defines the application context APIs.
*
* @library libability_runtime.so
* @kit AbilityKit
* @syscap SystemCapability.Ability.AbilityRuntime.Core
* @since 13
*/
#ifndef ABILITY_RUNTIME_APPLICATION_CONTEXT_H
#define ABILITY_RUNTIME_APPLICATION_CONTEXT_H
#include <stdint.h>
#include <stddef.h>
#include "want.h"
#include "ability_runtime_common.h"
#include "context_constant.h"
#include "start_options.h"
#ifdef __cplusplus
extern "C" {
#endif
struct AbilityBase_Want;
typedef struct AbilityBase_Want AbilityBase_Want;
* @brief Obtain the cache directory of the application.
*
* @param buffer A pointer to a buffer that receives the cache directory of the application.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 13
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetCacheDir(
char* buffer, int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the area mode of the application.
*
* @param areaMode A pointer to the area mode.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the areaMode is null.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 13
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetAreaMode(AbilityRuntime_AreaMode* areaMode);
* @brief Obtain the bundle name.
*
* @param buffer A pointer to a buffer that receives the bundle name.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 13
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetBundleName(
char* buffer, int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the temp directory of the application.
*
* @param buffer A pointer to a buffer that receives the temp directory of the application.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetTempDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the files directory of the application.
*
* @param buffer A pointer to a buffer that receives the files directory of the application.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetFilesDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the database directory of the application.
*
* @param buffer A pointer to a buffer that receives the database directory of the application.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetDatabaseDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the preferences directory of the application.
*
* @param buffer A pointer to a buffer that receives the preferences directory of the application.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetPreferencesDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the bundle code directory of the application.
*
* @param buffer A pointer to a buffer that receives the bundle code directory of the application.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetBundleCodeDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the distributed files directory of the application.
*
* @param buffer A pointer to a buffer that receives the distributed files directory of the application.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetDistributedFilesDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the cloud file directory of the application.
*
* @param buffer A pointer to a buffer that receives the cloud file directory of the application.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetCloudFileDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Starts self UIAbility.
*
* @permission {@code ohos.permission.NDK_START_SELF_UI_ABILITY}
* @param want The arguments passed to start self UIAbility.
* For details, see {@link AbilityBase_Want}.
* @return Returns {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the call is successful.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_PERMISSION_DENIED} if the caller has no correct permission.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the arguments provided is invalid.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_NOT_SUPPORTED} if the device does not support starting self uiability.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_NO_SUCH_ABILITY} if the target ability does not exist.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_INCORRECT_ABILITY_TYPE} if the ability type is incorrect.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_CROWDTEST_EXPIRED} if the crowdtesting application expires.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_WUKONG_MODE} if the ability cannot be started in Wukong mode.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_CONTROLLED} if the app is controlled.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_EDM_CONTROLLED} if the app is controlled by EDM.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_CROSS_APP} if the caller tries to start a different application.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_INTERNAL} if internal error occurs.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_NOT_TOP_ABILITY} if the caller is not top ability.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_UPPER_LIMIT_REACHED}
* if the number of app instances reached the limit (since 17).
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_APP_INSTANCE_KEY_NOT_SUPPORTED}
* if the APP_INSTANCE_KEY cannot be specified (since 17).
* For details, see {@link AbilityRuntime_ErrorCode}.
* @since 15
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_StartSelfUIAbility(AbilityBase_Want *want);
* @brief Starts self UIAbility with start options.
*
* @permission {@code ohos.permission.NDK_START_SELF_UI_ABILITY}
* @param want The arguments passed to start self UIAbility.
* For details, see {@link AbilityBase_Want}.
* @param options The start options passed to start self UIAbility.
* For details, see {@link AbilityRuntime_StartOptions}.
* @return Returns {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the call is successful.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_PERMISSION_DENIED} if the caller has no correct permission.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the arguments provided is invalid.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_NOT_SUPPORTED} if the device does not support starting self uiability.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_NO_SUCH_ABILITY} if the target ability does not exist.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_INCORRECT_ABILITY_TYPE} if the ability type is incorrect.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_CROWDTEST_EXPIRED} if the crowdtesting application expires.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_WUKONG_MODE} if the ability cannot be started in Wukong mode.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_CONTROLLED} if the app is controlled.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_EDM_CONTROLLED} if the app is controlled by EDM.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_CROSS_APP} if the caller tries to start a different application.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_INTERNAL} if internal error occurs.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_NOT_TOP_ABILITY} if the caller is not foreground process.
* Returns {@link ABILITY_RUNTIME_ERROR_VISIBILITY_SETTING_DISABLED} if setting visibility is disabled.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_MULTI_APP_NOT_SUPPORTED}
* if the app clone or multi-instance is not supported.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_INVALID_APP_INSTANCE_KEY} if the app instance key is invalid.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_UPPER_LIMIT_REACHED} if the number of app instances reached the limit.
* Returns {@link ABILITY_RUNTIME_ERROR_MULTI_INSTANCE_NOT_SUPPORTED} if the multi-instance is not supported.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_APP_INSTANCE_KEY_NOT_SUPPORTED}
* if the APP_INSTANCE_KEY cannot be specified.
* For details, see {@link AbilityRuntime_ErrorCode}.
* @since 17
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_StartSelfUIAbilityWithStartOptions(AbilityBase_Want *want,
AbilityRuntime_StartOptions *options);
* @brief Obtain the resource directory of the target module.
*
* @param moduleName The module name.
* @param buffer A pointer to a buffer that receives the resource directory of the target module.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 20
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetResourceDir(const char* moduleName,
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the version code of the application.
*
* @param versionCode The version code of the application.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the versionCode is null.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* {@link ABILITY_RUNTIME_ERROR_CODE_GET_APPLICATION_INFO_FAILED} if the application info does not exist.
* @since 21
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetVersionCode(int64_t* versionCode);
* @brief Starts self UIAbility with start options and receives the process ID.
*
* @permission ohos.permission.NDK_START_SELF_UI_ABILITY
* @param want The arguments passed to start self UIAbility.
* For details, see {@link AbilityBase_Want}.
* @param options The start options passed to start self UIAbility.
* For details, see {@link AbilityRuntime_StartOptions}.
* @param targetPid The process ID of the started UIAbility.
* @return Returns {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the call is successful.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_PERMISSION_DENIED} if the caller has no correct permission.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the arguments provided is invalid.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_NOT_SUPPORTED} if the device does not support starting self uiability.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_NO_SUCH_ABILITY} if the target ability does not exist.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_INCORRECT_ABILITY_TYPE} if the ability type is incorrect.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_CROWDTEST_EXPIRED} if the crowdtesting application expires.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_WUKONG_MODE} if the ability cannot be started in Wukong mode.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_CONTROLLED} if the app is controlled.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_EDM_CONTROLLED} if the app is controlled by EDM.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_CROSS_APP} if the caller tries to start a different application.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_INTERNAL} if internal error occurs. such as connect system service failed.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_NOT_TOP_ABILITY} if the caller is not foreground process.
* Returns {@link ABILITY_RUNTIME_ERROR_VISIBILITY_SETTING_DISABLED} if setting visibility is disabled.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_MULTI_APP_NOT_SUPPORTED}
* if the app clone or multi-instance is not supported.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_INVALID_APP_INSTANCE_KEY} if the app instance key is invalid.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_UPPER_LIMIT_REACHED} if the number of app instances reached the limit.
* Returns {@link ABILITY_RUNTIME_ERROR_MULTI_INSTANCE_NOT_SUPPORTED} if the multi-instance is not supported.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_APP_INSTANCE_KEY_NOT_SUPPORTED}
* if the APP_INSTANCE_KEY cannot be specified.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_START_TIMEOUT} if starting UIAbility time out.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_MAIN_THREAD_NOT_SUPPORTED}
* if the API is called in the main thread of the app.
* For details, see {@link AbilityRuntime_ErrorCode}.
* @since 21
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_StartSelfUIAbilityWithPidResult(AbilityBase_Want *want,
AbilityRuntime_StartOptions *options, int32_t *targetPid);
* @brief Obtain the log file directory of the application.
*
* @param buffer A pointer to a buffer that receives the log file directory of the application.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 21
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetLogFileDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the launch parameter of starting UIAbility.
*
* @param buffer A pointer to a buffer that receives the launch parameter of starting UIAbility.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 21
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetLaunchParameter(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtain the latest parameter of starting UIAbility.
*
* @param buffer A pointer to a buffer that receives the latest parameter of starting UIAbility.
* @param bufferSize The length of the buffer.
* @param writeLength The string length actually written to the buffer,
* when returning {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR}.
* @return The error code.
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if the buffer or writeLength is null,
* or the buffer size is less than the minimum buffer size.
* {@link ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST} if the application context does not exist.
* @since 21
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetLatestParameter(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Notify page changed.
*
* @param targetPageName The target page name.
* @param targetPageNameLength The target page name length.
* @param windowId The window identifier associated with the target page.
*
* @return Returns {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} if the operation is successful.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID} if targetPageName is null or windowId is invalid.
* Returns {@link ABILITY_RUNTIME_ERROR_CODE_INTERNAL} if internal error occurs. such as connect system service failed.
* @since 23
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextNotifyPageChanged(
const char* targetPageName, int32_t targetPageNameLength, int32_t windowId);
#ifdef __cplusplus
}
#endif
#endif