1 /* 2 * Copyright (c) 2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef OHOS_HDI_DISPLAY_V1_3_IDISPLAY_COMPOSER_INTERFACE_H 17 #define OHOS_HDI_DISPLAY_V1_3_IDISPLAY_COMPOSER_INTERFACE_H 18 19 #include "v1_2/include/idisplay_composer_interface.h" 20 #include "v1_3/display_composer_type.h" 21 22 namespace OHOS { 23 namespace HDI { 24 namespace Display { 25 namespace Composer { 26 namespace V1_3 { 27 28 class IDisplayComposerInterface : public V1_2::IDisplayComposerInterface { 29 public: 30 /** 31 * @brief Obtains all interfaces of IDisplayComposerInterface. 32 * 33 * @return Returns <b>IDisplayComposerInterface*</b> if the operation is successful; 34 * returns an null point otherwise. 35 * @since 6.0 36 * @version 1.0 37 */ 38 static IDisplayComposerInterface* Get(bool needSMQ = true); 39 40 /** 41 * @brief Registers the callback to be invoked when the environment changes. 42 * 43 * @param cb Indicates the instance used to notify the graphics service of an environment change event occurred. 44 * @param data Data used by cb 45 * 46 * @return Returns <b>0</b> if the operation is successful; returns an error code defined 47 * in {@link DispErrCode} otherwise. 48 * @since 6.0 49 * @version 1.0 50 */ 51 virtual int32_t RegHwcEventCallback(HwcEventCallback cb, void *data) = 0; 52 }; 53 } // V1_3 54 } // Composer 55 } // Display 56 } // HDI 57 } // OHOS 58 #endif // OHOS_HDI_DISPLAY_V1_3_IDISPLAY_COMPOSER_INTERFACE_H 59