ImageMagick-7/MagickCore/channel.h

0001 /*
0002   Copyright @ 1999 ImageMagick Studio LLC, a non-profit organization
0003   dedicated to making software imaging solutions freely available.
0004
0005   You may not use this file except in compliance with the License.  You may
0006   obtain a copy of the License at
0007
0008     https://imagemagick.org/script/license.php
0009
0010   Unless required by applicable law or agreed to in writing, software
0011   distributed under the License is distributed on an "AS IS" BASIS,
0012   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0013   See the License for the specific language governing permissions and
0014   limitations under the License.
0015
0016   MagickCore image channel methods.
0017 */
0018 #ifndef MAGICKCORE_CHANNEL_H
0019 #define MAGICKCORE_CHANNEL_H
0020
0021 #include <MagickCore/image.h>
0022
0023 #if defined(__cplusplus) || defined(c_plusplus)
0024 extern "C" {
0025 #endif
0026
0027 typedef enum
0028 {
0029   UndefinedAlphaChannel,
0030   ActivateAlphaChannel,
0031   AssociateAlphaChannel,
0032   BackgroundAlphaChannel,
0033   CopyAlphaChannel,
0034   DeactivateAlphaChannel,
0035   DiscreteAlphaChannel,
0036   DisassociateAlphaChannel,
0037   ExtractAlphaChannel,
0038   OffAlphaChannel,
0039   OnAlphaChannel,
0040   OpaqueAlphaChannel,
0041   RemoveAlphaChannel,
0042   SetAlphaChannel,
0043   ShapeAlphaChannel,
0044   TransparentAlphaChannel,
0045   OffIfOpaqueAlphaChannel
0046 } AlphaChannelOption;
0047
0048 extern MagickExport Image
0049   *ChannelFxImage(const Image *,const char *,ExceptionInfo *),
0050   *CombineImages(const Image *,const ColorspaceType,ExceptionInfo *),
0051   *SeparateImage(const Image *,const ChannelType,ExceptionInfo *),
0052   *SeparateImages(const Image *,ExceptionInfo *);
0053
0054 extern MagickExport MagickBooleanType
0055   GetImageAlphaChannel(const Image *),
0056   SetImageAlphaChannel(Image *,const AlphaChannelOption,ExceptionInfo *);
0057
0058 #if defined(__cplusplus) || defined(c_plusplus)
0059 }
0060 #endif
0061
0062 #endif