2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
6 % CCCC L IIIII PPPP BBBB OOO AAA RRRR DDDD %
7 % C L I P P B B O O A A R R D D %
8 % C L I PPP BBBB O O AAAAA RRRR D D %
9 % C L I P B B O O A A R R D D %
10 % CCCC LLLLL IIIII P BBBB OOO A A R R DDDD %
13 % Read/Write Windows Clipboard. %
20 % Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
26 % http://www.imagemagick.org/script/license.php %
28 % Unless required by applicable law or agreed to in writing, software %
29 % distributed under the License is distributed on an "AS IS" BASIS, %
30 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
31 % See the License for the specific language governing permissions and %
32 % limitations under the License. %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
42 #include "MagickCore/studio.h"
43 #if defined(MAGICKCORE_WINGDI32_DELEGATE)
44 # if defined(__CYGWIN__)
47 /* All MinGW needs ... */
51 #include "MagickCore/blob.h"
52 #include "MagickCore/blob-private.h"
53 #include "MagickCore/cache.h"
54 #include "MagickCore/exception.h"
55 #include "MagickCore/exception-private.h"
56 #include "MagickCore/image.h"
57 #include "MagickCore/image-private.h"
58 #include "MagickCore/list.h"
59 #include "MagickCore/magick.h"
60 #include "MagickCore/memory_.h"
61 #include "MagickCore/nt-base-private.h"
62 #include "MagickCore/nt-feature.h"
63 #include "MagickCore/pixel-accessor.h"
64 #include "MagickCore/quantum-private.h"
65 #include "MagickCore/static.h"
66 #include "MagickCore/string_.h"
67 #include "MagickCore/module.h"
72 #if defined(MAGICKCORE_WINGDI32_DELEGATE)
73 static MagickBooleanType
74 WriteCLIPBOARDImage(const ImageInfo *,Image *,ExceptionInfo *);
78 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
82 % R e a d C L I P B O A R D I m a g e %
86 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
88 % ReadCLIPBOARDImage() reads an image from the system clipboard and returns
89 % it. It allocates the memory necessary for the new Image structure and
90 % returns a pointer to the new image.
92 % The format of the ReadCLIPBOARDImage method is:
94 % Image *ReadCLIPBOARDImage(const ImageInfo *image_info,
95 % ExceptionInfo exception)
97 % A description of each parameter follows:
99 % o image_info: the image info.
101 % o exception: return any errors or warnings in this structure.
104 #if defined(MAGICKCORE_WINGDI32_DELEGATE)
105 static Image *ReadCLIPBOARDImage(const ImageInfo *image_info,
106 ExceptionInfo *exception)
120 assert(image_info != (const ImageInfo *) NULL);
121 assert(image_info->signature == MagickSignature);
122 if (image_info->debug != MagickFalse)
123 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
124 image_info->filename);
125 assert(exception != (ExceptionInfo *) NULL);
126 assert(exception->signature == MagickSignature);
127 image=AcquireImage(image_info,exception);
136 bitmapH=(HBITMAP) GetClipboardData(CF_BITMAP);
137 hPal=(HPALETTE) GetClipboardData(CF_PALETTE);
139 if ( bitmapH == NULL )
140 ThrowReaderException(CoderError,"NoBitmapOnClipboard");
160 /* create an offscreen DC for the source */
161 hMemDC=CreateCompatibleDC(NULL);
162 hOldBitmap=(HBITMAP) SelectObject(hMemDC,bitmapH);
163 GetObject(bitmapH,sizeof(BITMAP),(LPSTR) &bitmap);
164 if ((image->columns == 0) || (image->rows == 0))
166 image->rows=bitmap.bmHeight;
167 image->columns=bitmap.bmWidth;
170 Initialize the bitmap header info.
172 (void) ResetMagickMemory(&DIBinfo,0,sizeof(BITMAPINFO));
173 DIBinfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
174 DIBinfo.bmiHeader.biWidth=(LONG) image->columns;
175 DIBinfo.bmiHeader.biHeight=(-1)*(LONG) image->rows;
176 DIBinfo.bmiHeader.biPlanes=1;
177 DIBinfo.bmiHeader.biBitCount=32;
178 DIBinfo.bmiHeader.biCompression=BI_RGB;
181 ThrowReaderException(CoderError,"UnableToCreateADC");
182 hBitmap=CreateDIBSection(hDC,&DIBinfo,DIB_RGB_COLORS,(void **) &ppBits,
186 ThrowReaderException(CoderError,"UnableToCreateBitmap");
187 /* create an offscreen DC */
188 hDC=CreateCompatibleDC(NULL);
191 DeleteObject(hBitmap);
192 ThrowReaderException(CoderError,"UnableToCreateADC");
194 hOldBitmap=(HBITMAP) SelectObject(hDC,hBitmap);
198 DeleteObject(hBitmap);
199 ThrowReaderException(CoderError,"UnableToCreateBitmap");
203 /* Kenichi Masuko says this needed */
204 SelectPalette(hDC, hPal, FALSE);
207 /* bitblt from the memory to the DIB-based one */
208 BitBlt(hDC,0,0,(int) image->columns,(int) image->rows,hMemDC,0,0,SRCCOPY);
209 /* finally copy the pixels! */
211 for (y=0; y < (ssize_t) image->rows; y++)
213 q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
214 if (q == (Quantum *) NULL)
216 for (x=0; x < (ssize_t) image->columns; x++)
218 SetPixelRed(image,ScaleCharToQuantum(pBits->rgbRed),q);
219 SetPixelGreen(image,ScaleCharToQuantum(pBits->rgbGreen),q);
220 SetPixelBlue(image,ScaleCharToQuantum(pBits->rgbBlue),q);
221 SetPixelAlpha(image,OpaqueAlpha,q);
223 q+=GetPixelChannels(image);
225 if (SyncAuthenticPixels(image,exception) == MagickFalse)
229 DeleteObject(hBitmap);
232 (void) CloseBlob(image);
233 return(GetFirstImageInList(image));
235 #endif /* MAGICKCORE_WINGDI32_DELEGATE */
238 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
242 % R e g i s t e r C L I P B O A R D I m a g e %
246 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
248 % RegisterCLIPBOARDImage() adds attributes for the clipboard "image format" to
249 % the list of supported formats. The attributes include the image format
250 % tag, a method to read and/or write the format, whether the format
251 % supports the saving of more than one frame to the same file or blob,
252 % whether the format supports native in-memory I/O, and a brief
253 % description of the format.
255 % The format of the RegisterCLIPBOARDImage method is:
257 % size_t RegisterCLIPBOARDImage(void)
260 ModuleExport size_t RegisterCLIPBOARDImage(void)
265 entry=SetMagickInfo("CLIPBOARD");
266 #if defined(MAGICKCORE_WINGDI32_DELEGATE)
267 entry->decoder=(DecodeImageHandler *) ReadCLIPBOARDImage;
268 entry->encoder=(EncodeImageHandler *) WriteCLIPBOARDImage;
270 entry->adjoin=MagickFalse;
271 entry->format_type=ImplicitFormatType;
272 entry->description=ConstantString("The system clipboard");
273 entry->module=ConstantString("CLIPBOARD");
274 (void) RegisterMagickInfo(entry);
275 return(MagickImageCoderSignature);
279 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
283 % U n r e g i s t e r C L I P B O A R D I m a g e %
287 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
289 % UnregisterCLIPBOARDImage() removes format registrations made by the
290 % RGB module from the list of supported formats.
292 % The format of the UnregisterCLIPBOARDImage method is:
294 % UnregisterCLIPBOARDImage(void)
297 ModuleExport void UnregisterCLIPBOARDImage(void)
299 (void) UnregisterMagickInfo("CLIPBOARD");
303 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
307 % W r i t e C L I P B O A R D I m a g e %
311 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
313 % WriteCLIPBOARDImage() writes an image to the system clipboard.
315 % The format of the WriteCLIPBOARDImage method is:
317 % MagickBooleanType WriteCLIPBOARDImage(const ImageInfo *image_info,
318 % Image *image,ExceptionInfo *exception)
320 % A description of each parameter follows.
322 % o image_info: the image info.
324 % o image: The image.
326 % o exception: return any errors or warnings in this structure.
329 #if defined(MAGICKCORE_WINGDI32_DELEGATE)
330 static MagickBooleanType WriteCLIPBOARDImage(const ImageInfo *image_info,
331 Image *image,ExceptionInfo *exception)
334 Allocate memory for pixels.
336 assert(image_info != (const ImageInfo *) NULL);
337 assert(image_info->signature == MagickSignature);
338 assert(image != (Image *) NULL);
339 assert(image->signature == MagickSignature);
340 if (image->debug != MagickFalse)
341 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
348 bitmapH=(HBITMAP) ImageToHBITMAP(image,exception);
349 SetClipboardData(CF_BITMAP,bitmapH);
354 #endif /* MAGICKCORE_WINGDI32_DELEGATE */