--- /dev/null
+/*
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %
+% %
+% %
+% SSSSS CCCC RRRR EEEEE EEEEE N N SSSSS H H OOO TTTTT %
+% SS C R R E E NN N SS H H O O T %
+% SSS C RRRR EEE EEE N N N SSS HHHHH O O T %
+% SS C R R E E N NN SS H H O O T %
+% SSSSS CCCC R R EEEEE EEEEE N N SSSSS H H OOO T %
+% %
+% %
+% Takes a screenshot from the monitor(s). %
+% %
+% Software Design %
+% Dirk Lemstra %
+% April 2014 %
+% %
+% %
+% Copyright 1999-2014 ImageMagick Studio LLC, a non-profit organization %
+% dedicated to making software imaging solutions freely available. %
+% %
+% You may not use this file except in compliance with the License. You may %
+% obtain a copy of the License at %
+% %
+% http://www.imagemagick.org/script/license.php %
+% %
+% 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. %
+% %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+%
+*/
+\f
+/*
+ Include declarations.
+*/
+#include "MagickCore/studio.h"
+#if defined(MAGICKCORE_WINGDI32_DELEGATE)
+# if defined(__CYGWIN__)
+# include <windows.h>
+# else
+ /* All MinGW needs ... */
+# include "MagickCore/nt-base-private.h"
+# include <wingdi.h>
+# endif
+#endif
+#include "MagickCore/blob.h"
+#include "MagickCore/blob-private.h"
+#include "MagickCore/cache.h"
+#include "MagickCore/exception.h"
+#include "MagickCore/exception-private.h"
+#include "MagickCore/image.h"
+#include "MagickCore/image-private.h"
+#include "MagickCore/list.h"
+#include "MagickCore/magick.h"
+#include "MagickCore/memory_.h"
+#include "MagickCore/nt-feature.h"
+#include "MagickCore/pixel-accessor.h"
+#include "MagickCore/quantum-private.h"
+#include "MagickCore/static.h"
+#include "MagickCore/string_.h"
+#include "MagickCore/module.h"
+\f
+/*
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %
+% %
+% %
+% R e a d S C R E E N S H O T I m a g e %
+% %
+% %
+% %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% ReadSCREENSHOTImage() Takes a screenshot from the monitor(s).
+%
+% The format of the ReadSCREENSHOTImage method is:
+%
+% Image *ReadXImage(const ImageInfo *image_info,ExceptionInfo *exception)
+%
+% A description of each parameter follows:
+%
+% o image_info: the image info.
+%
+% o exception: return any errors or warnings in this structure.
+%
+*/
+
+#if defined(MAGICKCORE_WINGDI32_DELEGATE)
+static Image *ReadWindowsSCREENSHOTImage(const ImageInfo *image_info,
+ ExceptionInfo *exception)
+{
+ BITMAPINFO
+ bmi;
+
+ DISPLAY_DEVICE
+ device;
+
+ HBITMAP
+ bitmap,
+ bitmapOld;
+
+ HDC
+ bitmapDC,
+ hDC;
+
+ Image
+ *image,
+ *screen;
+
+ int
+ i;
+
+ register Quantum
+ *q;
+
+ register ssize_t
+ x;
+
+ RGBTRIPLE
+ *p;
+
+ ssize_t
+ y;
+
+ assert(image_info != (const ImageInfo *) NULL);
+ assert(image_info->signature == MagickSignature);
+ if (image_info->debug != MagickFalse)
+ (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
+ image_info->filename);
+ assert(exception != (ExceptionInfo *) NULL);
+ assert(exception->signature == MagickSignature);
+
+ i=0;
+ device.cb = sizeof(device);
+ image=(Image *) NULL;
+ while(EnumDisplayDevices(NULL,i,&device,0) && ++i)
+ {
+ if ((device.StateFlags & DISPLAY_DEVICE_ACTIVE) != DISPLAY_DEVICE_ACTIVE)
+ continue;
+
+ hDC=CreateDC(device.DeviceName,device.DeviceName,NULL,NULL);
+ if (hDC == (HDC) NULL)
+ ThrowReaderException(CoderError,"UnableToCreateDC");
+
+ screen=AcquireImage(image_info,exception);
+ screen->columns=(size_t) GetDeviceCaps(hDC,HORZRES);
+ screen->rows=(size_t) GetDeviceCaps(hDC,VERTRES);
+ screen->storage_class=DirectClass;
+
+ if (image == (Image *) NULL)
+ image=screen;
+ else
+ AppendImageToList(&image,screen);
+
+ bitmapDC=CreateCompatibleDC(hDC);
+ if (bitmapDC == (HDC) NULL)
+ {
+ DeleteDC(hDC);
+ ThrowReaderException(CoderError,"UnableToCreateDC");
+ }
+ (void) ResetMagickMemory(&bmi,0,sizeof(BITMAPINFO));
+ bmi.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
+ bmi.bmiHeader.biWidth=(LONG) screen->columns;
+ bmi.bmiHeader.biHeight=(-1)*(LONG) screen->rows;
+ bmi.bmiHeader.biPlanes=1;
+ bmi.bmiHeader.biBitCount=24;
+ bmi.bmiHeader.biCompression=BI_RGB;
+ bitmap=CreateDIBSection(hDC,&bmi,DIB_RGB_COLORS,(void **) &p,NULL,0);
+ if (bitmap == (HBITMAP) NULL)
+ {
+ DeleteDC(hDC);
+ DeleteDC(bitmapDC);
+ ThrowReaderException(CoderError,"UnableToCreateBitmap");
+ }
+ bitmapOld=(HBITMAP) SelectObject(bitmapDC,bitmap);
+ if (bitmapOld == (HBITMAP) NULL)
+ {
+ DeleteDC(hDC);
+ DeleteDC(bitmapDC);
+ DeleteObject(bitmap);
+ ThrowReaderException(CoderError,"UnableToCreateBitmap");
+ }
+ BitBlt(bitmapDC,0,0,(int) screen->columns,(int) screen->rows,hDC,0,0,
+ SRCCOPY);
+ (void) SelectObject(bitmapDC,bitmapOld);
+
+ for (y=0; y < (ssize_t) screen->rows; y++)
+ {
+ q=QueueAuthenticPixels(screen,0,y,screen->columns,1,exception);
+ if (q == (Quantum *) NULL)
+ break;
+ for (x=0; x < (ssize_t) screen->columns; x++)
+ {
+ SetPixelRed(image,ScaleCharToQuantum(p->rgbtRed),q);
+ SetPixelGreen(image,ScaleCharToQuantum(p->rgbtGreen),q);
+ SetPixelBlue(image,ScaleCharToQuantum(p->rgbtBlue),q);
+ SetPixelAlpha(image,OpaqueAlpha,q);
+ p++;
+ q++;
+ }
+ if (SyncAuthenticPixels(screen,exception) == MagickFalse)
+ break;
+ }
+
+ DeleteDC(hDC);
+ DeleteDC(bitmapDC);
+ DeleteObject(bitmap);
+ }
+ return(image);
+}
+#endif
+
+static Image *ReadSCREENSHOTImage(const ImageInfo *image_info,ExceptionInfo *exception)
+{
+#if defined(MAGICKCORE_WINGDI32_DELEGATE)
+ return ReadWindowsSCREENSHOTImage(image_info,exception);
+#else
+ magick_unreferenced(image_info);
+ magick_unreferenced(exception);
+ return((Image *) NULL);
+#endif
+}
+\f
+/*
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %
+% %
+% %
+% R e g i s t e r S C R E E N S H O T I m a g e %
+% %
+% %
+% %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% RegisterSCREENSHOTImage() adds attributes for the screen shot format to
+% the list of supported formats. The attributes include the image format
+% tag, a method to read and/or write the format, whether the format
+% supports the saving of more than one frame to the same file or blob,
+% whether the format supports native in-memory I/O, and a brief
+% description of the format.
+%
+% The format of the RegisterScreenShotImage method is:
+%
+% size_t RegisterScreenShotImage(void)
+%
+*/
+ModuleExport size_t RegisterSCREENSHOTImage(void)
+{
+ MagickInfo
+ *entry;
+
+ entry=SetMagickInfo("SCREENSHOT");
+ entry->decoder=(DecodeImageHandler *) ReadSCREENSHOTImage;
+ entry->format_type=ImplicitFormatType;
+ entry->description=ConstantString("Screen shot");
+ entry->module=ConstantString("SCREENSHOT");
+ (void) RegisterMagickInfo(entry);
+ return(MagickImageCoderSignature);
+}
+\f
+/*
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %
+% %
+% %
+% U n r e g i s t e r S C R E E N S H O T I m a g e %
+% %
+% %
+% %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% UnregisterScreenShotImage() removes format registrations made by the
+% screen shot module from the list of supported formats.
+%
+% The format of the UnregisterSCREENSHOTImage method is:
+%
+% UnregisterSCREENSHOTImage(void)
+%
+*/
+ModuleExport void UnregisterSCREENSHOTImage(void)
+{
+ (void) UnregisterMagickInfo("SCREENSHOT");
+}
\ No newline at end of file
projects / imagemagick / commitdiff