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Chapter23-InformationQueryFunctions
Variable
Description
StrName
Pointertoastringtoreceivethenameorauthorfromthe
lastimagedecompressed
StrDate
Pointertoastringtoreceivethedatefromthelastimage
decompressed
Returns
Returnsthetextstringfromtheimage.AnyvaluelessthanzeroisaSnowbounderrorcode.
SeeAppendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
Example23.3CIMGLOW_get_bitmap_name
C#:simage.CIMGLOW_get_bitmap_name(ref strBMName, ref
strDateInfo);
CIMGLOW_get_custstring()
ThisfunctionreturnsastringstoredinRasterMaster.NET.Thenameofthecorporation
licensedtousethisproductisembeddedinRasterMaster.NETbySnowboundSoftware.This
allowsdetectionoftheDLLorOCXtoensurethattheuserhasthecorrectversion.
Syntax
int SNBDAPI CIMGLOW_get_custstring(String *custstring);
Remark
Table23.13:CIMGLOW_get_custstringFunctionVariable
Variable
Description
custstring
Pointertostringinwhichtostorecustomstringdata
Returns
ReturnsthestringstoredinRasterMaster.NET.AnyvaluelessthanzeroisaSnowbounderror
code.SeeAppendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
CIMGLOW_get_fileinfo()
Thisfunctiongetsimageinformationbyfillinginthelpbihstructurecontainingheight,width
andbitsperpixelfortheimage.Thisstructureshouldbeallocatedlargeenoughtofitthesizeof
thelpbihstructure(40bytes).
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Chapter23-InformationQueryFunctions
Syntax
int SNBDAPI CIMGLOW_get_fileinfo(String *filename, CDIB_HEADER
*dib_header);
Remark
Table23.14:CIMGLOW_get_fileinfoFunctionVariables
Variable
Description
filename
Anyvalidexistingimageonthedisk
dib_header
PointertoaCDIB_HEADERstructure.Formore
information,seepublic
class
CDIB_
HEADER
.
Returns
Returnstheimageinformation.AnyvaluelessthanzeroisaSnowbounderrorcode.See
Appendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
CIMGLOW_get_fileinfo_fd()
Thisfunctionreadsandreturnsthefileheaderinformationfromtheimagefileandspecificpage
numberpassedin.ItfillsintheDIB_HEADERstructurewithwidth,height,dpiandbitsperpixel.
Syntax
int SNBDAPI CIMGLOW_get_fileinfo_fd_(FileStream *filestream,
CDIBHEADER *dib_header);
Remark
Table23.15:CIMGLOW_get_fileinfo_fdFunctionVariables
Variable
Description
filestream
PointertoFileStreamobject
dib_header
PointertoaCDIB_HEADERstructureinwhichtofill.For
moreinformation,seepublic
class
CDIB_
HEADER
.
Returns
Returnsthestatusofthefileheaderinformationoperation.Avalueof0indicatessuccess.Any
valuelessthanzeroisaSnowbounderrorcode.SeeAppendix
H,
Snowbound
Error
Codes
for
alistoferrorcodes.
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Chapter23-InformationQueryFunctions
CIMGLOW_get_fileinfo_page()
Thisfunctionreadsandreturnsthefileheaderinformationfromtheimagefileandspecificpage
numberpassedin.ItfillsintheDIB_HEADERstructurewithwidth,height,dpiandbitsperpixel.
Syntax
int SNBDAPI CIMGLOW_get_fileinfo_page(String *filename, CDIBHEADER
*dib_header, int page);
Remark
Table23.16:CIMGLOW_get_fileinfo_pageFunctionVariables
Variable
Description
filename
Imagepathandfilename
dib_header
PointertoaCDIB_HEADERstructureinwhichtofill.For
moreinformation,seepublic
class
CDIB_
HEADER
.
page
Pagenumberstartsat0
Returns
Returnsthefileinformation.AnyvaluelessthanzeroisaSnowbounderrorcode.SeeAppendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
CIMGLOW_get_fileinfo_fd()
Thisfunctionreadsandreturnsthefileheaderinformationfromtheimagefilepassedin.Itfills
intheDIB_HEADERstructurewithwidth,height,DPI,andbitsperpixel.
Syntax
int SNBDAPI CIMGLOW_get_fileinfo_fd(FileStream *filestream, CDIB_
HEADER *dib_header);
Remark
Table23.17:CIMGLOW_get_fileinfo_fdFunctionVariables
Variable
Description
filestream
HandlereturnedfromaWindowsOpenFile()call
dib_header
PointertoaCDIB_HEADERstructureinwhichtofill.For
moreinformation,seepublic
class
CDIB_
HEADER
.
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Chapter23-InformationQueryFunctions
Returns
Returnsthestatusofthefileheaderinformationoperation.Avalueof0indicatessuccess.Any
valuelessthanzeroisaSnowbounderrorcode.SeeAppendix
H,
Snowbound
Error
Codes
for
alistoferrorcodes.
CIMGLOW_get_filetype()
Thisfunctionreturnsthefiletypeasdefinedinimglib.h.
Syntax
int SNBDAPI CIMGLOW_get_filetype(String *filename);
Remark
Table23.18:CIMGLOW_get_filetypeFunctionVariable
Variable
Description
filename
Path/filenameofimagetoreturnfiletype
Returns
Returnsthefiletypeasdefinedintheimagelibrary(imgelib.h).Forexample,aWordfilewould
returnthefiletypenumber86.Foralistoffiletypenumbers,pleaseseeAppendix
B,
Supported
File
Formats
.AnyvaluelessthanzeroisaSnowbounderrorcode.SeeAppendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
CIMGLOW_get_filetype_fd()
Thisfunctionreturnsthefiletypesasdefinedinimglib.hforthefilehandleoftheimage
currentlyopen.
Theregulardecompressbitmapstartsatthebeginningofthefile,positionzero.Iftheimageyou
wanttoopenisembeddedinafile,useCIMG_
decompress_
_
bitmap_
fd
toopenthecontentat
thecurrentpositionwithoutrewindingtothebeginningofthefile.
Syntax
int SNBDAPI CIMGLOW_get_filetype_fd(FileStream *filestream);
Remark
Table23.19:CIMGLOW_get_filetype_fdFunctionVariable
Variable
Description
filestream
FilehandleobtainedfromOpenFile()or_lopen()
Windowscall
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Chapter23-InformationQueryFunctions
Returns
Returnsthefiletypeasdefinedintheimagelibrary(imgelib.h).Forexample,aWordfilewould
returnthefiletypenumber86.Foralistoffiletypenumbers,pleaseseeAppendix
B,
Supported
File
Formats
.AnyvaluelessthanzeroisaSnowbounderrorcode.SeeAppendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
CIMGLOW_get_filetype_mem()
Thisfunctiongetsthefiletypenumberoftheimagestoredinmemoryatthelocationpointedto
bythefilenamepointer.
Syntax
int SNBDAPI CIMGLOW_get_filetype_mem(Array *data);
Remark
Table23.20:CIMGLOW_get_filetype_memFunctionVariable
Variable
Description
data
Pointertoimageinmemory
Returns
Returnsthestandardlibraryimagehandle.Forexample,aWordfilewouldreturnthefiletype
number86.Foralistoffiletypenumbers,pleaseseeAppendix
B,
Supported
File
Formats
.Any
valuelessthanzeroisaSnowbounderrorcode.SeeAppendix
H,
Snowbound
Error
Codes
for
alistoferrorcodes.
CIMGLOW_get_filetype_url()
ThisfunctiongetsthefiletypenumberoftheimagestoredinthegivenUniformResource
Locator(URL)address.
Syntax
int SNBDAPI CIMGLOW_get_filetype_url(String *strURL);
Remark
Table23.21:CIMGLOW_get_filetype_urlFunctionVariable
Variable
Description
strURL
TheURLaddresstopointtotheimage
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Chapter23-InformationQueryFunctions
Returns
ReturnsthefiletypenumberoftheimagestoredinthegivenURLaddress.Forexample,a
Wordfilewouldreturnthefiletypenumber86.Foralistoffiletypenumbers,pleasesee
Appendix
B,
Supported
File
Formats
.AnyvaluelessthanzeroisaSnowbounderrorcode.See
Appendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
CIMGLOW_get_image_orientation_page()
Thisfunctionreturnstherotationangleforthefilenameandpagespecified.Itisusedtogetthe
orientationofimagesinmulti-pagefileformats.ItreturnsthesamevaluesasCIMGLOW_get_
image_orientation().
Syntax
int SNBDAPI CIMGLOW_get_image_orientation_page(String *filename,
int page);
Remark
Table23.22:CIMGLOW_get_image_orientation_pageFunctionVariables
Variable
Description
filename
Path/filenameofimagetoreturnorientationinformation
page
Pagenumbertoreturnorientation
Returns
Returnstherotationangleforthefilenameandpagespecified.Anyvaluelessthanzeroisa
Snowbounderrorcode.SeeAppendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
CIMGLOW_get_pages()
Thisfunctionreturnsthenumberofpagesforamulti-pagefile.Ifthefileisnotofthemulti-page
variety(suchasTIFF,.DCX,PDF,orMO:DCA:IOCA)thefunctionreturns1.Itsupports
unicodefilenameinput.
YoucanfindthesamplesforusingthisfunctioninthefollowingdirectoryC:\Program
Files\Snowbound Software\RasterMaster® .NET Evaluation\Net\Samples.
Thisfunctionisusedinthefollowingsamples:
l
ASP
Multiple
Pages
l
Convert_
Doc
l
Page
156
Chapter23-InformationQueryFunctions
l
Scan
l
Split
to
Multiple
Pages
l
Text
Search
l
Thumbnail
l
WPFAnnotation_
CSHARP
l
WPFConversion_
CSHARP
l
WPFScanning_
CSHARP
Syntax
int SNBDAPI CIMGLOW_get_pages(String *filename);
Remark
Table23.23:CIMGLOW_get_pagesFunctionVariable
Variable
Description
filename
Path/filenameofimagetoreturnpageinformation
Returns
Returnsthenumberofpagesforamulti-pagefile.Avalueof0or1indicatessuccess.Any
valuelessthanzeroisaSnowbounderrorcode.SeeAppendix
H,
Snowbound
Error
Codes
for
alistoferrorcodes.
CIMGLOW_get_pages_fd()
Thisfunctionreturnsthenumberofpagesforamulti-pagefile.Ifthefileisnotofthemulti-page
variety(suchasTIFForMO:DCA:IOCA)thefunctionreturns1.
Syntax
int SNBDAPI CIMGLOW_get_pages_fd(FileStream *filestream);
Remark
Table23.24:CIMGLOW_get_pages_fdFunctionVariable
Variable
Description
filestream
HandlereturnedfromaWindowsOpenFile()call
157
Chapter23-InformationQueryFunctions
Returns
Returnsthenumberofpagesforamulti-pagefile.AnyvaluelessthanzeroisaSnowbound
errorcode.SeeAppendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
CIMGLOW_get_pages_mem()
Thisfunctionreturnsthenumberofpagesfromanimagestoredinthepointerpassedasthe
firstargument.ThisissimilartoCIMGLOW_get_pages()butisusedfortheimagestoredina
memorypointer.
Syntax
int SNBDAPI CIMGLOW_get_pages_mem(Array *data);
Remark
Table23.25:CIMGLOW_get_pages_memFunctionVariable
Variable
Description
32
Pointertoimageinmemory
Returns
Returnsthenumberofpagesfromanimagestoredinthepointerpassedasthefirstargument.
AnyvaluelessthanzeroisaSnowbounderrorcode.SeeAppendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
CIMGLOW_get_pages_url()
ThisfunctionreturnsthenumberofpagesfromanimagestoredinthegivenUniformResource
Locator(URL)address.
YoucanfindthesamplesforusingthisfunctioninthefollowingdirectoryC:\Program
Files\Snowbound Software\RasterMaster® .NET Evaluation\Net\Samples.
ThisfunctionisusedintheWeb
Image
Viewer
Component
sample.
Syntax
int SNBDAPI CIMGLOW_get_pages_url(String *strURL);
Remark
Table23.26:CIMGLOW_get_pages_urlFunctionVariable
Variable
Description
strURL
TheURLaddresstopointtotheimage.
158
Chapter23-InformationQueryFunctions
Example23.4CIMGLOW_get_pages_url
status =
simage.CIMGLOWLOW_get_pages_url
("http://www.snowbound.com/images/HomeBanner0.jpg");
status=
simage.CIMGLOWLOW_get_pages_url
("http://localhost/images/test.pdf");
Returns
ReturnsthenumberofpagesfromanimagestoredinthegivenURLaddress.Anyvalueless
thanzeroisaSnowbounderrorcode.SeeAppendix
H,
Snowbound
Error
Codes
foralistof
errorcodes.
CIMGLOW_get_tiff_tag()
ThisfunctionreadsaTIFFtagfromthefilespecifiedbybm_name.Thetagmaybeeithera
stringreturnedinbufforalong,int,orcharreturnedinvalue.
Ifthereturnvalueis1,thevaluereturnedisastring.Areturnvalueof0indicatesanon-string
value.
YoucanfindthesamplesforusingthisfunctioninthefollowingdirectoryC:\Program
Files\Snowbound Software\RasterMaster® .NET Evaluation\Net\Samples.
ThisfunctionisusedintheTiff
Tag
sample.
int SNBDAPI CIMGLOW_get_tiff_tag(int tag, int max_bytes, int *ptr_
value, String *strFileName, String *strBuff);
Remark
Table23.27:CIMGLOW_get_tiff_tagFunctionVariables
Variable
Description
tag
TIFFtagnumbertoreturn
max_bytes
Maximumbytestoreadforstringtags
ptr_value
Pointertotagvaluereturned
strFileName
Filenametoreadtagsfrom
strBuff
Stringbufferforreturningstringtags
Returns
Returnsastringoranon-stringvalue.AnyvaluelessthanzeroisaSnowbounderrorcode.See
Appendix
H,
Snowbound
Error
Codes
foralistoferrorcodes.
159
Chapter23-InformationQueryFunctions
YoucanusetheTIFFtagtogetthecolorspacetypebyspecifyingtag#262.
Valueiswhatisreturned.Forthistagyouwillnotneedthebytearray.
Example23.5CIMGLOW_get_tiff_tag
int tag_no = 262;
int max_bytes = 0;
int[] value = new int[1];
byte[] data = null;
myFrame.Simage.CIMGLOW_get_tiff_tag(tag_no, max_bytes, value,
st,
data, page);
/* PHOTOMETRIC INTERPRETATION */
#define TIFF_PHOTO_WHITE_IS0 0
#define TIFF_PHOTO_WHITE_IS1 1
#define TIFF_PHOTO_RGB 2
#define TIFF_PHOTO_PALETTE 3
#define TIFF_PHOTO_TRANSP 4
#define TIFF_PHOTO_CMYK 5
#define TIFF_PHOTO_YCC 6
#define TIFF_PHOTO_CIELAB 8
CIMGLOW_get_tiff_tag_page()
ThisfunctionreadsaTIFFtagfromthefilespecifiedbyfilenameandthepagespecifiedby
page.Thetagmaybeeitherastringreturnedinbufforalong,int,orcharreturnedinvalue.
Ifthereturnvalueis1,thevaluereturnedisastring.Returnvaluesof0indicatenon-string
values.
Syntax
int SNBDAPI CIMGLOW_get_tiff_tag_page(String *filename, int page,
CTIFF_TAG *tag);
Remark
Table23.28:CIMGLOW_get_tiff_tag_pageFunctionVariables
Variable
Description
filename
Path/filenameofimagetoreturnorientationinformation
page
Pagenumberfromwhichtoreadtags
tag
TIFFtagnumbertoreturn.Formoreinformation,see‘‘publicclass
CTIFF_TAG’’
160
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