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== gflLoadBitmap ==
== gflLoadBitmap ==


The gflLoadBitmap function load a picture file into memory.  
The gflLoadBitmap function loads a picture file into memory.  


  GFL_ERROR <b>gflLoadBitmap</b>(
  GFL_ERROR <b>gflLoadBitmap</b>(
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'''Return value'''
'''Return value'''
:The function returns GFL_NO_ERROR if it is successful or a value of [[Error|GFL_ERROR]].  
:The function returns GFL_NO_ERROR if it is successful or a value of [[Error|GFL_ERROR]].  
'''Remark'''
:gflLoadBitmapW exists for the windows unicode version of GFLSDK


'''See also'''
'''See also'''
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== gflLoadBitmapFromMemory ==
== gflLoadBitmapFromMemory ==


The gflLoadBitmapFromMemory function load a picture from memory.  
The gflLoadBitmapFromMemory function loads a picture from memory.  


  GFL_ERROR <b>gflLoadBitmapFromMemory</b>(
  GFL_ERROR <b>gflLoadBitmapFromMemory</b>(
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== gflLoadBitmapFromHandle ==
== gflLoadBitmapFromHandle ==


The gflLoadBitmapFromHandle function load a picture into memory with the use of read callback functions.  
The gflLoadBitmapFromHandle function loads a picture into memory with the use of read callback functions.  


  GFL_ERROR <b>gflLoadBitmapFromHandle</b>(
  GFL_ERROR <b>gflLoadBitmapFromHandle</b>(
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== gflLoadThumbnail ==
== gflLoadThumbnail ==


The gflLoadThumbnail function load a picture file as a thumbnail into memory.  
The gflLoadThumbnail function loads a picture file as a thumbnail into memory.  


  GFL_ERROR <b>gflLoadThumbnail</b>(
  GFL_ERROR <b>gflLoadThumbnail</b>(
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'''Return value'''
'''Return value'''
:The function returns GFL_NO_ERROR if it is successful or a value of [[Error|GFL_ERROR]].  
:The function returns GFL_NO_ERROR if it is successful or a value of [[Error|GFL_ERROR]].  
'''Remark'''
:gflLoadThumbnailW exists for the windows unicode version of GFLSDK


'''See also'''
'''See also'''
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== gflLoadThumbnailFromMemory ==
== gflLoadThumbnailFromMemory ==


The gflLoadThumbnailFromMemory function load a picture file as a thumbnail from memory.  
The gflLoadThumbnailFromMemory function loads a picture file as a thumbnail from memory.  


  GFL_ERROR <b>gflLoadThumbnailFromMemory</b>(
  GFL_ERROR <b>gflLoadThumbnailFromMemory</b>(
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== gflLoadThumbnailFromHandle ==
== gflLoadThumbnailFromHandle ==


The gflLoadThumbnailFromHandle function load a picture file as a thumbnail into memory with the use of read callback functions.  
The gflLoadThumbnailFromHandle function loads a picture file as a thumbnail into memory with the use of read callback functions.  


  GFL_ERROR <b>gflLoadThumbnailFromHandle</b>(
  GFL_ERROR <b>gflLoadThumbnailFromHandle</b>(
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   GFL_INT32 height,   
   GFL_INT32 height,   
   GFL_BITMAP** bitmap,   
   GFL_BITMAP** bitmap,   
   GFL_LOAD_PARAMS* params,   
   const GFL_LOAD_PARAMS* params,   
   GFL_FILE_INFORMATION* informations,   
   GFL_FILE_INFORMATION* informations,   
  );
  );
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'''See also'''
'''See also'''
:[[#gflGetDefaultThumbnailParams|gflGetDefaultThumbnailParams]], [[#gflLoadThumbnail|gflLoadThumbnail]], [[#gflLoadThumbnailFromMemory|gflLoadThumbnailFromMemory]]
:[[#gflGetDefaultThumbnailParams|gflGetDefaultThumbnailParams]], [[#gflLoadThumbnail|gflLoadThumbnail]], [[#gflLoadThumbnailFromMemory|gflLoadThumbnailFromMemory]]


== gflGetFileInformation ==
== gflGetFileInformation ==
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'''Return value'''
'''Return value'''
:The function returns GFL_NO_ERROR if it is successful or a value of [[Error|GFL_ERROR]].  
:The function returns GFL_NO_ERROR if it is successful or a value of [[Error|GFL_ERROR]].  
'''Remark'''
:gflGetFileInformationW exists for the windows unicode version of GFLSDK


'''See also'''
'''See also'''
:[[#gflGetFileInformationFromMemory|gflGetFileInformationFromMemory]], [[#gflGetFileInformationFromHandle|gflGetFileInformationFromHandle]]
:[[#gflGetFileInformationFromMemory|gflGetFileInformationFromMemory]], [[#gflGetFileInformationFromHandle|gflGetFileInformationFromHandle]]


== gflGetFileInformationFromMemory ==
== gflGetFileInformationFromMemory ==
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  GFL_ERROR <b>gflGetFileInformationFromMemory</b>(
  GFL_ERROR <b>gflGetFileInformationFromMemory</b>(
   GFL_UINT8* data,   
   const GFL_UINT8* data,   
   GFL_UINT32 data_length,   
   GFL_UINT32 data_length,   
   GFL_INT32 index,   
   GFL_INT32 index,   
Line 292: Line 299:
'''See also'''
'''See also'''
:[[#gflGetFileInformation|gflGetFileInformation]], [[#gflGetFileInformationFromHandle|gflGetFileInformationFromHandle]]
:[[#gflGetFileInformation|gflGetFileInformation]], [[#gflGetFileInformationFromHandle|gflGetFileInformationFromHandle]]


== gflGetFileInformationFromHandle ==
== gflGetFileInformationFromHandle ==
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::Index of format. -1 for automatic recognition.  
::Index of format. -1 for automatic recognition.  
:callbacks  
:callbacks  
::Callback to access picture data.  
::Pointer to a [[Structures#GFL_LOAD_CALLBACKS|GFL_LOAD_CALLBACKS]] to access picture data.  
:information  
:information  
::Pointer to a [[Structures#GFL_FILE_INFORMATION|GFL_FILE_INFORMATION]] structure.  
::Pointer to a [[Structures#GFL_FILE_INFORMATION|GFL_FILE_INFORMATION]] structure.  
Line 322: Line 328:
'''See also'''
'''See also'''
:[[#gflGetFileInformation|gflGetFileInformation]], [[#gflGetFileInformationFromMemory|gflGetFileInformationFromMemory]]
:[[#gflGetFileInformation|gflGetFileInformation]], [[#gflGetFileInformationFromMemory|gflGetFileInformationFromMemory]]


== gflFreeFileInformation ==
== gflFreeFileInformation ==
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'''Parameters'''
'''Parameters'''


:bitmap
:information
::Pointer to a [[Structures#GFL_FILE_INFORMATION|GFL_FILE_INFORMATION]] structure.  
::Pointer to a [[Structures#GFL_FILE_INFORMATION|GFL_FILE_INFORMATION]] structure.  


'''See also'''
'''See also'''
:[[#gflLoadBitmap|gflLoadBitmap]], [[#gflLoadBitmapFromMemory|gflLoadBitmapFromMemory]], [[#gflLoadBitmapFromHandle|gflLoadBitmapFromHandle]], [[#gflGetFileInformation|gflGetFileInformation]], [[#gflGetFileInformationFromHandle|gflGetFileInformationFromHandle]], [[#gflGetFileInformationFromMemory|gflGetFileInformationFromMemory]]
:[[#gflLoadBitmap|gflLoadBitmap]], [[#gflLoadBitmapFromMemory|gflLoadBitmapFromMemory]], [[#gflLoadBitmapFromHandle|gflLoadBitmapFromHandle]], [[#gflGetFileInformation|gflGetFileInformation]], [[#gflGetFileInformationFromHandle|gflGetFileInformationFromHandle]], [[#gflGetFileInformationFromMemory|gflGetFileInformationFromMemory]]
[[Category: GFLSDK Reference Manual]]

Latest revision as of 18:19, 27 April 2010

gflGetDefaultLoadParams

The gflGetDefaultLoadParams function sets the GFL_LOAD_PARAMS structure with default values. Must be called before gflLoadBitmap*. 

void gflGetDefaultLoadParams(
  GFL_LOAD_PARAMS* load_params
);

Parameters

load_params
Pointer to a GFL_LOAD_PARAMS structure.

See also

gflGetDefaultThumbnailParams, gflLoadBitmap, gflLoadBitmapFromHandle, gflLoadBitmapFromMemory


gflLoadBitmap

The gflLoadBitmap function loads a picture file into memory. 

GFL_ERROR gflLoadBitmap(
  const char* filename,  
  GFL_BITMAP** bitmap,  
  const GFL_LOAD_PARAMS* params,  
  GFL_FILE_INFORMATION * informations
);

Parameters

filename
Pointer to a null-terminated string that contains the filename to load.
bitmap
Address of a pointer to a GFL_BITMAP structure.
params
Pointer to a GFL_LOAD_PARAMS structure.
This structure must be filled correctly.
informations
Pointer to a GFL_FILE_INFORMATION structure. Can be NULL if you don't want it.
You must use gflFreeFileInformation to free his content.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

Remark

gflLoadBitmapW exists for the windows unicode version of GFLSDK

See also

gflGetDefaultLoadParams, gflLoadBitmapFromMemory, gflLoadBitmapFromHandle

gflLoadBitmapFromMemory

The gflLoadBitmapFromMemory function loads a picture from memory. 

GFL_ERROR gflLoadBitmapFromMemory(
  const GFL_UINT8* data,  
  GFL_UINT32 data_length,  
  GFL_BITMAP** bitmap,  
  const GFL_LOAD_PARAMS* params,  
  GFL_FILE_INFORMATION* informations,  
);

Parameters

data
Pointer to the picture.
data_length
Length of data.
bitmap
Address of a pointer to a GFL_BITMAP structure.
params
Pointer to a GFL_LOAD_PARAMS structure.
This structure must be filled correctly.
informations
Pointer to a GFL_FILE_INFORMATION structure. Can be NULL if you don't want it.
You must use gflFreeFileInformation to free his content.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

See also

gflGetDefaultLoadParams, gflLoadBitmap, gflLoadBitmapFromHandle

gflLoadBitmapFromHandle

The gflLoadBitmapFromHandle function loads a picture into memory with the use of read callback functions. 

GFL_ERROR gflLoadBitmapFromHandle(
  GFL_HANDLE handle,  
  GFL_BITMAP** bitmap,  
  const GFL_LOAD_PARAMS* params,  
  GFL_FILE_INFORMATION* informations,  
);

Parameters

handle
User handle. The Callbacks field of the GFL_LOAD_PARAMS structure must be filled correctly.
bitmap
Address of a pointer to a GFL_BITMAP structure.
params
Pointer to a GFL_LOAD_PARAMS structure.
This structure must be filled correctly.
informations
Pointer to a GFL_FILE_INFORMATION structure. Can be NULL if you don't want it.
You must use gflFreeFileInformation to free his content.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

See also

gflGetDefaultLoadParams, gflLoadBitmap, gflLoadBitmapFromMemory

gflGetDefaultThumbnailParams

The gflGetDefaultThumbnailParams function sets the GFL_LOAD_PARAMS structure with default values. Must be called before gflGetDefaultThumbnail*. 

void gflGetDefaultThumbnailParams(
  GFL_LOAD_PARAMS* load_params
);

Parameters

load_params
Pointer to a GFL_LOAD_PARAMS structure.

See also

gflGetDefaultLoadParams, gflLoadThumbnail, gflLoadThumbnailFromHandle, gflLoadThumbnailFromMemory


gflLoadThumbnail

The gflLoadThumbnail function loads a picture file as a thumbnail into memory. 

GFL_ERROR gflLoadThumbnail(
  const char* filename,  
  GFL_INT32 width,  
  GFL_INT32 height,  
  GFL_BITMAP** bitmap,  
  const GFL_LOAD_PARAMS* params,  
  GFL_FILE_INFORMATION* informations,  
);

Parameters

filename
Pointer to a null-terminated string that contains the filename to load.
width
Width of the thumbnail.
height
Height of the thumbnail.
bitmap
Address of a pointer to a GFL_BITMAP structure.
params
Pointer to a GFL_LOAD_PARAMS structure.
This structure must be filled correctly.
informations
Pointer to a GFL_FILE_INFORMATION structure. Can be NULL if you don't want it.
You must use gflFreeFileInformation to free his content.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

Remark

gflLoadThumbnailW exists for the windows unicode version of GFLSDK

See also

gflGetDefaultThumbnailParams, gflLoadThumbnailFromHandle, gflLoadThumbnailFromMemory

gflLoadThumbnailFromMemory

The gflLoadThumbnailFromMemory function loads a picture file as a thumbnail from memory. 

GFL_ERROR gflLoadThumbnailFromMemory(
  const GFL_UINT8* data,  
  GFL_UINT32 data_length,  
  GFL_INT32 width,  
  GFL_INT32 height,  
  GFL_BITMAP** bitmap,  
  const GFL_LOAD_PARAMS* params,  
  GFL_FILE_INFORMATION* informations,  
);

Parameters

data
Pointer to the picture.
data_length
Length of data.
width
Width of the thumbnail.
height
Height of the thumbnail.
bitmap
Address of a pointer to a GFL_BITMAP structure.
params
Pointer to a GFL_LOAD_PARAMS structure.
This structure must be filled correctly.
informations
Pointer to a GFL_FILE_INFORMATION structure. Can be NULL if you don't want it.
You must use gflFreeFileInformation to free his content.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

See also

gflGetDefaultThumbnailParams, gflLoadThumbnail, gflLoadThumbnailFromHandle

gflLoadThumbnailFromHandle

The gflLoadThumbnailFromHandle function loads a picture file as a thumbnail into memory with the use of read callback functions. 

GFL_ERROR gflLoadThumbnailFromHandle(
  GFL_HANDLE handle,  
  GFL_INT32 width,  
  GFL_INT32 height,  
  GFL_BITMAP** bitmap,  
  const GFL_LOAD_PARAMS* params,  
  GFL_FILE_INFORMATION* informations,  
);

Parameters

handle
User handle. The Callbacks field of the GFL_LOAD_PARAMS structure must be filled correctly.
width
Width of the thumbnail.
height
Height of the thumbnail.
bitmap
Address of a pointer to a GFL_BITMAP structure.
params
Pointer to a GFL_LOAD_PARAMS structure.
This structure must be filled correctly.
informations
Pointer to a GFL_FILE_INFORMATION structure. Can be NULL if you don't want it.
You must use gflFreeFileInformation to free his content.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

See also

gflGetDefaultThumbnailParams, gflLoadThumbnail, gflLoadThumbnailFromMemory

gflGetFileInformation

The gflGetFileInformation function retrieves all informations about a picture file. 

GFL_ERROR gflGetFileInformation(
  const char* filename,  
  GFL_INT32 index,  
  GFL_FILE_INFORMATION* information
);

Parameters

filename
Pointer to a null-terminated string that contains the filename.
index
Index of format. -1 for automatic recognition.
information
Pointer to a GFL_FILE_INFORMATION structure.
You must use gflFreeFileInformation to free his content.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

Remark

gflGetFileInformationW exists for the windows unicode version of GFLSDK

See also

gflGetFileInformationFromMemory, gflGetFileInformationFromHandle

gflGetFileInformationFromMemory

The gflGetFileInformationFromMemory function retrieves all informations about a picture from memory. 

GFL_ERROR gflGetFileInformationFromMemory(
  const GFL_UINT8* data,  
  GFL_UINT32 data_length,  
  GFL_INT32 index,  
  GFL_FILE_INFORMATION* information
);

Parameters

data
Pointer to the picture.
data_length
Length of data.
index
Index of format. -1 for automatic recognition.
information
Pointer to a GFL_FILE_INFORMATION structure.
You must use gflFreeFileInformation to free his content.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

See also

gflGetFileInformation, gflGetFileInformationFromHandle

gflGetFileInformationFromHandle

The gflGetFileInformationFromHandle function retrieves all informations about a picture with the use of read callback functions. 

GFL_ERROR gflGetFileInformationFromHandle(
  GFL_HANDLE handle,  
  GFL_INT32 index,  
  const GFL_LOAD_CALLBACKS* callbacks,  
  GFL_FILE_INFORMATION* information
);

Parameters

handle
User handle.
index
Index of format. -1 for automatic recognition.
callbacks
Pointer to a GFL_LOAD_CALLBACKS to access picture data.
information
Pointer to a GFL_FILE_INFORMATION structure.
You must use gflFreeFileInformation to free his content.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

See also

gflGetFileInformation, gflGetFileInformationFromMemory

gflFreeFileInformation

The gflFreeFileInformation function frees the content of a GFL_FILE_INFORMATION structure. 

void gflFreeFileInformation(
  GFL_FILE_INFORMATION* information
);

Parameters

information
Pointer to a GFL_FILE_INFORMATION structure.

See also

gflLoadBitmap, gflLoadBitmapFromMemory, gflLoadBitmapFromHandle, gflGetFileInformation, gflGetFileInformationFromHandle, gflGetFileInformationFromMemory
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