FASTCONFIG
ppFASTCONFIG= ^pFASTCONFIG;
pFASTCONFIG= ^FASTCONFIG;
FASTCONFIG= Record
uTransferMode: L_UINT;
nFileFormat: L_INT;
ulBufferSize: L_UINT32;
uTime: L_UINT;
nBitsPerPixel: L_INT;
bSuccess: L_BOOL;
end;
The FASTCONFIG structure provides information about a scan configuration to be tested or a scan configuration that is the result of testing.
|
Member |
Description | |
|
uTransferMode |
Transfer mode for the scan configuration(s). The possible values are: | |
|
|
Value |
Meaning |
|
|
LTWAIN_FILE_MODE |
[$001] Use File transfer mode |
|
|
LTWAIN_BUFFER_MODE |
[$002] Use Memory transfer mode |
|
|
LTWAIN_NATIVE_MODE |
[$004] Use Native transfer mode |
|
nFileFormat |
The file format that will be used to save scanned images using this scan configuration. Possible values depend upon the transfer mode being used. | |
|
|
The following formats are valid when using Memory Transfer mode: | |
|
|
FILE_FAX_G4 | |
|
|
FILE_FAX_G3_2D | |
|
|
FILE_FAX_G3_1D | |
|
|
FILE_FAX_G3_1D_NOEOL | |
|
|
FILE_JBIG | |
|
|
FILE_TIF_JPEG | |
|
|
FILE_JPEG_411 | |
|
|
FILE_JPEG_422 | |
|
|
FILE_JPEG | |
|
|
FILE_TIF | |
|
|
The following formats are valid when using Native Transfer mode: | |
|
|
FILE_CCITT_GROUP4 | |
|
|
FILE_BMP | |
|
|
FILE_JPEG | |
|
|
FILE_TIF | |
|
|
The following formats are valid when using File Transfer mode: | |
|
|
TWFF_TIFF | |
|
|
TWFF_PICT | |
|
|
TWFF_BMP | |
|
|
TWFF_XBM | |
|
|
TWFF_JFIF | |
|
|
TWFF_FPX | |
|
|
TWFF_TIFFMULTI | |
|
|
TWFF_PNG | |
|
|
TWFF_SPIFF | |
|
|
TWFF_EXIF | |
|
ulBufferSize |
The buffer size that will be used with the buffer transfer mode. If this value is 0, then use the twain driver preferred buffer size. | |
|
uTime |
The amount of time required to scan the pages used for testing the scan configuration. The number of pages depends on how many pages the user loads in the scanner when testing a scan configuration. The same pages should be used for each test. | |
|
nBitsPerPixel |
Bits per pixel that will be used. | |
|
bSuccess |
Specifies whether the configuration being tested succeeded. Possible values are: | |
|
|
Value |
Meaning |
|
|
TRUE |
The current scan configuration was successful. |
|
|
FALSE |
The current scan configuration was not successful. |
Comments
pFASTCONFIG is a pointer to a FASTCONFIG structure. Where the function parameter type is pFASTCONFIG, you can declare an FASTCONFIG variable, update the structure's fields, and pass the variable's address in the parameter. Declaring a pFASTCONFIG variable is necessary only if your program requires a pointer.
FASTCONFIG is used with the FindFastConfig, GetScanConfigs and FreeScanConfig methods.