Twain

_Acquire, _SelectTwainSource, Acquire, AcquireEx

Acquire

Interactive command to this function: File > Import/Export > TWAIN

Description

 Acquire(
   char *Twain_Source,
   double  Twain_XPos,
   double  Twain_YPos,
   double  Twain_Width,
   int  Twain_Landscape,
   int  Twain_Reference
);

This function scans an image in the given rectangle and transfers it to the current or OK reference image.

Parameters

char *Twain_Source

Name of TWAIN device.

double Twain_XPos

X offset in pixels. Origin is upper left corner of original image.

double Twain_YPos

Y offset in pixels. Origin is upper left corner of original image.

double Twain_Width

Width of the image in pixels. Use -1 for default.

int Twain_Landscape

Specifies if the image is rotated after scanning.

0	Image is not rotated after scanning by 90 degrees.
1	Image is rotated after scanning by 90 degrees if its height is bigger than its width.

int Twain_Reference

Specifies If the image is transferred, to current or reference image.

0	To current image.
1	To reference image.

See Also
AcquireEx, _Acquire

AcquireEx

Description

 AcquireEx(
   char *Twain_Source,
   double  Twain_XPos,
   double  Twain_YPos,
   double  Twain_Width,
   double  Twain_Height,
   int  Twain_Resolution,
   int  Twain_BitsPerComponent,
   int  Twain_Gray,
   int  Twain_Landscape,
   int  Twain_Reference,
   char *DocumentName
);

This function scans an image in the given rectangle and transfers it to the current or reference image.

Parameters

char *Twain_Source

Name of TWAIN device.

double Twain_XPos

X offset in pixels. Origin is upper left corner of original image.

double Twain_YPos

Y offset in pixels. Origin is upper left corner of original image.

double Twain_Width

Width of the image in pixels. Use -1 for default.

double Twain_Height

Height of the image in pixels. Use -1 for default.

int Twain_Resolution

Resolution in dots per inch (DPI) of acquired image. If -1, default is used.

0	To current image.
1	To reference image.

int Twain_BitsPerComponent

Bit depth of acquired image. If -1, default is used. Note, that most scanners does not support other bit depths than 8 bit per component.

int Twain_Gray

Specifies if acquired image is gray-scale or not.

0	Image is RGB.
1	Image is gray-scale.

int Twain_Landscape

Specifies if the image is rotated after scanning.

0	Image is not rotated after scanning by 90 degrees.
1	Image is rotated after scanning by 90 degrees if its height is bigger than its width.

int Twain_Reference

Specifies If the image is transferred, to current or reference image.

0	To current image.
1	To reference image.

char *DocumentName

Name of the image (displayed in the image caption).

See Also
Acquire, _Acquire, Acquire

_Acquire

This function runs the File > Import/Export > TWAIN command.

Description

 _Acquire();

Opens the Scan Setup dialog window.

This function is supported only in NIS-Elements 32-bit.

_SelectTwainSource

This function runs the File > Import/Export > Select Source command.

Description

 _SelectTwainSource();

This function displays dialog box with all available twain sources.

Note

This function displays dialog box with all available twain sources. Term twain source means standard interface to acquire images from scanner, digital cameras etc.

See Also
Acquire, AcquireEx

Twain🔗

Note

Twain