| | |
| Constant | Affects | Used by the functions |
|---|
| tsLoaded | The Twain manager is loaded | TwainState |
| tsUnloaded | The Twain manager is not loaded |
| tsOpen | The Twain manager is opened |
| tsSourceEnabled | The source is enabled |
| tsSourceOpen | The source is opened |
| tsSourceReady | The source is ready to transfer data |
| tsSourceTransfer | The source is currently transferring data. |
 Versions 20 and laterTwainBitsByPixel New in version 20TwainBitsByPixel | Property of the Twain device: Number of bits per pixel. | TwainProperty |
Versions 20 and laterTwainBrightness New in version 20TwainBrightness TwainBrightness | Property of the Twain device: Brightness of the device. | TwainProperty |
Versions 20 and laterTwainFeederEnabled New in version 20TwainFeederEnabled TwainFeederEnabled | Property of the Twain device: Management mode of feeder. | TwainProperty |
Versions 20 and laterTwainContrast New in version 20TwainContrast TwainContrast | Property of the Twain device: Contrast of the Twain device. | TwainProperty |
Versions 20 and laterTwainBorderDetectionEnabled New in version 20TwainBorderDetectionEnabled TwainBorderDetectionEnabled | Property of the Twain device: Detection mode of borders. | TwainProperty |
Versions 20 and laterTwainBarCodeDetectionEnabled New in version 20TwainBarCodeDetectionEnabled TwainBarCodeDetectionEnabled | Property of the Twain device: Detection mode of bar codes. | TwainProperty |
Versions 20 and laterTwainHeight New in version 20TwainHeight TwainHeight | Property of the Twain device: Maximum height (in millimeters). | TwainProperty |
Versions 20 and laterTwainInterfaceControllable New in version 20TwainInterfaceControllable TwainInterfaceControllable | Property of the Twain device: Management mode of user interface. | TwainProperty |
Versions 20 and laterTwainWidth New in version 20TwainWidth TwainWidth | Property of the Twain device: Maximum width (in millimeters) | TwainProperty |
| TwainGrayScale | Retrieves the image in grayscale | TwainToBMP,
TwainToControl,
TwainToGIF,
TwainToJPEG,
TwainToPDF
TwainToClipboard
TwainToTIFF |
| TwainBlackWhite | Retrieves the image in black and white | TwainToBMP,
TwainToControl,
TwainToGIF,
TwainToJPEG,
TwainToPDF
TwainToClipboard
TwainToTIFF |
| TwainPalette | Retrieves the image using colors from a palette (1 , 4 or 8 bits per pixel) | TwainToBMP,
TwainToControl,
TwainToGIF,
TwainToJPEG,
TwainToPDF
TwainToClipboard
TwainToTIFF |
Versions 20 and laterTwainReady New in version 20TwainReady TwainReady | Property of the Twain device: Status of the device. | TwainProperty |
Versions 20 and laterTwainDuplex New in version 20TwainDuplex TwainDuplex | Property of the Twain device: Support for double side. | TwainProperty |
Versions 20 and laterTwainDuplexEnabled New in version 20TwainDuplexEnabled TwainDuplexEnabled | Property of the Twain device: Management mode of double side. | TwainProperty |
Versions 20 and laterTwainAutoResizeEnabled New in version 20TwainAutoResizeEnabled TwainAutoResizeEnabled | Property of the Twain device: Management mode of automatic resize. | TwainProperty |
Versions 20 and laterTwainAutoDeskewEnabled New in version 20TwainAutoDeskewEnabled TwainAutoDeskewEnabled | Property of the Twain device: Management mode of automatic image deskew. | TwainProperty |
Versions 20 and laterTwainResolution New in version 20TwainResolution TwainResolution | Property of the Twain device: Resolution in pixels per inch. | TwainProperty |
Versions 20 and laterTwainAutoRotationEnabled New in version 20TwainAutoRotationEnabled TwainAutoRotationEnabled | Property of the Twain device: Management mode of image rotation | TwainProperty |
| TwainRGB | Retrieves the RGB image (24 bits per pixel) | TwainToBMP,
TwainToControl,
TwainToGIF,
TwainToJPEG,
TwainToPDF
TwainToClipboard
TwainToTIFF |
Versions 20 and laterTwainBlankPageSkipEnabled New in version 20TwainBlankPageSkipEnabled TwainBlankPageSkipEnabled | Property of the Twain device: Management mode of blank pages | TwainProperty |
| TwainAnyType | Retrieves any type of image | TwainToBMP,
TwainToControl,
TwainToGIF,
TwainToJPEG,
TwainToPDF
TwainToClipboard
TwainToTIFF |
Versions 20 and laterTwainType New in version 20TwainType TwainType | Property of the Twain device: Type of supported images. | TwainProperty |