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The following constants are used by the Twain functions: | | | | Constant | Description | Used by the functions |
|---|
| tsLoaded | The Twain manager is loaded | TwainState | | 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. | | tsUnloaded | The Twain manager is not loaded | | TwainAnyType | Retrieves any type of image | TwainToBMP,
TwainToControl,
TwainToGIF,
TwainToJPEG,
TwainToPDF
TwainToClipboard
TwainToTIFF | | TwainAutoDeskewEnabled | Twain device properties: Automatic image straightening management mode. | TwainProperty | | TwainAutoResizeEnabled | Twain device properties: Automatic resizing management mode. | TwainProperty | | TwainAutoRotationEnabled | Twain device properties: Image rotation management mode | TwainProperty | | TwainBarCodeDetectionEnabled | Twain device properties: Strikethrough detection mode. | TwainProperty | | TwainBitsByPixel | Twain device property: Number of bits per pixel. | TwainProperty | | TwainBlackWhite | Retrieves the image in black and white | TwainToBMP,
TwainToControl,
TwainToGIF,
TwainToJPEG,
TwainToPDF
TwainToClipboard
TwainToTIFF | | TwainBlankPageSkipEnabled | Twain device properties: White page management mode | TwainProperty | | TwainBorderDetectionEnabled | Twain device property: Edge detection mode. | TwainProperty | | TwainBrightness | Twain device property: Device brightness. | TwainProperty | | TwainContrast | Twain device property: Twain device contrast. | TwainProperty | | TwainDuplex | Twain device properties: Duplex support. | TwainProperty | | TwainDuplexEnabled | Twain device property: Duplex management mode. | TwainProperty | | TwainFeederEnabled | Twain device property: Feeder management mode. | TwainProperty | | TwainGrayScale | Retrieves the image in grayscale | TwainToBMP,
TwainToControl,
TwainToGIF,
TwainToJPEG,
TwainToPDF
TwainToClipboard
TwainToTIFF | | TwainHeight | Twain device property: Maximum height (in millimeters). | TwainProperty | | TwainInterfaceControllable | Twain device property: User interface management mode. | TwainProperty | | TwainPalette | Retrieves the image using colors from a palette (1 , 4 or 8 bits per pixel) | TwainToBMP,
TwainToControl,
TwainToGIF,
TwainToJPEG,
TwainToPDF
TwainToClipboard
TwainToTIFF | | TwainReady | Twain device ownership: Device status. | TwainProperty | | TwainResolution | Twain device property: Resolution in pixels per inch. | TwainProperty | | TwainRGB | Retrieves the RGB image (24 bits per pixel) | TwainToBMP,
TwainToControl,
TwainToGIF,
TwainToJPEG,
TwainToPDF
TwainToClipboard
TwainToTIFF | | TwainType | Twain device property: Type of images managed. | TwainProperty | | TwainWidth | Twain device properties: Maximum width (in millimeters) | TwainProperty |
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