Value

Meaning

INVERTEDTEXT_SINGLE_REGION:

For each inverted text segment found by the InvertedText method, if the DocCleanSuccess property is set to SUCCESS_REMOVE, the inverted text is added to an internal single region. If the DocCleanSuccess property is set to SUCCESS_NOREMOVE, the inverted text is not added to the single region. When the InvertedText method returns, either the DocCleanBitmap property or the hDocCleanRgn property will reference a region that contains all the corrected inverted text. If INVERTEDTEXT_LEAD_REGION is also set, the DocCleanBitmap property will be updated with a bitmap that has a LEAD region that contains all the corrected inverted text. If INVERTEDTEXT_LEAD_REGION is not set, hDocCleanRgn is updated with a Windows region that contains all the corrected inverted text. When the region (either LEAD or Windows) is no longer needed, it must be destroyed.

INVERTEDTEXT_LEAD_REGION

When the InvertedText method returns, the DocCleanBitmap property is updated with a bitmap that also contains a region with all the corrected inverted text. This flag must be used in conjunction with INVERTEDTEXT_SINGLE_REGION. To use this flag set uFlags to INVERTEDTEXT_SINGLE_REGION | INVERTEDTEXT_LEAD_REGION. The DocCleanBitmap property will be updated when the InvertedText method returns.

INVERTEDTEXT_IMAGE_UNCHANGED

The original image is unchanged.

INVERTEDTEXT_USE_DPI

The unit of measure for all parameters of this method is thousandths of an inch. Use the image's DPI to convert to pixels. This allows the processing of many images with different DPI. If this flag is not set, the unit of measure is pixels.

INVERTEDTEXT_CALLBACK_REGION

The InvertedText event receives a Windows region that contains the current inverted text to be inverted. Setting this flag lets the user create his or her own composite of inverted text by combining the regions received by the InvertedText event, if the event returns SUCCESS_REMOVE. The regions can be combined using a logical OR operator. Combining all regions received by the event, that are removed, results in a region identical to the region created when INVERTEDTEXT_SINGLE_REGION is set in uFlags. When the region received by the event is no longer needed, it must be destroyed.

INVERTEDTEXT_USE_DIAGONALS

Considers pixels that are diagonal to the inverted text as part of the inverted text.