DMImageIO
The DMImageIO class is a utility class that provides functionality for reading and saving images.
Definition
Namespace: Dynamsoft.Utility.Maui
Assembly: Dynamsoft.Utility.Maui
class DMImageIO
Methods
| Method | Description |
|---|---|
ReadFromFile |
Reads an image from the specified path and format. |
ReadFromMemory |
Reads an image from the memory. |
SaveToFile |
Saves an image to the specified path and format. |
SaveToMemory |
Saves an image to the memory. |
ReadFromFile
Read an image from file with the file path
ImageData? ReadFromFile(string path);
Parameters
[in] path: The file path.
Return Value
The read image data of type ImageData.
ReadFromMemory
Reads an image from the memory.
partial ImageData? ReadFromMemory(byte[] imageFileBytes);
Parameters
[in] imageFileBytes: The image bytes.
Return Value
The image data of type ImageData.
Exception
| Error Code | Value | Description |
|---|---|---|
| EC_NULL_POINTER | -10002 | The fileBytes you input is null. |
- Introduced in Dynamsoft Barcode Reader SDK version 11.2.3000 and Dynamsoft Capture Vision version 3.2.3000.
SaveToFile
Saves an image to the specified path and format. The desired file format is inferred from the file extension provided in the path parameter.
void SaveToFile(ImageData imageData, string path, bool overWrite);
Parameters
[in] imageData: The image to be saved, of type ImageData.
[in] path: The file path, name and extension name, as a string, under which the image will be saved.
[in] overWrite: A flag indicating whether to overwrite the file if it already exists. Defaults to true.
Exception
| Error Code | Value | Description |
|---|---|---|
| EC_NULL_POINTER | -10002 | The ImageData object is null. |
| EC_FILE_TYPE_NOT_SUPPORTED | -10006 | The file type is not supported. |
| EC_FILE_ALREADY_EXISTS | -10067 | The file already exists but overwriting is disabled. |
| EC_CREATE_FILE_FAILED | -10068 | The file path does not exist but cannot be created, or the file cannot be created for any other reason. |
| EC_IMGAE_DATA_INVALID | -10069 | The input ImageData object contains invalid parameter(s). |
Return Value
A boolean value that indicates whether the file is saved successfully.
SaveToMemory
Saves an image to the memory.
partial byte[]? SaveToMemory(ImageData imageData, EnumImageFileFormat imageFileFormat);
Parameters
[in] imageData: The image to be saved, of type ImageData.
[in] imageFileFormat: The image format.
Return Value
The image bytes.
Exception
| Error Code | Value | Description |
|---|---|---|
| EC_NULL_POINTER | -10002 | The ImageData object is null. |
| EC_IMGAE_DATA_INVALID | -10069 | The input ImageData object contains invalid parameter(s). |
- Introduced in Dynamsoft Barcode Reader SDK version 11.2.3000 and Dynamsoft Capture Vision version 3.2.3000.
Yes
No