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addRegisterDownloadImage
Adds the registration of the image data to the command buffer.
The specified image data can be registered in the download graphics area of customer display, and can be called by addDownloadImage.
Syntax
public void addRegisterDownloadImage(byte[] data, int key1, int key2) throws Epos2Exception |
Parameter
data
Specifies the binary data in the png format or jpg format.
key1
Specifies keycode 1.
Value |
Description |
---|---|
Integer from 48 to 57, 65 to 90, and 97 to 122 |
Keycode 1 |
key2
Specifies keycode 2.
Value |
Description |
---|---|
Integer from 48 to 57, 65 to 90, and 97 to 122 |
Keycode 2 |
Exception
When the process fails, Epos2Exception with one of the following error value occurs.
Error status |
Description |
---|---|
ERR_PARAM |
An invalid parameter was passed. |
ERR_MEMORY |
Sufficient memory required for processing could not be allocated. |
ERR_FAILURE |
An unknown error occurred. |
Supplementary explanation
- This API cannot be used simultaneously with other APIs.
After executing this API, do not execute any other API until the callback is returned. - Execute a sendData API after each execution of this API to register images one by one.
- If Epos2Exception including the error status occurs in the sendData execution results after the execution of this API, restart the printer.
Depending on the system environment, it may take some time for the recovery process. - If the power supply to the customer display is cut off, the registered image is erased.
- As the data size of the image to be registered increases, the processing time becomes longer. (Max. 320 seconds)
- If the data size of the image to be registered is large, and the communication environment
is poor, the image may not be registered in this API.
If the image cannot be registered in this API, use a dedicated Utility software.
For details on the dedicated Utility software, refer to the Technical Reference Guide of each customer display. - If an image is registered in the specified keycode, it is overwritten and registered.
- Image data expressed in the pixel format of YCbCr422 or YCbCr420 can be used.
- The image size should be about 100 KB although the upper limit of the image size is 1.5 MB.
- Total size of images that can be registered is 1.5 MB.
This API converts the image format and pixel count so that the customer displays can process the images and then register them. The conversion processing may increase the size of images, so ensure that there is sufficient free space in the download graphics area to accommodate the total size of the images to be registered.
No error is returned when registration was not successful due to insufficient free space in the download graphics area. - When using a transmission image, use data in the png format.
- Please use an image that matches the size of the image area in the customer display.
Using an image larger than the size of the image area will cause the image to be trimmed to fit the size of the image area.
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