__init__ constructor Leave feedback
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Initializes a new PngViewOptions instance.
For the code example, see the documentation.
def __init__(self, create_page_stream):
...
| Parameter | Type | Description |
|---|---|---|
| create_page_stream | CreatePageStream |
The method that instantiates a stream used to write output page data. |
| Raises | Description |
|---|---|
ValueError |
When create_page_stream is None. |
Initializes an instance of the PngViewOptions class.
For the code example, see the documentation.
def __init__(self, create_page_stream, release_page_stream):
...
| Parameter | Type | Description |
|---|---|---|
| create_page_stream | CreatePageStream |
The method that instantiates a stream used to write output page data. |
| release_page_stream | ReleasePageStream |
The method that releases a stream created by the method assigned to the delegate passed to create_page_stream parameter. |
| Raises | Description |
|---|---|
ValueError |
When release_page_stream is None. |
Initializes a new PngViewOptions instance.
For more information, see the documentation.
def __init__(self, page_stream_factory):
...
| Parameter | Type | Description |
|---|---|---|
| page_stream_factory | IPageStreamFactory |
The factory which implements methods for creating and releasing output page stream. |
| Raises | Description |
|---|---|
ValueError |
If page_stream_factory is None. |
Initializes a PngViewOptions instance.
This constructor creates a PngViewOptions with "p_{0}.png" as the default file path format for the output files. The generated PNG files are saved in the current working directory of the application.
def __init__(self):
...
from groupdocs.viewer import Viewer
from groupdocs.viewer.options import PngViewOptions
with Viewer("document.pdf") as viewer:
viewer.view(PngViewOptions("page_{0}.png"))
Initializes a new PngViewOptions instance.
For the code example, see the documentation.
def __init__(self, file_path_format):
...
| Parameter | Type | Description |
|---|---|---|
| file_path_format | str |
The file path format, e.g. 'page_{0}.png'. |
| Raises | Description |
|---|---|
ValueError |
When file_path_format is None or empty. |
from groupdocs.viewer import Viewer
from groupdocs.viewer.options import PngViewOptions
with Viewer("document.pdf") as viewer:
viewer.view(PngViewOptions("page_{0}.png"))
- class
PngViewOptions
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