Difference between revisions of "API FCD.GetPathHandle"
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| − | + | {| class="wikitable" style="width:60%; background-color:#FFFFFF;" | |
| − | Gets a FCD paths handle, suitable for traversal with the Tree API | + | |- |
| + | | width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]] | ||
| + | | width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''GetPathHandle''' | ||
| + | |- | ||
| + | | colspan="2" | Gets a FCD paths handle, suitable for traversal with the Tree API | ||
| + | |- | ||
| + | |- | ||
| + | | width="10%" align="center" | [[File:Fc9-string-icon.png]] - STRING | ||
| + | | width="90%" | PathName | ||
| + | |- | ||
| + | | colspan="2" | The '.' separated path through the FCD to look in | ||
| + | |- | ||
| + | | width="10%" align="center" | [[File:Fc9-h32-icon.png]] - HANDLE | ||
| + | | width="90%" | StartPoint | ||
| + | |- | ||
| + | | colspan="2" | The handle of an existing FCD path to start the search | ||
| + | |- | ||
| + | | width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-h32-icon.png]] - HANDLE | ||
| + | | width="90%" style="border-top: 2px solid #000;" | ''Return'' | ||
| + | |} | ||
| − | == | + | ==Detailed description== |
| − | + | This will get a handle suitable for traversal by the [[API Tree|Tree]] API which is a collection of functions suitable for traversing the FCD files. | |
| − | |||
| − | |||
| − | |||
| − | |||
| − | = | + | FCD files are XML files. The ''PathName'' must be a list of items, not including the XML root tag of the tags where the XML attributes are located. So to extract a handle to the FLASH memory detailes ''Pathname''="device.memory". |
| − | |||
| − | |||
| − | + | If the ''StartPoint'' is provided then it is assumed this is a handle to a previous call to GetPathHandle, and this path is prepended to ''PathName''. So if ''StartPoint'' is a handle to "device.configuration" and ''PathName''="settings.setting" then the full path found will be "device.configuration.settings.setting". | |
| − | '' | ||
| − | + | ||
| − | + | ||
| + | ==Examples== | ||
| + | ===Calling in a calculation=== | ||
* Declare a variable 'result' of type HANDLE | * Declare a variable 'result' of type HANDLE | ||
| − | * Add to a calculation icon: result = ::FCD.GetPathHandle("pathname", startpoint) | + | * Add to a calculation icon: <pre class="brush:[cpp]">result = ::FCD.GetPathHandle("pathname", startpoint)</pre> |
Latest revision as of 11:55, 16 January 2023
|
GetPathHandle |
| Gets a FCD paths handle, suitable for traversal with the Tree API | |
 - STRING
|
PathName |
| The '.' separated path through the FCD to look in | |
 - HANDLE
|
StartPoint |
| The handle of an existing FCD path to start the search | |
| - HANDLE
|
Return |
Detailed description
This will get a handle suitable for traversal by the Tree API which is a collection of functions suitable for traversing the FCD files.
FCD files are XML files. The PathName must be a list of items, not including the XML root tag of the tags where the XML attributes are located. So to extract a handle to the FLASH memory detailes Pathname="device.memory".
If the StartPoint is provided then it is assumed this is a handle to a previous call to GetPathHandle, and this path is prepended to PathName. So if StartPoint is a handle to "device.configuration" and PathName="settings.setting" then the full path found will be "device.configuration.settings.setting".
Examples
Calling in a calculation
- Declare a variable 'result' of type HANDLE
- Add to a calculation icon:
result = ::FCD.GetPathHandle("pathname", startpoint)
