GetValueLengthFromIndex
int GetValueLengthFromIndex (int panelHandle, int controlID, int itemIndex, int *length);
Purpose
Returns the length, in bytes, of the value of a specific list item.
This function is valid only for list controls with string data type.
Supported Controls
You can use GetValueLengthFromIndex with the following controls:
Parameters
| Input | ||
| Name | Type | Description |
| panelHandle | int | Specifier for a particular panel that is currently in memory. You can obtain this handle from functions such as LoadPanel and NewPanel. |
| controlID | int | The defined constant, located in the .uir header file, that you assigned to the control in the User Interface Editor, or the ID returned by functions such as NewCtrl and DuplicateCtrl. |
| itemIndex | int | Zero-based index into the list. |
| Output | ||
| Name | Type | Description |
| length | int | The length, in bytes, of the value of the list item you specify. The length does not include the terminating NUL byte. |
Return Value
| Name | Type | Description |
| status | int | Return value indicating whether the function was successful. A negative number indicates that an error occurred. |
Additional Information
Library: User Interface Library
Include file: userint.h
LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later