imaqCreateOverlayFromROI
From NI Vision for LabWindows/CVI Function
imaqCreateOverlayFromROI
Usage
Overlay* imaqCreateOverlayFromROI(const ROI* roi);
Purpose
Creates a window overlay from a region of interest (ROI). This function is obsolete. You should use imaqOverlayROI() instead. The new function overlays the ROI directly on to the image instead of returning an overlay.
 |
Note This function is obsolete. The replacement function is imaqOverlayROI(), which overlays the ROI directly on to the image instead of returning an overlay. |
Parameters
|
Name
|
Type
|
Description
|
|---|---|---|
| roi | const ROI* | The region of interest to convert into an overlay. |
Return Value
| Type |
Description |
|---|---|
| Overlay* | On success, this function returns an overlay. On failure, this function returns NULL. To get extended error information, call imaqGetLastError(). When you are finished with the overlay, dispose of it by calling imaqDispose(). |