imaqGetWindowGrid
Usage
int imaqGetWindowGrid(int windowNumber, int* xResolution, int* yResolution);
Purpose
Retrieves the grid resolution of the image window. Grid resolution is the number of pixels between grid lines. NI Vision uses the grid resolution when drawing regions of interest on the window using tools in the tool window. You can use the grid to trace a region of interest accurately.
Parameters
|
Name
|
Type
|
Description
|
|---|---|---|
| windowNumber | int | The window number of the image window. |
| xResolution | int* | On return, the number of pixels between grid lines in the x direction. Set this parameter to NULL if you do not need this information. |
| yResolution | int* | On return, the number of pixels between grid lines in the y direction. Set this parameter to NULL if you do not need this information. |
Return Value
| Type |
Description |
|---|---|
| int | On success, this function returns a non-zero value. On failure, this function returns 0. To get extended error information, call imaqGetLastError(). |