VG3 Module Plugin Development

# VG3 Module Plugin Development
## I. Modify File Names
CMvImageDetectByAIObject.h,
CMvImageDetectByAIObject.cpp
CMvImageDetectByAIWidget.h,
CMvImageDetectByAIWidget.cpp
CMvImageDetectByAIWidget.ui
These are algorithm-related names, subsequent variable and class naming steps are similar.

## II. Add Module Function Type in GMvFuncTypePlugin.h, as shown below:

![](/media/202512/2025-12-18_090232_5699580.8915279047388701.png)

## III. Add Module Display Information in Function Tree in CMvFuncInfoPlugin.h, as shown below:

![](/media/202512/2025-12-18_090258_0926900.3527277107960701.png)

## IV. If you need to add a secondary menu in the function tree, add the following content in CMvFuncInfoPlugin.h:

![](/media/202512/2025-12-18_090321_4687500.0017208635783833026.png)

## V. Add the implementation of the corresponding function in CMvFuncInfoPlugin.cpp. Note the following modifications to the constructor:

![](/media/202512/2025-12-18_090342_8795530.6344026580147583.png)

### Modification for adding secondary menu:

![](/media/202512/2025-12-18_090404_4987730.3219067491559897.png)

## VI. Add the following code in CMvCallPlugin.cpp for creating the module when adding a new module to the flow:

![](/media/202512/2025-12-18_090442_1326770.3339272487113245.png)

## VII. Modify the following content in CMvImageDetectByAIObject.cpp:

### Modify the number of input ports, the number of connectable ports in input ports, and output ports in the constructor:

![](/media/202512/2025-12-18_090514_4637260.5149179053214036.png)

### Modify port data type and grouping in the port initialization function:

![](/media/202512/2025-12-18_090535_1602290.3141585248478679.png)

### Display data initialization:

![](/media/202512/2025-12-18_090554_8119380.33076388031001924.png)

### Drawing item creation:

![](/media/202512/2025-12-18_090611_4453790.9951852380957202.png)

### Drawing item refresh:

![](/media/202512/2025-12-18_091841_7670110.6518663412646895.png)

### Image display result refresh:

![](/media/202512/2025-12-18_091911_7726850.41618376314274985.png)

### Read input parameters and call algorithm:

![](/media/202512/2025-12-18_091933_9084840.010345063652610231.png)

## VIII. Modify the following content in CMvImageDetectByAIWidget.cpp:

### Modify function type in constructor, drawing item creation [ROI of this interface does not need to create drawing items]:

![](/media/202512/2025-12-18_092005_9969000.19746430925746583.png)

### Drawing item refresh:

![](/media/202512/2025-12-18_092028_8013780.16153894178435646.png)

### Read input parameters and call algorithm:

![](/media/202512/2025-12-18_092045_0604980.7469549907635975.png)

### Slot function of algorithm parameter control:

![](/media/202512/2025-12-18_092106_1864510.7907921268932812.png)

## IX. Modify the function type of the module in the TestPlugin.cpp file:

![](/media/202512/2025-12-18_092126_2825860.384930537577194.png)

## X. Recompile to generate the executable program, run the executable program to perform image settings and module settings for test detection

### Check if there is any exception in the written module

![](/media/202512/2025-12-18_092221_2623720.24897252741499165.png)

## XI. After testing without problems, copy VG3vCallPlugin.dll to the VG3 release package suffixed with beta, open the VG3 software, and you can see the newly added plugin module in the function tree.

![](/media/202512/2025-12-18_092254_7613310.2302715220052236.png)

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Click here to jump to the corresponding Chinese manual page: [VG3 Module Plugin Development](/doc/275)