How to use Application.SmartArtQuickStyles in the xlwings API way

The SmartArtQuickStyles member of the Application object in Excel refers to a collection that represents the set of SmartArt quick styles available within the application. In the context of xlwings, which provides a Pythonic interface to automate Excel, this collection can be accessed to retrieve information about or apply predefined style formats to SmartArt graphics in a workbook. This is particularly useful for programmatically enhancing the visual appeal of SmartArt diagrams, such as organizational charts or process flows, by applying consistent and professional styling without manual intervention.

Functionality:
The primary function is to enumerate and possibly apply the quick styles to SmartArt objects. Each quick style in the collection defines a combination of fills, lines, and effects that can be applied to a SmartArt graphic to change its overall appearance. Through xlwings, you can access this collection to get the count of available styles or reference specific styles by their index.

Syntax:
In xlwings, the Application object is typically accessed via the app object when you have an instance of Excel running. The SmartArtQuickStyles collection is a property of the Application object. The syntax to access it is:

app.api.SmartArtQuickStyles

This returns a SmartArtQuickStyles object, which is a collection. To interact with it, you can use methods and properties such as Count to get the number of styles, or Item(index) to retrieve a specific SmartArtQuickStyle object by its index (1-based). Note that xlwings uses the .api attribute to expose the underlying Excel object model, so this follows the standard Excel VBA object hierarchy but within Python.

Parameters:

• index: An integer that specifies the position of the quick style in the collection. The index starts at 1. You can determine the total number of styles using the Count property.

Example:
Below is an xlwings code example that demonstrates how to access the SmartArtQuickStyles collection and print the count of available styles. It also shows how to reference a specific style and apply it to an existing SmartArt graphic in the active workbook. This assumes you have an Excel instance running with a workbook open that contains at least one SmartArt graphic.

import xlwings as xw

# Connect to the active Excel instance
app = xw.apps.active

# Access the SmartArtQuickStyles collection
quick_styles = app.api.SmartArtQuickStyles

# Get the number of available quick styles
style_count = quick_styles.Count
print(f"Number of available SmartArt quick styles: {style_count}")

# Check if there are styles available
if style_count > 0:
    # Reference the first quick style in the collection (index 1)
    first_style = quick_styles.Item(1)
    print(f"First quick style name: {first_style.Name}")

# Assume we have a SmartArt graphic in the active sheet
# First, get the active sheet
active_sheet = app.api.ActiveSheet

# Try to access the first SmartArt graphic in the sheet
# Note: In practice, you need to ensure a SmartArt exists; this is simplified.
# Typically, you might loop through shapes to find SmartArt.
# Here, we assume the first shape is SmartArt for demonstration.
shapes = active_sheet.Shapes
if shapes.Count > 0:
# Check if the shape is a SmartArt graphic (Type 24 represents SmartArt in Excel)
target_shape = shapes.Item(1)
if target_shape.Type == 24: # 24 is msoSmartArt, a constant for SmartArt
    # Apply the first quick style to the SmartArt graphic
    target_shape.SmartArt.QuickStyle = first_style
    print("Applied the first quick style to the SmartArt graphic.")
else:
    print("The first shape is not a SmartArt graphic.")
else:
    print("No shapes found in the active sheet.")
else:
    print("No SmartArt quick styles are available.")

# Note: Error handling (e.g., for no SmartArt) should be added in production code.