Codes

1)
using System;

using System.Net.Http;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using Newtonsoft.Json; // You'd add this via NuGet for JSON serialization/deserialization

2)

private const string GeminiApiKey = "xxxxxxxxxxxxxxxxxx";

// Replace with your actual API key

private const string GeminiApiUrl = "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent?key=" + GeminiApiKey;

3)

private async void button1_Click(object sender, EventArgs e)

{

label1.Text = GeminiApiUrl;

string userInput = inputTextBox.Text;

if (string.IsNullOrWhiteSpace(userInput))

{

MessageBox.Show("Please enter some text.");

return;

}

try

{

using (HttpClient client = new HttpClient())

{

var requestBody = new

{

contents = new[]

{

new

{

parts = new[]

{

new { text = userInput }

}

}

}

};

string jsonContent = JsonConvert.SerializeObject(requestBody);

HttpContent httpContent = new StringContent(jsonContent, Encoding.UTF8, "application/json");

HttpResponseMessage response = await client.PostAsync(GeminiApiUrl, httpContent);

response.EnsureSuccessStatusCode();

string responseBody = await response.Content.ReadAsStringAsync();

dynamic geminiResponse = JsonConvert.DeserializeObject(responseBody);

string generatedText = geminiResponse.candidates[0].content.parts[0].text;

outputTextBox.Text = generatedText;

}

}

catch (HttpRequestException httpEx)

{

outputTextBox.Text = $"Error: {httpEx.Message}. Check your API key";

}

catch (Exception ex)

{

outputTextBox.Text = $"An unexpected error occurred: {ex.Message}";

}

finally

{

}

}

4)

private async void button2_Click(object sender, EventArgs e)

{

using (HttpClient client = new HttpClient())

{

try

{

string url = "https://www.google.com"; // or your API URL

HttpResponseMessage response = await client.GetAsync(url);

if (response.IsSuccessStatusCode)

{

MessageBox.Show("HTTP connection successful!");

}

else

{

MessageBox.Show("Connected, but error: " + response.StatusCode);

}

}

catch (Exception ex)

{

MessageBox.Show("Connection failed:\n" + ex.Message);

}

}

}

5)

String query1 = "";

private async void button3_Click(object sender, EventArgs e)

{

query1 += "Give basic info about this country: " + listBox1.SelectedItem.ToString();

//label2.Text = query1;

string userInput = query1;

try

{

using (HttpClient client = new HttpClient())

{

var requestBody = new

{

contents = new[]

{

new

{

parts = new[]

{

new { text = userInput }

}

}

}

};

string jsonContent = JsonConvert.SerializeObject(requestBody);

HttpContent httpContent = new StringContent(jsonContent, Encoding.UTF8, "application/json");

HttpResponseMessage response = await client.PostAsync(GeminiApiUrl, httpContent);

response.EnsureSuccessStatusCode(); // Throws an exception for HTTP error codes

string responseBody = await response.Content.ReadAsStringAsync();

dynamic geminiResponse = JsonConvert.DeserializeObject(responseBody);

// Extracting the text from the response - adjust based on actual API response structure

string generatedText = geminiResponse.candidates[0].content.parts[0].text;

richTextBox1.Text = generatedText;

}

}

catch (HttpRequestException httpEx)

{

label2.Text = $"Error: {httpEx.Message}. Check your API key and network connection.";

}

catch (Exception ex)

{

label2.Text = $"An unexpected error occurred: {ex.Message}";

}

finally

{

// submitButton.Enabled = true;

}

}

Try

And

So, you can create a versatile GUI that can be used to create the prompt and

get back info from Gemini AI!!!

Some Windows Forms project gui options here:

Web APP test

Here is the app on a browser

It is easier to write the prompt and read answers when we have a proper UI.

Yes. code is here

The main problem is here the visibility of API key!

Another test using web

Here we give an image that AI uses to get answers:

Image is here

How to get free Gemini Api Key

Do not show your API Key!!!

There are some choices to keep it secret (e.g. serverside solutions)