Question

Public Class Form1
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim terrain As Bitmap(500, 500)
        terrain = New Bitmap(500, 500)
        terrain.GetPixel(250, 250)
    End Sub
End Class

这是我的代码，我收到错误GetPixel is not a member of Bitmap()。我不确定我做错了什么。请错过我在这里做错的事情，我以前从未在VB中编码。

Answer 1

Plesleron

如果您拥有所需的一切，我不确定您粘贴的代码。

以下是您可以在Visual Basic中使用Bitmap所需的代码示例。

首先，您需要添加＆＃34; Imports System.Drawing＆＃34;

以下是使用位图所需的代码示例。

Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Text.RegularExpressions
Imports System.Drawing

Namespace Rextester
    Public Module Program
        Public Sub Main(args() As string)
            'Your code goes here
            Console.WriteLine("Hello, world!")

            Try
        ' Retrieve the image.
        Dim image1 = New Bitmap( _
            "C:\temp\Grapes.jpg", _
            True)

        Dim x, y As Integer

        ' Loop through the images pixels to reset color.
        For x = 0 To image1.Width - 1
            For y = 0 To image1.Height - 1
                Dim pixelColor As Color = image1.GetPixel(x, y)
                Dim newColor As Color = _
                    Color.FromArgb(pixelColor.R, 0, 0)
                image1.SetPixel(x, y, newColor)
            Next
        Next

        ' Set the PictureBox to display the image.
        Console.WriteLine(image1)

        ' Display the pixel format in Label1.
        Console.Writeline("Pixel format: " + image1.PixelFormat.ToString())

    Catch ex As ArgumentException
        Console.Writeline("There was an error." _
            & "Check the path to the image file.")
    End Try
        End Sub
    End Module
End Namespace

我似乎无法使用GetPixel for Bitmap（）Visual Basic

1 个答案: