[英]Unhandled exception: Parameter is not valid
我是新程序員，正在嘗試使用c＃編寫程序，該程序單擊屏幕上的特定坐標並從屏幕上搜索圖像，並在找到它時單擊它。 程序運行正常，但30-40分鍾后崩潰。 當它崩潰時，彈出窗口-您的應用程序中發生未處理的異常。
參數無效
詳情如下：
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.ArgumentException: Parameter is not valid.
at System.Drawing.Bitmap..ctor(Int32 width, Int32 height, PixelFormat format)
at System.Drawing.Bitmap..ctor(Int32 width, Int32 height)
at Uncle_s_Bot.Form1.Screenshot()
at Uncle_s_Bot.Form1.btnStart_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
這里和程序代碼：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Threading;
namespace Uncle_s_Bot
{
public partial class Form1 : Form
{
[DllImport("user32.dll")]
static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint dwData,
int dwExtraInfo);
public enum MouseEventFlags : uint
{
MOUSEEVENTF_ABSOLUTE = 0x8000,
MOUSEEVENTF_LEFTDOWN = 0x0002,
MOUSEEVENTF_LEFTUP = 0x0004,
MOUSEEVENTF_MIDDLEDOWN = 0x0020,
MOUSEEVENTF_MIDDLEUP = 0x0040,
MOUSEEVENTF_MOVE = 0x0001,
MOUSEEVENTF_RIGHTDOWN = 0x0008,
MOUSEEVENTF_RIGHTUP = 0x0010,
MOUSEEVENTF_XDOWN = 0x0080,
MOUSEEVENTF_XUP = 0x0100,
MOUSEEVENTF_WHEEL = 0x0800,
MOUSEEVENTF_HWHEEL = 0x01000
}
public Form1()
{
InitializeComponent();
}
private void btnStart_Click(object sender, EventArgs e)
{
Bitmap bmpScreenshot;
Point location;
bool success;
bool MaybeAvailable = false;
while (true)
{
// Point 1
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(95, 140);
mouseClick();
Thread.Sleep(7500);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
// Point 2
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(135, 135);
mouseClick();
Thread.Sleep(10000);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
// Point 3
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(180, 140);
mouseClick();
Thread.Sleep(10000);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
// Point 4
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(190, 170);
mouseClick();
Thread.Sleep(8500);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
// Point 5
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(150, 185);
mouseClick();
Thread.Sleep(10000);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
// Point 6
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(180, 210);
mouseClick();
Thread.Sleep(10000);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
// Point 7
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(150, 240);
mouseClick();
Thread.Sleep(8500);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
// Point 8
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(95, 235);
mouseClick();
Thread.Sleep(9500);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
// Point 9
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(110, 200);
mouseClick();
Thread.Sleep(10000);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
// Point 10
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(80, 170);
mouseClick();
Thread.Sleep(10000);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
// Point 11
do
{
bmpScreenshot = Screenshot();
success = FindBitmap(Properties.Resources.bmp_Bonus, bmpScreenshot, out location);
if (success == true)
{
Cursor.Position = location;
mouseClick();
Thread.Sleep(1500);
MaybeAvailable = true;
}
else
{
Cursor.Position = new Point(120, 165);
mouseClick();
Thread.Sleep(11500);
MaybeAvailable = false;
}
}
while (MaybeAvailable);
}
}
private void mouseClick()
{
mouse_event((uint)MouseEventFlags.MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0);
Thread.Sleep((new Random()).Next(20, 30));
mouse_event((uint)MouseEventFlags.MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);
}
private Bitmap Screenshot()
{
// save snapshot of screen
Bitmap bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
// create a graphic object so we can draw the screen in the bitmap
Graphics g = Graphics.FromImage(bmpScreenshot);
// copy from screen into the bitmap we created
g.CopyFromScreen(0, 0, 0, 0, Screen.PrimaryScreen.Bounds.Size);
// return the screenshot
return bmpScreenshot;
}
// Find location of a bitmap within another bitmap and return if it was succesufulyy found
private bool FindBitmap(Bitmap bmpNeedle, Bitmap bmpHaystack, out Point location)
{
for (int outerX = 0; outerX < bmpHaystack.Width - bmpNeedle.Width; outerX++)
{
for (int outerY = 0; outerY < bmpHaystack.Height - bmpNeedle.Height; outerY++)
{
for (int innerX = 0; innerX < bmpNeedle.Width; innerX++)
{
for (int innerY = 0; innerY < bmpNeedle.Height; innerY++)
{
Color cNeedle = bmpNeedle.GetPixel(innerX, innerY);
Color cHaystack = bmpHaystack.GetPixel(innerX + outerX, innerY + outerY);
if (cNeedle.R != cHaystack.R || cNeedle.G != cHaystack.G || cNeedle.B != cHaystack.B)
{
goto notFound;
}
}
}
location = new Point(outerX, outerY);
return true;
notFound:
continue;
}
}
location = Point.Empty;
return false;
}
private void Form1_Load(object sender, EventArgs e)
{
}
}
}
創建新的位圖后，圖形將導致內部GDI +函數調用。 所有這些功能最終都會出錯，並且錯誤會轉換為.NET異常（不幸的是，沒有其他參數名，信息等）。 因此，某些錯誤可能真的很難理解。
由於句柄泄漏和內存泄漏（對於GDI +），可能會發生某些問題。 例如，創建很多非常大的位圖會在非托管空間中分配很多連續的塊。 GC不了解內存壓力，因此不嘗試清潔。 假設在100次調用之后傳遞足夠大的Width和Height可能會注意到內存不足，並抱怨寬度和高度過大而拋出ArgumentException。
首先，如果不需要位圖，請考慮將其放置。 不要忘記也要處理圖形。
如果沒有幫助，請告訴我。
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