C#實(shí)現(xiàn)屏幕抓圖并保存的示例代碼
更新時(shí)間：2022年12月09日 14:48:23 作者：芝麻粒兒
這篇文章主要為大家詳細(xì)介紹了如何利用C#實(shí)現(xiàn)屏幕抓圖并保存的功能，文中的示例代碼講解詳細(xì)，對(duì)我們學(xué)習(xí)C#有一定的幫助，感興趣的小伙伴可以了解一下
實(shí)踐過程
效果
代碼
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private int _X, _Y;
[StructLayout(LayoutKind.Sequential)]
private struct ICONINFO
{
public bool fIcon;
public Int32 xHotspot;
public Int32 yHotspot;
public IntPtr hbmMask;
public IntPtr hbmColor;
}
[StructLayout(LayoutKind.Sequential)]
private struct CURSORINFO
{
public Int32 cbSize;
public Int32 flags;
public IntPtr hCursor;
public Point ptScreenPos;
}
[DllImport("user32.dll", EntryPoint = "GetSystemMetrics")]
private static extern int GetSystemMetrics(int mVal);
[DllImport("user32.dll", EntryPoint = "GetCursorInfo")]
private static extern bool GetCursorInfo(ref CURSORINFO cInfo);
[DllImport("user32.dll", EntryPoint = "CopyIcon")]
private static extern IntPtr CopyIcon(IntPtr hIcon);
[DllImport("user32.dll", EntryPoint = "GetIconInfo")]
private static extern bool GetIconInfo(IntPtr hIcon, out ICONINFO iInfo);
[DllImport("kernel32")]
private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
[DllImport("kernel32")]
private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retval,
int size, string filePath);
#region 定義快捷鍵
//如果函數(shù)執(zhí)行成功，返回值不為0。
//如果函數(shù)執(zhí)行失敗，返回值為0。要得到擴(kuò)展錯(cuò)誤信息，調(diào)用GetLastError。
[DllImport("user32.dll", SetLastError = true)]
public static extern bool RegisterHotKey(
IntPtr hWnd, //要定義熱鍵的窗口的句柄
int id, //定義熱鍵ID（不能與其它ID重復(fù)）
KeyModifiers fsModifiers, //標(biāo)識(shí)熱鍵是否在按Alt、Ctrl、Shift、Windows等鍵時(shí)才會(huì)生效
Keys vk //定義熱鍵的內(nèi)容
);
[DllImport("user32.dll", SetLastError = true)]
public static extern bool UnregisterHotKey(
IntPtr hWnd, //要取消熱鍵的窗口的句柄
int id //要取消熱鍵的ID
);
//定義了輔助鍵的名稱（將數(shù)字轉(zhuǎn)變?yōu)樽址员阌谟洃?，也可去除此枚舉而直接使用數(shù)值）
[Flags()]
public enum KeyModifiers
{
None = 0,
Alt = 1,
Ctrl = 2,
Shift = 4,
WindowsKey = 8
}
#endregion
public string path;
public void IniWriteValue(string section, string key, string value)
{
WritePrivateProfileString(section, key, value, path);
}
public string IniReadValue(string section, string key)
{
StringBuilder temp = new StringBuilder(255);
int i = GetPrivateProfileString(section, key, "", temp, 255, path);
return temp.ToString();
}
private Bitmap CaptureNoCursor() //抓取沒有鼠標(biāo)的桌面
{
Bitmap _Source = new Bitmap(GetSystemMetrics(0), GetSystemMetrics(1));
using (Graphics g = Graphics.FromImage(_Source))
{
g.CopyFromScreen(0, 0, 0, 0, _Source.Size);
g.Dispose();
}
return _Source;
}
private Bitmap CaptureDesktop() //抓取帶鼠標(biāo)的桌面
{
try
{
int _CX = 0, _CY = 0;
Bitmap _Source = new Bitmap(GetSystemMetrics(0), GetSystemMetrics(1));
using (Graphics g = Graphics.FromImage(_Source))
{
g.CopyFromScreen(0, 0, 0, 0, _Source.Size);
g.DrawImage(CaptureCursor(ref _CX, ref _CY), _CX, _CY);
g.Dispose();
}
_X = (800 - _Source.Width) / 2;
_Y = (600 - _Source.Height) / 2;
return _Source;
}
catch
{
return null;
}
}
private Bitmap CaptureCursor(ref int _CX, ref int _CY)
{
IntPtr _Icon;
CURSORINFO _CursorInfo = new CURSORINFO();
ICONINFO _IconInfo;
_CursorInfo.cbSize = Marshal.SizeOf(_CursorInfo);
if (GetCursorInfo(ref _CursorInfo))
{
if (_CursorInfo.flags == 0x00000001)
{
_Icon = CopyIcon(_CursorInfo.hCursor);
if (GetIconInfo(_Icon, out _IconInfo))
{
_CX = _CursorInfo.ptScreenPos.X - _IconInfo.xHotspot;
_CY = _CursorInfo.ptScreenPos.Y - _IconInfo.yHotspot;
return Icon.FromHandle(_Icon).ToBitmap();
}
}
}
return null;
}
string Cursor;
string PicPath;
private void button1_Click(object sender, EventArgs e)
{
try
{
path = Application.StartupPath.ToString();
path = path.Substring(0, path.LastIndexOf("\\"));
path = path.Substring(0, path.LastIndexOf("\\"));
path += @"\Setup.ini";
if (checkBox1.Checked == true)
{
Cursor = "1";
}
else
{
Cursor = "0";
}
if (txtSavaPath.Text == "")
{
PicPath = @"D:\";
}
else
{
PicPath = txtSavaPath.Text.Trim();
}
IniWriteValue("Setup", "CapMouse", Cursor);
IniWriteValue("Setup", "Dir", PicPath);
MessageBox.Show("保存成功！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
private void button2_Click(object sender, EventArgs e)
{
this.Hide();
}
private void button3_Click(object sender, EventArgs e)
{
if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
{
txtSavaPath.Text = folderBrowserDialog1.SelectedPath;
}
}
private void Form1_StyleChanged(object sender, EventArgs e)
{
RegisterHotKey(Handle, 81, KeyModifiers.Shift, Keys.F);
}
public bool flag = true;
private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
{
//注銷Id號(hào)為81的熱鍵設(shè)定
UnregisterHotKey(Handle, 81);
timer1.Stop();
flag = false;
Application.Exit();
}
string MyCursor;
string MyPicPath;
private void Form1_Activated(object sender, EventArgs e)
{
RegisterHotKey(Handle, 81, KeyModifiers.Shift, Keys.F);
path = Application.StartupPath.ToString();
path = path.Substring(0, path.LastIndexOf("\\"));
path = path.Substring(0, path.LastIndexOf("\\"));
path += @"\Setup.ini";
MyCursor = IniReadValue("Setup", "CapMouse");
MyPicPath = IniReadValue("Setup", "Dir");
if (MyCursor == "" || MyPicPath == "")
{
checkBox1.Checked = true;
txtSavaPath.Text = @"D:\";
}
else
{
if (MyCursor == "1")
{
checkBox1.Checked = true;
}
else
{
checkBox1.Checked = false;
}
txtSavaPath.Text = MyPicPath;
}
}
private void getImg()
{
DirectoryInfo di = new DirectoryInfo(MyPicPath);
if (!di.Exists)
{
Directory.CreateDirectory(MyPicPath);
}
if (MyPicPath.Length == 3)
MyPicPath = MyPicPath.Remove(MyPicPath.LastIndexOf(":") + 1);
string PicPath = MyPicPath + "\\IMG_" + DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() +
DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() +
DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + ".bmp";
Bitmap bt;
if (MyCursor == "0")
{
bt = CaptureNoCursor();
bt.Save(PicPath);
}
else
{
bt = CaptureDesktop();
bt.Save(PicPath);
}
}
protected override void WndProc(ref Message m)
{
const int WM_HOTKEY = 0x0312;
//按快捷鍵
switch (m.Msg)
{
case WM_HOTKEY:
switch (m.WParam.ToInt32())
{
case 81: //按下的是Shift+Q
getImg();
break;
}
break;
}
base.WndProc(ref m);
}
private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e) //雙擊顯示設(shè)置窗體
{
this.Show();
}
private void 設(shè)置ToolStripMenuItem_Click(object sender, EventArgs e) //單擊設(shè)置打開設(shè)置窗體
{
this.Show();
}
private void timer1_Tick(object sender, EventArgs e)
{
RegisterHotKey(Handle, 81, KeyModifiers.Shift, Keys.F);
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
this.Hide();
if (flag == true)
{
e.Cancel = true;
}
}
private void Form1_Load(object sender, EventArgs e)
{
}
}
partial class Form1
{
/// <summary>
/// 必需的設(shè)計(jì)器變量。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的資源。
/// </summary>
/// <param name="disposing">如果應(yīng)釋放托管資源，為 true；否則為 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows 窗體設(shè)計(jì)器生成的代碼
/// <summary>
/// 設(shè)計(jì)器支持所需的方法 - 不要
/// 使用代碼編輯器修改此方法的內(nèi)容。
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.button3 = new System.Windows.Forms.Button();
this.txtSavaPath = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.checkBox1 = new System.Windows.Forms.CheckBox();
this.folderBrowserDialog1 = new System.Windows.Forms.FolderBrowserDialog();
this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);
this.contextMenuStrip1 = new System.Windows.Forms.ContextMenuStrip(this.components);
this.設(shè)置ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.退出ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.timer1 = new System.Windows.Forms.Timer(this.components);
this.groupBox1.SuspendLayout();
this.contextMenuStrip1.SuspendLayout();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(82, 91);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 2;
this.button1.Text = "保存設(shè)置";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(163, 91);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(75, 23);
this.button2.TabIndex = 3;
this.button2.Text = "關(guān)閉";
this.button2.UseVisualStyleBackColor = true;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// groupBox1
//
this.groupBox1.Controls.Add(this.button3);
this.groupBox1.Controls.Add(this.txtSavaPath);
this.groupBox1.Controls.Add(this.label1);
this.groupBox1.Controls.Add(this.checkBox1);
this.groupBox1.Location = new System.Drawing.Point(13, 14);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(301, 71);
this.groupBox1.TabIndex = 5;
this.groupBox1.TabStop = false;
this.groupBox1.Text = "功能設(shè)置";
//
// button3
//
this.button3.Location = new System.Drawing.Point(257, 42);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(35, 23);
this.button3.TabIndex = 3;
this.button3.Text = "...";
this.button3.UseVisualStyleBackColor = true;
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// txtSavaPath
//
this.txtSavaPath.BackColor = System.Drawing.Color.White;
this.txtSavaPath.Location = new System.Drawing.Point(69, 44);
this.txtSavaPath.Name = "txtSavaPath";
this.txtSavaPath.ReadOnly = true;
this.txtSavaPath.Size = new System.Drawing.Size(182, 21);
this.txtSavaPath.TabIndex = 2;
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(9, 49);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(65, 12);
this.label1.TabIndex = 1;
this.label1.Text = "存放目錄：";
//
// checkBox1
//
this.checkBox1.AutoSize = true;
this.checkBox1.Location = new System.Drawing.Point(11, 20);
this.checkBox1.Name = "checkBox1";
this.checkBox1.Size = new System.Drawing.Size(198, 16);
this.checkBox1.TabIndex = 0;
this.checkBox1.Text = "抓取鼠標(biāo)(抓圖快捷鍵為Shift+F)";
this.checkBox1.UseVisualStyleBackColor = true;
//
// notifyIcon1
//
this.notifyIcon1.ContextMenuStrip = this.contextMenuStrip1;
this.notifyIcon1.Icon = ((System.Drawing.Icon)(resources.GetObject("notifyIcon1.Icon")));
this.notifyIcon1.Text = "嘯天屏幕抓圖";
this.notifyIcon1.Visible = true;
this.notifyIcon1.MouseDoubleClick += new System.Windows.Forms.MouseEventHandler(this.notifyIcon1_MouseDoubleClick);
//
// contextMenuStrip1
//
this.contextMenuStrip1.AutoSize = false;
this.contextMenuStrip1.BackColor = System.Drawing.Color.White;
this.contextMenuStrip1.BackgroundImageLayout = System.Windows.Forms.ImageLayout.None;
this.contextMenuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.設(shè)置ToolStripMenuItem,
this.退出ToolStripMenuItem});
this.contextMenuStrip1.Name = "contextMenuStrip1";
this.contextMenuStrip1.RenderMode = System.Windows.Forms.ToolStripRenderMode.Professional;
this.contextMenuStrip1.ShowImageMargin = false;
this.contextMenuStrip1.ShowItemToolTips = false;
this.contextMenuStrip1.Size = new System.Drawing.Size(50, 55);
//
// 設(shè)置ToolStripMenuItem
//
this.設(shè)置ToolStripMenuItem.AutoSize = false;
this.設(shè)置ToolStripMenuItem.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Text;
this.設(shè)置ToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.FromArgb(((int)(((byte)(128)))), ((int)(((byte)(128)))), ((int)(((byte)(255)))));
this.設(shè)置ToolStripMenuItem.Name = "設(shè)置ToolStripMenuItem";
this.設(shè)置ToolStripMenuItem.Size = new System.Drawing.Size(50, 22);
this.設(shè)置ToolStripMenuItem.Text = "設(shè)置";
this.設(shè)置ToolStripMenuItem.Click += new System.EventHandler(this.設(shè)置ToolStripMenuItem_Click);
//
// 退出ToolStripMenuItem
//
this.退出ToolStripMenuItem.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Text;
this.退出ToolStripMenuItem.ImageScaling = System.Windows.Forms.ToolStripItemImageScaling.None;
this.退出ToolStripMenuItem.Name = "退出ToolStripMenuItem";
this.退出ToolStripMenuItem.Size = new System.Drawing.Size(69, 22);
this.退出ToolStripMenuItem.Text = "退出";
this.退出ToolStripMenuItem.Click += new System.EventHandler(this.退出ToolStripMenuItem_Click);
//
// timer1
//
this.timer1.Enabled = true;
this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(326, 123);
this.Controls.Add(this.groupBox1);
this.Controls.Add(this.button1);
this.Controls.Add(this.button2);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "屏幕抓圖";
this.StyleChanged += new System.EventHandler(this.Form1_StyleChanged);
this.Load += new System.EventHandler(this.Form1_Load);
this.Activated += new System.EventHandler(this.Form1_Activated);
this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);
this.groupBox1.ResumeLayout(false);
this.groupBox1.PerformLayout();
this.contextMenuStrip1.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.GroupBox groupBox1;
private System.Windows.Forms.TextBox txtSavaPath;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.CheckBox checkBox1;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.FolderBrowserDialog folderBrowserDialog1;
private System.Windows.Forms.NotifyIcon notifyIcon1;
private System.Windows.Forms.ContextMenuStrip contextMenuStrip1;
private System.Windows.Forms.ToolStripMenuItem 設(shè)置ToolStripMenuItem;
private System.Windows.Forms.ToolStripMenuItem 退出ToolStripMenuItem;
private System.Windows.Forms.Timer timer1;
}
到此這篇關(guān)于C#實(shí)現(xiàn)屏幕抓圖并保存的示例代碼的文章就介紹到這了,更多相關(guān)C#屏幕抓圖內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！
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