C # screenshot Operation Method Daquan

usingSystem.Drawing;usingSystem.Windows.Forms;namespacewindowsformsapplication1{classScreencapture {PrivateBitmap _screenshot =NULL; /// <summary>        ///Capture Full Screen/// </summary>        /// <returns>return value</returns>         PublicBitmap Capturescreen () {returnCapture (Rectangle.empty,false); }         /// <summary>        ///capture full screen and save/// </summary>        /// <param name= "FileName" >file path</param>        /// <returns></returns>         PublicBitmap Capturescreen (stringfileName) {Bitmap screenshot= Capture (Rectangle.empty,false);            SaveImage (FileName, screenshot); returnscreenshot; }         /// <summary>        ///screenshot to shear plate/// </summary>         Public voidCopyToClipboard () {if( This. _screenshot! =NULL) Clipboard.setimage ( This. _screenshot); Else if( This. _screenshot = =NULL) MessageBox.Show ("No screenshot found. Please take a screenshot first.","Copy to Clipboard"); }         /// <summary>        ///Area Screen Cutting/// </summary>        /// <param name= "rect" >Area Range</param>        /// <returns>return value</returns>         PublicBitmap capturerectangle (Rectangle rect) {returnCapture (Rect,true); }         /// <summary>        ///Area Screen Cutting/// </summary>        /// <param name= "rect" >Area Range</param>        /// <param name= "FileName" >file path</param>        /// <returns>return value</returns>         PublicBitmap Capturerectangle (Rectangle rect,stringfileName) {Bitmap screenshot= Capture (Rect,true);            SaveImage (FileName, screenshot); returnscreenshot; }         PrivateBitmap Capture (Rectangle rect,BOOLisrect) {            intScreenWidth =Screen.PrimaryScreen.Bounds.Width; intScreenHeight =Screen.PrimaryScreen.Bounds.Height; Bitmap screenshot=NULL; if(!isrect) screenshot=NewBitmap (ScreenWidth, screenheight); Else if(isrect) screenshot=NewBitmap (rect. Width, Rect.             Height); Graphics g=Graphics.fromimage (screenshot); if(!isrect) {G.copyfromscreen (Point.empty, Point.empty, screenshot.            Size); }            Else if(isrect) {G.copyfromscreen (NewPoint (Rect. X, Rect. Y), Point.empty, rect.            Size); }              This. _screenshot =screenshot; returnscreenshot; }         Private voidSaveImage (stringFileName, Bitmap screenshot) {            stringext =System.IO.Path.GetExtension (fileName);; Ext=ext.             ToLower (); if(ext = =". jpg"|| ext = =". JPEG") screenshot.            Save (FileName, System.Drawing.Imaging.ImageFormat.Jpeg); Else if(ext = =". gif") screenshot.            Save (FileName, System.Drawing.Imaging.ImageFormat.Gif); Else if(ext = =". PNG") screenshot.            Save (FileName, System.Drawing.Imaging.ImageFormat.Png); Else if(ext = =". bmp") screenshot.            Save (FileName, SYSTEM.DRAWING.IMAGING.IMAGEFORMAT.BMP); Else if(ext = =". TIFF") screenshot.        Save (FileName, System.Drawing.Imaging.ImageFormat.Tiff); }    }}

C # Operations Methods Daquan