圖形轉換爲位圖

Question

我創建一個Graphics對象繪製在原始圖像上，我想修改後的圖像保存爲窗體上的一個新的形象。形象，以及繪圖

Answer 1

//load bitmap from file 
Image bmp = Image.FromFile(); 

Graphics g = Graphics.FromImage(bmp); 

//do drawing here with g. 

bmp.Save(); 

g.Dispose() 

Answer 2

Bitmap newBitmap = new Bitmap(originalBitmap); 
    using (Graphics myGraphics = Graphics.FromImage(newBitmap)) 
    { 
     // draw here on myGraphics 
    } 
    // newBitmap - modified image 

或者與負載&節省：

Bitmap myBitmap = new Bitmap("fileName.bmp"); 
    using (Graphics myGraphics = Graphics.FromImage(myBitmap)) 
    { 
     // draw here on myGraphics 
    } 
    myBitmap.Save("newFileName.bmp");