C # synthesize JPG images into BMP Images

In C #, sometimes there are several image display problems, such as a background image, and images that are always to be displayed on the background image, how can I combine these two images into one image for display?

The following example provides a solution,CodeAs follows:

// Strwinepath Image

// Strbackpic background image

Private void testpaint (string strwinepath, string strwinedetailbackpic)

{

// Obtain the image of the wine. The image format of the wine is JPG.

Image imgwine = image. fromfile (strwinepath );

// Obtain the background image. The format of the background image is also in JPG format. Currently, the image is in BMP format.
Bitmap BMP = new Bitmap (strbackpic );

Obtain the drawing surface of the background image
Graphics G = graphics. fromimage (BMP );

// Draw the wine image to the background image
G. drawimage (imgwine, 149,209,100,416 );

// Load and display the background image to the background
This. backgroundimage = BMP;
This. backgroundimagelayout = system. Windows. Forms. imagelayout. Stretch;

}

This completes the synthesis of two images.