Create a new DC and select the original bitmap into it.
创建一个新的DC和选择到它原来的位图。
I want to create the Bitmap and save it to the app's temporary folder.
我想创建位图并将其保存到应用程序的临时文件夹。
To create the rear bumper we must place in the front (or back) view the rear background bitmap.
要创建后保险杠,我们必须在前面(或备份)查看后方的背景图。
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