Exporting Window Content as Image
Copying a bitmap to the clipboard
If you want to save the graphical content of a window as an image, use Edit/Copy picture to clipboard from the main menu.
The image will be transferred to the Windows Clipboard as a bitmap, and can be pasted it into any other picture editing program by selecting its Edit/Paste menu option.
Saving a bitmap to a file
Another option is to use the Edit/Save picture as bitmap... menu option. You will be able to choose the file name and save the visual content of the active window into a bitmap file (BMP).