From Xojo Documentation
Exports an object of type Picture.
|result||Boolean||True if the picture was saved successfully; False if the picture was not saved.|
When ExportPicture is called, it displays a save-file dialog box so the user can save the picture in any directory. The user can also use the dialog box to choose a picture format. When the user chooses a format, the appropriate extension is automatically added to the filename.
The BMP format is supported on Windows.
The jpeg and png formats are supported on macOS.
The BMP format is supported on Linux.
The following code allows the user to save a picture. The jpeg file type has already been defined as a File Type using either the FileType class or the File Types Sets Editor in the IDE. It is referred to by the name of the object.
Var r As Boolean
Var f As FolderItem
f = FolderItem.ShowOpenFileDialog(FileTypes1.Jpeg)
If f <> Nil Then
p = Picture.Open(f)
r = ExportPicture(p)
If r Then
MessageBox("Your picture was saved.")
MessageBox("Your picture was not saved.")