Hi all,
REALbasic 2005r4 Pro for Mac OS X
Mac OS X 10.3.9
I just saw a difference between the presence or the absence of:
SaveDlg.Filter = GraphicsFT.All
If you put that line (of course with a defined GraphicsFT File Type), you will
get a "GroupBox with a StaticText ("Format:") / PopupMenu (<Display Name>)"...
You will be able to choose the target File Type from that PopupMenu.
In my case, the first defined File Type is "image/bmp", then I get as the
default PopupMenu entry is: "Windows Bitmap Image"...
When I removed the bmp entry (the next entry is GIF) I get as the default
PopupMenu entry is: "Graphics Interchange Format Image"...
FYI: I have defined: BMP, GIF, JPG, PICT, PNG and TIFF. So when I click in the
PopupMenu, I get these entries: image/bmp, image/gif, image/jpg, image/pict,
image/png and image/tiff... (the Display Name values for the file types).
Using the filter line also adds the correct extension for the selected file
type: if you choose "image/png" in the PopupMenu, you will see .png as the file
name extension...
WARNING: you have to provide the data in the correct format because the above
mechanism only provide the extension and does not do anything more than that !
As an example, if you use .SaveAsPicture and choose bmp, the file is saved as
PICT but the file extension is bmp (and so you lie to everyone and Preview will
not display the file unless you remove the extension (.bmp) or change it to .pct
or .pict [.pect works too !].
Unfortunately, using:
SaveDlg.Filter = GraphicsFT.PICT
does not provide this mechanism; i.e. is ignored / only GraphicsFT.All provide
the above mechanism.
How do I know what Method to use (to provide the data in the correct type) ?
SaveFI = SaveDlg.ShowModal()
If SaveFI = Nil Then
// Did you clicked in Cancel ?
Return False
End If
MsgBox SaveFI.Type + EndOfLine + SaveFI.MacType + EndOfLine + SaveFI.Name
Type is empty
MacType = "????"
Name returns the whole name _WITH_ the extension.
So a simple check in the extension gives the choosed type and allows you to call
the Method that will save the data with the correct format.
Ask me if the above is not clear enough,
Emile
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