checkPictureFile

checkPictureFile(fileName: String): Integer;

The checkPictureFile method of the Application class checks the contents of the file specified in the fileName parameter to determine whether it contains a valid picture image.

The return values from this method are listed in the following table.

Window Class Constants	Integer	Picture Type
PictureType_None	0	Not a valid picture
PictureType_Bitmap	1	Bitmap
	2	Not used
PictureType_Icon	3	Icon
PictureType_MetaFile	4	Metafile
PictureType_Cursor	5	Cursor
PictureType_Tiff	6	Tag Image File Format (.tif file)
PictureType_Jpeg	7	Joint Photographic Experts Group (JPEG)
PictureType_Jpeg2000	10	Joint Photographic Experts Group (JPEG 2000)
PictureType_Png	8	Portable Network Graphics (png)
PictureType_Gif	9	Graphics Interchange Format (.gif file)

The following example shows the use of the checkPictureFile method.

vars
    helix : String;
    icon  : Binary;
begin
    helix := " c:\jade\bin\Jade.bmp";
    if app.checkPictureFile(helix) = Window.PictureType_Bitmap then
        icon := app.loadPicture(helix);
        write icon.display;
    endif;
end;