QPx_GetImageFileInfo

QPx_GetImageFileInfo(imagePath; imageWidth; imageHeight; pixelDepth; hRes; vRes):error
	imagePath	Text	Full path to image file
	imageWidth	Longint	Image width in pixels
	imageHeight	Longint	Image height in pixels
	pixelDepth	Longint	Image depth
	hRes	Longint	Horizontal image resolution in dots/inch (dpi)
	vRes	Longint	Vertical image resolution in dots/inch (dpi)
	error	Longint	Error result

Returns the properties of an image file.

The imagePath parameter contains the full pathname to the image file. If imagePath is empty, QPix presents a file selection dialog where the user can preview and select an image file. If the user selects a file, its full pathname is returned in imagePath, otherwise error qpx_userCancelErr is returned.

Image dimensions are returned in imageWidth and imageHeight, horizontal and vertical resolution in hRes and vRes and pixel depth in pixelDepth. Possible values for pixelDepth are:

qpx_BlackAndWhite	1	Black and white
qpx_FourColors	2	Four colors
qpx_SixteenColors	4	Sixteen colors
qpx_TwoHundredFiftySixColors	8	256 colors
qpx_ThousandsColors	16	Thousands of colors
qpx_MillionColors	24	Million of colors
qpx_MillionColorsPlusAlpha	32	Million of colors plus alpha
qpx_FourGrays	34	Four grays
qpx_SixteenGrays	36	Sixteen grays
qpx_TwoHundredFiftySixGrays	40	256 grays

Example

`Get image info
C_LONGINT($error)
C_TEXT($imagePath)
C_LONGINT($width;$height;$depth;$hRes;$vRes)

$imagePath:="Hard disk:images:people.gif"

$error:=QPx_GetImageFileInfo ($imagePath;$width;$height;$depth;$hRes;$vRes)

If ($error=qpx_noErr)
`Work with image info
End if

Related commands

QPx_GetImageFileColorSpace	Returns the color space of an image
QPx_GetImageFileColorProfile	Returns the color profile of an image