IG_convert_PPM_to

IG_convert_PPM_to_DPI

In This Topic

Converts Pels Per Meter (PPM) to Dots Per Inch (DPI).

Declaration:

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LONG ACCUAPI IG_convert_PPM_to_DPI( LONG lPelsPerMeter );

Arguments:

Name	Type	Description
lPelsPerMeter	LONG	A variable of type LONG, holding the pels per meter (PPM) value that can be converted to dots per inch (DPI).

Return Value:

Returns a LONG indicating the DPI of an image.

Supported Raster Image Formats:

This function does not process image pixels.

Sample:

None

Example:

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LONG IPpm, IDpi; ... IPpm=IG_convert_PPM_to_DPI(IPpm); ...

Remarks:

"Pels" is an abbreviated term for pixels. This function can be useful when you are converting a DIB to a format that supports dots per inch. The header structure of a DIB (the BIMAPINFOHEADER) contains two fields whose values are defined in "pels per meter": LONG biXPelsPerMeter and LONG biYPelsPerMeter.

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