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MGL_getPNGSize

Obtain the dimensions of a PNG file from disk.

Declaration

ibool MGLAPI MGL_getPNGSize(
const char *PNGName,
int *width,
int *height,
int *bitsPerPixel,
pixel_format_t *pf)

Prototype In

mgraph.h

Parameters

PNGName | Name of the bitmap file to load header for
width | Place to store the bitmap width
height | Place to store the bitmap height
bitsPerPixel | Place to store the bitmap pixel depth
pf | Place to store the bitmap pixel format information

Return Value

True if the PNG file was found, false if not.

Description

This functions loads all the header information for a PNG file from disk, without actually loading the bits for the bitmap surface. This is useful to determine the dimensions and pixel format for the bitmap before it is loaded, so you can create an appropriate memory device context that you can load the bitmap into with the MGL_loadPNGIntoDC function.

See Also

MGL_loadPNG, MGL_loadPNGIntoDC

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