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3.2.2 IMG_isPNM

int IMG_isPNM(SDL_RWops *src)


If the PNM format is supported, then the image data is tested to see if it is readable as a PNM, otherwise it returns false (Zero).

Returns: 1 if the image is a PNM and the PNM format support is compiled into SDL_image. 0 is returned otherwise.

// Test sample.pnm to see if it is a PNM
SDL_RWops *rwop;
rwop=SDL_RWFromFile("sample.pnm", "rb");
	printf("sample.pnm is a PNM file.\n");
	printf("sample.pnm is not a PNM file, or PNM support is not available.\n");

See Also:
3.1.3 IMG_LoadTyped_RW

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