IG_IP_decrypt

This function decodes an image, or a rectangular portion thereof, that was encrypted using IG_IP_encrypt().

Declaration:

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AT_ERRCOUNT ACCUAPI IG_IP_decrypt ( HIGEAR hIGear, LPAT_RECT lpRect, AT_MODE nEncryptType, LPSTR lpszPassword );

Arguments:

Name	Type	Description
hIGear	HIGEAR	HIGEAR handle of image to be decoded.
lpRect	LPAT_RECT	Far pointer to an AT_RECT struct specifying the rectangular portion of the image to decode. Set = NULL for the whole image.
nEncrptyType	AT_MODE	An IG_ENCRYPT_METHOD_ constant specifying how the image was encoded.
lpszPassword	LPSTR	Far pointer to your zero-terminated password string.

Return Value:

Returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

All pixel formats supported by ImageGear for C and C++.

Example:

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HIGEAR hIGear; /* Decrypt the whole hIGear image by method A & with "Top Secret" password */ IG_IP_decrypt (hIGear, NULL, IG_ENCRYPT_METHOD_A, "Top Secret");

Remarks:

This function works on a DIB, not on a file. You must supply both the encryption method and the password that were used in the call to IG_IP_encrypt().