IG_IP_encrypt

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Group: Image Processing

Declaration:

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

Arguments:

hIGear	HIGEAR handle of image to be encoded
lpRect	Far pointer to an AT_RECT struct specifying the rectangular portion of the image to encode. Set = NULL for the whole image.
nEncrptyType	An IG_ENCRYPT_METHOD_ constant specifying the method to be used. See file Gear.h for IG_ENCRYPT_METHOD_ constants available
lpszPassword	Far pointer to your zero-terminated password string

Description:

This function scrambles an image bitmap, or a rectangular portion thereof. Your password is also stored. To later decode the image using IG_IP_decrypt(), you will need to know both the encryption method and the password used in this call.

Bits Per Pixel: 1, 4, 8, 24

Return Value:

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

NOTE: This function cannot take a non-rectangular ROI for its AT_RECT parameter.

Example:

HIGEAR		 hIGear; 

 

/* Encrypt the whole hIGear image by method A & with "Top Secret" password   */  

IG_IP_encrypt ( hIGear, NULL, IG_ENCRYPT_METHOD_A, "Top Secret" ); 

Sample: FlashPix