This function scrambles an image bitmap, or a rectangular portion thereof.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_IP_encrypt (
HIGEAR hIGear,
LPAT_RECT lpRect,
AT_MODE nEncryptType,
const LPSTR lpszPassword
);
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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 accucnst.h for IG_ENCRYPT_METHOD_ constants available. |
| lpszPassword | 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 Professional.
Sample:
FlashPix
Example:
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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" ); |
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Remarks:
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.
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This function cannot take a non-rectangular ROI for its AT_RECT parameter. |