DTWAIN_GetAcquireArea2String
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The DTWAIN_GetAcquireArea2String function gets the current image acquisition area.
DTWAIN_BOOL DTWAIN_GetAcquireArea2String (
Parameters Source An open TWAIN Source.
lpLeft Indicates upper left of rectangle to acquire.
lpTop Indicates top of rectangle to acquire.
lpRight Indicates right of rectangle to acquire.
lpBottom Indicates bottom of rectangle to acquire.
lpUnit Unit of measure used to describe left, top, right, and bottom of rectangle
Return Values The return value is TRUE if successful. Otherwise FALSE is returned.
Comments The DTWAIN_GetAcquireArea2String function works exactly the same way as DTWAIN_GetAcquireArea2, with the exception of the lpLeft, lpTop, lpRight, and lpBottom parameters are string buffers that will be filled on return with the rectangle's values instead of DTWAIN_FLOAT parameters. See DTWAIN_GetAcquireArea2 for more details.
The LPTSTR arguments must point to a buffer large enough to hold the necessary string information. The string information will not exceed 255 characters.
TWAIN State Transitions The Source must be in State 4. or higher (depending on the capability).
Prerequisite Function Call(s)
DTWAIN Source Selection Function
See Also |