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DTWAIN_EnumExtImageInfoTypes |
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The DTWAIN_EnumExtImageInfoTypes function fills a DTWAIN_ARRAY with all of a Source's supported extended image information types.
DTWAIN_BOOL DTWAIN_EnumExtImageInfoTypes (
Parameters Source Specifies an open TWAIN Source.
Array A pointer to a DTWAIN_ARRAY that will contain the types.
Return Values If the function succeeds, TRUE is returned. If the function fails, FALSE is returned.
Comments The DTWAIN_EnumExtImageInfoTypes function fills the DTWAIN_ARRAY pointed to by Array with all of the extended image information supported by the Source. This function can only be called when the DTWAIN_TN_TRANSFERDONE notification is sent, therefore this function is only available for languages that support callback functions or can intercept messages using a window handle.
If the return value for DTWAIN_EnumExtImageInfoTypes is FALSE, the Source may not support querying for extended image information. The DTWAIN_ARRAY type that is used is to store the capability constants is DTWAIN_ARRAYLONG. The values stored in the array correspond to the values found in the Extended Image Information constants.
TWAIN State Transitions The source must be in State 7
Prerequisite Function Call(s)
DTWAIN Source Selection Function
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