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DTWAIN_SetRotation |
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The DTWAIN_SetRotation function sets the current rotation value for the Source.
DTWAIN_BOOL DTWAIN_SetRotation (
Parameters Source An open TWAIN Source.
Resolution The rotation value to set the Source.
Return Values The return value is TRUE if successful. Otherwise FALSE is returned.
Comments The DTWAIN_SetRotation function sets the current rotation value for the Source, Source. The Rotation argument denotes the rotation value of the acquired image. Note that some Sources do not support a rotation setting, so the return value for DTWAIN_SetRotation will always be FALSE. To test if a Source supports setting the rotation, call DTWAIN_IsRotationSupported..
If the rotation value is out of range of the Source, DTWAIN will choose the closest rotation value that the Source regards as valid. The rotation is the rotation angle between -360 and +360 degrees for the images that will be acquired by the TWAIN device.
To get the current rotation value, call DTWAIN_GetRotation
For languages that have difficulties with DTWAIN_FLOAT parameters, the alternate function that can be used as a replacement for DTWAIN_SetRotation is DTWAIN_SetRotationString.
TWAIN State Transitions The Source must be in State 4. or higher
Prerequisite Function Call(s)
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