DTWAIN_EnumOrientations

Top Previous Next

The DTWAIN_EnumOrientations function returns the available orientation values that are supported for the Source.

DTWAIN_BOOL DTWAIN_EnumOrientations (

DTWAIN_SOURCE	Source,
LPDTWAIN_ARRAY	lpOrientations );

Parameters

Source

Specifies an open TWAIN Source.

lpOrientations

A pointer to a DTWAIN_ARRAY that will be filled with the available orientation values that are supported.

Return Values

If orientation is supported, TRUE is returned. Otherwise FALSE is returned.

Comments

The DTWAIN_EnumOrientations function takes the open Source Source, and returns to the DTWAIN_ARRAY pointed to by lpOrientations a list of the supported orientations. The DTWAIN_ARRAY stores LONG values. A list of the possible values can be found in Orientation Constants.

TWAIN State Transitions

The source must be opened in State 4

Prerequisite Function Call(s)

DTWAIN_SysInitialize

DTWAIN Source Selection Function