IGR_Canvas_Rotation¶

IGR_Canvas_Rotation sets the rotation to be applied for subsequent drawing methods.

Prototype¶

C/C++

IGR_LONG IGR_Canvas_Rotation(
    HCANVAS canvas,
    IGR_LONG degrees,
    Error_Control_Block* error);

Canvas: HCANVAS

Handle to a canvas, opened by a call to IGR_Make_Output_Canvas.

Degrees: IGR_LONG

The rotation angle to be applied, in radians.

Error: Pointer to Error_Control_Block

Returns error details if the call fails.

Success: IGR_LONG

Returns IGR_OK.

Failure: IGR_LONG

Returns one of the possible IGR_E error codes.

Note The drawing API is available for bitmap and PDF outputs only. Drawing onto an HTML5 output is not supported.