Customized Drawing (Callbacks)

The standard functionality of TBarCode for drawing/saving barcodes may be customized with these call-back functions. More...

Functions
fn_DrawRow _stdcall	BCGetFuncDrawRow (t_BarCode *pBarCode)
	Gets call-back function for drawing a single row of a barcode.
ERRCODE _stdcall	BCSetFuncDrawRow (t_BarCode *pBarCode, fn_DrawRow fn)
	Sets the callback function for drawing a single row of a barcode.
fn_DrawBar _stdcall	BCGetFuncDrawBar (t_BarCode *pBarCode)
	Gets call-back function for drawing a bar.
ERRCODE _stdcall	BCSetFuncDrawBar (t_BarCode *pBarCode, fn_DrawBar fn)
	Sets call-back function for drawing the bars of a barcode.
fn_DrawColoredBar _stdcall	BCGetFuncDrawColoredBar (t_BarCode *pBarCode)
	Gets call-back function for drawing a colored bar.
ERRCODE _stdcall	BCSetFuncDrawColoredBar (t_BarCode *pBarCode, fn_DrawColoredBar fn)
	Sets call-back function for drawing colored bars.
fn_DrawRing _stdcall	BCGetFuncDrawRing (t_BarCode *pBarCode)
	Gets call-back function for drawing a MaxiCode finder ring.
ERRCODE _stdcall	BCSetFuncDrawRing (t_BarCode *pBarCode, fn_DrawRing fn)
	Sets call-back function for drawing the MaxiCode finder rings.
fn_DrawHexagon _stdcall	BCGetFuncDrawHexagon (t_BarCode *pBarCode)
	Gets call-back function for drawing a MaxiCode hexagon.
ERRCODE _stdcall	BCSetFuncDrawHexagon (t_BarCode *pBarCode, fn_DrawHexagon fn)
	Sets call-back function for drawing the MaxiCode finder rings.
LPVOID _stdcall	BCGetCBData (t_BarCode *pBarCode)
	Gets the user-defined data that is passed to the callback functions.
VOID _stdcall	BCSetCBData (t_BarCode *pBarCode, LPVOID customData)
	Sets the user-defined data that is passed to the callback functions.
ERRCODE _stdcall	BCDrawCB (t_BarCode *pBarCode, HDC hDC, RECT *pRectBounding)
	Callback version of barcode draw function.
COLORREF _stdcall	BCGetColorFromMetaData (t_BarCode *pBarCode, INT chMeta)
	Converts a single meta character returned by BCGetMetaData into a corresponding color value.
fn_DrawTextA _stdcall	BCGetFuncDrawTextA (t_BarCode *pBarCode)
	Gets call-back function for drawing a text Returns currently adjusted function pointer.
fn_DrawTextW _stdcall	BCGetFuncDrawTextW (t_BarCode *pBarCode)
	Gets call-back function for drawing a text Returns currently adjusted function pointer.
ERRCODE _stdcall	BCSetFuncDrawTextA (t_BarCode *pBarCode, fn_DrawTextA fn)
	Sets call-back function for drawing the human readable text of a barcode.
ERRCODE _stdcall	BCSetFuncDrawTextW (t_BarCode *pBarCode, fn_DrawTextW fn)
	Sets call-back function for drawing the human readable text of a barcode.
LPCSTR _stdcall	BCGetMetaDataA (t_BarCode *pBarCode)
	Returns meta-representation of a barcode.
LPCWSTR _stdcall	BCGetMetaDataW (t_BarCode *pBarCode)
	Returns meta-representation of a barcode.

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Detailed Description

The standard functionality of TBarCode for drawing/saving barcodes may be customized with these call-back functions.

For simple barcode generating/barcode printing applications these call-back functions are not required.

Note:

: A valid license is required to test the callback functions. Callback functions are disabled without a valid license.
Temporary licenses for testing are available from mailto:office@tec-it.com.