Barcode Functions (2D) > VpeRenderDataMatrix

[Professional Edition and above only]

Computes the dimensions of a DataMatrix barcode.

void VpeRenderDataMatrix(

VpeHandle hDoc,

LPCTSTR lpszText,

VpeCoord nWidth,

VpeCoord nHeight,

VpeCoord nModuleWidth

)

VpeHandle hDoc

Document Handle

LPCTSTR lpszText

the text of the barcode

VpeCoord nWidth, nHeight

With these two parameters you can specify a maximum size the barcode can have.

The following rules apply:

•nWidth and nHeight is specified: in this case the maximum rectangle of the barcode will be computed, which will fit into the given rectangle.

•Only nWidth is specified, nHeight is zero: In this case nHeight is computed (nWidth is also computed, i.e. adjusted).

•Only nHeight is specified, nWidth is zero: In this case nWidth is computed (nHeight is also computed, i.e. adjusted).

•nWidth and nHeight are zero: in this case the smallest possible rectangle is computed

VpeCoord nModuleWidth

If this parameter is zero, VPE will choose itself an optimum barcode module width. If it is non-zero, you can specify the width of a barcode module.

Example:

// Compute the smallest possible rectangle for a given text

VpeRenderDataMatrix(hDoc, "30Q324343430794<OQQ", 0, 0, 0)

xsize = VpeGet(hDoc, VRENDERWIDTH)

ysize = VpeGet(hDoc, VRENDERHEIGHT)

// Insert the barcode into the document

VpeDataMatrix(hDoc, 1, 1, -xsize, -ysize, "30Q324343430794<OQQ")

Remarks: