ProcUnit::TmpDataAlloc

Allocates temporary work data space

BYTE *TmpDataAlloc(
   int  size
);

Parameters

size	Size to be allocated as a workspace

Return Value

Returns the starting address of the workspace, when the workspace is successfully allocated.

Returns NULL when the workspace could not be allocated.

Description

Allocates a workspace of the size specified by the argument.

This space is mainly used in the measurement processing of processing items to allocate the memory area when you need to store work data temporarily.

Do not use the memory space allocated by this method for storing the data which needs to be retained (even after finishing the measurement).

When the memory space allocated by this method is no longer needed, be sure to release the space by using TmpDataFree() method (see "

ProcUnit::TmpDataFree").

The 10 MB space is allocated as a temporary workspace. You cannot allocate the space greater than 10 MB.

Example

   int Sample::MeasureDispI(ProcUnit *ptrProcUnit, int subNo, ImageWindow *ptrImageWindow)
    {
        BYTE *ptrTmp;
        BYTE *ptrMeasureImage;
        BYTE *ptrImage1;
        BYTE *ptrImage2;

        // Allocate the temporary workspace

        ptrImage1 = ptrProcUnit->TmpDataAlloc(640*480*3);
        ptrImage2 = ptrProcUnit->TmpDataAlloc(640*480*3);
        ptrMeasureImage = ptrProcUnit->GetMeasureImage(0);

        if (subNo == 0) {

            // Convert the ptrMeasureImage image, and store it in the temporary workspace


            // Display the image stored in the temporary space

            ptrImageWindow->ImageDisp(ptrImage1);

        } else {

            // Convert the ptrMeasureImage image, and store it in the temporary workspace


            // Display the image stored in the temporary space

            ptrImageWindow->ImageDisp(ptrImage2);

        }

        // Release the temporary workspace

        ptrProcUnit->TmpDataFree(ptrImage2);
        ptrProcUnit->TmpDataFree(ptrImage1);
    }