[python-win32] python-win32 Digest, Vol 135, Issue 13

[jh_wang2004]

Hi Tim:     Thanks a lot for you reply. According to the COM document , the function declaration in C++ is    lRet = object.ReadDeviceBlock(szDevice、lSize、*lplData)        Long lRet  (return value, 0 is read success, otherwise is read failed)   Output        CString szDevice (Device register name)  Input       Long lSize (Read data counter) Input       Long *lplData (restore read value from device) Output and Visual Basic .NET is    IRet = object.ReadDeviceBlock(szDevice、iSize、iData(0))        Integer   IRet   (return value)   Output        String   szDevice   (Device register name)   Input        Integer   iSize (Read data counter)  Input        Integer   iData(n) (Read value from device)  Output The COM is provided by device vender, this fuction read a group(block) of data from device and wrire those data to a array. The number of data read from device is second parameter. those data will be restored to a array which first element is the third parameter,  it's a long int pointer. I run the demo program(C++ and VB), those all write data to the array successfully. For read single data from device, the COM provide another function:    lRet = object.GetDeviceValue(szDevice, *lplData)        Long lRet  (return value)   Output        CString szDevice (Device register name)  Input       Long *lplData (restore read value from device) Out
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