Advantech DVP-7020, User Manual

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Adv_VAPI_GetLastError Get the last error code
Adv_VAPI_ErrorMsg Display the last error message if failed
2.2 Programming Functions Reference
There are three programming languages for your reference: C++,
Delphi and Visual BASIC, and also we provides sample
program within our bundle CD.
Adv_VAPI_Init
Syntax
[C++]
BOOL Adv_VAPI_Init(DWORD *pdwVer)
[Delphi]
function Adv_VAPI_Init(var dwVer:Longword):Boolean;
[VB]
function Adv_VAPI_Init (ByRef pdwVer As Long) As Boolean
Parameters
pdwVer : Specifies the pointer of DWORD. It will be
assigned to the version number of this library.
For example, if assigned value 0x10000, it
represents Version 1.00. Now the version is
0x10000,
Return Value
TRUE : Initialization is successful
FALSE : Initialization is failed
Description
This function will initialize and allocate the library variables
and resources. You must call this function before calling other
functions.
Example
DWORD dwVer;
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