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Ok thanks - I just thought that there might be some complications due to memory movement / address spaces etc. &nbsp;Good to hear its ok.
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Is it OK to call a dll from within an activeX (built with vc++). &nbsp;Is there anything to watch out for, or anything unusual that I need to watch out for? &nbsp;Is it exactly the same as calling a dll from a regular window app?<br />
<br />
PS. I plan to build my dll using delphi 4 and declare the functions 'stdcall' calling convention. &nbsp;And I plan to use LoadLibrary and GetProcAddress from within the VC++ active X.<br />
<br />
e.g.<br />
&nbsp; &nbsp; HINSTANCE hDLL;<br />
&nbsp; &nbsp; FARPROC ProcAdd;<br />
<br />
&nbsp; &nbsp; hDLL = LoadLibrary(&quot;a1.dll&quot;);<br />
&nbsp; &nbsp; ProcAdd = GetProcAddress(hDLL,&quot;ANDY0<wbr />&quot;);<br />
&nbsp; &nbsp; if (ProcAdd == NULL) return 0;<br />
&nbsp; &nbsp; ProcAdd; &nbsp; &nbsp;// call to dll<br />
<br />

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Is it OK to call a dll from within an activeX (built with vc++).  Is there anything to watch out for, or anything unusual that I need to watch out for?  Is it exactly the same as calling a dll from a regular window app?

PS. I plan to build my dll using delphi 4 and declare the functions 'stdcall' calling convention.  And I plan to use LoadLibrary and GetProcAddress from within the VC++ active X.

e.g.
    HINSTANCE hDLL;
    FARPROC ProcAdd;

    hDLL = LoadLibrary("a1.dll");
    ProcAdd = GetProcAddress(hDLL,"ANDY0");
    if (ProcAdd == NULL) return 0;
    ProcAdd;    // call to dll



Ok thanks - I just thought that there might be some complications due to memory movement / address spaces etc.  Good to hear its ok.

calling dlls from activex - ok to do?

Is it OK to call a dll from within an activeX (built with vc++).  Is there anything to watch out for, or anything unusual that I need to watch out for?  Is it exactly the same as calling a dll from a regular window app?

PS. I plan to build my dll using delphi 4 and declare the functions &#39;stdcall&#39; calling convention.  And I plan to use LoadLibrary and GetProcAddress from within the VC++ active X.

e.g.
    HINSTANCE hDLL;
    FARPROC ProcAdd;

    hDLL = LoadLibrary(&quot;a1.dll&quot;);
    ProcAdd = GetProcAddress(hDLL,&quot;ANDY0&quot;);
    if (ProcAdd == NULL) return 0;
    ProcAdd;    // call to dll



C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.