我现在用c++编写了一个程序,希望能够和extend交换数据,以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序,但搞得不是很懂。比如说,c++程序向extend发送一个数据:/ N) i9 O- ^( f4 f
Name = (WCHAR *) L"Poke"; ) w3 W8 ^# A* ?* E+ i r# u5 @ : j7 l. p. D) E6 v0 `9 e0 q2 S
hr = m_pDisp->GetIDsOfNames ( * k+ O7 O0 b; R% f IID_NULL, // reserved 3 H4 L/ `; N" J( M& J6 h8 ~: ?6 Z2 v &Name, // Array of names to get IDs for1 T+ R: ^* I' }
1, // # of names in the array . F( ~0 f1 Q4 } LOCALE_SYSTEM_DEFAULT, // System locale * W9 T! l3 I* N! p. ~' H &pokeID); // Array of IDs to fill on output # r- Y5 I$ q9 J, t/ Y ) j; C& y% M/ m( D b) o* g R# h if (hr) ! h7 U7 q2 Y/ Q6 W! h9 i. ~ {* B; [% i) e3 n% F5 v" D3 H% d$ L
MessageBox ("Get Poke Unsuccessful"); 0 M) ]+ m' _0 ^* ?" X B" i' M return;& g7 {5 W9 E( |6 P& L- X
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2 R( J5 S+ K3 ?, i7 d0 C! I/**************************传递数据给extend**************************************/ 4 A8 e2 W3 C, [: W S: k" t pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 r& J4 @4 ^2 o9 m 7 F1 ^' V6 T) D, w valueStr = SysAllocString((WCHAR *) L"1232");0 J4 w9 y) {2 Y* U
VariantInit(&pokeVariant[0]); / ]$ v" d3 b$ [1 P% } pokeVariant[0].vt = VT_BSTR;" |7 |+ ?% d3 Z M( g: \& f H& ~; E5 z
pokeVariant[0].bstrVal = valueStr; ) t2 R) v' c8 M5 H u* c3 t. J* r3 L: Q7 e; ?2 c' {4 f7 h
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. Z9 Q) h0 ]& |) ]$ I
VariantInit(&pokeVariant[1]); Q, [& u2 b/ {' N; @% i3 r pokeVariant[1].vt = VT_BSTR; 9 T" m1 B! L$ F" d2 Q. ` pokeVariant[1].bstrVal = itemStr;, N: _2 w* k! [4 {
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topicStr = SysAllocString((WCHAR *) L"system");% x& n; g7 e3 b. Z
VariantInit(&pokeVariant[2]); , I/ z! ~ N' R pokeVariant[2].vt = VT_BSTR;& l; |+ M, ^' y0 l- f: }
pokeVariant[2].bstrVal = topicStr; & z! V$ J h: B/ r* ?& K$ _ 8 ~3 q# D C$ i! [: {! ~0 _// Set the DISPPARAMS structure that holds the variant. 2 h1 I9 [1 B0 R4 q9 h m, J, f 8 a0 N; u. z9 F0 {6 j$ K dp.rgvarg = pokeVariant;/ d3 z' J! f. b) g
dp.cArgs = 3; 6 L9 N9 _0 @$ d dp.rgdispidNamedArgs = NULL;& y1 i/ j6 V$ K( q7 I/ T& w
dp.cNamedArgs = 0;1 Y3 C( {8 ~" r9 R( M8 W" l
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// Call IDispatch::Invoke()! u! ~7 D3 _/ y" u0 k v
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hr = m_pDisp->Invoke( 5 Y4 Z3 G9 c. P5 p pokeID,8 M4 r0 K( R; @1 x' F3 ]
IID_NULL,- S# T) {3 t' l9 V5 Z+ x+ \1 ^
LOCALE_SYSTEM_DEFAULT, 6 G' X8 J7 e3 ]1 r. ] DISPATCH_METHOD, + C" \9 U* Y/ X) [5 U, ?7 k: v &dp, 6 o* |5 T+ F& |3 G/ k NULL,5 O% h( m( M( c- @
&ei, . o; _8 Q, g4 a* o+ T/ z7 X! W &uiErr);0 _9 W5 D8 _. j) ]% j! }
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SysFreeString(topicStr);( ^/ ~; q, i/ ]$ w+ h# n) o8 v
SysFreeString(itemStr);4 {4 ^' ~6 o7 B9 H$ f
SysFreeString(valueStr);: }" F2 f! H- j. L
$ A2 Q& w$ X$ Y4 `9 V$ _& z现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据???% V" d# t2 \# V/ o' ]/ H. @
此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现???? ( F- }: ~# y8 Z1 L4 F. _) ]# p' ~: ^. L8 T, I
]8 \3 `! A* m! E. E ^3 H( D2.这是request的程序 5 a- i4 t( v/ h$ z4 I# V0 u// Request a value from Extend6 f) Y6 G; X! N1 C+ v9 I9 x7 i
// l, a( P/ K% z* |+ d/ S// Initialize the variant that will hold the BSTR. Set the variant's& q& S! o8 x% J6 ^) q
// type flag to indicate the fact that this variant holds a BSTR. Place the+ d4 t# o1 R k8 t
// BSTR into the variant structure. B7 N/ N6 V; z' j: ]. v m
8 Y! C3 f. [0 \2 f% I8 G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - E5 k! N1 {2 J7 K! ~ VariantInit(&requestVariant[0]); 3 y/ X8 w( q$ y2 U4 e* E requestVariant[0].vt = VT_BSTR;; {* n& C' z* Y" e+ n( N4 i4 a3 S
requestVariant[0].bstrVal = itemStr;, Q# Z" e* F3 _( l9 g6 E/ f
: s0 g/ ]0 N. b" A topicStr = SysAllocString((WCHAR *) L"system"); 8 R. o6 v" a' [ VariantInit(&requestVariant[1]); 4 ?* j- D M# m1 s
requestVariant[1].vt = VT_BSTR;; V9 \" n5 `- S
requestVariant[1].bstrVal = topicStr; ) \# D) ^. s: Y 6 P/ H0 b6 z3 F2 I// Set the DISPPARAMS structure that holds the variant.& d- g* T8 } S7 U% e