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:% H' O+ U1 l4 u. x) E, _9 }" O
Name = (WCHAR *) L"Poke";( M+ s! A2 S; A+ z! i- `1 v
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hr = m_pDisp->GetIDsOfNames ( : v3 ]7 ?; L5 s$ `# D S IID_NULL, // reserved - u, L% J t' q3 B0 _ &Name, // Array of names to get IDs for * V; Q& p/ Z- ^ i6 x+ r; e* J 1, // # of names in the array: i5 A' I7 n+ f
LOCALE_SYSTEM_DEFAULT, // System locale2 a0 }, z) a) Y1 m1 \8 j0 o
&pokeID); // Array of IDs to fill on output2 Z8 B1 o; j6 [( ?
( }( F( _, r X1 m) E if (hr) # I0 ^$ G5 Z7 k {, B3 D+ a* j$ O. V
MessageBox ("Get Poke Unsuccessful");: P7 k" v/ r/ n& i' I
return; / F q/ j9 L& L* E% p } + \! }; A3 C# ]* E / d/ y' {2 p7 g; Z; e% L/**************************传递数据给extend**************************************/ ! q; ~/ R( S$ Q+ W& U pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 `+ \& b. A; a; A3 ` 9 w9 I& o; d- q, X: v9 L
valueStr = SysAllocString((WCHAR *) L"1232"); % ~* @# \- x' m+ F! O$ T/ b7 ~- C VariantInit(&pokeVariant[0]); 9 |& O' d8 K/ d) i6 @$ V* z6 s pokeVariant[0].vt = VT_BSTR; ' J; `6 _# U1 E# b" e pokeVariant[0].bstrVal = valueStr; 2 \5 x/ {7 y! \4 r' {( m3 C: e1 x& P4 L* x( E0 U* \ X8 o
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); N6 S- C0 B/ B4 x# X$ _
VariantInit(&pokeVariant[1]); 2 }# ]2 }( [5 ~) s' ^2 y8 n pokeVariant[1].vt = VT_BSTR; + l+ U5 W I1 K' t) j- t pokeVariant[1].bstrVal = itemStr; P+ t1 [" W. _' r
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topicStr = SysAllocString((WCHAR *) L"system"); . b! }2 b$ H' e2 n- e# s0 E; \1 l3 c6 _ VariantInit(&pokeVariant[2]); % H' H7 l( G; \6 e2 [, a$ E' o pokeVariant[2].vt = VT_BSTR; 7 L5 i; |' C! a pokeVariant[2].bstrVal = topicStr;$ y. g/ }( G3 Z& b- f. l
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// Set the DISPPARAMS structure that holds the variant. # m, W- ^" d, a, i) t6 N5 ^$ x. Z1 w2 Z, e9 [
dp.rgvarg = pokeVariant; 8 U) H0 Z$ z S9 n0 U! q" x* ]3 k dp.cArgs = 3; 5 D5 T% U' Q9 Y1 F dp.rgdispidNamedArgs = NULL;9 K* P+ n! k3 S* Q5 Y( Z9 M( r
dp.cNamedArgs = 0;- C& u' i W+ ?0 T
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// Call IDispatch::Invoke() . S1 D! I+ R$ A& k& M6 J0 } F' C( r
hr = m_pDisp->Invoke(4 b9 z6 a( H [! X: W' ^( N: {
pokeID, * K, {& A/ {1 c5 ]' x% G IID_NULL, ; h' W: e$ m1 \* G$ M LOCALE_SYSTEM_DEFAULT,9 p0 f# z G4 y% I) k( Y6 b! F$ d
DISPATCH_METHOD, / n s4 l' G1 d &dp, : E: }2 S) n2 O' {1 _4 @5 m I NULL," Y$ F8 O0 d/ {2 B
&ei, * X) W$ Z w2 v- ~! E/ A5 P &uiErr);6 M9 c: d0 V+ T( F
0 [& t) p v- E. } SysFreeString(topicStr);4 L, P4 h( u; e3 \% C+ ]
SysFreeString(itemStr);" q. f1 Z/ m; f% `5 l
SysFreeString(valueStr);; F% | H. A D
& W$ _+ t1 {& I U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??? 5 M# L: b4 q* U% U& [8 B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????( |! ^5 V! k! |! a" k6 K
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2 [, Y; B$ e5 `2.这是request的程序 ! c3 p/ F: C4 A5 @// Request a value from Extend 3 B4 I* R0 p/ P" t W// " i- Q9 j3 F M! T// Initialize the variant that will hold the BSTR. Set the variant's8 v2 l' S/ P- U
// type flag to indicate the fact that this variant holds a BSTR. Place the . A( s2 m- L& \# o; J' o i// BSTR into the variant structure. 3 Q% f6 |' X+ B- w5 V$ h( L, U$ K& _& B* s; k ]9 P
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; F w1 @7 E0 s0 R E( P 8 A" M9 l& C+ U$ m \7 ]; T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 Y& G7 ?6 W* r" `4 E+ f VariantInit(&requestVariant[0]); $ P* \! i: v$ Z; D requestVariant[0].vt = VT_BSTR;8 s( B, a3 p' l% O5 U, f5 d
requestVariant[0].bstrVal = itemStr;: ^% V7 F" {8 \# Q. @
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topicStr = SysAllocString((WCHAR *) L"system");" ~* h/ z) a' ?3 l" u
VariantInit(&requestVariant[1]); . F8 J3 n9 X% [8 }3 [) c3 P
requestVariant[1].vt = VT_BSTR; 3 j4 c2 m; D6 Y: E! n7 I" z requestVariant[1].bstrVal = topicStr;6 D5 G1 E/ F( X8 M0 _; _3 k
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// Set the DISPPARAMS structure that holds the variant.( c' y% O7 p0 Q/ I7 G0 C
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dp2.rgvarg = requestVariant;. T3 k' k7 {. ~9 C
dp2.cArgs = 2; 3 z+ k% G0 x. H" T dp2.rgdispidNamedArgs = NULL; ' z) g( P; k4 \. k" _ dp2.cNamedArgs = 0;8 {* @* r/ Q% b6 \9 W4 {4 e
0 d9 X( Q8 l; P; F var.vt = VT_EMPTY;8 M+ }; J8 L1 O) }* a
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// Call IDispatch::Invoke(): e' q! }( p+ u
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hr = m_pDisp->Invoke( 0 M% g/ R, C' l/ U6 V requestID, - W; \! Z5 v" t: V4 M IID_NULL,% E/ `+ V: R0 C
LOCALE_SYSTEM_DEFAULT,; b: [3 |/ j: j; y& c
DISPATCH_METHOD, 1 Q" v( `- R5 A: P0 ^3 a &dp2,9 v% N$ ]6 H$ K& G5 Y: `; [
&var, : D `4 q) K# m &ei,' r. K+ @# S% G: m
&uiErr); . h4 j) u& A9 V) S# o% A% ^/ f0 I! r! t$ C/ R9 J- `
SysFreeString(topicStr); ' f3 }# y* }2 H$ Q% l SysFreeString(itemStr); # Q6 y" C* J& X$ Z请问该程序是获得extend里面的哪个值?. m& n0 X; q) k- l; T. C9 K* O. |: Y
如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????