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:% G1 @* U+ r6 P4 g* o9 G w5 F
Name = (WCHAR *) L"Poke";, K/ R4 t( b! S0 \) i( g2 C
& U" M4 _6 h( d9 F; z+ R hr = m_pDisp->GetIDsOfNames ( * s; c2 K3 O' b: ` K9 W/ U5 S$ E IID_NULL, // reserved; N/ v: ^ B) G. U! E o' e) x
&Name, // Array of names to get IDs for ( F I- s6 `) n- Z9 T% B 1, // # of names in the array1 q& R& Y9 \' y! M
LOCALE_SYSTEM_DEFAULT, // System locale G, |4 a$ c/ F- S0 }* h( s# v &pokeID); // Array of IDs to fill on output; e/ ^! _, f: [9 d. p# Z) U. `
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if (hr) I' K( I& v! Z" Z2 d { * V. A$ f. T8 G$ r$ {4 g: v MessageBox ("Get Poke Unsuccessful"); \2 t! | ~) K, O/ [2 Q* w% n return; 8 j6 h4 f6 E4 ] } / c4 u$ Z$ [$ ]; x* q' T a% Q P, [4 M; V
/**************************传递数据给extend**************************************/ 4 o r) n; T$ A$ t" j4 _ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ ^ E% R( F9 K- O+ `
8 r" N5 T# i8 ~! N valueStr = SysAllocString((WCHAR *) L"1232");# r4 R9 d1 n# L( l; [ b
VariantInit(&pokeVariant[0]); 4 a. z( F) B( c S: Q0 m) i pokeVariant[0].vt = VT_BSTR;# k+ c: O6 [3 |, k& S9 ]7 x
pokeVariant[0].bstrVal = valueStr; & \# r3 r6 q! z p6 s9 F5 d: C K2 X6 \5 m5 {. M) v
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 f/ T) Z& D. R8 n2 t- R/ g' _" @ VariantInit(&pokeVariant[1]); % b, z! y! r+ t pokeVariant[1].vt = VT_BSTR; ; ~8 m% K) N* q9 j2 @ pokeVariant[1].bstrVal = itemStr;2 H/ J3 G9 }$ K5 k0 V
# R5 s" Y! e" H3 q topicStr = SysAllocString((WCHAR *) L"system"); w& L. j+ e* f9 s @" g9 x' c
VariantInit(&pokeVariant[2]); + ^8 Y0 u% I* P+ B$ n
pokeVariant[2].vt = VT_BSTR; 2 S" E7 I1 ?* h) l( V: R9 D" f pokeVariant[2].bstrVal = topicStr;$ J* j& l& D4 G' ^) r* a+ p6 i
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// Set the DISPPARAMS structure that holds the variant.3 t' Q1 J+ F" u% ^4 Q1 P5 s# @6 w6 a
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dp.rgvarg = pokeVariant;8 c) j4 |% A7 @( p. Y, W
dp.cArgs = 3;, Q: a, a) _: M$ L, L& l
dp.rgdispidNamedArgs = NULL;; Y' h! D0 D5 T5 I# G
dp.cNamedArgs = 0; s" v* o+ @, J+ h2 F1 j+ [! ^/ o1 I' Y9 S2 Y) Q7 X
// Call IDispatch::Invoke(). h7 T9 A8 O! S9 n6 ~
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hr = m_pDisp->Invoke(! Y; M' y& j% I( l' W- S
pokeID,/ e: [! q, M# E) L8 l8 h I5 Y! `
IID_NULL,* [. W: K; V( b# Q5 T4 d4 X& r
LOCALE_SYSTEM_DEFAULT, 1 O& ?4 H6 V& _' R DISPATCH_METHOD, / S: O+ \" ?# ]! |' e) J &dp," H' p$ F0 ]1 n; }7 c5 }; b0 g
NULL, 8 n& R) ^2 K" \5 @3 b. ^1 M &ei,: a/ C0 y; A6 }5 X. {! I
&uiErr); * i& ^* n u; B1 W( k) |0 K5 a8 ~" ~$ {4 o
SysFreeString(topicStr);8 r4 V3 z6 l8 @4 M/ L; m
SysFreeString(itemStr); ) F5 |2 p1 H. X, u: p SysFreeString(valueStr);- ?( s+ b: `& Q1 \% {
% b6 P; ]+ S5 @% P" m+ r) K: A
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??? 4 \* x- Q, W: b9 _8 j$ t6 L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???? ' X* I! \% V' y' o ( f B9 F0 n% X+ q' t" a L" |/ j, y/ T; ?; |: \( q
2.这是request的程序( q( H* d! M& p" L6 `2 r( p
// Request a value from Extend . W- |0 p% Z, Z7 p$ b/// J0 ?8 S i2 w, Z
// Initialize the variant that will hold the BSTR. Set the variant's ( h. `; l$ P' o" K3 F& Z+ R// type flag to indicate the fact that this variant holds a BSTR. Place the 7 z) _/ T" N1 K6 u& N// BSTR into the variant structure. 9 H b' `6 a* ?' ] ~' o( \% p$ F
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 F1 V( `4 x. B. `: R. ^4 ^ ' P7 X K2 w6 B g: l7 w
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ A; @- Y* _' H4 G! o; v VariantInit(&requestVariant[0]); ; g& J' _! P; r! `: a1 F
requestVariant[0].vt = VT_BSTR;* H+ i% Z# U! M, y& ]( P/ ^
requestVariant[0].bstrVal = itemStr; ( f; M+ x; V9 ? D7 m $ G% ^2 b/ C! q* W% ?6 c, ~+ d topicStr = SysAllocString((WCHAR *) L"system"); 2 `$ O* R* N" D! |- X7 o2 A8 D% A VariantInit(&requestVariant[1]); + K: s- e2 J$ d) x requestVariant[1].vt = VT_BSTR;$ m2 E6 X9 ]: Q/ S" w7 \; ^" \, s
requestVariant[1].bstrVal = topicStr; 8 A1 a+ g/ Z% H $ r% @' T/ }% V* D5 f3 P// Set the DISPPARAMS structure that holds the variant. 4 G$ Z& T% l. R, n/ A) U% q2 n+ p* x9 I
dp2.rgvarg = requestVariant; & o% m0 n n& @3 E( H dp2.cArgs = 2; 9 l, H4 S# E" L6 F# L dp2.rgdispidNamedArgs = NULL;* c" I' y5 T5 K& W# A( q9 p
dp2.cNamedArgs = 0;0 c% a& Y( p; n0 G9 M. m
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var.vt = VT_EMPTY; 6 i+ \, Y( E" j2 v$ t I8 [) B: \0 O 8 d8 A. {0 A# J* a( t& M* g// Call IDispatch::Invoke()8 i+ ~/ x y0 ?9 j* y
% |4 {& d: q" d) G hr = m_pDisp->Invoke(9 e3 d0 S4 y- @+ G5 W5 I( F
requestID, ! z3 d x4 q. q- ?7 z0 B IID_NULL," Y/ [) S5 U6 s" ]4 b1 o; s
LOCALE_SYSTEM_DEFAULT,- J9 O8 y% |* i: m$ K0 B
DISPATCH_METHOD,, i/ ^& j4 l- A1 }0 J ], Y
&dp2, J% b+ j* @9 d b! B &var, `2 X+ [* {+ K7 R
&ei, 4 C& T2 K0 \2 s2 N, C! q9 ? &uiErr); ) b( O0 l% \# h: q+ | 0 J# S, b' Q: n" M9 P* O6 J( ~ SysFreeString(topicStr);( W0 k1 O/ F0 W6 x6 K
SysFreeString(itemStr);) S0 z. {" h1 V5 m e' i8 S
请问该程序是获得extend里面的哪个值?8 I7 ?+ S4 U4 X6 }3 K m6 q3 l0 [
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????