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: y0 V. z7 ]+ O
Name = (WCHAR *) L"Poke"; $ O/ {* l$ H; M( n$ j3 {. L ! O, m2 T s" a3 x, M1 Y4 g# h
hr = m_pDisp->GetIDsOfNames ( 5 Z2 Z6 |% y4 x6 G. X; s IID_NULL, // reserved4 Y& z6 C& f* v0 x. S
&Name, // Array of names to get IDs for5 P- s5 T# Z6 Q
1, // # of names in the array # y3 Y) E) S2 i& v/ u LOCALE_SYSTEM_DEFAULT, // System locale1 w$ T3 t2 W7 O
&pokeID); // Array of IDs to fill on output $ K: L1 ^+ c8 p2 M( ^ % `+ ]2 x& W- r0 D; ?: ]( t
if (hr)2 \; l3 g! b, ?; H
{ : o( `, J0 e2 t+ u+ } MessageBox ("Get Poke Unsuccessful");! Z5 `7 k4 M7 O" }$ D! L
return;. x1 k) B, {4 p1 j% p" c" b% L" O7 ~6 G
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/**************************传递数据给extend**************************************/8 v& J8 X2 t2 X( n8 l# i! f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 G- D N! t) m, Q3 o1 B
% @0 I* d4 U. ]* W8 V0 M valueStr = SysAllocString((WCHAR *) L"1232"); 7 h, T- b- Z5 i- H/ e! t: t VariantInit(&pokeVariant[0]); ) Y8 g b; K$ ~ pokeVariant[0].vt = VT_BSTR;2 O$ t# A b9 O9 j
pokeVariant[0].bstrVal = valueStr; , a l6 ^6 a2 h 1 p! F" b7 Q' d! n# N) T% ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' f' W. z- |* h r VariantInit(&pokeVariant[1]); ( C! U$ X2 S& U, D: H. S" i) F
pokeVariant[1].vt = VT_BSTR;( J8 m( `. U, P( `; Q8 L& z% A$ H
pokeVariant[1].bstrVal = itemStr;/ Q( X( E% e; k- `! v* \% N8 z
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topicStr = SysAllocString((WCHAR *) L"system"); . V* w0 ^0 X3 U4 G# q# y6 l! N5 } VariantInit(&pokeVariant[2]); 1 `9 o" j* }& u9 ]1 Z pokeVariant[2].vt = VT_BSTR; : y0 y! Y- c" R' b- d. |3 t pokeVariant[2].bstrVal = topicStr;: o& r/ n) ?2 Y4 G, t& t
+ x3 j8 j/ w5 Q3 \8 G( w// Set the DISPPARAMS structure that holds the variant.- u7 j+ j: X U2 ]' a. B5 A
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dp.rgvarg = pokeVariant;* t9 L4 U: Y# e( C9 A0 f) a
dp.cArgs = 3;2 j* d( _1 d3 }7 |
dp.rgdispidNamedArgs = NULL; V! i' ~" d! W0 g, W _7 b
dp.cNamedArgs = 0; # c# M- C* o! P% @1 m) D0 k4 Z+ k4 ^( p" o( F
// Call IDispatch::Invoke() 9 {, M" {& h4 L' j8 H0 P/ s 0 a) T5 u6 l, `, W8 f( }4 E% I- a, {: G+ o hr = m_pDisp->Invoke( ( F! S, o% p* j. H pokeID,- x. N$ e1 e1 h/ h" j# ?7 X
IID_NULL," L' {% a% A. k% q
LOCALE_SYSTEM_DEFAULT,% E6 ?5 C& D. h$ R9 T
DISPATCH_METHOD, ; a6 Y- U" Z, H &dp, / f, y4 P' I1 s, m1 _" m NULL, 9 D2 @& g6 {. L8 z+ ~' ~ &ei,3 N: A) v" {! o) f% N
&uiErr); : ?6 }- A8 p( D4 _, R% ]% T. X0 e5 F! i
SysFreeString(topicStr); ' C/ \( o) p9 h0 W SysFreeString(itemStr); * c' I, O* G: e( R1 e SysFreeString(valueStr);3 C/ |& C1 B% ^* A* M2 D
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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??? ; ~' M) H) S+ k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????6 T% g& y6 p5 P3 G6 ` R+ |- P
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" s# w, w! ~1 E) ?6 s' h( y( `2.这是request的程序; n& S* A: {! P Z! z- J
// Request a value from Extend " E# W8 U5 d4 v7 q// ) P0 R" F2 u2 Y" g5 N1 \// Initialize the variant that will hold the BSTR. Set the variant's$ s `# i% J/ ?& ~1 ~8 p X: [
// type flag to indicate the fact that this variant holds a BSTR. Place the 6 o: ~- P) f8 l// BSTR into the variant structure. 5 P; ] d+ ]! N0 P) P: C: C+ v+ s6 l+ U& I4 L I
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 r, j* k( f! B' L9 H ?' {% g6 H 5 n3 g& b. Q- n# }* X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 B, T+ S R h VariantInit(&requestVariant[0]); ) {7 C! t. L' w5 T% j3 T
requestVariant[0].vt = VT_BSTR;3 u: u/ e# B8 v5 \0 G
requestVariant[0].bstrVal = itemStr;0 |9 D g! A2 D& D- n
4 t) @. Y* c5 P topicStr = SysAllocString((WCHAR *) L"system"); 3 L/ G2 e k7 |! F: t; | VariantInit(&requestVariant[1]); ) B1 C) V( {' T0 A( B
requestVariant[1].vt = VT_BSTR; / x; [( `6 V% U6 Q requestVariant[1].bstrVal = topicStr; `! L$ \& X2 ?# v
6 W- S6 K+ `) p& W4 s y n" A// Set the DISPPARAMS structure that holds the variant. $ p' r. i* x$ n4 a5 n; ?/ f( w2 A. B4 Q, |7 H" P1 r' K
dp2.rgvarg = requestVariant;' }1 D+ u- z o& Y
dp2.cArgs = 2; ' H7 N- k: I$ J% ~ dp2.rgdispidNamedArgs = NULL; V+ q+ ^4 O; X' ^8 y2 N
dp2.cNamedArgs = 0; 7 \* H/ w J- q2 u3 [! n; A! w& [
var.vt = VT_EMPTY;7 B! k% B( ~7 D( d9 R$ D. W) i0 P
1 D# d! p" p2 o9 V// Call IDispatch::Invoke() 1 r# b9 Q# R9 q5 D % M. ] v( Z6 }% k- ]' B; ? hr = m_pDisp->Invoke(3 L/ R' @2 ]! C
requestID,+ |0 F) z; d) B1 Q* D' Y
IID_NULL,/ X X3 ?5 r' \/ {
LOCALE_SYSTEM_DEFAULT, & u2 R6 N* D% ` DISPATCH_METHOD, ( o$ V( |. S8 o4 p, k, W" }8 ?6 { &dp2, & y6 d5 g7 s; u( c+ l, t' U &var,4 \: ]/ m3 L5 w4 a C
&ei,% y8 `2 [/ v# }/ M
&uiErr); % a; R' w0 w: x6 S, p# r/ ~! \! w8 F6 V; Z) x/ E* Q4 W. U
SysFreeString(topicStr);0 B$ h" K6 h# H) X* s" ^/ U8 o5 o
SysFreeString(itemStr); , P. k1 y4 S$ b V0 Y请问该程序是获得extend里面的哪个值? 7 a/ j- U0 ~) C1 h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????