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:! S K6 t, t0 A5 Z) ]
Name = (WCHAR *) L"Poke"; / m% a: _! H* o0 c0 y' t * b" Q8 m; F. x6 n! W1 K9 a
hr = m_pDisp->GetIDsOfNames ( ; b* X2 {( Y5 X+ z6 P( a ], p IID_NULL, // reserved3 Z& M7 v) R9 ]4 ?3 n$ \6 E
&Name, // Array of names to get IDs for8 }9 C4 k8 j$ \& A) M
1, // # of names in the array' U4 p& k' b* r6 ]
LOCALE_SYSTEM_DEFAULT, // System locale+ o( H$ A. ^! Z. F& Q
&pokeID); // Array of IDs to fill on output ( f1 G4 g: v3 }) h! S* \% x% H " v: K" ~: T- h
if (hr)7 {% i2 i! ?% @- K* v9 K9 q
{ 1 _/ f/ B, v; p4 |& y& D& g MessageBox ("Get Poke Unsuccessful");; i: F! {- s2 W$ o
return;9 W6 {" ~! q& A1 L$ }
} . h D3 d0 S/ A0 g# b; I7 c1 c$ U% ^) F5 I( c; C. N2 S
/**************************传递数据给extend**************************************/4 ?6 c% K- j/ u8 D6 L3 E# J
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 |1 S- l1 r/ {$ I . Z' K! [+ Y# U; `
valueStr = SysAllocString((WCHAR *) L"1232"); * b7 e3 _' k0 m! S' s/ O VariantInit(&pokeVariant[0]); ; U/ @' i" a8 j7 o
pokeVariant[0].vt = VT_BSTR; ( G& ^( F) B, V0 J: T$ i/ {! b pokeVariant[0].bstrVal = valueStr;2 Q$ J2 W5 w3 z& e
8 I! b; n' |$ i9 k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) V: E. I: ^0 h& w
VariantInit(&pokeVariant[1]); - U! X, ]# b* F( h( C( |2 c& y& Q2 z' d pokeVariant[1].vt = VT_BSTR;. d$ H J/ h" O% D) w) D" H
pokeVariant[1].bstrVal = itemStr;/ x/ r h0 P5 y Q6 N
+ @$ t4 f; o3 b: H- A topicStr = SysAllocString((WCHAR *) L"system");6 g2 y: S+ W2 C4 ` s+ n9 P
VariantInit(&pokeVariant[2]); , W5 j2 x) v" p0 A% d- } pokeVariant[2].vt = VT_BSTR;# b' Q3 e% Y/ f$ P) c
pokeVariant[2].bstrVal = topicStr;: M" U9 q) `% l1 t( `2 C' p+ ^
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// Set the DISPPARAMS structure that holds the variant.3 O" z9 b! c5 X4 E3 w+ t: z& s
- x: X" l, |" {3 `
dp.rgvarg = pokeVariant;: R2 W k* y% l, n3 k& g& P' N' F
dp.cArgs = 3; " X* O ]. \' @! B dp.rgdispidNamedArgs = NULL; 0 h( F' e4 C1 D& v- C dp.cNamedArgs = 0; + C' q3 }9 | u5 ?) m/ |0 J6 L1 d0 Q0 b6 T9 A( ]
// Call IDispatch::Invoke(), w# x6 p7 z& w& w7 _' }
6 v4 H2 @5 t% F: L hr = m_pDisp->Invoke( # |3 r4 [( T* J6 l9 I1 U V; R6 b" Q pokeID, 3 t- X& X( i ]1 l! G* p: |; e IID_NULL,& m; e. o2 V. M; o
LOCALE_SYSTEM_DEFAULT, 6 J5 k. K. ?* @4 e DISPATCH_METHOD," P: s. z+ Y6 G$ A* `6 w
&dp,9 R: a- j& H3 X H4 c) [; i
NULL,6 a) q) v3 c6 K% B2 i# u5 n
&ei,5 _: w' E5 `0 u6 q
&uiErr);! D' I. y6 G" w4 a ]
7 {5 ]; f2 V7 t; P+ m* ?* r SysFreeString(topicStr); 5 Y) K% B) L) `" H: U, k SysFreeString(itemStr); 0 [2 U* M: w7 s" T* e, Q/ i2 f SysFreeString(valueStr); ' I7 B5 }/ M' I& U n! B % f1 b0 ]. Z6 _/ g7 p C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??? " F) e3 V4 z1 f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???? ) W0 z7 V" x4 F r+ j" F6 r0 _' ~1 H% J- f% }
% p* H/ M6 M; @, S3 L2.这是request的程序 , X$ t7 N3 l" d, D// Request a value from Extend0 Y+ |3 W2 t% d- y5 o' D& v* X7 ~. V
// # x/ E/ |' p0 r# \$ y( X/ r// Initialize the variant that will hold the BSTR. Set the variant's1 z" N! O- m; A- ?5 h7 o
// type flag to indicate the fact that this variant holds a BSTR. Place the0 U4 p3 R7 O6 M9 p; V; k" Z
// BSTR into the variant structure. S% V7 b5 n# y, ?1 S
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! y+ u% ^7 @+ u& [& U ; c6 l5 M4 D/ ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 e5 F: h2 N0 h8 w/ @
VariantInit(&requestVariant[0]); ' S! G9 B5 n5 }' H$ i2 o requestVariant[0].vt = VT_BSTR;5 R6 L7 R8 @ G9 A1 R# w' I+ J
requestVariant[0].bstrVal = itemStr;! O' E1 {5 f! E8 K9 L( }+ i, Z
$ F' \" P5 d$ p4 V: n
topicStr = SysAllocString((WCHAR *) L"system"); $ z* i( g! y' E VariantInit(&requestVariant[1]); ) G/ a1 [" ]6 X6 L" s/ h: K+ R requestVariant[1].vt = VT_BSTR;# c5 {' D4 \% r9 ^
requestVariant[1].bstrVal = topicStr;/ e: N" p& m" k7 L3 }! @+ p
- k# O6 f* G( `$ N! P* }+ Z// Set the DISPPARAMS structure that holds the variant. - v0 L P, m, F& ~0 x; Y$ W! U& l, r
dp2.rgvarg = requestVariant;: `* [: N9 J5 n! V0 F7 U' L; o
dp2.cArgs = 2; 2 o6 E" R" M6 N dp2.rgdispidNamedArgs = NULL; 9 @" a, ]' j, c1 a8 A/ | dp2.cNamedArgs = 0; , d C( h! ~! l; j6 L3 i. ?+ n . N. \$ v- g f0 W' g+ a var.vt = VT_EMPTY;, ~6 Q* a3 K7 q
- E' Y4 J3 G+ s: r5 h% ^% z- r
// Call IDispatch::Invoke() 3 R& j, P' X1 A& [7 P" G# E( T& \' F: L1 |
hr = m_pDisp->Invoke(0 m* q% N( w( L9 v2 p) y3 Y- U
requestID, ! z! s' L$ M V$ i$ n( U IID_NULL,1 f; H8 {+ g6 q& o3 {0 [4 E
LOCALE_SYSTEM_DEFAULT, , ~0 V" c7 U* b DISPATCH_METHOD, & }" {5 s6 C7 X4 V5 }8 Y &dp2,1 e; u4 T" r; j6 F
&var,/ ~; P( d: O9 D$ E. r# L7 ^7 J
&ei, - |4 |& o) X" n* q* }' S &uiErr);) p6 t6 t e. w( Z/ V
8 q3 c4 h; q0 o# c+ l$ J" o SysFreeString(topicStr); - X5 F1 X3 U4 W" e) S SysFreeString(itemStr); + {" j9 ]- l2 T2 \" Q* \, y请问该程序是获得extend里面的哪个值? : f; H8 |3 t/ n; g* e. @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????