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: - Y7 ?. A) b, nName = (WCHAR *) L"Poke";# }: N' Y: {/ j3 v, [1 O! j. N* b/ w
+ v' v- O! x4 T: W
hr = m_pDisp->GetIDsOfNames ( . Z5 J1 o' X, _' R1 B* Y: N IID_NULL, // reserved 0 J8 R- s. L" `6 [& L. N7 q &Name, // Array of names to get IDs for " S0 C, z5 K: N) i: h% C4 H 1, // # of names in the array: k8 \2 M, q! l8 `' |- K8 e
LOCALE_SYSTEM_DEFAULT, // System locale 3 o& F- }! Q7 I( f+ I9 ~ &pokeID); // Array of IDs to fill on output9 }- i P& ^2 _. ?
: L% y/ G- S2 ?/ `" u if (hr)& N% U+ n; c4 T+ m
{ 5 p# W5 e [( ]1 o* @1 r MessageBox ("Get Poke Unsuccessful");: _1 [9 @, ~& J) p& `
return; # `0 w! q* }! o" _- ?4 ~ }' }0 v; r% A2 M7 S2 Q/ |
1 E$ y$ P( U K8 H; T$ ?
/**************************传递数据给extend**************************************/ ' C' e! [) n7 ]' C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* D4 a6 B3 ^5 i j+ L- ?! _
- r" T8 h$ G e1 \9 Q valueStr = SysAllocString((WCHAR *) L"1232"); # j# F8 W) ~* x: \( h VariantInit(&pokeVariant[0]); % D1 ?7 n3 E3 z3 `
pokeVariant[0].vt = VT_BSTR; + r# R a" Z- H0 J; N pokeVariant[0].bstrVal = valueStr;' {& B4 e' H! f1 I
: O9 v1 {0 i" B5 \& Z( i
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - S% t0 E( X- c: H! X) | VariantInit(&pokeVariant[1]); 6 v" V0 s' g9 y/ |( w pokeVariant[1].vt = VT_BSTR; # z: t2 E; l% Y8 G" z6 h pokeVariant[1].bstrVal = itemStr;6 m6 h5 [( y @) A. H
- U0 O; u6 K h9 Y& f topicStr = SysAllocString((WCHAR *) L"system");+ @7 p. Q# {( D& Z& q
VariantInit(&pokeVariant[2]); ( [' T5 ]6 n# t f: e( j pokeVariant[2].vt = VT_BSTR; + S6 ~: K' P4 l- o/ W7 E pokeVariant[2].bstrVal = topicStr; : J& o$ Q1 P/ f$ t: W + O/ @, I' y$ X% ?0 s- U$ B1 d+ T& o5 t// Set the DISPPARAMS structure that holds the variant. : [; d4 l. P8 x# ?# @3 T 4 p' L% { _, d+ M/ Y- A dp.rgvarg = pokeVariant;+ ~1 A. f7 F6 l6 e
dp.cArgs = 3; 9 ~* g! t0 L; p! W) H dp.rgdispidNamedArgs = NULL; 2 v9 j7 @' W% {! @+ c dp.cNamedArgs = 0; / G) ?7 Z4 a" U% t( {1 s; w" Y) t
// Call IDispatch::Invoke()0 W# B% e6 x; W( n
5 ~: E: }; k/ ? hr = m_pDisp->Invoke( ; v) j2 u( S" a% l1 t pokeID, ! b( N1 W9 X& D, L$ u. T IID_NULL, $ @" P5 |4 @$ Q4 S+ X7 |" _0 j LOCALE_SYSTEM_DEFAULT,/ ?& ^+ I" X& E+ L& G5 b1 W
DISPATCH_METHOD, . q$ ]. s5 ]/ A" S( L" N" m$ m: x: q5 E &dp, 2 e$ S* y3 n7 L d NULL,! T* X! C. O1 W0 w" g9 z2 V
&ei, u9 ], [9 T) D! [ X* w
&uiErr);: l; e$ P+ t0 H; `% n/ |& n3 G: O
, X5 D1 Y0 p' `9 _( z8 }" e
SysFreeString(topicStr);* B0 a) m7 l" e2 @
SysFreeString(itemStr); % t5 q- d5 M4 y3 A/ h" v SysFreeString(valueStr); 1 D& m$ _4 D& }8 T 0 ]% o8 h8 {0 s6 B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???0 F& X5 Z" e: y0 x- {
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???? / H; W' J- G, e& k/ |$ G3 [3 ?5 y% y5 ]# B, `5 K
' U3 Z* y# b) `! i
2.这是request的程序 " r7 E+ d( l. p: A: w// Request a value from Extend" ?( F) a" a# D0 l& V
//" ~, z; T2 Q5 j6 }
// Initialize the variant that will hold the BSTR. Set the variant's N$ u# n3 R( ^: H ] F& L
// type flag to indicate the fact that this variant holds a BSTR. Place the 0 k: b& L' h5 |% z// BSTR into the variant structure.+ K4 e V; ]; C2 N
9 b/ m2 N/ {7 |1 K6 a- ?- H! h; c: o
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ b1 a8 p9 _1 W5 I5 @+ R3 |' T. `
+ M U& p u/ [' c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 w( c s% }; h1 u6 T' }( y# F* f
VariantInit(&requestVariant[0]); $ v6 |5 y' d4 d6 U# G" m+ K
requestVariant[0].vt = VT_BSTR; * g( h; b& E) |, e" x requestVariant[0].bstrVal = itemStr; $ n; y* o1 c8 B/ g: e+ f; i$ N+ S. l$ r, A& w' t3 S% e
topicStr = SysAllocString((WCHAR *) L"system");2 w, }! @& w K7 C; M
VariantInit(&requestVariant[1]); 6 ?: `9 |3 }1 J( X requestVariant[1].vt = VT_BSTR;) N+ D: q9 e% e8 k) |) z% Q0 n
requestVariant[1].bstrVal = topicStr; : O+ b" g( k9 ^$ j$ ]6 I: F7 x 9 U+ w. ?: ^6 W9 ~: F/ Q// Set the DISPPARAMS structure that holds the variant. # C+ w9 P+ p# j , ]; ]% t5 B0 [ dp2.rgvarg = requestVariant;3 B) i8 p: A+ |6 f* }
dp2.cArgs = 2;0 o+ f" h3 B" e( l& ]" S
dp2.rgdispidNamedArgs = NULL; h* {. {; H1 i; V- d- Q- O
dp2.cNamedArgs = 0; ( [5 f6 s$ b( k1 p- e, t9 U0 j5 M2 h+ E) |& r
var.vt = VT_EMPTY; : l9 m) i3 A* h% \/ [) R/ h4 U6 K6 J+ [: m
// Call IDispatch::Invoke()8 n# h; H& V+ _9 ?& p7 S6 J; I
* o$ h) N% x7 W$ r! `
hr = m_pDisp->Invoke( : c0 G, _, J: I$ \! L/ Z, [6 z3 p! q requestID, * i, j- U6 ?* N5 M IID_NULL, ( v' r9 u2 T- _2 `) u" n$ ] LOCALE_SYSTEM_DEFAULT,% O; j8 r$ w) p; H# O/ x8 |
DISPATCH_METHOD, % q- ^) q. [& f &dp2,3 [8 k* l$ F0 O+ W! e- o7 _
&var, , l3 C% M: _9 I0 q$ B &ei, % V& @9 F$ u+ d- g5 u &uiErr);+ \6 P A8 r3 x/ X) q2 B
3 I. @# ]4 l* d0 g5 S6 Q
SysFreeString(topicStr);! I' X# ? ~$ |/ f4 I! K& {
SysFreeString(itemStr); ) d7 J# Q0 G' S4 ^; B$ J请问该程序是获得extend里面的哪个值? - @$ ?& y9 V1 C0 V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????