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:4 P8 \0 T% U0 B+ G; q2 j
Name = (WCHAR *) L"Poke"; - I5 z- B: a& @* s( N$ k 4 H$ }* C; v! ]: N. B
hr = m_pDisp->GetIDsOfNames ( & o7 b1 a$ Y( o# f5 i IID_NULL, // reserved * ]4 e: O+ s3 S% q2 q: u7 n9 _ &Name, // Array of names to get IDs for 5 ~. @1 v% ^6 Q6 q 1, // # of names in the array: {/ ^" c# O( L8 R# k( q) A
LOCALE_SYSTEM_DEFAULT, // System locale ' y+ O! @/ S" O0 v2 _" w4 G) u &pokeID); // Array of IDs to fill on output1 I) X6 o& U. N
' D# j# s; n4 q# i* J' l( ?2 J: P0 i1 v/ y if (hr) & J* l2 y. M$ D* i' u+ s4 D8 q; h5 m { 9 m, E! E; k3 c e/ }' ^/ l/ g MessageBox ("Get Poke Unsuccessful"); z1 ^& n: K+ E return;: ?0 k' _. K Y
}. }8 Y- `& n, z3 S
2 a4 o! i' p( i6 w2 W/**************************传递数据给extend**************************************/# k+ v( j8 i4 ^. L3 p& t4 W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: e9 L) q+ G9 g3 R/ F
2 D' x- ]1 P- C' C: y+ j) _
valueStr = SysAllocString((WCHAR *) L"1232");" C7 F7 L+ \+ Q s- U9 B* u
VariantInit(&pokeVariant[0]); / h/ D0 Z6 F0 G* \- [ pokeVariant[0].vt = VT_BSTR; ' B: Q/ t- h& V; n. A' n pokeVariant[0].bstrVal = valueStr; 6 ]& \# f" Y- D3 D! H m- d / \1 t& S+ g9 |* @- P* f1 V' e5 e$ Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & @8 U0 ]5 v) x VariantInit(&pokeVariant[1]); r8 ^& S" v& b* n pokeVariant[1].vt = VT_BSTR;$ s5 Z5 i3 }! X+ \" r8 b2 r
pokeVariant[1].bstrVal = itemStr; F' u7 U( q* V7 x
; \% c" k, l' T" x) e
topicStr = SysAllocString((WCHAR *) L"system");' h, Z& i" N! K0 J4 H0 P8 T2 s
VariantInit(&pokeVariant[2]); ' a7 I w- q2 o+ ~6 Q& A pokeVariant[2].vt = VT_BSTR; 3 F8 v5 n9 ^# L3 E: p* t9 m pokeVariant[2].bstrVal = topicStr; 9 L# I. X6 J8 Y, {# Q' |' e" ] . N/ z( S2 u. r2 i7 z// Set the DISPPARAMS structure that holds the variant. ' P1 R; f& L+ z # j) S* Y! H, X, f6 n% u dp.rgvarg = pokeVariant;/ x& d! g9 H R: `- x( C8 X
dp.cArgs = 3;( `2 x2 T6 Y+ ]" K. E; k, M
dp.rgdispidNamedArgs = NULL;$ ~ t" v, [+ V' ], {
dp.cNamedArgs = 0;3 K% C0 ~ z4 g6 j7 A( X+ l
* Q/ _: S- V C# T2 r# M4 ?// Call IDispatch::Invoke() & `* K ~+ m( i) l/ g! `7 R0 r" Y4 D2 o
hr = m_pDisp->Invoke(+ ^$ P) ?2 B& i. ~ Z+ G
pokeID, 7 n# z+ M/ s7 f, j c% n/ j8 W IID_NULL, & Q4 Q& ?: @; H2 k) d0 ^ LOCALE_SYSTEM_DEFAULT, 0 y, E; l+ g0 L7 T1 [ DISPATCH_METHOD,8 p. z' v( J5 G2 t; ^% I. l
&dp, 8 q" h9 K0 e4 p, U8 T0 n1 C" O NULL, k/ x! ~) v. s+ \( c, _" l( F
&ei, " v" A) W/ l/ U b &uiErr); 8 k! ~, L' b5 m) R9 x8 z1 f/ e1 E! V: K: E; V
SysFreeString(topicStr);& z1 }7 L' r6 i7 O
SysFreeString(itemStr);& i% }. Y5 _& k3 w9 _% E* a
SysFreeString(valueStr);; }# T1 I; [; m* b8 o2 K7 l6 o
L+ S8 k/ r8 w0 s! j" H% \
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??? 7 L3 L# F$ s' b/ G" v& g6 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???? ' v; U. }2 m/ f$ Y7 E. i" G. ^0 O1 b6 v9 W g: A
; ?' ]0 x- q4 n! i* e4 q8 k) K2.这是request的程序1 S6 w$ x. f% z; ?3 F2 Y& H v
// Request a value from Extend 6 L' |. ], [* @//% [$ O4 f9 l, v4 D. P$ h1 t
// Initialize the variant that will hold the BSTR. Set the variant's( {0 \9 F- ?# n5 j* f7 g$ j
// type flag to indicate the fact that this variant holds a BSTR. Place the : ]- C! R* G. t6 Y6 w, F$ f7 U// BSTR into the variant structure. $ b; h+ b; W& ~! \! T& h# O0 G. I& b6 o- r w
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, H J/ y3 C0 t: X5 l! M3 s% u7 J
7 n5 P$ w; N$ {( N' I8 N' F4 l6 }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' r; r5 b# j* m& w7 { VariantInit(&requestVariant[0]); * R$ j9 ?7 o8 |& H6 m" b$ w
requestVariant[0].vt = VT_BSTR; & q2 O! i2 h' V8 V requestVariant[0].bstrVal = itemStr;+ d8 y* \( ]8 w8 y) W: g& R
3 _; F6 Q* |0 h" D! j- J7 V
topicStr = SysAllocString((WCHAR *) L"system"); . h+ }# O! m' a4 L8 o2 W VariantInit(&requestVariant[1]); w8 n( G6 c$ k% b( a) c+ B0 Y; O requestVariant[1].vt = VT_BSTR;* W8 L( r; L* {, \1 m
requestVariant[1].bstrVal = topicStr;3 U6 ~- l4 X& U1 V( C9 a) G
7 ~ ^+ B8 |( i( h0 J w: f$ W
// Set the DISPPARAMS structure that holds the variant.4 w0 l& E5 g$ J& J4 @& B) j& f; |
* u, L( a' ^2 N7 Y5 V% e& ? dp2.rgvarg = requestVariant;& N% @$ T) m1 c/ ~( i: a
dp2.cArgs = 2;) q3 l1 Q# O* ~9 b" u0 [+ z9 ?
dp2.rgdispidNamedArgs = NULL;: g$ W+ l4 a" u9 e8 E/ v \
dp2.cNamedArgs = 0;! u/ s& x- A; P F+ N
. h' M* B" Z7 { var.vt = VT_EMPTY;4 J4 O( o( r L, V* I( N
5 E9 t9 K: u" E% `& b: L
// Call IDispatch::Invoke() # U, t4 g" p; P + g. ?1 S8 n. R hr = m_pDisp->Invoke(7 ^* M2 L; f. j D E+ _
requestID, 5 n2 o0 f$ D5 m+ G IID_NULL,/ J! Q' v ~) v9 X
LOCALE_SYSTEM_DEFAULT,) m; w6 \/ k. U: n
DISPATCH_METHOD, - b7 j ~8 [; t& V- u &dp2, $ O* p! D2 W' V3 d; l3 v0 v &var, & x% e8 M. O+ r3 U &ei, 3 [5 e' J1 G9 G( Y }& Z( y &uiErr); : P0 h2 h: ^( F6 l* p & p* j1 j" v" Y# j SysFreeString(topicStr); ) z0 e: u3 o& o7 r SysFreeString(itemStr);( X# y8 ]3 L6 D/ ]
请问该程序是获得extend里面的哪个值? 8 y5 G' P5 Y8 f$ I$ p% ^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????