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:2 e& o3 t# O+ W/ H. n2 @
Name = (WCHAR *) L"Poke"; - k3 q" S2 i _( D! i : o1 S/ }2 l- H% \
hr = m_pDisp->GetIDsOfNames ( , K0 d, j) n0 ^& V2 V* ? IID_NULL, // reserved( |8 i9 v- u" z
&Name, // Array of names to get IDs for ; D! Q- l2 q# I 1, // # of names in the array! K* c: _8 g# F) c; U0 G% M; N; l4 x2 N
LOCALE_SYSTEM_DEFAULT, // System locale/ a8 s5 @2 y) U& T4 E
&pokeID); // Array of IDs to fill on output! {& c) G/ y: t* U; C
& F$ g8 v; y4 D if (hr) 2 H) {* ?1 n- `0 n { + D/ L% K6 I# I5 h MessageBox ("Get Poke Unsuccessful");$ T {/ ~* S4 P: R1 l% T! i; B
return; ; ]. C9 e5 j. b) F% Y }0 v" f9 n5 L$ S! G" y- O
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/**************************传递数据给extend**************************************/ $ w. k) z* E7 t2 a# X6 x pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 [% {: @( a0 w* _) M
% ]3 A6 T+ u# V0 i' q valueStr = SysAllocString((WCHAR *) L"1232"); 1 x( s6 C/ T: S! m& m VariantInit(&pokeVariant[0]); & K# i+ G+ ^/ h$ N n2 Q/ g+ T
pokeVariant[0].vt = VT_BSTR; . |6 }+ b6 l3 D% t. x S% z pokeVariant[0].bstrVal = valueStr; ! S% a/ _6 h3 l8 ?; C) p' ]/ ?! `: j+ C1 }; }# i0 N( O( Y6 a0 f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 L0 e' e% e6 H: ]% }7 o VariantInit(&pokeVariant[1]); # m9 ^ a8 o: A) f
pokeVariant[1].vt = VT_BSTR; 0 N) Z3 a2 G2 q1 n6 M: ? pokeVariant[1].bstrVal = itemStr;" n; L' X' T1 I8 M$ p
+ y/ K+ u# O! l4 h5 U$ k U topicStr = SysAllocString((WCHAR *) L"system"); # U4 ]1 x! j4 w5 j6 A4 g7 F VariantInit(&pokeVariant[2]); 7 W- W& J' l" ]8 G( X) E4 E
pokeVariant[2].vt = VT_BSTR;9 S9 }7 w8 K1 Q# M8 U2 O" S
pokeVariant[2].bstrVal = topicStr;+ N q+ }' I5 F. x8 |! P
5 v+ n1 R2 y$ u9 n// Set the DISPPARAMS structure that holds the variant.9 W+ F c9 l& G" K# l7 w! x" |
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dp.rgvarg = pokeVariant; $ j& m# G+ ]# k! V! g dp.cArgs = 3;8 s# L4 e' H, r* \3 e
dp.rgdispidNamedArgs = NULL; # H& c" z) S: H& n# f! q, b1 R, g( q dp.cNamedArgs = 0;) q; p* I$ C4 L3 X
; o4 m# R6 L* d// Call IDispatch::Invoke() " I7 m' Z. u8 y: J- f% c9 X6 T O! }% a7 o( B% G# [ hr = m_pDisp->Invoke(- W% d% L I) \- z
pokeID, 7 h3 U! G1 c9 ?" E IID_NULL,/ b# C9 h0 Y2 a2 [5 D1 {
LOCALE_SYSTEM_DEFAULT, ' ]4 g; o% {0 G" U DISPATCH_METHOD,8 k$ p$ a6 a" Q8 O: I
&dp,1 K( V. D1 O3 \, o3 P1 [" h
NULL,' u; i* V/ D3 Z4 W
&ei,* H9 ]* B p) D' B# g5 [! Y
&uiErr); 5 S! V D* D. ^+ v6 v6 g5 n; Q % U. m2 ?, \7 q" ?3 M' | SysFreeString(topicStr); # F6 c/ V6 Z( J SysFreeString(itemStr); 3 V7 c3 {" F. Q4 E" U1 v SysFreeString(valueStr);- y3 D. ] _6 V% ?; y+ N7 A: k
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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??? 1 N1 K3 o# u0 N' c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???? s6 }" \' l* j2 S+ _" u
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) n: s* G( L' x6 m) U7 p2.这是request的程序. A# ~8 Y( Z0 F& q8 P5 W! ?% {
// Request a value from Extend 0 q/ [( |/ q0 i8 {, t g* ~# n//3 `7 z. ^( _: O3 o U5 [
// Initialize the variant that will hold the BSTR. Set the variant's ! R" |9 m" }/ Y2 D+ ~# k1 T// type flag to indicate the fact that this variant holds a BSTR. Place the* n7 J; r% v6 Y9 N7 }8 {* m1 ~! h& {8 i
// BSTR into the variant structure.9 n7 Z8 V* q0 Z- w- P
# z; b7 a& m9 G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; o4 J6 L; M7 G* L! U 1 J3 b' b# | B/ P' ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) V1 X) X& F8 S9 R4 S& y
VariantInit(&requestVariant[0]); % W' l: B, }( Z6 q5 a. ~3 O) o requestVariant[0].vt = VT_BSTR; ! P* R( l4 Q) d6 l: z requestVariant[0].bstrVal = itemStr;2 l% m( l9 ?' R9 V7 q% A9 m3 _; Q
0 K/ G, w8 Q" g; [ topicStr = SysAllocString((WCHAR *) L"system");6 s+ \" ^9 a4 N* a \ ?: `
VariantInit(&requestVariant[1]); ) z' P! d* \5 B- k
requestVariant[1].vt = VT_BSTR;, A" M- T+ ^8 ^# t1 e% ~' j0 ~
requestVariant[1].bstrVal = topicStr;+ w- i$ W9 R* f2 x9 O9 ~8 `& \7 E- E
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// Set the DISPPARAMS structure that holds the variant.3 I5 W; X: ]1 g( a
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dp2.rgvarg = requestVariant; 2 l- {4 T1 u' h$ c" _/ h dp2.cArgs = 2; # v4 f% c. M+ L# I, Q: z dp2.rgdispidNamedArgs = NULL; / h: ^6 [2 w' d- T9 p1 E dp2.cNamedArgs = 0; 0 \3 @# F# O- s1 c' v + [- t4 ^- H% T7 x var.vt = VT_EMPTY;& K6 q8 i# r. g& @6 e
& x0 W) K8 n" M {7 |& q
// Call IDispatch::Invoke() " d1 h3 O9 {* ?1 s' v3 P' w $ E6 W; O6 Q8 l8 k1 b4 y hr = m_pDisp->Invoke($ T) e5 f, E t
requestID,' [4 q. l+ Q( e& v
IID_NULL,& C7 K" n3 w$ C; J5 M- W" [
LOCALE_SYSTEM_DEFAULT, R w. r1 o; o" y2 r7 A" k$ J
DISPATCH_METHOD, 1 F1 r" |( ?9 g* j &dp2, u% e$ J0 f% [- m
&var,1 @2 J( o7 f1 {
&ei,5 t$ d1 }8 s& a% O6 l; B
&uiErr);5 u1 g9 s2 b% |# ]" F- R6 z7 V
7 T* o( T' x% p( n3 _% O8 n/ `
SysFreeString(topicStr); ' {& E2 z) J) m& B SysFreeString(itemStr); ; a- W7 r( V" H# E" u$ h/ p8 M请问该程序是获得extend里面的哪个值? o7 S/ x0 P6 c; x5 u( Z4 Q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????