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:! J8 U% ^* R8 \- R* n* ]0 w0 A
Name = (WCHAR *) L"Poke"; ; G7 N5 S4 Y; G, `9 |1 t' V7 W - i( G4 {" g+ p, ` hr = m_pDisp->GetIDsOfNames ( ) {; G3 U' k6 f" P& p# n6 m IID_NULL, // reserved 1 @! _: S* q( |; g' B; g5 a) I5 o &Name, // Array of names to get IDs for 9 F6 b# H* B& L3 R0 Z 1, // # of names in the array : v/ e( w) v; H# n) A1 @0 ^- T LOCALE_SYSTEM_DEFAULT, // System locale ) V& }" C( S2 r# s! g &pokeID); // Array of IDs to fill on output; I9 ?- t! d2 Q
3 q; k; T5 S( k8 _7 ~ if (hr)5 e* W! @ V$ V0 A$ [
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MessageBox ("Get Poke Unsuccessful");: x% S0 k, ~, ?( g( n6 X0 M
return; 2 I8 E0 a* o5 A4 G. i0 s% }5 A! A }; `' f/ o' A5 X4 p5 @
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/**************************传递数据给extend**************************************// e% K; u2 H; { d
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);( B+ I. C P- p) w
% I/ {9 N( E. c6 q8 G valueStr = SysAllocString((WCHAR *) L"1232"); * U# t: [3 [# ~6 I9 |, G VariantInit(&pokeVariant[0]); - r7 q' v6 |; U9 A6 X; f
pokeVariant[0].vt = VT_BSTR;" z9 I6 n6 @# B. Z
pokeVariant[0].bstrVal = valueStr;9 _+ h0 z) M% Q4 c1 R
8 [; K3 P7 ?2 U4 f/ Q6 H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + G# ~+ _- E, y4 {: w0 d1 O VariantInit(&pokeVariant[1]); 6 f, U V5 _2 g* ?: m pokeVariant[1].vt = VT_BSTR;; S2 T5 X4 @9 n n
pokeVariant[1].bstrVal = itemStr;3 S, H8 `# O2 q! a( c# L. \
3 t( `# D$ y& _ B topicStr = SysAllocString((WCHAR *) L"system"); 8 t6 Y, p& Y) C1 T VariantInit(&pokeVariant[2]); " P) Y2 d* g1 b4 [/ r( ? pokeVariant[2].vt = VT_BSTR; & ?( V) k) ~. `) m) n: e pokeVariant[2].bstrVal = topicStr; ( A3 ]; n* g( K& U$ d2 I6 i- c- y% l2 S" c" S: @
// Set the DISPPARAMS structure that holds the variant. " p N6 \/ }+ @" x( A1 _8 w* a; O8 w8 W7 g. T- y& i1 v
dp.rgvarg = pokeVariant;1 w6 v% z0 Y; f0 Y& z) g% t9 B
dp.cArgs = 3;7 v* M1 G. T- u" b% {, k
dp.rgdispidNamedArgs = NULL;' x$ Z4 j c4 T: l
dp.cNamedArgs = 0; " ?' S& R4 r2 i) x 9 B. k! r% V0 x" A// Call IDispatch::Invoke(); X' \! `2 i- x% R
3 \. n5 z+ @9 J4 j7 I hr = m_pDisp->Invoke(/ I* }8 Y/ G! T+ r) F4 U x8 t3 q) P
pokeID,3 X& T \& ?! n8 K
IID_NULL,& A, Z, k) l3 ~6 R: E$ A: x
LOCALE_SYSTEM_DEFAULT, 1 X3 V: g; F9 [6 e: D DISPATCH_METHOD, / _- K+ J9 r$ e; K+ G &dp,$ Z$ W( X1 c8 p/ h! O
NULL, , | e3 h% T# G$ ]# G/ y &ei,% t! R- k* g- f0 A' I
&uiErr);9 m* n2 T' D3 L* P- r) r
2 @& \5 X: M# Z6 g: |, L3 n SysFreeString(topicStr); # F% ^. Z; G) v( G: v, u# A SysFreeString(itemStr);! m. Q# q/ ]9 Z0 {! \2 @
SysFreeString(valueStr); % p4 m" z5 W5 B: b ! ]; ^5 j: ~% n# J. [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??? * d& c/ R% N8 v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???? " @" B! _/ {1 P5 B9 @' Z. t- i7 M/ e1 W( l' _5 q) T
5 r7 h* }. i9 j. e `6 ?. g2.这是request的程序( C. {5 h/ g8 q1 g {8 X0 q
// Request a value from Extend + F& {8 T- g. F( e: C//1 e0 \" ]* A1 J) W" ?" n$ y
// Initialize the variant that will hold the BSTR. Set the variant's 8 \9 d8 S( v3 ^ k, N// type flag to indicate the fact that this variant holds a BSTR. Place the - v; ^* V0 n# r* ~// BSTR into the variant structure.: a. r7 ?, ]$ z( {- b, V8 w
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 U2 a; }/ a7 o% F3 a* U
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ |$ m# g* V( @ V7 C1 G
VariantInit(&requestVariant[0]); U6 K: E D b requestVariant[0].vt = VT_BSTR;" q" N5 Q0 R3 B/ m
requestVariant[0].bstrVal = itemStr;9 d% @* F5 |; u
& `5 ~. e/ k- }. f2 m topicStr = SysAllocString((WCHAR *) L"system");, S9 ^2 l1 p) v4 c4 b* w k
VariantInit(&requestVariant[1]); # ]8 [" H8 Z! q# D5 S, @
requestVariant[1].vt = VT_BSTR;/ {7 A* T9 F- d( f V+ q& a9 `
requestVariant[1].bstrVal = topicStr;/ _6 k0 p1 g2 F! m! ^
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// Set the DISPPARAMS structure that holds the variant.# k u0 |% U+ Z# R/ g$ o" t& w6 ^
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dp2.rgvarg = requestVariant;. ]6 [% a7 b6 o6 E( p' g
dp2.cArgs = 2;; H, @) N! p1 c" C9 s( F
dp2.rgdispidNamedArgs = NULL;" J* C7 v0 u- i8 h
dp2.cNamedArgs = 0; 1 `& t& ^" X# ^6 t. Y- { 8 I# M# r: y4 b7 l( A6 \4 c$ ] var.vt = VT_EMPTY;' [: B/ H1 ~# Q: F! m' B7 m7 H% }
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// Call IDispatch::Invoke()) S- I0 @8 R5 s
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hr = m_pDisp->Invoke( # L2 J l( p& `3 a5 C requestID,. i, u; n z n+ }* U
IID_NULL, 6 U- W" g3 E& z u+ v LOCALE_SYSTEM_DEFAULT,; j' D1 g, I: I6 D/ k4 ~
DISPATCH_METHOD, 4 n7 Q, b# x2 M. X7 E* P &dp2, : K1 ` ]$ w+ M &var,0 Y1 N9 W0 f7 Z% l% c7 \ [
&ei,3 E( U* s# G% J7 E8 J9 b8 E! K/ Y$ E1 N
&uiErr); 6 L* R0 V# S; A5 S0 o2 v/ Z9 t) {0 U) T# ?* E4 ]
SysFreeString(topicStr);6 U- a' {( u0 w* H9 E3 q
SysFreeString(itemStr); ) E& @9 u4 X6 E请问该程序是获得extend里面的哪个值?& d5 W" k( t5 m
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????