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: 3 e( J/ B$ k8 a3 _4 S; yName = (WCHAR *) L"Poke"; ) f, G, N8 Y, e# e1 Y ) i9 a& v7 z; ]. n: x* I
hr = m_pDisp->GetIDsOfNames ( M7 x7 [" ~+ S5 L, c( x9 j( T
IID_NULL, // reserved. X1 \8 \4 E/ K2 i# ~; x/ u
&Name, // Array of names to get IDs for 3 T a' b$ G3 D 1, // # of names in the array 4 B6 t# G# ^0 T8 H- m LOCALE_SYSTEM_DEFAULT, // System locale1 B! B4 X+ q. r: j3 U+ f4 T
&pokeID); // Array of IDs to fill on output 3 N0 V+ O0 X0 t" k 9 w S/ i, p5 d# n# H: Y. s
if (hr)9 S9 @# w0 p: B; X# m W) k
{ $ z& x0 i% q1 r1 Z7 Y! u+ ?; m( [ MessageBox ("Get Poke Unsuccessful"); # d3 O& W; W% l. Y5 Z% Z& }0 A# f return; J4 i' c/ J" L& r% r } : z1 c1 L2 x) Y# X0 K9 j7 r- B% `" ]2 T2 x$ p- S+ M- W2 X* |
/**************************传递数据给extend**************************************/ + q+ K. G1 o( }6 R- S& L% l( f" E7 u pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( D! j- ]5 w/ \6 h" v; l2 Q5 Z % [2 K" p J4 Z, X: ^) W: ?; v
valueStr = SysAllocString((WCHAR *) L"1232");; X, X: B$ h, |$ d, {
VariantInit(&pokeVariant[0]); H! }( R6 U5 j2 |; e3 S8 H0 |7 a
pokeVariant[0].vt = VT_BSTR; 8 O: b2 l S! x' _ pokeVariant[0].bstrVal = valueStr; & b: a/ T( |- s# z ; N; Q" T! v% J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % D- H- r! D% }. _( p5 p8 O0 T4 M VariantInit(&pokeVariant[1]); + G* U: ]5 C' p! j3 b( k6 G pokeVariant[1].vt = VT_BSTR; 4 g/ Z2 u& ]% L3 i pokeVariant[1].bstrVal = itemStr; 8 A; ^8 A8 U2 c9 ^/ m / R: D! B% ]% g J, x0 j/ A' Y topicStr = SysAllocString((WCHAR *) L"system"); * H$ p+ `/ i" G1 z7 f VariantInit(&pokeVariant[2]); 5 T3 G* ]) }7 F pokeVariant[2].vt = VT_BSTR; / H* e- i4 v7 x M: q5 F1 d pokeVariant[2].bstrVal = topicStr;' `5 {: `3 d1 z7 I
' Q4 V! \' m3 Q/ ]+ E! ^' P7 b// Set the DISPPARAMS structure that holds the variant.( a: t- g. }3 Y
/ E) [7 @7 Q: U
dp.rgvarg = pokeVariant; " C. R) A' G3 h/ Y% o6 R$ v dp.cArgs = 3; : Y) N, T" r4 }- a dp.rgdispidNamedArgs = NULL;- c1 L0 {6 F) C
dp.cNamedArgs = 0;8 t0 i4 x# S( X, N* M
[; k0 A8 N- t. @) x" v. \9 L# I// Call IDispatch::Invoke()) L k$ P1 E/ D* G) I+ ?. H
$ e( X+ w: p: c hr = m_pDisp->Invoke(" j% D p+ C' L9 K
pokeID, - @) X3 ]/ W5 U$ X1 [. n IID_NULL, % u+ \8 Z3 }. _) P LOCALE_SYSTEM_DEFAULT,, F1 X8 \9 g/ q/ `
DISPATCH_METHOD, $ h# I. ]+ F, t% x i) g# L( N &dp,( m" H: _ g9 ]0 O% j2 `
NULL,' n- `; J+ y! {! R5 I+ w/ _
&ei, % v6 L7 e1 a) d" p &uiErr); ! v0 ^0 m- o* S 8 t, B& c0 U* Q: } SysFreeString(topicStr);. f- C. }% }5 I7 v9 m% D* S
SysFreeString(itemStr); * |- Y3 z |. o" R7 W- t SysFreeString(valueStr); % `8 V ^5 B. |3 W6 T7 }$ ]0 [. e6 C$ D5 \; A8 q
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??? % c4 z1 w4 c$ T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????9 g# n& V& p; S# Q+ F8 ^
* x- c; w8 W/ m# ~" R" P6 q ) c) w( U* g' {3 x& `* \( L2.这是request的程序 5 N: q" Q! [& E// Request a value from Extend0 K6 ~- b0 j. u- t# c5 ^- b
//" J8 X0 ]8 k: c. y% s
// Initialize the variant that will hold the BSTR. Set the variant's . S F& h: _6 f- l1 t. e) t// type flag to indicate the fact that this variant holds a BSTR. Place the. R% X e L" I T. e& O( M- ^
// BSTR into the variant structure.$ k4 {) M0 a: s' B* l6 a1 a7 |3 A
6 Y6 s! L/ D( I8 F
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ^9 e. \/ B' c ) U# P/ P: B# ~5 w ]. @
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& A1 O6 c) U( `5 n- U0 q3 J) K+ E
VariantInit(&requestVariant[0]); ; y7 e1 O& P( j; G |9 D requestVariant[0].vt = VT_BSTR;% c% [6 j" t0 e9 _, y1 }1 g
requestVariant[0].bstrVal = itemStr;' t. U# V) K! z: |! a
% C& E7 g0 w7 X topicStr = SysAllocString((WCHAR *) L"system");6 C! @5 m8 S) Y8 D
VariantInit(&requestVariant[1]); 3 ^: L2 b" x3 ~. G \+ x! B
requestVariant[1].vt = VT_BSTR; . E( ~9 U' O( e; L requestVariant[1].bstrVal = topicStr;) ?3 g0 Z" _* b- V& X
8 P$ c0 I5 B1 r
// Set the DISPPARAMS structure that holds the variant.- s( i9 {/ H# {! A" _ y3 Y$ {
# A4 R! q. g; Y+ Z6 |7 ] dp2.rgvarg = requestVariant;. ?3 |7 W& f$ ~% V5 y# l
dp2.cArgs = 2;' d" N, K! `: P L
dp2.rgdispidNamedArgs = NULL;1 t% O( V" N& {! R
dp2.cNamedArgs = 0;7 X6 j! n: M ]; C2 W
/ z$ g- S; P# x2 b$ V7 r) x' [# W$ g
var.vt = VT_EMPTY;7 r) ^ M7 o: h1 M& x
! s* s! c" l5 l% Z7 [: @// Call IDispatch::Invoke()( c' ]0 i$ J {7 g
S) W( O: a9 o hr = m_pDisp->Invoke(+ r! E. U; y" s) R0 i+ W! s; w
requestID,; W! {8 C$ k6 _8 M; d4 L1 L; H; p& v
IID_NULL, 8 S' y3 Y* z# O: J LOCALE_SYSTEM_DEFAULT,. M' q: n+ s/ [: b+ u \9 {& F
DISPATCH_METHOD, 0 e4 p2 @$ F6 F, u5 ~, c+ u &dp2, ( ^/ o5 I' n( A( a- s b9 B: z: F &var,, X# C4 ?9 G- |; }% y7 g/ n- \
&ei, 4 k3 U2 D8 Q* F/ @& a &uiErr); : g% c7 U, J) f* k: Q; m. n: B9 F5 d- V* m5 U( _& n
SysFreeString(topicStr); 3 M g: ^( Q, E& l. j& y8 j SysFreeString(itemStr); " Y3 G% A. w' o6 A g5 Y请问该程序是获得extend里面的哪个值? 5 K2 S% T% V7 S8 O! E; 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????