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: ; X$ g1 U Q9 W" WName = (WCHAR *) L"Poke";- I( X r# W! |5 Q. n2 H! p) L
# B' z2 d! t! c5 D$ u
hr = m_pDisp->GetIDsOfNames (+ H l7 o- |- X5 F1 Q* F2 W
IID_NULL, // reserved 2 i+ l8 t2 U5 v9 q% l+ U& z &Name, // Array of names to get IDs for5 @5 Y1 h$ ^8 e& t f
1, // # of names in the array4 Z( ?0 ^/ u3 f
LOCALE_SYSTEM_DEFAULT, // System locale * r. ?$ _: ^ p &pokeID); // Array of IDs to fill on output9 \2 p& i) ~' F5 ^
! a2 O4 j; W( t) g; c! e' K$ F
if (hr)5 C7 K; J" ]+ A
{7 ^& @9 @% U( w* a3 ?% X3 }% Z
MessageBox ("Get Poke Unsuccessful"); 3 @& J* G8 ?) P' X" _) ]: p return;5 p+ b/ l7 Q6 P& N* o7 t3 w- W
}% F2 @9 d! S. [+ L. O& k% V
; }" C$ Q! N* x4 N/ U/**************************传递数据给extend**************************************/ 5 \ E3 E7 |' n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 \. L( m2 f" P( O
9 @: j- @5 v0 v: ~& [3 V+ ]
valueStr = SysAllocString((WCHAR *) L"1232"); 6 I" q2 _0 g' e- y; i9 K VariantInit(&pokeVariant[0]); 4 |2 K" z+ d) q4 G/ i7 G! P pokeVariant[0].vt = VT_BSTR; - @0 [% s, @; v7 |8 G9 V pokeVariant[0].bstrVal = valueStr;2 B8 K. a5 O1 u# L
; z7 {6 y/ m9 B5 x0 f8 ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& n$ A* L' ?4 ~" O
VariantInit(&pokeVariant[1]); ' ^& q, I1 H% Z! z; I W# P pokeVariant[1].vt = VT_BSTR;3 T( o- o& g' h& o
pokeVariant[1].bstrVal = itemStr; 3 X( B2 W' e' K& k / W' t' Q2 Q* V. R) l topicStr = SysAllocString((WCHAR *) L"system");* g- N6 }. |& K% n
VariantInit(&pokeVariant[2]); 2 D% I" }: [- T1 U/ B# Z pokeVariant[2].vt = VT_BSTR;5 e$ U! ]* [' m1 \6 {
pokeVariant[2].bstrVal = topicStr;2 Y1 D' |5 Y/ W
' k& b, v) l2 [6 e
// Set the DISPPARAMS structure that holds the variant./ Z" N, C4 l7 ]
9 b/ @0 v: B/ {1 D* x- W6 S* O dp.rgvarg = pokeVariant; 2 E4 ?" e9 j, d( O# b, C dp.cArgs = 3;! y5 E4 `& v1 T: G4 x& H R
dp.rgdispidNamedArgs = NULL;5 B: q( S/ ]; Q' W
dp.cNamedArgs = 0; 8 ~/ U) d6 m+ Q5 O3 M7 d 6 r( ]: }5 `- D// Call IDispatch::Invoke()1 e8 X; J3 ^2 ?- Q
" ]2 y2 L9 K2 ^
hr = m_pDisp->Invoke(% L/ `: J6 ^8 q* X1 ]+ n' q% y
pokeID,5 c# V2 K; n) Q9 Z% K( K6 V' [
IID_NULL,$ k+ m+ \" v f4 V, K
LOCALE_SYSTEM_DEFAULT, + |6 @7 g1 s, }* k! f DISPATCH_METHOD, # }$ [& ?% A, }$ i1 z& A &dp,' R! A: Q2 L$ U. E
NULL,9 w% C6 S: ?. f
&ei,, |3 ]9 i9 C- V, W, B( U4 l; ?
&uiErr);0 Z! X( T/ K+ p: g$ _' f- X" U
7 d' I* j+ _- |# I* F" H
SysFreeString(topicStr);+ ?7 n( }% Y' q8 C% u- f; s0 a
SysFreeString(itemStr); ' H1 `* _( z, S) w SysFreeString(valueStr); ( L- Q- Q( w. O2 b* U; j r/ h1 n0 ]% E/ O
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??? , M" K5 ^, S8 Q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????5 s( u" z0 N/ Y' |0 L
2 B& @8 P: ?; ] B) | ! e. C. o6 w5 h2.这是request的程序1 x8 b+ A7 ^6 t8 ^3 D
// Request a value from Extend 5 o& ~1 U5 y5 F/ n/ X. q//1 T" l! V4 W$ E) ~% v2 D8 G
// Initialize the variant that will hold the BSTR. Set the variant's ! Q. t/ Z: S7 A" S7 y9 t+ }3 J+ H// type flag to indicate the fact that this variant holds a BSTR. Place the 2 F. j" n! _" M" r// BSTR into the variant structure. 5 [) E- K4 u- o7 W# s! ]& F; Z! E3 D3 h4 l: p
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); / I4 x* Q9 l8 i' s7 A. | ! T' L8 Q- e: ~$ y6 F% o( _7 V j
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 O. R, i( p$ ]1 \6 g VariantInit(&requestVariant[0]); 5 u% _* H9 Y5 \' E$ ^ requestVariant[0].vt = VT_BSTR;# e1 m, b3 D7 B" D* C
requestVariant[0].bstrVal = itemStr;! X K9 d- ~$ f
( Y6 h2 ^7 K+ M) C' i$ D' v/ F
topicStr = SysAllocString((WCHAR *) L"system"); + Q0 `5 i* E4 P; M) F: q! j5 o VariantInit(&requestVariant[1]); 2 [/ q' u# P- t' n2 @ e& ]) F2 D requestVariant[1].vt = VT_BSTR;& s* Y9 h( ?3 @3 s7 Z9 \# P7 V
requestVariant[1].bstrVal = topicStr; / l7 K2 y: D3 H/ X2 z8 Y* E$ m% A4 z
// Set the DISPPARAMS structure that holds the variant. X0 l8 S Z/ r" L& o1 j) P/ M! h5 v& L1 I; v0 o
dp2.rgvarg = requestVariant;5 ]# K0 B9 c) F& f" N* e
dp2.cArgs = 2; 4 Q) n1 ]# Y1 y1 H0 | dp2.rgdispidNamedArgs = NULL;/ k! J: t& ?4 Z1 ^7 B) `
dp2.cNamedArgs = 0;' X. q! ^1 y6 J7 Z8 m6 Y. z
# S) k5 ]( v8 f6 H% I: S h. R var.vt = VT_EMPTY;1 ^0 p9 i9 A. ?' r0 M! C3 D
# I5 B5 @2 ~- ]: ?" c4 j
// Call IDispatch::Invoke() . i8 {8 O. m% t$ e) I; K* s& m& W4 Z# P: n8 k, ~" D! d# i" c
hr = m_pDisp->Invoke(8 n# |! U' `, z
requestID, ) C \7 Y. F/ I5 z" v) Q$ V: R IID_NULL, 1 U3 b6 |) Z6 y, C; l LOCALE_SYSTEM_DEFAULT,' r$ G3 d3 D1 }: V* t- i2 v' H/ ^
DISPATCH_METHOD,; D/ A) ` j3 A* A9 {1 p" G8 F
&dp2, . x3 l. e! f" O K4 ]% z1 G* P7 ] &var,! B/ ?4 S. Q9 X s* e" X! E9 ?
&ei,; e7 _3 V: T% o( H
&uiErr);; S; g; |" p/ l& W7 n6 r
3 V+ p6 T7 w5 b4 @
SysFreeString(topicStr);* U- V: g; m: Y1 O
SysFreeString(itemStr);6 f7 h. E0 Z5 A% Y
请问该程序是获得extend里面的哪个值? ; q0 ~2 u' G- c1 r9 a) F3 g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????