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: * `; m- m' ?, c& g* R! nName = (WCHAR *) L"Poke"; ' C$ {- v$ A& i* p& Z/ s 1 h' N6 _1 A% z* `3 H8 h- p2 ^
hr = m_pDisp->GetIDsOfNames () g9 ] A4 u7 A' q* I# @- @# S
IID_NULL, // reserved; ^$ r2 x7 v4 F. g" [
&Name, // Array of names to get IDs for' ?' r0 \; H# N/ {
1, // # of names in the array 8 b( i: @' \+ n/ o! l! j LOCALE_SYSTEM_DEFAULT, // System locale* V, O2 v. W1 C! E2 a
&pokeID); // Array of IDs to fill on output1 u9 ~$ h: N5 H6 i
6 `4 f1 [! r6 P# K% a if (hr)" \% K/ s* \1 s6 x$ b) ^& T
{ / m& q; [2 N# H1 `# D MessageBox ("Get Poke Unsuccessful"); 9 ?1 ^! E2 u1 R return;( X( {2 o. Y0 Y7 Z
} # B4 x2 e4 n; `4 O" j( G% M+ E& g" k3 n8 p2 V
/**************************传递数据给extend**************************************/ * R& y# F, p, i pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! o( m/ e, b5 ~/ e( f$ d 1 O* a2 Z& a( H
valueStr = SysAllocString((WCHAR *) L"1232");5 b+ z5 [4 x* a6 T3 Q$ W
VariantInit(&pokeVariant[0]); ! f& m3 ]& J$ p1 y0 B5 k+ B6 ~
pokeVariant[0].vt = VT_BSTR;0 Q6 [ o5 ~3 w& A0 W
pokeVariant[0].bstrVal = valueStr; 0 r4 |& \: [0 ]" x" e7 R* P% T9 c7 u3 l7 @; ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. A2 _" l8 u2 N# `; x1 R2 F4 H
VariantInit(&pokeVariant[1]); ! U3 Q, I t* U" g) c o7 ]
pokeVariant[1].vt = VT_BSTR;& b" X( L0 F. \; G( |
pokeVariant[1].bstrVal = itemStr; : I* o& X7 Z; Z6 K& V/ ^0 |# [9 b9 B
topicStr = SysAllocString((WCHAR *) L"system"); ! m$ S/ i/ A" c6 S- | VariantInit(&pokeVariant[2]); ( J ?4 h+ P) K3 w. g J2 ^, P' k pokeVariant[2].vt = VT_BSTR; # p/ ~8 M* r8 |2 {# V pokeVariant[2].bstrVal = topicStr; : M d" L: Y+ @4 y# S0 h/ p# g/ C7 x6 J+ Q; l5 O: \4 o
// Set the DISPPARAMS structure that holds the variant. 6 m F+ }$ N" Z8 J0 O. k9 R * t z5 w3 q; a2 v dp.rgvarg = pokeVariant;( Y8 W5 q+ x# l) H
dp.cArgs = 3;3 Z: {# r' {7 Q8 s4 ~$ f6 h
dp.rgdispidNamedArgs = NULL;) _2 B4 e, O; A- d. y9 h+ a) A
dp.cNamedArgs = 0; 4 N) e, G4 @- t) T2 M- j, m" W, o- u; Q1 d/ N Q
// Call IDispatch::Invoke() * ] F8 q9 G& f" { 3 Z- T* q- C$ z f! E E1 V- s hr = m_pDisp->Invoke( . v' g4 U8 h7 a& @/ w# X7 [ pokeID, ! b6 U, K. u' ` IID_NULL,! A, W2 y4 |) B8 R. O0 o) p
LOCALE_SYSTEM_DEFAULT,8 h( M/ ~8 U1 y$ {$ C* i J9 Z+ [
DISPATCH_METHOD,# K. @) d* P$ h
&dp,, J7 j6 j/ G6 H/ u' \( V
NULL,2 E( ]/ E4 N! W: S6 F- G# ^
&ei,, x% ]5 d. F) x% O
&uiErr); C2 ~" ~& r& G
! u5 p, G% V ?1 M! H0 e7 _ j SysFreeString(topicStr);6 Q, o& G& \7 n, a& n6 f; D
SysFreeString(itemStr); 7 I( e0 Q9 @2 U0 f$ M SysFreeString(valueStr);5 Y6 K2 T& }* K% |4 L, H
- E' a4 e5 j) P+ f* `( `# r
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???, a$ W0 @) S% s- S
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???? - p4 w3 @1 `0 Q% C4 K$ n: F0 J/ |0 H 0 e; \; p6 u' w" T5 X$ k5 ^2 T" [1 M5 F
2.这是request的程序" V; q. X% I' Z' h( I8 M3 j3 d
// Request a value from Extend3 I; {+ x( y3 Q1 x
//" F2 L! M% S8 v2 O% }* k, d9 E
// Initialize the variant that will hold the BSTR. Set the variant's ; I% H& N3 a. b. Q5 z( U8 F7 V, _// type flag to indicate the fact that this variant holds a BSTR. Place the; `; X3 t% a) A; l7 l0 {
// BSTR into the variant structure.# V8 l+ c# ]# P. k
( U1 O4 |6 a4 I- V! a( s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # {! t- u/ n6 y5 D( x7 m0 j ; }( d, T/ }1 J" a" T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 j0 G5 ?: L; S3 U7 \* P$ m M; ?8 v
VariantInit(&requestVariant[0]); 7 T( ~ [& `1 \; u- t, ?1 G5 a
requestVariant[0].vt = VT_BSTR;0 \( A4 M7 Y% Z" d3 F, A
requestVariant[0].bstrVal = itemStr; * j5 y) W/ M+ A8 D% X4 h! y7 O2 [( u, J6 ]3 y) ]- t4 _% p/ N* Q& Q; R
topicStr = SysAllocString((WCHAR *) L"system"); ( y1 i" {, J/ Z. N VariantInit(&requestVariant[1]); 7 \; b! E- A8 ^# N8 S6 N
requestVariant[1].vt = VT_BSTR; + F D/ U' a( [, u6 } requestVariant[1].bstrVal = topicStr; 4 {( k. P- @ D' y' Q5 H9 }* \( W6 b Q1 ]
// Set the DISPPARAMS structure that holds the variant.; ^' z: e3 f7 ^. z% C. u$ P6 L, b8 r6 h
, R6 E+ [: z8 N
dp2.rgvarg = requestVariant; / k( N6 [& M% T6 q& J0 `/ G dp2.cArgs = 2; 6 l! M8 D7 a7 R l" t+ ~ dp2.rgdispidNamedArgs = NULL;/ Q& E- l H/ \! B, b6 B
dp2.cNamedArgs = 0;% r" {8 W+ p! } W6 D6 ~& e
, B3 p8 U1 Y4 g( G6 ?! v# y
var.vt = VT_EMPTY; ) l: z2 D5 e- C$ P' u6 B7 d* Z2 \ # S: ~ M1 ^7 W' O- k* K/ ?% X( V// Call IDispatch::Invoke(). i0 v3 X8 {% Z! H) y
1 y+ V* L) r* h- C/ O. r
hr = m_pDisp->Invoke( 5 Q5 m8 b% n; b8 W0 g* R requestID, 7 i: ~2 V# x7 B, G w3 A7 {' n# K IID_NULL, 8 d, L# b! W' N- l% F LOCALE_SYSTEM_DEFAULT,2 Z$ Q2 t% P6 ~
DISPATCH_METHOD, % M5 q: `0 P5 j4 v &dp2,5 e" q& x, W/ Z; c, p6 q- v
&var,2 d3 \% C& m- H: {
&ei, ! ~7 A0 R, ?# n7 H5 z4 _8 V4 K &uiErr);4 K! w' }* ]3 `0 J, p
9 F- k) R6 Z- k, G P SysFreeString(topicStr); , j* ?" n S2 S. d: O SysFreeString(itemStr);1 |2 `) k# n/ S
请问该程序是获得extend里面的哪个值? % M' ~1 w' y h& R' ]' @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????