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: 1 j2 A3 R, i/ X1 C! y. RName = (WCHAR *) L"Poke"; : e" d1 p. }% m" T5 X/ M( \+ _" X 3 a% v1 l5 B4 |' ^; |0 U hr = m_pDisp->GetIDsOfNames (" ?2 V5 `6 `/ H3 N+ O: f
IID_NULL, // reserved2 C, m) F" |. x2 }3 P' B4 g
&Name, // Array of names to get IDs for4 g* z; r/ l9 o7 E
1, // # of names in the array: G0 }; v9 ?3 _. x, ~9 P# w4 T
LOCALE_SYSTEM_DEFAULT, // System locale % t( |/ }! M6 V3 k+ F& f4 F; q' g &pokeID); // Array of IDs to fill on output0 y& {# k: V& q1 _* a+ W! M4 r
. J# R( ~# E8 U$ l0 L if (hr)2 J) O5 ~% I; b* a5 k l
{ ) ~ w6 M1 y ~6 H) Y5 M# P9 `8 V MessageBox ("Get Poke Unsuccessful"); : z9 A" d5 N) e# Z* t0 O& U X% k% v return;: \ a% t, O) N% J R( q+ Y. H0 N. z) A
}0 L9 l2 w5 v$ f% m% w, R
3 c* k3 `) A! h, }2 h9 x( a2 z
/**************************传递数据给extend**************************************/ 5 t9 ^+ I2 g7 h9 |, C- L" S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 i/ q. _: n3 z$ ^% }0 ~ ' l% \; N6 d2 N2 i& y1 @. u* Q2 |
valueStr = SysAllocString((WCHAR *) L"1232");* k' J0 S A) B( B) r) U
VariantInit(&pokeVariant[0]); 7 z/ R# |7 V# q7 s9 q) [& u5 t
pokeVariant[0].vt = VT_BSTR;- S9 V" |+ h% W" Q2 {. `0 r
pokeVariant[0].bstrVal = valueStr;4 C. r- V8 z' P+ R2 m) p3 Z0 ~
# S' [5 }2 r1 L9 g' `) k, O
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ s- b4 f- X% \+ e
VariantInit(&pokeVariant[1]); ' U- X+ v# \2 I" `% ~( m pokeVariant[1].vt = VT_BSTR;# |5 O3 G- f2 |2 G( u2 @
pokeVariant[1].bstrVal = itemStr;8 D) f N5 j, a0 V8 j* f: C. r% F
! S& b: m/ W0 c! k) ~1 f i topicStr = SysAllocString((WCHAR *) L"system");8 q+ z7 p) ~) g" W# j
VariantInit(&pokeVariant[2]); + }6 h: `' \( l5 B2 d pokeVariant[2].vt = VT_BSTR; 3 m* q y! L9 i: P N; b8 q1 N* o pokeVariant[2].bstrVal = topicStr; 2 T2 q9 o5 n' X" S6 U1 B* a( {) v
// Set the DISPPARAMS structure that holds the variant. ' A; s: l) f$ W* ^) C% D- M' g ! o% V7 C4 u( @- _+ i. c dp.rgvarg = pokeVariant; $ j+ ] p! I1 D' Z9 X# z dp.cArgs = 3;6 c2 c7 x5 [4 q
dp.rgdispidNamedArgs = NULL;. K1 m8 T5 W) r# H; g5 y$ a
dp.cNamedArgs = 0;( t/ x0 `# p% w0 R' J* y
% b) c. U t6 @6 Y3 R/ ~// Call IDispatch::Invoke()7 y) P1 D, y+ ^3 W- v( ~' Z
8 ]: G5 c" R/ ?, A# v
hr = m_pDisp->Invoke(7 n& D+ \1 k) ?( P% S6 c6 S3 F
pokeID, % P2 O8 g' w: y' Y IID_NULL, + \7 v t$ b: w% a LOCALE_SYSTEM_DEFAULT,9 u3 x# E- \. f. c! z0 M
DISPATCH_METHOD,3 ]1 [/ B# |5 _5 X( d0 |
&dp, 9 Q/ s7 G' E- l- F4 E5 @" p. W% H NULL," X4 Z; I' \% d8 D
&ei, 6 G9 ?" e2 B- t6 L &uiErr); 4 h5 j5 P9 w& M% I3 t! z* D/ j, X1 F+ v% A7 H, t4 |/ j' w" D7 ~1 L
SysFreeString(topicStr); - L; l% A$ j. `0 u" ?5 Z' f( u SysFreeString(itemStr);8 `# E* p, P- A2 J( ]
SysFreeString(valueStr); # L( A) V: ?6 [8 u+ ~" y! h& B0 d + d o1 W& k5 Z5 e2 A) \7 _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??? 4 I9 A2 P2 n' e- e8 r$ t* R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???? }2 C4 U+ s6 X6 d) ^# `7 b" E8 l
2 k& y& O( K% e9 e. f s' ?& }" j+ a
9 y& ?3 g9 W" R6 s7 ?% ~2.这是request的程序! @) |4 y8 L+ V/ L
// Request a value from Extend f( `; f4 p0 K// / y, @" B% r- P) H0 s2 n1 h6 [// Initialize the variant that will hold the BSTR. Set the variant's0 V& W; h4 j7 H0 t
// type flag to indicate the fact that this variant holds a BSTR. Place the- f* i7 D7 ]8 I4 u+ v- f" z3 M
// BSTR into the variant structure. ) ^" h* l+ T% t! k5 j r }% H ]! t* O requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 2 o/ m: U) c! a# W . O" _) c! V& b8 r6 g; F* o( Q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); `1 X( J- V- P8 y5 o. S# @6 B0 e) q7 w% L
VariantInit(&requestVariant[0]); 4 O D2 s3 \9 [ requestVariant[0].vt = VT_BSTR; T H& p. Y+ z6 b2 @
requestVariant[0].bstrVal = itemStr;/ ?5 z$ i$ y! M& D
4 U/ \; D0 [7 Q7 O" z1 g topicStr = SysAllocString((WCHAR *) L"system"); & x ?# w4 z( S- A: i+ U VariantInit(&requestVariant[1]); 7 {- ~2 R7 T5 V# Y6 U+ s
requestVariant[1].vt = VT_BSTR; . F) F% x1 q e6 [) r2 q' q* ^: ^ requestVariant[1].bstrVal = topicStr; ! d! I3 z# E# ~( j9 f4 t+ L3 Y, G* h9 O: S: \* r+ J& g7 D- Z& V' G
// Set the DISPPARAMS structure that holds the variant. 9 t, b2 b g3 {0 [" j& |0 G: a% [. J+ v# S/ e0 `4 u
dp2.rgvarg = requestVariant;! p$ e; [ D5 S
dp2.cArgs = 2; 2 P4 `4 l# E& c dp2.rgdispidNamedArgs = NULL;; b, N/ j9 c* t2 r' G8 ?( n O) v
dp2.cNamedArgs = 0; % J) Z5 T2 v9 n+ B) p }2 X& u( y* x7 e
var.vt = VT_EMPTY;/ v2 \0 Y/ W3 \* s+ t$ U) J