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 p) v6 |6 _2 C% M6 a+ |
Name = (WCHAR *) L"Poke"; 9 M9 m7 h' S- m- ]( ~$ P0 R8 f- o7 s + q7 y, \; i7 y4 k, i' p% e
hr = m_pDisp->GetIDsOfNames (. o+ w( _" S6 K
IID_NULL, // reserved 1 G, y' ^& z$ Z$ \7 u+ s- A. @ &Name, // Array of names to get IDs for $ \. d# r( S3 c9 f n- g 1, // # of names in the array ) ^/ P B( ]- _: @9 z LOCALE_SYSTEM_DEFAULT, // System locale # i7 p$ G4 c* f2 j+ ? &pokeID); // Array of IDs to fill on output 3 g. z1 {3 T7 ?* x1 T8 C' S , x2 w( E& c" j( o+ m1 F if (hr)$ D) _8 m. O7 Z
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MessageBox ("Get Poke Unsuccessful");0 z7 S& a5 `5 P8 {$ [
return;! a1 b& Z9 ]+ |. q+ A* Y% a
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/**************************传递数据给extend**************************************/ ) s' D( D0 `* X( b' i+ o( M% q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ M& h: P) w/ g, G: t * |' J- s* m- K+ v/ E1 |
valueStr = SysAllocString((WCHAR *) L"1232");+ _& F( Q" V' e* k$ r* d! f
VariantInit(&pokeVariant[0]); ! j% A, }3 C0 S
pokeVariant[0].vt = VT_BSTR; a. \+ n" w' M8 L# k& p
pokeVariant[0].bstrVal = valueStr;7 N3 W4 J$ `. B& Q
R" X8 ]# @9 E" ~) T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( q, e. h# T7 w. P! x; x
VariantInit(&pokeVariant[1]); " e* X) @! X" h) j3 ^/ [ pokeVariant[1].vt = VT_BSTR;& ~* X1 n9 G) y
pokeVariant[1].bstrVal = itemStr;1 \+ M& Q5 U' A! [ {# W$ L- c
I: B. I( q# ~5 ^* o topicStr = SysAllocString((WCHAR *) L"system"); : w% z! X- ^7 w( m8 D2 w VariantInit(&pokeVariant[2]); 6 h. e8 A' J$ ^& y5 ]+ m
pokeVariant[2].vt = VT_BSTR;4 G5 B+ c8 q2 @% W s
pokeVariant[2].bstrVal = topicStr;- U) N) ]% e# _; l2 d
. P6 R9 ]/ P, \9 H' `8 k// Set the DISPPARAMS structure that holds the variant. 7 @; ~# E4 y* k, J( \ 3 `( U1 }! P0 V, A( X dp.rgvarg = pokeVariant;+ E3 ?3 R9 ]$ H- X% r
dp.cArgs = 3; - U# Z1 Q2 S5 J5 `# U dp.rgdispidNamedArgs = NULL; 4 U! W8 r. k' D/ @! ?0 g5 R" B dp.cNamedArgs = 0;8 h; G: W$ o0 i b6 `
/ x' S+ n7 i. Y* V; F// Call IDispatch::Invoke()" G5 R0 P2 E/ }2 \8 R" c
) U! ]! h8 R8 j) r4 `5 S hr = m_pDisp->Invoke( $ U" |2 {0 O' j2 F2 m* k& n; b pokeID,% U: p* x& I4 m$ p5 A
IID_NULL, 4 p" J3 ?0 U( B: S4 \ LOCALE_SYSTEM_DEFAULT,) T- n) `& ?$ k& o& z
DISPATCH_METHOD,$ {* Z T' Z9 y, G
&dp,/ c; ^* e* `6 U$ s/ H+ ?
NULL,* U F3 n" D+ I ^6 k
&ei, 2 e @7 P, a5 m) I( s2 I8 P% o7 ] &uiErr);& _3 p5 c8 v+ q4 I2 c- W
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SysFreeString(topicStr);. g5 \0 D& F" `8 N
SysFreeString(itemStr);7 u8 J* T2 A" p ~, k
SysFreeString(valueStr); ' m1 W( ~4 {8 t" G$ ] 1 _0 Z3 e7 Z8 X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??? ) C3 p0 Y/ U2 R4 Y# i& T" E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????3 W3 S$ T; r. k
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2.这是request的程序 - |( B' C+ Y+ F& }// Request a value from Extend$ Q9 B* S7 { T0 H! m
// 9 h4 P c$ d! N+ K// Initialize the variant that will hold the BSTR. Set the variant's5 B" t' j" w' E; i3 K( U0 X- K
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 g1 x( A! f! ?: f, F// BSTR into the variant structure.) ^+ \# P' U7 ~, m* G) p i3 U% e
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- H% a( X' U. i- I( M
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 b; a. A. o) U5 q6 j* l VariantInit(&requestVariant[0]); : S- [0 P" Y; T+ Q. _
requestVariant[0].vt = VT_BSTR; * y( y2 }8 F, I* p requestVariant[0].bstrVal = itemStr; & b) ^6 R% U3 w, u2 Q& Y - X& l6 l; K4 B4 w topicStr = SysAllocString((WCHAR *) L"system"); 7 x8 } g- }6 {8 I# t! B" i VariantInit(&requestVariant[1]); 6 z9 b/ s$ T( ]; ?, h# n4 F/ n
requestVariant[1].vt = VT_BSTR;1 s$ N b- a2 J' K
requestVariant[1].bstrVal = topicStr;1 C. r$ n# n: H
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// Set the DISPPARAMS structure that holds the variant.; A* {. u# O, Y W9 L2 l: k
6 V8 H# t/ E, I, ^ dp2.rgvarg = requestVariant;: g' ]8 V* K5 c
dp2.cArgs = 2; & x# ]" E! i8 f6 W5 o2 f dp2.rgdispidNamedArgs = NULL;- R6 Y9 k- N: g. @
dp2.cNamedArgs = 0; 3 A1 E, u. o1 e - l6 ~' {: _/ W( H, a0 q, ~% W var.vt = VT_EMPTY;0 ^ [+ r) F r2 q4 P& F2 U
# R( {0 M3 [' j/ X// Call IDispatch::Invoke(). _4 O8 Y. o8 Z. T0 |
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hr = m_pDisp->Invoke(& z3 M8 m+ E- l. R" _- W
requestID, , I" B6 r' k9 R: p+ `" p IID_NULL, . S, K+ m$ V6 p LOCALE_SYSTEM_DEFAULT,- f$ d r C/ |% z9 g0 g
DISPATCH_METHOD, ; e2 D- E5 u: {- c l &dp2,7 f. ~+ w% ^6 W3 e2 c+ W) l
&var, ! }$ g# N9 B6 b! }9 r8 n0 D4 v &ei,- G4 y# _% `" C' c
&uiErr); . \, O- L, i5 ] 2 B$ m. t k5 Z! k SysFreeString(topicStr); 6 [3 y. v% {9 E$ g4 W SysFreeString(itemStr); + P+ n+ b* a4 K7 W& M请问该程序是获得extend里面的哪个值?& k7 y- {4 Y/ o9 i [0 K' n
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????