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:# Y* X! b% _9 m p& ]7 L
Name = (WCHAR *) L"Poke";' C, n$ G% E P K" T
6 f/ Q: |( Q7 b3 v- j& s0 ~ hr = m_pDisp->GetIDsOfNames ( 1 t w3 k# F) L IID_NULL, // reserved' R: `# p- [! F' m5 ~ |! c
&Name, // Array of names to get IDs for2 I) K3 Q! Q/ @. y2 c
1, // # of names in the array9 ]1 ~! }( R2 w
LOCALE_SYSTEM_DEFAULT, // System locale4 b F' b; l3 E+ L
&pokeID); // Array of IDs to fill on output : o! |1 L/ I w* ?5 T; y( t ; U" U3 C9 [9 i' M0 ?5 f Z
if (hr) , B% V; x) q% t P8 ~ { " C4 C5 o, V+ k$ e MessageBox ("Get Poke Unsuccessful"); - n0 c& m+ o$ y: j return;* l' k8 d% A* K* L. Z: T
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, F: V+ D5 n& `( I9 `$ B/**************************传递数据给extend**************************************/ + m& n' u, `, E pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 s) y6 k' a3 g9 |/ l5 _2 Q0 U 9 h6 h- d: f: w5 h1 s9 P
valueStr = SysAllocString((WCHAR *) L"1232");+ _) B, N! g) W1 I d, J% f
VariantInit(&pokeVariant[0]); 7 h9 p8 {9 E) L& j4 m8 v pokeVariant[0].vt = VT_BSTR; 0 O# V3 r- H5 W& J& O) C' S) m pokeVariant[0].bstrVal = valueStr; " S9 A- X# ]+ O( T \ 8 T2 P0 E( q G$ K' S7 [" p$ P' D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( j& f+ G; w9 x2 l
VariantInit(&pokeVariant[1]); : Y& s3 A2 c& T, U X9 l
pokeVariant[1].vt = VT_BSTR; - {3 h' R( O9 \7 {9 d/ f pokeVariant[1].bstrVal = itemStr; . }' } x/ g+ |0 ]/ H9 a& g' e6 O8 K, X2 Z2 A1 B( c
topicStr = SysAllocString((WCHAR *) L"system"); % d5 t J' M: \ VariantInit(&pokeVariant[2]); * [7 C& B u" r: O$ y3 ` pokeVariant[2].vt = VT_BSTR; # X& ^' l( L$ y; P$ V/ Z! p pokeVariant[2].bstrVal = topicStr;+ h+ `) W. @) m- i: I6 P
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// Set the DISPPARAMS structure that holds the variant. + O8 k6 \7 ?& d% G4 _ 3 x. G1 A+ J8 B+ p dp.rgvarg = pokeVariant; 8 R, X% x: ?3 _! L. \ dp.cArgs = 3;+ }$ E( _, S& Y0 H) I$ A
dp.rgdispidNamedArgs = NULL; * M1 l* d( Q' ^5 T) Z dp.cNamedArgs = 0;$ a5 r4 [4 |! u. I& }$ d
8 R" c. s! F9 z hr = m_pDisp->Invoke(! V& e6 P6 {& e+ L. B7 @6 P
pokeID,( k* J0 T/ g; @3 _ m% q
IID_NULL, ) e, p) Y4 K* [$ L( k LOCALE_SYSTEM_DEFAULT, 8 x( `' n1 I; V2 Z DISPATCH_METHOD,( c" v" |/ V3 f A4 Z. p9 z
&dp,4 v4 }. p: A7 {
NULL, ( d8 L1 ]: y- l' v! j, s &ei, # v c" a& D* [- f4 W( y: V' y &uiErr);& Q# _) ~; w* o+ i* q n6 l
0 B# s" C. ` `; G' W SysFreeString(topicStr);# ~; R% J0 k2 r L# c) ?5 g$ M
SysFreeString(itemStr); ) P% t7 J b I3 y5 A SysFreeString(valueStr); ' M P3 l' T! e6 P, H) {' t0 [& T6 _* C1 a
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??? ) ^0 E- o) M+ p% N$ w7 C' }+ ?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????" `4 c0 q) Q1 o6 _* ~( j; R+ M1 s
, W8 s4 Q) Y7 V0 p , U4 U2 x7 p* G$ c1 W2.这是request的程序/ M+ o. d$ _7 o% S) a
// Request a value from Extend 8 B2 U& F: G, [* b: c7 Z7 O//) g! k0 e. r5 b( i/ J
// Initialize the variant that will hold the BSTR. Set the variant's1 f- B9 o3 @; `7 x2 y
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 B- C2 Y$ ]4 x2 _; k// BSTR into the variant structure.! x; B+ r9 _/ Y+ j
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 J) @1 s9 x+ F' S
1 c9 B, t9 Z2 t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) ^0 P) ^9 s$ p! } U1 v0 W5 M
VariantInit(&requestVariant[0]); % i8 J. Z9 ] w- S I( }
requestVariant[0].vt = VT_BSTR; : T! R, b8 m5 r1 W requestVariant[0].bstrVal = itemStr; l0 c" }" x6 ~; T3 `7 A
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topicStr = SysAllocString((WCHAR *) L"system"); * K) X) S3 G, _4 i8 M' [4 Y$ f8 k* J- b VariantInit(&requestVariant[1]); 6 {' P) J0 X+ h4 w0 ]0 ^* B N
requestVariant[1].vt = VT_BSTR; ! a& j; R* Q% }+ E( ^7 o requestVariant[1].bstrVal = topicStr;% x- j- O2 C+ _+ }3 [
- p' z7 q0 l. h& _ M+ c& ?8 C// Set the DISPPARAMS structure that holds the variant. 9 c& F/ }/ x9 F, N* M- h* ~) @ O0 E$ e: r. ?! ?) n
dp2.rgvarg = requestVariant;8 Q* _- z. S; S$ ~
dp2.cArgs = 2; 4 N6 T7 P7 t3 r/ \) v dp2.rgdispidNamedArgs = NULL; $ d- Q d" |$ K9 {* W' Q dp2.cNamedArgs = 0; ; u( R5 u( q! V1 P- B; V + e- @1 ~: m3 x* T( C var.vt = VT_EMPTY; [' ~" x6 n1 U7 \4 H+ N7 `, X- W0 M9 J% Y5 @
// Call IDispatch::Invoke() ; `2 w; c6 ~; A A! X0 P o1 n8 _# v
hr = m_pDisp->Invoke( ! U+ f- I1 {$ I# q3 f [ requestID,! Y# t5 h% H% [9 L) B1 m
IID_NULL,& {9 |; X' \6 F6 M* |1 E
LOCALE_SYSTEM_DEFAULT,9 r3 r" o2 ]6 u1 N8 `
DISPATCH_METHOD, . U& F& |& E' N: V0 W &dp2,+ f+ [, d! @# M6 J3 g
&var, , V _, T% r% D2 L' A9 }. m" } &ei,. R2 t' m5 w5 q2 q
&uiErr); - P p# B0 }$ ]3 {/ a 5 n) Y8 f; ?3 Z. y% y SysFreeString(topicStr); . a4 @9 Y" w2 l SysFreeString(itemStr); - J* H: Z, w7 J L: v请问该程序是获得extend里面的哪个值? 7 y( ]" c K' K( V& k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????