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 ~- {* q8 L) \, SName = (WCHAR *) L"Poke"; - t% R2 Q! J+ T$ S & y$ N( j0 T1 O; z7 D* ~ hr = m_pDisp->GetIDsOfNames (2 |0 x0 t4 i0 S
IID_NULL, // reserved ' e$ C! H. L: ] &Name, // Array of names to get IDs for " w1 d1 }6 k( u: G9 @$ g# b9 X 1, // # of names in the array ( M% y8 T5 Q7 p" X& S1 ] LOCALE_SYSTEM_DEFAULT, // System locale- Y! N" l' d2 |( \
&pokeID); // Array of IDs to fill on output3 {) {# w P0 Y
+ x$ V& u& p4 H1 [) g7 b if (hr), S9 h- b l3 u0 K, x9 l# T1 p
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MessageBox ("Get Poke Unsuccessful"); 9 S8 |4 ?% l2 ] return;. F [! C4 N4 N! q8 |3 u5 }, n
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/**************************传递数据给extend**************************************// W) L% ^* @& R' A
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) _/ U: r6 _) K) q- V
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valueStr = SysAllocString((WCHAR *) L"1232");9 P# L% n7 N2 L% b# v; } w
VariantInit(&pokeVariant[0]); 9 k, v! h* E5 i( L3 k/ {4 B1 A$ [ pokeVariant[0].vt = VT_BSTR; 4 j# R& i& `9 g) K' j pokeVariant[0].bstrVal = valueStr;' S: J& Y' e5 y: T6 A
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); N+ o& z9 `$ L2 h0 O$ J/ I VariantInit(&pokeVariant[1]); 8 n h+ o1 R0 t5 k1 D9 M
pokeVariant[1].vt = VT_BSTR; 2 J- e W5 v% r* i4 w. F pokeVariant[1].bstrVal = itemStr; 2 ], e: A$ y @+ E# v ) L5 G$ j" ^+ L- ^, l0 i0 _2 ~- M topicStr = SysAllocString((WCHAR *) L"system"); $ n! e* g& }* G5 K9 H2 d8 ` VariantInit(&pokeVariant[2]); % Q! ], ~( n3 S7 v) F. w pokeVariant[2].vt = VT_BSTR;* Y" J/ n8 s/ c+ @ r6 u5 o
pokeVariant[2].bstrVal = topicStr; 6 |, \: W6 [& k, k 9 y! u# j; Z5 J5 |$ _1 k9 ^/ s. d// Set the DISPPARAMS structure that holds the variant.% N: d& D q) N
O, C4 u" ]. j" C5 X dp.rgvarg = pokeVariant; ^3 K+ ~/ s" c9 x
dp.cArgs = 3; % y ?- A4 [2 C# x dp.rgdispidNamedArgs = NULL; 7 B. |" B' B, h3 R9 Q# {) v dp.cNamedArgs = 0; 0 e2 D) n9 t+ f6 h. ^$ H4 ^4 i! Y, ~* x, T8 Z, j* b
// Call IDispatch::Invoke() + Q8 U# e+ G4 s$ a" M8 D. h 1 O; B7 I, L% k- T% I9 v. c hr = m_pDisp->Invoke( ) m% v1 F: x& v9 |- O pokeID,% Q" ~, w3 d4 ~; ?4 q6 c% y* [6 V
IID_NULL, ; \! x1 P+ c9 c1 S2 h- y LOCALE_SYSTEM_DEFAULT,5 |' y# ^3 A: W- y6 U9 o" Z
DISPATCH_METHOD, 7 C5 L' C: i) w2 g" u4 ^" G' E$ U" }& u &dp, # Z' b$ m0 T0 Y! Z+ c. n NULL,, ^4 B( f+ V& P! n# c
&ei,2 @) g* Z8 C5 T) n: `$ d& a! J
&uiErr);& b0 |; W+ H3 P3 L" v# \
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SysFreeString(topicStr); * _: E8 O! L9 D( P1 k SysFreeString(itemStr);: t. l8 x. F( ^, \4 B) x
SysFreeString(valueStr); 6 a9 A, P9 H* W6 \4 g! Q, x& M ; X- C# r7 W6 u+ ]6 A6 f* P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 V- U) P; {2 D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????8 I% B/ l; [0 X
3 Q8 u- m: q: Y9 z + q0 c- V; q F/ @2.这是request的程序 " J! S5 m+ m. n// Request a value from Extend- M/ B- m) W8 {7 U$ _! o/ ]
// 8 u% u' Q! s7 j" q+ H// Initialize the variant that will hold the BSTR. Set the variant's * c3 b) P2 U4 a+ m; i. D: R// type flag to indicate the fact that this variant holds a BSTR. Place the' r( r0 ^# t& g5 B9 r- O
// BSTR into the variant structure.3 w- Y1 X( n0 H; x" m9 y
; P. r- ]: F/ h# ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! J' i- u, f, ^ k8 T* n / j. w8 M; N* i t- z# |6 b$ J
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& v1 _0 B& \% p
VariantInit(&requestVariant[0]); ) q- L+ g- L6 d9 \ requestVariant[0].vt = VT_BSTR; G3 ~6 i( L3 T6 Y& r
requestVariant[0].bstrVal = itemStr;) o, ~/ O6 g) i( A: n% H
/ u" Q6 t0 T0 A ]* e9 X topicStr = SysAllocString((WCHAR *) L"system");. S. ^8 L X; l0 z
VariantInit(&requestVariant[1]); $ D+ O `# H8 u* U# o! X6 o
requestVariant[1].vt = VT_BSTR; % h% }4 G& n+ p C requestVariant[1].bstrVal = topicStr; 4 z" Z0 X% q6 u f; k/ B/ Z: u, A# z
// Set the DISPPARAMS structure that holds the variant.$ K B( U. |( _$ Y# o1 T
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dp2.rgvarg = requestVariant;4 c/ [- `' o- ?$ k4 x
dp2.cArgs = 2; * d5 s( v+ K4 E, C. t: x dp2.rgdispidNamedArgs = NULL;2 b9 D* \* O( p+ g+ U& v4 b
dp2.cNamedArgs = 0; 7 q2 o1 p3 {5 n5 g0 O; P. r M/ N, {8 a, ]) g; z- r
var.vt = VT_EMPTY; ; s* s F, {7 A" k) }/ D& h* _& ~7 z z
// Call IDispatch::Invoke() l3 k$ o; n. _# Q - e" b. t6 X; { hr = m_pDisp->Invoke(( |* f5 \# U ~, u/ g
requestID, ( G! U. S; @1 {% H! l( t IID_NULL,3 Q! B/ [9 o- p/ Y% V. f& D2 u, `
LOCALE_SYSTEM_DEFAULT, - H; v4 j' K2 J+ M" U DISPATCH_METHOD,+ Q% ~$ i* Y7 [6 q6 x: `
&dp2, + _" E2 z4 l% t* N7 I8 G" i &var,0 @9 r8 h+ ^" _* t+ r
&ei, % j4 w8 `3 p4 i A0 ^, v, o! B9 } &uiErr);. Z& [% P* n O5 `3 E) M% F
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SysFreeString(topicStr);5 u$ t) g9 b0 V
SysFreeString(itemStr);- Z) r% r4 g$ n {
请问该程序是获得extend里面的哪个值? % p# \" S0 R3 d/ g: F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????