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5仿真币
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:
! u0 I7 A9 y5 eName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (* Y4 o7 S3 _0 @" ^2 v. W
IID_NULL, // reserved
% r& X+ ?! ]6 [4 j2 N9 n &Name, // Array of names to get IDs for
$ H; ?6 N* ^1 B, Z) o 1, // # of names in the array
1 z2 ^( P9 Q4 u- p7 ~ LOCALE_SYSTEM_DEFAULT, // System locale8 _& l/ H/ G2 h, k- j
&pokeID); // Array of IDs to fill on output
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! d3 F0 H. X A+ c* H if (hr)6 `# X8 m1 X; a( r. e- n! l
{% ?3 G6 X5 P' g2 H6 x& g
MessageBox ("Get Poke Unsuccessful");
0 f7 f9 z6 L) {$ o return;
4 o! h$ Z& U) y }
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5 C X: u3 }5 D3 e# K3 _9 S, K/**************************传递数据给extend**************************************/3 l. e6 E$ l2 ?3 [8 ^
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 a- x0 k: K8 L5 c w1 w( r
2 {6 M$ {4 b" N0 |( I; A8 W) A, b6 [ valueStr = SysAllocString((WCHAR *) L"1232");
. A) X3 o& T5 v. d) g m: Q VariantInit(&pokeVariant[0]);
8 e8 u$ m1 p1 S$ V: _8 M pokeVariant[0].vt = VT_BSTR;7 O* W R! A8 f) u: f
pokeVariant[0].bstrVal = valueStr;
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6 r7 u f6 M/ C+ Z2 m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 A3 b' T7 ]: q2 }6 D
VariantInit(&pokeVariant[1]); 8 A0 E) {0 B# N, O& H, F% Z- r% u) M
pokeVariant[1].vt = VT_BSTR;& ^9 H8 Y8 B: h
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");1 _6 @1 U6 M) O; u; \0 c: a
VariantInit(&pokeVariant[2]); ! d; T- F; M2 u, B- W) o& @6 p
pokeVariant[2].vt = VT_BSTR;! d. i4 w9 t. e& G8 D2 K
pokeVariant[2].bstrVal = topicStr;7 [! d& X9 z- z3 z
; ]% o5 @3 R: \* _' d& v$ K// Set the DISPPARAMS structure that holds the variant.# b {/ F' h" x6 k: v& f% Z) j& C
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dp.rgvarg = pokeVariant;
0 u8 x* }5 l! X8 p* n) ` dp.cArgs = 3;
2 z5 H1 j$ _! v0 |, M* s3 ` dp.rgdispidNamedArgs = NULL;
. D* n" w; `7 M, x0 Q dp.cNamedArgs = 0;+ b0 o( _% Q1 A& y4 W( Q6 {
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// Call IDispatch::Invoke()
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$ [+ \; [$ f5 E2 a) ?0 [0 P hr = m_pDisp->Invoke(% u( S$ {+ w+ R
pokeID,
8 P0 {8 W& b9 \9 Y1 t8 } IID_NULL,+ U9 C, j* ^. b3 M i" f$ c e
LOCALE_SYSTEM_DEFAULT,
. d3 ]6 ?* L8 Y; _ DISPATCH_METHOD,
+ x( r7 e* `4 e' R y3 ?% @' ^) } &dp,
7 |$ n2 T& U" g+ `8 k: b NULL,
9 V' u# W. \8 R! ^/ `0 T! E &ei,* S8 Z. i7 H; \ z7 Y7 D
&uiErr);3 n# ^; q! m! K0 ?; Y
0 h% {. O! q: B4 f5 W d8 ^ SysFreeString(topicStr);, G1 |" a% M& A @6 K/ D+ U
SysFreeString(itemStr);* r/ V$ ?# G F* {5 g6 @: I/ y
SysFreeString(valueStr);
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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???
: e; A# o3 O; z6 |$ ?0 Y. U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????) z& q# Z9 h2 o7 y* S2 A- J* @
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0 f# a( [- g6 H% g2.这是request的程序
+ K; m" L$ }) P" H1 G+ Y2 V// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's7 M: b2 c2 ^6 j& L7 E
// type flag to indicate the fact that this variant holds a BSTR. Place the
2 E! b1 Q, Z# b6 d6 n' v// BSTR into the variant structure.
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3 C# n0 @, [6 Y! m2 ` requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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' I0 Q1 |$ I+ q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
! f3 T% g. C& y L VariantInit(&requestVariant[0]);
6 Z5 W7 ?5 e. o% |! x6 J requestVariant[0].vt = VT_BSTR;
5 \) i0 r) W- z( n- U requestVariant[0].bstrVal = itemStr;
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- K5 W0 Q. C% V6 S" v8 Q topicStr = SysAllocString((WCHAR *) L"system");, u$ ~. y1 g+ T, T( r; L4 d8 g
VariantInit(&requestVariant[1]);
( @' s; y% T% D" M) @( [) j requestVariant[1].vt = VT_BSTR;2 [, H* i8 L- F: G. v
requestVariant[1].bstrVal = topicStr;0 l- J" T) W* w+ H) D8 ^
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// Set the DISPPARAMS structure that holds the variant.6 m1 O& v m) n
2 ^* l" \# [2 m5 [# [4 K$ C dp2.rgvarg = requestVariant;6 ]8 f' i; r4 L' o! I f
dp2.cArgs = 2;+ |1 t+ b* Z0 N% O1 ?* P6 F% @3 Q% W
dp2.rgdispidNamedArgs = NULL;5 ~/ X& g- M# J/ ~ Z# s; C
dp2.cNamedArgs = 0;; i+ a7 N& |, h" k* j% O
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var.vt = VT_EMPTY;
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+ \& _ K8 e. {7 U" t// Call IDispatch::Invoke()+ q! k2 k" g! q' e: ]/ U% P
* F7 x/ W9 T$ J( c" M* ? hr = m_pDisp->Invoke(/ U2 s" s8 s$ L& F4 W! G
requestID,
- Q/ I* f0 Z. K" o3 J7 L- q IID_NULL,
# H S4 l/ ?: ?/ e; [7 o LOCALE_SYSTEM_DEFAULT,1 U7 X3 Z/ ?0 m
DISPATCH_METHOD,- {% G+ e! @! N
&dp2,
6 w v- R/ n7 c- }5 _0 c5 K0 w &var,; {7 j( ~ P* \7 o. l- N
&ei,: ]3 a" _0 W; w- T+ q
&uiErr);
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1 w* Q( ]: \1 { G" }3 H SysFreeString(topicStr);0 p6 v. v9 D/ ~9 d( q/ X4 g4 `9 M
SysFreeString(itemStr);
4 M4 f; J0 v- B7 {" {, [请问该程序是获得extend里面的哪个值?5 n9 G7 m4 p7 g. n. _5 N9 H
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???? |
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