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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:
% O4 p5 C4 K: u' @; x( jName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
8 E, {9 L$ {2 |2 f# }8 C% R IID_NULL, // reserved& o: ?' ?# t' d
&Name, // Array of names to get IDs for+ `8 G1 l) _ E5 Y5 s
1, // # of names in the array
: V; o5 b, n( r6 }& ^7 A LOCALE_SYSTEM_DEFAULT, // System locale
) |* {4 Q2 B9 H) s! W4 [ N &pokeID); // Array of IDs to fill on output
) b c# ]' D" z* u$ x4 b
; \3 U) d- k/ a. c1 k if (hr)
: U5 D9 f- S& v/ S0 a/ n {
/ {+ { M! c& N3 R MessageBox ("Get Poke Unsuccessful");
6 m0 @& m t" x8 J return;
/ ~. z' K8 I; ]% Z6 u/ X }8 i, ]7 s. F9 Y; d8 e1 p) z
8 K3 [; Y% E. T1 r/**************************传递数据给extend**************************************/' w, `) k C( z: w9 a4 J( j" |
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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( W* l" B& W$ t( H" Q& S0 Q9 J- k valueStr = SysAllocString((WCHAR *) L"1232");, |& z9 \9 B1 K1 }3 [
VariantInit(&pokeVariant[0]); 8 d& p( G! M O
pokeVariant[0].vt = VT_BSTR;
]* P& }& K( B/ [6 w& ] pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: C, J a% C1 g- Y7 l% {
VariantInit(&pokeVariant[1]); % ]3 i( z9 c6 X+ G8 N/ Y* [
pokeVariant[1].vt = VT_BSTR;3 p X) ]3 {9 _. `
pokeVariant[1].bstrVal = itemStr; _2 R+ c3 f( R0 D# y/ A, n
+ c2 A* \) z5 _9 y8 i topicStr = SysAllocString((WCHAR *) L"system");+ D8 U U9 ^3 c7 `3 z( a
VariantInit(&pokeVariant[2]);
/ j: D: Q& u' L pokeVariant[2].vt = VT_BSTR;) u# S' g; j+ S4 \! x0 T" O
pokeVariant[2].bstrVal = topicStr;: |. ?" @0 x4 I# @0 Z1 [& C; V) s
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// Set the DISPPARAMS structure that holds the variant.! j! t1 P) D! Y7 E+ Z$ H+ o0 Z
0 ^+ G, u; i3 ]7 S( C* q1 ?; Y dp.rgvarg = pokeVariant; B) m2 t) E/ f( ?
dp.cArgs = 3;+ q/ A- J! l0 `. k9 n
dp.rgdispidNamedArgs = NULL;
% k: V: @& j# `- c+ F: C& L# S0 L4 G dp.cNamedArgs = 0;
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& a3 r3 N: u2 T// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(. t0 d4 R5 u) u& k
pokeID,+ g6 v/ _# R4 |3 L* ~4 r& R- r
IID_NULL,. A+ p0 b) {8 m( S
LOCALE_SYSTEM_DEFAULT,
) T. y. U( Y* V' c DISPATCH_METHOD,
: M f7 F7 G% K9 r &dp,
( A$ c1 K# n4 S) L) m NULL,
. T9 M- ~" T1 a8 }" G: S &ei,
+ A; I) z& e; c &uiErr);
+ K4 U! c+ F, a' t
+ Y8 H5 t9 p- c' H7 Z# c$ R. o SysFreeString(topicStr);/ X0 H7 h2 R! k4 ?
SysFreeString(itemStr);
1 S' J* q, T& }/ @$ Q SysFreeString(valueStr);* l' X5 p1 c) N5 L
; y. h |; M! x+ Q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???# e6 |& H9 q8 N) }
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????) E5 C& K- M" ], I& q! m* j
# {3 |4 B+ o3 X3 U
. {8 N3 m! `& c5 u2.这是request的程序% ^9 T* {5 }' ~3 d3 e0 v
// Request a value from Extend* t- e) R3 a; ?3 G0 z' [' F
// p5 t+ k+ F9 D' b* x5 e
// Initialize the variant that will hold the BSTR. Set the variant's/ d% m0 Z F% N2 ]4 J2 T
// type flag to indicate the fact that this variant holds a BSTR. Place the
1 i5 c+ n1 E; r9 Q4 ^// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
$ s. w Y' \. N' G5 j6 \' z VariantInit(&requestVariant[0]); 5 H C8 C! |6 a' J* i
requestVariant[0].vt = VT_BSTR;
4 g8 r0 x: b9 B; E/ R4 y- w requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
o$ V$ Y0 J$ Z- I VariantInit(&requestVariant[1]); 4 Z* N G: {8 L! y7 v T2 k5 A' n; n
requestVariant[1].vt = VT_BSTR;
& Q. L- ?( @8 p' j requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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' o* N) d) F- I* @9 p* w3 e1 k dp2.rgvarg = requestVariant;1 E+ z) J5 }' s3 F7 I$ }9 H* `
dp2.cArgs = 2;# M8 s3 E; `% G7 v$ P
dp2.rgdispidNamedArgs = NULL;
5 c/ f' c0 n4 b: v' o$ t, _ dp2.cNamedArgs = 0;$ m. J$ {) q; ?0 h) w
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var.vt = VT_EMPTY;5 F) d! T, R' G( X" ]
& V& r. ~' H* W
// Call IDispatch::Invoke()& X Y3 A: i: R* ~
& S# v6 I4 `1 k& e2 z* G# t hr = m_pDisp->Invoke(
0 @+ `" r! }4 q* k requestID,9 R- C5 u7 Y2 m/ Z$ r
IID_NULL,* Y9 ` F( m2 k1 D, G# Q
LOCALE_SYSTEM_DEFAULT,
8 P1 l# h# C; ?4 |$ M: F( \: t. b DISPATCH_METHOD,+ |: L: w. \1 e, b
&dp2,8 F" R$ Q) i3 h% M% i, q9 `. P
&var,( @* g/ i D3 O4 I' M
&ei,- E2 n- S! n. K/ k$ a
&uiErr);
+ {0 e8 k% i. c: A4 \+ }2 ?! [- z( V
SysFreeString(topicStr);: E7 V7 k% D4 c) q( U& o* h" k
SysFreeString(itemStr);
1 e- H; ?+ m' @2 a1 X请问该程序是获得extend里面的哪个值?- D+ J d: I/ r2 a8 l
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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