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:
6 H6 f# O5 y/ x9 p7 I Name = (WCHAR *) L"Poke";- P8 N9 C8 g: o7 B$ \- q# M6 x" P
* C s) Y+ {% u1 r7 N hr = m_pDisp->GetIDsOfNames (
- F6 u R8 Y, d& p, S" M" i2 R3 u IID_NULL, // reserved
6 v( [- m5 R8 ]3 r+ k- _9 M &Name, // Array of names to get IDs for
1 Y7 [: s2 R6 Q4 P( ~ 1, // # of names in the array! L0 k8 g& g9 m
LOCALE_SYSTEM_DEFAULT, // System locale0 A9 _7 A* c" J4 a; y
&pokeID); // Array of IDs to fill on output' u3 r$ t: |4 S. y5 H* }
: y: Z: o. A; B if (hr)8 B% h* @9 F: a( ]: Z9 _
{; O# ?& f9 v6 A
MessageBox ("Get Poke Unsuccessful");) T6 ~) B8 `1 i7 ]
return;' W# i& v$ w9 @- w* E
}
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# m" m5 n8 T+ D, B+ ~, R /**************************传递数据给extend**************************************/8 ~4 \0 t+ A1 F( G2 n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: o6 e3 ~9 |3 `5 d. }9 P% u8 b
, X: t1 ]. W5 L# Z/ ? valueStr = SysAllocString((WCHAR *) L"1232");
n2 h/ r5 S" \3 F VariantInit(&pokeVariant[0]);
5 S; n' D& y3 f8 V pokeVariant[0].vt = VT_BSTR;; @1 P6 q8 K4 y% E- U0 P0 V& {
pokeVariant[0].bstrVal = valueStr;
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, O5 c" O& j3 W7 z* R- x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ n0 q5 O2 v3 A! o8 b
VariantInit(&pokeVariant[1]);
- U9 z0 z$ W$ C; M pokeVariant[1].vt = VT_BSTR;+ @9 [ K/ f/ l$ A; F1 H
pokeVariant[1].bstrVal = itemStr;
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q- B+ ]6 Q9 w' U& a; X" m topicStr = SysAllocString((WCHAR *) L"system");
. M, m# y/ d/ ? VariantInit(&pokeVariant[2]); # V+ V! F4 x5 y8 I! Z6 v: A# l
pokeVariant[2].vt = VT_BSTR;
* O; H7 {: _1 g1 W6 k- l; ]- ~ pokeVariant[2].bstrVal = topicStr;) }, N9 u1 P# }, I
% S5 ?* z1 w+ p# z, i // Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;; e9 n- l3 ]0 i3 P* E# ]! e! L
dp.cArgs = 3;
& u9 X' |* Q7 y( K0 V# S+ j dp.rgdispidNamedArgs = NULL;3 c& }: e8 e N Q) B) M: j0 u6 x: L
dp.cNamedArgs = 0;
! v& |5 |% f, g
. ?9 c5 w; O# V- r, B // Call IDispatch::Invoke()
/ e$ Y ^ Y! E0 v' J3 Y+ ? + x5 n8 O; Y _1 s( H% r' H
hr = m_pDisp->Invoke(
9 ~) d1 f1 @5 T! m# E% l' M0 | pokeID,- ^" r- K, J- H" R( D6 N
IID_NULL,
3 E, t7 K2 y: t2 Y5 r2 R LOCALE_SYSTEM_DEFAULT,& j' z5 g" y- `6 @, O& C4 \1 B
DISPATCH_METHOD,6 j1 x2 ]/ a. W3 [* d& v! @+ c
&dp,% u" N7 ?6 n ~+ H
NULL,, @; w0 `& B5 @/ I
&ei,0 Q. j! {7 p) {6 `
&uiErr);7 K1 A! b. k. V" L3 ?! S3 U
. ?5 s, | H u7 B, b+ j) ?0 I, g SysFreeString(topicStr);3 c/ a0 S" ^$ W- Y7 K/ {/ {
SysFreeString(itemStr);. W- z: f3 _3 k! I7 A& D
SysFreeString(valueStr);
' H9 X/ t% Y$ t; M; @ * Z/ j8 D/ ?2 t# S- L* e# C0 [
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???" X; ~) S- i0 d8 H8 b$ @$ t
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????! R& a' ~1 o, e) U q6 F
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7 U+ M$ a2 d, X% w- }4 S
2.这是request的程序
1 s2 e$ V: d) Q* A& X' d6 S // Request a value from Extend1 T: \9 m( ~& t1 ?7 L
//
1 e% D. W% k r& J- V // Initialize the variant that will hold the BSTR. Set the variant's
5 @! S! _2 a* o5 p // type flag to indicate the fact that this variant holds a BSTR. Place the: [8 I7 Y- n) H3 i8 {2 d
// BSTR into the variant structure.
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! m/ I% i, }$ X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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B" a" [1 w. H9 [6 Y: E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
$ [4 j; l6 J6 v1 _( D& x8 K VariantInit(&requestVariant[0]); 3 Y: \* f8 _/ u
requestVariant[0].vt = VT_BSTR;
% i7 i! A, K, p; I requestVariant[0].bstrVal = itemStr;
3 G k& F/ F% S- M' Y" o
6 T! f- w# K. V$ I topicStr = SysAllocString((WCHAR *) L"system");
+ G: v5 l) [0 I ~ VariantInit(&requestVariant[1]);
( s( G% ^0 d# h" W requestVariant[1].vt = VT_BSTR;
S% N+ O# f8 M8 e9 O" ?) \: | requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.) h4 U' z- B; F4 |* v0 e
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dp2.rgvarg = requestVariant;# r$ M# C4 T3 T5 ?7 w
dp2.cArgs = 2;# w5 z; k$ K3 L6 t; c7 v
dp2.rgdispidNamedArgs = NULL;" {$ u. q/ p; ?' E$ k: R
dp2.cNamedArgs = 0;6 b7 B, e: m- m/ ?; \
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var.vt = VT_EMPTY;
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3 x+ E; D8 ~ v2 i // Call IDispatch::Invoke()6 H9 c) p/ |" b o5 y
6 B- X" D. Y7 b, m# `8 p" P hr = m_pDisp->Invoke(
; y9 i B* h* \, h1 ~% X) C, J requestID,* _3 y+ Y, d* W9 U" x8 v+ n
IID_NULL,5 c+ F. a. }2 }5 L2 {. M. x
LOCALE_SYSTEM_DEFAULT,
# s$ }# d7 F) [8 @9 ? DISPATCH_METHOD,3 R3 A+ ]& E& G
&dp2,) ?* I% s U7 N
&var,
9 I4 |0 \0 a9 w+ C% N0 [+ O- P &ei,7 s; Q7 g5 t5 a( q
&uiErr);
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SysFreeString(topicStr);- u- W3 L7 H' m" {0 p7 F' y
SysFreeString(itemStr);) _* }# L& j; S9 B
请问该程序是获得extend里面的哪个值?
6 L6 S6 R/ w) r; Z 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????
我来回答