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:( I8 v' y9 j! ^ c
Name = (WCHAR *) L"Poke";
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/ `- c/ e* b2 L+ h* W hr = m_pDisp->GetIDsOfNames (
! M0 }; \ v7 G7 S IID_NULL, // reserved2 S: B$ r; v+ Q. ^6 u* p
&Name, // Array of names to get IDs for7 A, d$ C! J, }
1, // # of names in the array
1 u- @; a/ q5 Z5 W LOCALE_SYSTEM_DEFAULT, // System locale9 k( ~7 ~7 N$ k. ], B
&pokeID); // Array of IDs to fill on output
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if (hr)2 t4 v) t& r4 V+ D( ?0 d
{% l7 C A9 O: P' l1 T- b' I
MessageBox ("Get Poke Unsuccessful");
! b# n9 H) I& g return;
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6 p, {5 L& W( I- {& k) ] /**************************传递数据给extend**************************************/0 r- ]. Q5 ?( J! i- ]' W n' x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ Y1 y5 u5 ]5 Y2 |5 f' J9 N7 ?2 c5 E
- D/ {( |6 h% `% ~0 A valueStr = SysAllocString((WCHAR *) L"1232");$ T2 w0 b2 w6 ?
VariantInit(&pokeVariant[0]); - {# L+ \; l! I! a# @( f
pokeVariant[0].vt = VT_BSTR;
# D) {, ~9 r/ P1 g* Q p pokeVariant[0].bstrVal = valueStr;5 y) P" {7 J' N e! F* u: Z
- [! K/ _( H4 o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
- Y% y. h* H7 ?6 a VariantInit(&pokeVariant[1]);
* `6 B& i$ T2 K& Y4 F! L pokeVariant[1].vt = VT_BSTR;
! [4 g) W3 O) a1 d' }) Y* }5 H( p pokeVariant[1].bstrVal = itemStr;4 Q, A# G$ s) b3 `# g0 b
9 n! l) {2 a7 p: d1 p: W topicStr = SysAllocString((WCHAR *) L"system");
' \$ M$ W( }0 O+ ]; m VariantInit(&pokeVariant[2]); . O7 O* Q U# p+ ^
pokeVariant[2].vt = VT_BSTR;
7 }) ~5 u/ }* |: F; ?* d pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.6 ]3 H9 N0 G! v7 i. q9 ~5 I" G
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dp.rgvarg = pokeVariant;% ^+ s2 V9 }& N8 f
dp.cArgs = 3;
^1 K' } r" z% H6 _ dp.rgdispidNamedArgs = NULL;
7 f \% _& w- K4 r" @) F# n dp.cNamedArgs = 0;
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5 n% f. O. w _5 p# X% { // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(7 c9 s+ M8 z7 |* y4 T+ `3 j6 I
pokeID,
, ~/ B) J- r+ ]+ G V IID_NULL,* |6 |& Z7 C3 `7 v6 I; `
LOCALE_SYSTEM_DEFAULT,
* r4 x& r$ n. y! d! D% } DISPATCH_METHOD,9 f$ h6 b' W& f/ \8 s# G
&dp,
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&ei,, {; q/ s# Z4 c( j& F
&uiErr);
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SysFreeString(topicStr);
+ ~* W0 k' b% g# k$ m4 d SysFreeString(itemStr);* _4 B9 R5 F$ s! s u
SysFreeString(valueStr);
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7 U, S. y4 J3 [" D. s! x) t 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???/ L0 ^% {8 h; D5 [4 j( v W
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????# X% {4 ~) E' B1 H
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2.这是request的程序& d( T6 r: M+ g7 Q( x6 T6 B
// Request a value from Extend
( j% l3 @7 c& N- Q& ? //. ?/ H& I' y a6 {% x+ {$ i) Z
// Initialize the variant that will hold the BSTR. Set the variant's" G9 X* y, Y/ y8 J) n
// type flag to indicate the fact that this variant holds a BSTR. Place the9 @: P: D7 V6 V. O
// BSTR into the variant structure.
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# P" T, z8 m5 @0 B3 O! _- L requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 O& H# q/ M: @: P0 ^
$ v6 y. Z6 L/ l( {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
" S, G; N6 s3 X4 i0 J5 w VariantInit(&requestVariant[0]);
5 _0 s j. m) ~. @ requestVariant[0].vt = VT_BSTR;) ]0 M% l9 I+ U
requestVariant[0].bstrVal = itemStr;* c8 J' s# C; o! ]
+ Q! a0 T0 \: H: P, ~+ }
topicStr = SysAllocString((WCHAR *) L"system");. o( n# B/ L3 c# x1 L* \* p" [+ j) `
VariantInit(&requestVariant[1]);
# n7 k% Q& K+ A* | requestVariant[1].vt = VT_BSTR;7 i' B, k0 u( |; E9 A C
requestVariant[1].bstrVal = topicStr; H, g6 F/ [ u! N2 I2 ^& F8 P+ }
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// Set the DISPPARAMS structure that holds the variant. O# ]& U" T. L- x- Z0 z% B8 Z: \
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dp2.rgvarg = requestVariant;; y* ~ q) R9 r- S9 e4 G
dp2.cArgs = 2;3 A+ q' B. o: a& x7 ?& o6 S" s
dp2.rgdispidNamedArgs = NULL;) Q, ]) _6 A! k- \* B- z
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;" Q4 `4 z$ A4 R7 N" I0 z4 X9 j* O
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// Call IDispatch::Invoke()) R: r5 [- ~4 L' ?) a" O
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hr = m_pDisp->Invoke(+ {4 }# K; r' x" ?$ i: X4 j
requestID, _4 y/ x1 E2 ^# K/ R' w
IID_NULL,5 m9 ~/ j8 Y9 U0 Q
LOCALE_SYSTEM_DEFAULT,
9 u$ J+ E+ Y) ^' J8 g( k: y DISPATCH_METHOD,% y& N; ^+ [, o! w3 R
&dp2,
+ Q+ V, ~$ H, T, ~% b &var,$ [* ^/ _: p( S' j
&ei,* I: m! n+ z- k; @
&uiErr); ^) q$ d0 u7 Q/ O' k0 t" s6 B
a4 m5 [ j, H
SysFreeString(topicStr); G/ u d. U/ X6 L/ o0 m8 N- j
SysFreeString(itemStr);1 z* U: M) J0 @+ |1 f: i! Q$ ~
请问该程序是获得extend里面的哪个值?
! N$ b5 |6 h) f8 {; Y9 \ 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