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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：% e6 u7 u- ?4 f
Name = (WCHAR *) L"Poke";. P% t0 t. \; h
o" }) c8 a" u& W8 i7 H" H
hr = m_pDisp->GetIDsOfNames (3 v3 c- Z; Y' h$ `4 q0 B
IID_NULL, // reserved
8 K* Y3 A4 S# e) F O% _4 X Z3 `$ R &Name, // Array of names to get IDs for
: ^% z* q) H' u, [3 G) {: ?: g1 B 1, // # of names in the array
& s& k/ r0 m4 D- N) \* B LOCALE_SYSTEM_DEFAULT, // System locale+ I; Q+ l+ }/ b1 F# u4 h0 a s
&pokeID); // Array of IDs to fill on output
7 J# [2 ]# b4 P( j1 G% ` 4 e( b& a" |; x6 O
if (hr)% c; N+ ^- i2 Q, b0 T8 M3 [
{
; d: Z7 E2 a* _9 e4 D, z MessageBox ("Get Poke Unsuccessful");4 v U; a$ `# l* A" i4 t
return;
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/**************************传递数据给extend**************************************/
5 G7 z+ L5 v7 O" u: K) @! x1 z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 n" W' G% s1 n1 L$ t4 {" w
% h7 J% V7 j* Y# g/ R; x. k# U valueStr = SysAllocString((WCHAR *) L"1232");# q) K% t- {# M1 y9 M6 K
VariantInit(&pokeVariant[0]);
j6 M: V$ b! g: C" A pokeVariant[0].vt = VT_BSTR;% ` j) q1 b5 W% Z
pokeVariant[0].bstrVal = valueStr;
" @4 R9 }0 i; r- R- }
' y& Q0 r& x H7 i3 b5 J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
8 j; w4 v/ h( W VariantInit(&pokeVariant[1]); - d1 L# U( q! T* z; H
pokeVariant[1].vt = VT_BSTR;
, c. X, l5 Q x9 G; F( N# O/ H pokeVariant[1].bstrVal = itemStr;1 ~8 j- q/ j* s+ S$ ^) u" o5 l
3 p. H ]9 O6 m4 J topicStr = SysAllocString((WCHAR *) L"system");" u" E9 o- M9 t" g4 B! a# @% t
VariantInit(&pokeVariant[2]); ; Q' R* x1 w) }; W# | M2 S x) W+ @
pokeVariant[2].vt = VT_BSTR;" B- c' n9 l$ N( F
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.7 Y( u! d" I+ p& E% b
4 ^! F- D6 \- o9 ^+ p
dp.rgvarg = pokeVariant;7 k: B) b/ o- Y. b% P D
dp.cArgs = 3;7 b) R" F+ L2 j6 h0 i
dp.rgdispidNamedArgs = NULL;
5 R0 w+ A1 M: V- U1 }9 c dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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9 _3 S' G' L6 u9 M9 i hr = m_pDisp->Invoke(
7 ~. x" K4 l X' L pokeID,
/ N3 ]& x6 C* O2 I IID_NULL,; d3 e' O* u" r7 U
LOCALE_SYSTEM_DEFAULT, y3 x% b+ _ e# ~9 e/ A; ]$ k
DISPATCH_METHOD,, m, x6 v5 ]; \; }% I, g2 Z
&dp,
* J9 ~. K& m: r NULL,
9 I' ^) g. d7 l &ei,
8 [7 y8 D( D$ n% r9 M* V &uiErr);/ N3 |, @+ e3 H) F d9 E
6 d$ Z0 M: T3 ~" b$ Z
SysFreeString(topicStr);' F+ y* u( B7 j& Z E8 J
SysFreeString(itemStr);' c; ]1 f. l" q8 e* M
SysFreeString(valueStr);" ^/ ?' D5 y9 v+ G+ r
8 `4 B( ] q; T: O9 D, a: R7 U1 W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？？？# v* ^6 L' N6 [9 s* a
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？？？？
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4 }, B# q! g; k: I% d2.这是request的程序9 }% C- _) `" d: z4 j& f9 _9 X
// Request a value from Extend
% _+ Y4 R/ s) _8 @$ d! `, S//
; T! R6 r2 [) o [! M* o5 v7 a# Z& Y// Initialize the variant that will hold the BSTR. Set the variant's
. y5 |/ w+ X4 q( W5 `// type flag to indicate the fact that this variant holds a BSTR. Place the j) \' o" I3 {( m4 e' x
// BSTR into the variant structure.* }$ X; G1 M V( n' r
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ ^9 R# q* Z+ `3 B' i0 `
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( R7 w8 p) S, I* ?9 K
VariantInit(&requestVariant[0]);
1 i) d/ q, M0 W9 j L/ ^& {+ S requestVariant[0].vt = VT_BSTR;
0 c& _* X, G3 z requestVariant[0].bstrVal = itemStr;: \- @2 ^# c" K% P0 i
6 ~4 i% r- T8 `4 @: _
topicStr = SysAllocString((WCHAR *) L"system");+ z. ?% t) L+ n" g$ D; s5 h: S
VariantInit(&requestVariant[1]);
. D( t, m5 u$ e8 e% ?- V O- p4 L requestVariant[1].vt = VT_BSTR;* I; }1 ]* Y$ a1 C% s3 m
requestVariant[1].bstrVal = topicStr;9 I% F) ?) e8 Q& E, G
) a' R# I2 g) u& i' r0 X// Set the DISPPARAMS structure that holds the variant.
9 _1 q! K' o0 E
k5 k: i. a& P dp2.rgvarg = requestVariant;; ^% d: {9 b8 k+ f. \! @. O
dp2.cArgs = 2;% f. b9 }3 j- y$ \, M
dp2.rgdispidNamedArgs = NULL;
* t; {! j" u- f2 y6 m9 D* t; { dp2.cNamedArgs = 0;* l* d% j) x1 f
: i$ ~% M9 D- }% u. W$ j- a var.vt = VT_EMPTY;
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// Call IDispatch::Invoke(), s( B3 C# k4 o* k3 f! m8 t/ p! r5 m
: D0 o4 ?# U! F1 F) T' A. L hr = m_pDisp->Invoke(2 T' A" F D" ^9 Y* c' X8 f; e
requestID,
8 K% Z. o' M+ b2 ]& }- b. i2 H3 b0 u e5 r IID_NULL,
9 @$ u- {# Y, B9 U LOCALE_SYSTEM_DEFAULT,4 K$ g- U" g+ p4 r1 N
DISPATCH_METHOD,% P, ^5 a% v; H2 @ \6 V
&dp2,$ v' X# M E+ r+ x! Y' A- _
&var,* e# y+ F% J- l2 M* S
&ei,' \4 k0 O$ y2 p
&uiErr);; f; y/ I0 a7 {! l1 o2 n- A
% A$ K' E6 s/ y1 y3 o2 q- {
SysFreeString(topicStr);
" ^# d2 x8 F. f" {& d7 g SysFreeString(itemStr);
% h5 a/ L" b3 V5 k, y" {* S请问该程序是获得extend里面的哪个值？
7 \% }$ k1 {, i- Y) u9 F" `6 t# i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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发表于 2008-11-25 19:37:03
