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comMAKINGDLL'SINMICROSOFTVISUALC++6.
0MAKINGDLL'SINMICROSOFTVISUALC++6.
0Example1:WorkingfromtheCommandLineNowwemakeaone-lineDLL.
Here'sthesource:extern"C"__declspec(dllexport)voidmyfun(int*a){*a=-*a;}Savethistofilemyfun.
cppandcompileitfromtheDOSpromptwith:cl-LDmyfun.
cppThe-LDswitchsaystogenerateaDLL.
Nextwemakeanexecutable,whichcallstheDLL.
Here'sthesource:#includeiostream.
hexternC__declspec(dllimport)voidmyfun(int*a);voidmain(void){inta=6;intb=a;myfun(&b);couta<<"is"<\n";}Savethistothefilemain.
cpp.
Thencompileandlinkfromthecommandpromptwith:clmain.
cpp/linkmyfun.
libExecuteitfromthecommandlinejusttype′main′.
Example2:UsingVC++IDEtoCreateDLLInMicrosoftVisualC++6.
0,youcancreateaDLLbyselectingeithertheWin32Dynamic-LinkLibraryprojecttypeortheMFCAppWizarddllprojecttype.
ThefollowingcodeisanexampleofaDLLthatwascreatedinVisualC++byusingtheWin32Dynamic-LinkLibraryprojecttype.
//SampleDLL.
cpp#include"stdafx.
h"#defineEXPORTING_DLL#include"sampleDLL.
h"BOOLAPIENTRYDllMain(HANDLEhModule,DWORDul_reason_for_call,LPVOIDlpReserved){returnTRUE;}voidHelloWorld(){MessageBox(NULL,TEXT("HelloWorld"),TEXT("InaDLL"),MB_OK);}//File:SampleDLL.
h#ifndefINDLL_H#defineINDLL_H#ifdefEXPORTING_DLLextern__declspec(dllexport)voidHelloWorld();#elseextern__declspec(dllimport)voidHelloWorld();#endif#endifLoading[MathJax]/jax/output/HTML-CSS/fonts/TeX/fontdata.
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