gdal庫的使用 vb編程怎么調(diào)用.Dll庫函數(shù)?
vb編程怎么調(diào)用.Dll庫函數(shù)?VB prepared DLL:注冊DLL,引用DLL,私有XXX作為DLL類名,格式為uuu加載初始化:在新DLL中設(shè)置XXX=類名或:注冊DLL,設(shè)置XXX=Cre
vb編程怎么調(diào)用.Dll庫函數(shù)?
VB prepared DLL:注冊DLL,引用DLL,私有XXX作為DLL類名,格式為uuu加載初始化:在新DLL中設(shè)置XXX=類名或:注冊DLL,設(shè)置XXX=CreateObject(”項目名)。類名“)VC編譯標(biāo)準(zhǔn)DLL:private | public declare function | sub function name lib “DLL name ”[alias “function name in DLL”](參數(shù))作為返回值類型示例:declare function BitBlt lib “gdi32”alias “BitBlt”(ByVal hdestdc as long,ByVal x as long,ByVal y as long,ByVal nWidth as long,ByVal nHeight asLong,ByVal hSrcDC為Long,ByVal xSrc為Long,ByVal ySrc為Long,ByVal dwRop為Long)為Long