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103 lines
2.6 KiB
ObjectPascal
103 lines
2.6 KiB
ObjectPascal
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 1999-2000 by the Free Pascal development team
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Implements OS-independent loading of dynamic libraries.
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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{$IFDEF FPC}
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{$MODE OBJFPC}
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{$ENDIF}
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unit dynlibs;
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interface
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{ ---------------------------------------------------------------------
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Read OS-dependent interface declarations.
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---------------------------------------------------------------------}
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{$define readinterface}
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{$i dynlibs.inc}
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{$undef readinterface}
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{ ---------------------------------------------------------------------
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OS - Independent declarations.
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---------------------------------------------------------------------}
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Function SafeLoadLibrary(const Name : AnsiString) : TLibHandle;
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Function LoadLibrary(const Name : AnsiString) : TLibHandle;
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Function GetProcedureAddress(Lib : TlibHandle; const ProcName : AnsiString) : Pointer;
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Function UnloadLibrary(Lib : TLibHandle) : Boolean;
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Function GetLoadErrorStr: string;
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// Kylix/Delphi compability
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Function FreeLibrary(Lib : TLibHandle) : Boolean;
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Function GetProcAddress(Lib : TlibHandle; const ProcName : AnsiString) : Pointer;
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Type
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HModule = TLibHandle;
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Implementation
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{ ---------------------------------------------------------------------
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OS - Independent declarations.
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---------------------------------------------------------------------}
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{$i dynlibs.inc}
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Function FreeLibrary(Lib : TLibHandle) : Boolean;
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begin
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Result:=UnloadLibrary(lib);
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end;
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Function GetProcAddress(Lib : TlibHandle; const ProcName : AnsiString) : Pointer;
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begin
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Result:=GetProcedureAddress(Lib,Procname);
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end;
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Function SafeLoadLibrary(const Name : AnsiString) : TLibHandle;
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{$if defined(cpui386) or defined(cpux86_64)}
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var
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fpucw : Word;
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ssecw : DWord;
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{$endif}
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begin
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try
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{$if defined(cpui386) or defined(cpux86_64)}
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fpucw:=Get8087CW;
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{$ifdef cpui386}
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if has_sse_support then
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{$endif cpui386}
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ssecw:=GetSSECSR;
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{$endif}
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{$if defined(windows) or defined(win32)}
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Result:=LoadLibraryA(PChar(Name));
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{$else}
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Result:=loadlibrary(Name);
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{$endif}
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finally
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{$if defined(cpui386) or defined(cpux86_64)}
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Set8087CW(fpucw);
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{$ifdef cpui386}
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if has_sse_support then
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{$endif cpui386}
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SetSSECSR(ssecw);
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{$endif}
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end;
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end;
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end.
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