Kbase P5670: How to call WIN32 API Function: cos (Cosine)
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
1/28/2005 |
|
Status: Verified
GOAL:
How to Call WIN32 API Function: Cos (Cosine)
FACT(s) (Environment):
Windows 32 Intel
Windows NT 32 Intel/Windows 2000
FIX:
The following sample code shows how to call the Win32 trigonometric function called Cos which resides in the Microsoft Visual C++ runtime library called MSVCRT40.DLL. This function returns the cosine of an angle in radians.
DEFINE VARIABLE decResult AS DECIMAL NO-UNDO.
PROCEDURE cos EXTERNAL "MSVCRT40.DLL" CDECL:
DEFINE INPUT PARAMETER dblValue AS DOUBLE NO-UNDO.
DEFINE RETURN PARAMETER dblResult AS DOUBLE NO-UNDO.
END PROCEDURE.
RUN cos (INPUT 75.655, OUTPUT decResult).
MESSAGE "The Cosine of 75.655 is " decResult VIEW-AS ALERT-BOX.