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APIs of S732.dll in VB

Created by: Birdeater at: 9/4/2006 11:47 AM (2 Replies)

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9/4/2006 11:47 AM	Rate (0)
Birdeater Posts: 1 Rating: (0)	Hi, everybody, I want to import API functions of S732.dll into a VB application. I justwrote a simple test program. The declaration looks like following: Declare Function s7_shut Lib "s732.dll" (cp as Long) as Long By calling s7_shut I get following error message: Bad DLL calling convention I tried CDecl, it doesn't help. Any hint is welcome.
Birdeater Posts: 1 Rating: (0)
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10/30/2006 2:16 PM	Rate (0)
Cicero Gold Member Joined: 10/10/2005 Last visit: 1/17/2025 Posts: 1925 Rating: (136)	Hello, regarding to your inquiry we would like to inform you. It is possible that there is an incompatibility by your software installation. Please check whether your STEP 7 software version is compatible with your installed operating system and other optional software packaages. For your support we recommend the follow FAQs: "Which version of STEP 7 is compatible with which version of MS Windows operating system and which version of the internet Explorer is required?", Entry id: 18734363. "Which SIMATIC software pachages are compatible with which MS operating system an with STEP 7 V5.4?", Entry-id: 18734363. With best regards Cicero

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2/23/2007 3:35 PM	Rate (0)
Marcio R. Santos Silver Member Joined: 12/5/2005 Last visit: 12/9/2024 Posts: 239 Rating: (9)	[quote user="Birdeater"]Hi, everybody, I want to import API functions of S732.dll into a VB application. I justwrote a simple test program. The declaration looks like following: Declare Function s7_shut Lib "s732.dll" (cp as Long) as Long By calling s7_shut I get following error message: Bad DLL calling convention I tried CDecl, it doesn't help. Any hint is welcome. Hi, See this post: http://support.microsoft.com/kb/85108/en-us Don't forget that VB use __stdcall, see other post: http://www.codeproject.com/dll/XDllPt2.asp?df=100&forumid=34181&exp=0&select=1216430
	Márcio Santos www.marcioroberto.wordpress.com
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