>I am trying to give the users the ability to set the wallpaper. Being a bit of a newbie to API programming I've hunted around and come across the SystemParametersInfo function. However, when I use the following code....
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>DECLARE INTEGER SystemParametersInfo IN USER32 uAction AS INTEGER uParam AS INTEGER lpvParam AS STRING fuWinIni AS INTEGER
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The declaration is wrong, try:

DECLARE INTEGER SystemParametersInfo IN WIN32API ;
   INTEGER uAction, ;
   INTEGER uParam, ;
   STRING @ pvParam, ;
   INTEGER fUpdateProfile

Depending on exactly what is being passed and how you are constructing structures, it might be better to declare pvParam as a string and create the structure in a static location in memory, passing the address of the buffer; this is what I do when using CLSHEAP.

>SystemParametersInfo(20,0,"C:\TEST.BMP",0)
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pvParam needs to point to the null-terminated string that names the BMP file to use for the wallpaper, so the STRIN @ construct should be used.

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>...I get a 'Too many arguments' error.
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>Any clues?
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>Cheers!