RegisterClassEx.md

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Function name : RegisterClassEx

Group: Window Class - Library: user32

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Registers a window class for subsequent use in calls to the CreateWindow or CreateWindowEx function.

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Code examples:

Displaying dimmed window behind VFP top-level form

Declaration:

ATOM WINAPI RegisterClassEx(
  __in  const WNDCLASSEX *lpwcx
);  

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FoxPro declaration:

DECLARE INTEGER RegisterClassEx IN user32;
	INTEGER lpwcx  

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Parameters:

lpwcx [in] Type: const WNDCLASSEX*

A pointer to a WNDCLASSEX structure. You must fill the structure with the appropriate class attributes before passing it to the function.

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Return value:

If the function succeeds, the return value is a class atom that uniquely identifies the class being registered. If the function fails, the return value is zero.

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Comments:

See also: UnregisterClass, GlobalGetAtomName.

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