Structure CHARFORMAT

[JoRo]

the Structure is defined in the Api

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CHARFORMAT\cbSize=SizeOf(CHARFORMAT)
Debug CHARFORMAT\cbSize
End

But why is there the errormessage that this Variable doesent have a structure?

Johannes

[Froggerprogger]

You have to define a name for the structure, and then this name is the container for the structure's elements.

Use it this way:

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structureName.CHARFORMAT
structureName\cbSize=SizeOf(CHARFORMAT) 
Debug structureName\cbSize 
End 

You tried to call structureType\element. So PB 'thinks' CHARFORMAT is a variable, that has not been declared as a pointer to a structure. So the following will work, too, though it's confusing the programmer.

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CHARFORMAT.CHARFORMAT
CHARFORMAT\cbSize=SizeOf(CHARFORMAT) 
Debug CHARFORMAT\cbSize 
End

[WolfgangS]

But why is there the errormessage that this Variable doesent have a structure?

Johannes

You can check the size of a STRUCTURE this way:

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debug SizeOf(CHARFORMAT)

It isn´t possible to read a value from a STRUCTURE !!!!
You can ONLY read a value from an ELEMENT of a structure:
Create an element of the CHARFORMAT STRUCTURE this way:

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myelement.CHARFORMAT

and read a value

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debug myelement\cbSize

or change a value:

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myelement\cbSize=41

I hope it helps ...
WolfgangS

[JoRo]

@ Froggerprogger

thanks, now its clear. I thought I have to Dim the Structure
like Dim My.CHARFORMAT(1), but that would not work in a apimessage.

@Wolfgang
It is possible and documented in the helpfiles, search for "Sizeof"
The CHARFORMAT works only, if you set the first Element cbSize to the size of the structure
Windows need this, to recognize, what RichEditVersion is used, 2.0 or 3.0

Johannes