Re: [Dev-C++] Problem with Common Controls?

[<jos...@ya...>]

> I have entered the sample program to create a popup window with 
> a vertical bar control and it uses the InitCommonControlsEx()  This 
> requires "commctrl.h" and supposedly "comctl32.h" also.  

I only use "commctrl.h". 

> The error I am 
> getting is "ICC_BARS_CLASSES declared for first time".  This is
> supposed to 
> be part of the INITCOMMONCONTROLSEX structure.  

For mingw32 compiler you need to include the libcomctl32.a file in the
compiler options. In Dev-C++ you go to Project Options and click on
"Load Object Files". Look for the one above.

> When I look in the Include 
> directory for Dev-C++, there is no "comctl32.h" header file and 
> "commctrl.h" does not declare it either.  There is a "comctl32.def" 
> definition file in the Library directory but I thought Windows 95
> didn't 
> use them.  Anyone have any idea how to solve this problem?  I'm
> afraid that 
> I move further in the book I'll experience the same errors for all
> the 
> "ICC_..._CLASSES"  Thanks.
> 

There are some definitions missing in the mingw32 commctrl.h header.
This will work.

#define ICC_BAR_CLASSES 4

Some other definitions are only available if you define in your code

#define _WIN_32 0x0400 // defines for Internet explorer 4.0

hth

Chemanuel

 

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