RE: [Dev-C++] C++ dialog control

[Chris S. <CS...@Ai...>]

Hi Kevin,=20

Thanks - it worked.=20

I don't have the Win32 SDK. I rely on the microsoft web page for =
function documentation, if that's what you mean.=20

Regards=20
Chris=20

-----Original Message-----
From: Kevin Wood [mailto:ke...@me...]
Sent: Monday, 11 August 2003 11:04 PM
To: dev...@li...
Subject: Re: [Dev-C++] C++ dialog control


Hi everyone,

At 01:53 11/08/03, Chris Sroka wrote:

>I have created an OK pushbutton in a dialog box via a resource script =
(see=20
>code below):
>
>****
>
>     DEFPUSHBUTTON   "Start", ID_START_CALC, 255, 7, 50, 14
>     DEFPUSHBUTTON   "OK", ID_OK, 255, 27, 50, 14
>     DEFPUSHBUTTON   "Cancel", ID_CANCEL, 255, 47, 50, 14
>****

There should only be one default button in a dialog box. Use PUSHBUTTON =
for=20
the rest.

>I am trying to grey it out and disable it, from within a callback=20
>function, while I carry out some calculations, and then enable it again =

>when the calcs are complete.

Buttons are windows, so you can send a message to the button to disable =
it,=20
via the EnableWindow function:  EnableWindow(HWND hWnd, BOOL bEnable)
where hWnd is the window handle, and bEnable is set to FALSE to disable =
the=20
window.

>Does anyone know how to do this? I have tried SendDlgItemMessage with =
the=20
>dialog's handle, the pushbutton's ID and various LPARAMs and WPARAMs =
but=20
>with no success. I have also trawled www.msdn.microsoft.com but found =
no=20
>suggestions.

Do you have the Win32 SDK?

Regards,
         Kev.



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