Prevent Window Closure on Application Exit

[Oralloy]

I am building a command-line application which writes messages to the terminal as it processes. There is no GUI for this applicaion.

Currently I run from the command line, although in "normal use", our field-service people will just double-click on the image name in the explorer.

Normally the program just runs "silently", and the window should close at end of execution. QED.

When a failure occurrs, then I would like for my field people to capture the output and send a copy to me.

• This lets us "fix" the problem immediately, resulting in happy customer.
• Avoids scheduling a second customer-site visit.
• Upgrades cause minimal customer down-time.

When I did something similar to this years ago, I remember setting a bit somewhere (a properties check-box) that prevented window closure.

I have looked for this check-box on the "Command Prompt" window properties (alt-space|Properties) and on the menu-item properties (right-mouse|Properties}. Neither seems to provide a suitable property.

What am I missing?

Do you have any suggestions?

Thank You,
Oralloy

[Luuk]

To disable the Close button in the caption dynamically, you enable and disable the SC_CLOSE menu item in your system menu.

void DisableCloseButton(HWND hwnd)
{
 EnableMenuItem(GetSystemMenu(hwnd, FALSE), SC_CLOSE,
                MF_BYCOMMAND | MF_DISABLED | MF_GRAYED);
}
 
void EnableCloseButton(HWND hwnd)
{
 EnableMenuItem(GetSystemMenu(hwnd, FALSE), SC_CLOSE,
                MF_BYCOMMAND | MF_ENABLED);
}