Delay Loop until a QPushButton pressed

[ljshap]

I want to iterate through a list of files and have the program wait until a user presses the skip or save push button before going to the next file. I created a boolean variable called wait which would be set to true and changed to false when a push button is pressed. The following is a code extract showing the logic:

for (start=0 ; start<numberOfFiles ; start++)   // main Processing Loop
{      ...
        wait = true;
        while (wait)
                 ;         // Good For Nothing
        ...
}
 
// Assume  QPushButton clicked SIGNAL is properly linked to savedPressed() SLOT.
 
void BYDATE::savePressed ()    // SLOT
	wait=false;
}

for (start=0 ; start<numberOfFiles ; start++)   // main Processing Loop
{      ...
        wait = true;
        while (wait)
                 ;         // Good For Nothing
        ...
}

// Assume  QPushButton clicked SIGNAL is properly linked to savedPressed() SLOT.

void BYDATE::savePressed ()    // SLOT
	wait=false;
}

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The above code causes the program to hang. Is it possible to change the wait variable when the program is in the while loop. I'm hoping to avoid multi-threading, if possible. I tried getchar(), but that didn't work either.

Any suggestions?

Thanks