Hi,
I'm working on an application which will have a series of popup forms in a
wizard. When the user completes a form a taps on the Next button, I need to
switch to the next form in the process. For other reasons, I really need to
be able to call these forms via FrmPopupForm and not via FrmGotoForm. I
start out at a form called Main. Let's say the first two popup forms are
Form1 and Form2. At first, I responded to a tap on Form1's Next button like
this:
FrmReturnToForm(0);
FrmUpdateForm(0, Form1_next);
and in Main, I had:
case frmUpdateEvent:
switch (event->data.frmUpdate.updateCode) {
case Form1_next:
FrmPopupForm(Form2);
handled = true;
break;
}
break;
This worked OK, but when I did the FrmReturnToForm, the Main form was
briefly redrawn. This caused an annoying quick flicker that I wanted to get
rid of. I changed my code to handle the Next button to this:
frm = FrmGetActiveForm();
FrmPopupForm(Form2);
FrmDeleteForm(frm);
This actually worked exactly as desired. Form2 appeared, and the prior form
(Form1) was deleted. But since Form1 was now NOT the topmost form, nothing
was updated visually, which is just what I wanted. However, when I ran this
on a Debug ROM, I received this error message: "Form.c, Line 238 Call
FrmEraseForm first". Of course, if I change my code to this:
frm = FrmGetActiveForm();
FrmPopupForm(Form2);
FrmEraseForm(frm);
FrmDeleteForm(frm);
the FrmEraseForm causes the underlying form to be redrawn, which is exactly
what I am trying to avoid. Can anyone suggest a (clean/legal) way to switch
between the two popup forms without having the underlying form redrawn?
Thanks.
Tom
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