Show Value on SCREEN show > using WM_INIT_DIALOG?

- AppWizard V1.52_6.44b

I am wondering which window message is appropriate to use.
I would like to show values on Text objects every time a screen is displayed (SCREEHNSHOW job).

According to the emWin User Guide, I think WM_INIT_DIALOG may be the one to use.
6.1.6.3.5 WM_INIT_DIALOG
Is this right?

I wrote the code like this as SCREEN_01 onShow:

void cbID_SCREEN_01(WM_MESSAGE * pMsg) {
GUI_USE_PARA(pMsg);

switch (pMsg->MsgId) {
case WM_INIT_DIALOG:
int nop = 1; // for breakpoint
break;
}
}

By checking with breakpoint, it seems that I can do what I would like to do.

If I make mistakes, I would like to know other ways.

Dear Anthony

Thank you very much for your reply. It helps.

The reason why I do not use interactions mechanism so much is that I am thiking to build up some features based on my user code using API calls.
This is what we have been for a very long time using other GUIs. Based on this, we can proceed more flexible software development.
However, I am not thiking not to use all the AppWizard mechanisms. I will use AppWizard for some parts (e.g. screen design, Text resource, Font resource...)
and may not use for other parts (the parts more flexible using API calls).
After studying emWin and AppWizard for more time, I will consider how to use and what to use.

During the study, I am using interactions for a small test.

I will check WM_NOTIFY_VIS_CHANGED message.
If I found something, I will reply on this thread.

Thanks

I checked WM_NOTIFY_VIS_CHANGED message.

void cbID_SCREEN_01(WM_MESSAGE * pMsg) {
int nop;
GUI_USE_PARA(pMsg);

switch (pMsg->MsgId) {
case WM_INIT_DIALOG:
nop = 1; // for breakpoint
break;
case WM_NOTIFY_VIS_CHANGED:
nop = 1; // for breakpoint
break;
}
}

When the screen is switched from SCREEN_00 to SCREEN_01,
WM_INIT_DIALOG is processed
WM_NOTIFY_VIS_CHANGED is NOT processed.

6.1.6.3.9 WM_NOTIFY_CHANGED
WM_NOTIFY_VIS_CHANGED message is not sent in screen switching because the visibility is not changed.

I am using SHOWSCREEN job to switch the screens.

I wonder why the WM_NOTIFY_VIS_CHANGED message is not sent.

6.1.6.3.9 WM_NOTIFY_VIS_CHANGED
> This message is sent to a window if its visibility is changed and the configuration switch WM_SUPPORT_NOTIFY_VIS_CHANGED is set to 1.

WM_SUPPORT_NOTIFY_VIS_CHANGED is not set to 1 by default (sec 6.1.7.1). I will look the configuration how to enable it.

Best regards

I found the definition of WM_SUPPORT_NOTIFY_VIS_CHANGED at GUI_Lib/WM.h

#ifndef WM_SUPPORT_NOTIFY_VIS_CHANGED
#define WM_SUPPORT_NOTIFY_VIS_CHANGED 0
#endif

I changed into「#define WM_SUPPORT_NOTIFY_VIS_CHANGED 1」.
However, WM_NOTIFY_VIS_CHANGED message is not sent.

I also define the WM_SUPPORT_NOTIFY_VIS_CHANGED to 1 outside the ifndef.

It did not worked either.

Dear Anthony

Thank you very much for taking your time to check with your environment.

I'm using binary precompiled library. So I will use WM_INIT_DIALOG.

I appreciate it.