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use NotifyWindow to implement NotifyParentEx

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This commit is contained in:
Vincent Wei
2020-02-23 15:32:24 +08:00
parent 308464b5d3
commit d2a5bea737
2 changed files with 36 additions and 15 deletions
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33
include/ctrl/ctrlhelper.h
View File

@@ -184,24 +184,30 @@ MG_EXPORT void ResetToolTipWin (HWND hwnd, int x, int y,
MG_EXPORT void DestroyToolTipWin (HWND hwnd);
/**
* \fn void GUIAPI NotifyParentEx (HWND hwnd, LINT id, int code, DWORD add_data)
* \brief Sends a notification message to the parent.
* \fn void GUIAPI NotifyParentEx (HWND hwnd, LINT id, int code,
* DWORD add_data)
* \brief Send a notification message to the parent.
*
* By default, the notification from a control will be sent to its parent
* window within a MSG_COMMAND messsage.
* This function calls \a NotifyWindow to send a notification message
* to the parent.
*
* Since version 1.2.6, MiniGUI defines the Nofication Callback Procedure
* for control. You can specify a callback function for a control by calling
* In the early version, the notification from a control will be sent to
* its parent window within a MSG_COMMAND message.
*
* Since version 1.2.6, MiniGUI defines the Notification Callback Procedure
* for a window. You can specify a callback function to a window by calling
* \a SetNotificationCallback to receive and handle the notification from
* the control.
* its children in the procedure.
*
* If you have defined the Notificaton Callback Procedure for the control,
* calling NotifyParentEx will call the notification callback procedure,
* not send the notification message to the parent.
* If you have set the notification callback procedure for the parent,
* MiniGUI will call the callback procedure eventually, instead of dispatching
* a MSG_COMMAND message to the window procedure.
*
* Note that if the control has WS_EX_NOPARENTNOTIFY style, this function
* Note that if the control has \a WS_EX_NOPARENTNOTIFY style, this function
* will not notify the parent.
*
* Since 5.0.0, you can call NotifyWindow to notify any kind of window.
*
* \param hwnd The handle to current control window.
* \param id The identifier of current control.
* \param code The notification code.
@@ -209,9 +215,10 @@ MG_EXPORT void DestroyToolTipWin (HWND hwnd);
*
* \note The type of \a id change from int to LINT since v3.2.
*
* \sa SetNotificationCallback
* \sa NotifyWindow, SetNotificationCallback
*/
MG_EXPORT void GUIAPI NotifyParentEx (HWND hwnd, LINT id, int code, DWORD add_data);
MG_EXPORT void GUIAPI NotifyParentEx (HWND hwnd, LINT id, int code,
DWORD add_data);
/**
* \def NotifyParent(hwnd, id, code)

18
src/control/ctrlmisc.c
View File

@@ -239,11 +239,24 @@ void GUIAPI DisabledTextOutEx (HDC hdc, HWND hwnd, int x, int y, const char* szT
void GUIAPI NotifyParentEx (HWND hwnd, LINT id, int code, DWORD add_data)
{
NOTIFPROC notif_proc;
HWND parent;
if (GetWindowExStyle (hwnd) & WS_EX_NOPARENTNOTIFY)
return;
/* Since 5.0.0: use NotifyWindow */
parent = GetParent (hwnd);
if (parent == HWND_INVALID) {
_DBG_PRINTF ("failed to get parent of window (%p)\n", hwnd);
return;
}
if (NotifyWindow (parent, id, code, add_data)) {
_DBG_PRINTF ("failed to notify parent window (%p)\n", parent);
}
#if 0 /* deprecated code */
NOTIFPROC notif_proc;
notif_proc = GetNotificationCallback (hwnd);
if (notif_proc) {
@@ -251,8 +264,9 @@ void GUIAPI NotifyParentEx (HWND hwnd, LINT id, int code, DWORD add_data)
}
else {
SendNotifyMessage (GetParent (hwnd), MSG_COMMAND,
(WPARAM) MAKELONG (id, code), (LPARAM)hwnd);
(WPARAM) MAKELONG (id, code), (LPARAM)hwnd);
}
#endif /* deprecated code */
}
LRESULT GUIAPI DefaultPageProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)