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Added limited message-box support for Windows Phone 8.1

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The Windows Phone 8.1 'MessageDialog' API only seems to support two buttons,
despite the documentation for such mentioning support for three.  Trying to use
three or more buttons leads to an exception being thrown.  As such, any attempt
to use more than two buttons via SDL_ShowMessageBox (on Windows Phone 8.1) will
lead to no message box getting shown, and the call returning an error.

The Win32 MessageBox and dialog APIs are not available in WinRT apps, to note.

More extensive message dialog support might be available at some point, if and
when XAML support is more fully fleshed-out.  I'm not certain of this, though.
This commit is contained in:
David Ludwig 2014-05-10 23:28:53 -04:00
parent d5a2e55d48
commit ea99e0c03e
1 changed files with 13 additions and 4 deletions
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17
src/video/winrt/SDL_winrtmessagebox.cpp
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@ -46,7 +46,7 @@ WINRT_UTF8ToPlatformString(const char * str)
extern "C" int extern "C" int
WINRT_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid) WINRT_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
{ {
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP #if (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP) && (NTDDI_VERSION == NTDDI_WIN8)
/* Sadly, Windows Phone 8 doesn't include the MessageDialog class that /* Sadly, Windows Phone 8 doesn't include the MessageDialog class that
* Windows 8.x/RT does, even though MSDN's reference documentation for * Windows 8.x/RT does, even though MSDN's reference documentation for
* Windows Phone 8 mentions it. * Windows Phone 8 mentions it.
@ -54,12 +54,21 @@ WINRT_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
* The .NET runtime on Windows Phone 8 does, however, include a * The .NET runtime on Windows Phone 8 does, however, include a
* MessageBox class. Perhaps this could be called, somehow? * MessageBox class. Perhaps this could be called, somehow?
*/ */
return SDL_SetError("SDL_messagebox support is not available for Windows Phone"); return SDL_SetError("SDL_messagebox support is not available for Windows Phone 8.0");
#else #else
SDL_VideoDevice *_this = SDL_GetVideoDevice(); SDL_VideoDevice *_this = SDL_GetVideoDevice();
if (messageboxdata->numbuttons > 3) { #if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
return SDL_SetError("WinRT's MessageDialog only supports 3 buttons, at most. %d were requested.", messageboxdata->numbuttons); const int maxbuttons = 3;
const char * platform = "Windows Phone 8.1+";
#else
const int maxbuttons = 3;
const char * platform = "Windows 8.x";
#endif
if (messageboxdata->numbuttons > maxbuttons) {
return SDL_SetError("WinRT's MessageDialog only supports %d buttons, at most, on %s. %d were requested.",
maxbuttons, platform, messageboxdata->numbuttons);
} }
/* Build a MessageDialog object and its buttons */ /* Build a MessageDialog object and its buttons */