win32: add dx9 error dialog with download link

win32/CXAudio2.cpp

@@ -196,6 +196,7 @@
 #include "wsnes9x.h"
 #include <process.h>
 #include "dxerr.h"
+#include "commctrl.h"
 
 /* CXAudio2
 	Implements audio output through XAudio2.
@@ -224,6 +225,64 @@ CXAudio2::~CXAudio2(void)
 	DeInitXAudio2();
 }
 
+INT_PTR CALLBACK DlgXAudio2InitError(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+	switch (msg)
+	{
+	case WM_INITDIALOG:
+		{
+			// display warning icon and set text of sys control (too long for resource)
+			HICON aIcn = LoadIcon(NULL, IDI_WARNING);
+			SendDlgItemMessage(hDlg, IDC_STATIC_ICON, STM_SETICON, (WPARAM)aIcn, 0);
+			SetDlgItemText(hDlg, IDC_SYSLINK_DX, TEXT("Unable to initialize XAudio2.\
+You will not be able to hear any sound effects or music while playing.\n\n\
+This is usually caused by not having a recent DirectX9 runtime installed.\n\
+You can download the most recent DirectX9 runtime here:\n\n\
+<a href=\"https://www.microsoft.com/en-us/download/details.aspx?id=35\">https://www.microsoft.com/en-us/download/details.aspx?id=35</a>"));
+
+			// center dialog on parent
+			HWND parent = GetParent(hDlg);
+			RECT rcParent, rcSelf;
+			GetWindowRect(parent, &rcParent);
+			GetWindowRect(hDlg, &rcSelf);
+
+			SetWindowPos(hDlg,
+				HWND_TOP,
+				rcParent.left + ((rcParent.right - rcParent.left) - (rcSelf.right - rcSelf.left)) / 2,
+				rcParent.top + ((rcParent.bottom - rcParent.top) - (rcSelf.bottom - rcSelf.top)) / 2,
+				0, 0,
+				SWP_NOSIZE);
+		}
+		return true;
+	case WM_COMMAND:
+		switch (LOWORD(wParam))
+		{
+		case IDOK:
+			if (HIWORD(wParam) == BN_CLICKED) {
+				EndDialog(hDlg, IDOK);
+				return TRUE;
+			}
+		}
+		break;
+	case WM_NOTIFY:
+		switch (((LPNMHDR)lParam)->code)
+		{
+			case NM_CLICK:          // Fall through to the next case.
+			case NM_RETURN:
+			{
+				PNMLINK pNMLink = (PNMLINK)lParam;
+				LITEM   item = pNMLink->item;
+
+				// open link with registered application
+				ShellExecute(NULL, L"open", item.szUrl, NULL, NULL, SW_SHOW);
+				break;
+			}
+		}
+	}
+
+	return FALSE;
+}
+
 /*  CXAudio2::InitXAudio2
 initializes the XAudio2 object
 -----
@@ -237,12 +296,7 @@ bool CXAudio2::InitXAudio2(void)
 	HRESULT hr;
 	if ( FAILED(hr = XAudio2Create( &pXAudio2, 0 , XAUDIO2_DEFAULT_PROCESSOR ) ) ) {
 		DXTRACE_ERR_MSGBOX(TEXT("Unable to create XAudio2 object."),hr);
-		MessageBox (GUI.hWnd, TEXT("\
+		DialogBox(GUI.hInstance, MAKEINTRESOURCE(IDD_DIALOG_XAUDIO2_INIT_ERROR), GUI.hWnd, DlgXAudio2InitError);
-Unable to initialize XAudio2. You will not be able to hear any\n\
-sound effects or music while playing.\n\n\
-This is usually caused by not having a recent DirectX release installed."),
-			TEXT("Snes9X - Unable to Initialize XAudio2"),
-            MB_OK | MB_ICONWARNING);
 		return false;
 	}
 	initDone = true;

win32/rsrc/resource.h

@@ -40,6 +40,7 @@
 #define IDB_HIDDENFOLDER                149
 #define IDD_MULTICART                   150
 #define IDD_DIALOG_SHADER_PARAMS        155
+#define IDD_DIALOG_XAUDIO2_INIT_ERROR   159
 #define IDC_DRIVER                      1001
 #define IDC_BUFLEN                      1002
 #define IDC_RATE                        1003
@@ -387,7 +388,9 @@
 #define IDC_STATIC_INTERLEAVE_MODE      3024
 #define IDC_STATIC_VIDEO_SYSTEM         3025
 #define IDC_STATIC_HEADER               3026
-#define IDC_ROM_SPLITTER				3027
+#define IDC_ROM_SPLITTER                3027
+#define IDC_SYSLINK_DX                  3028
+#define IDC_STATIC_ICON                 3029
 #define ID_FILE_EXIT                    40001
 #define ID_WINDOW_HIDEMENUBAR           40004
 #define ID_FILE_AVI_RECORDING           40005
@@ -535,9 +538,9 @@
 // 
 #ifdef APSTUDIO_INVOKED
 #ifndef APSTUDIO_READONLY_SYMBOLS
-#define _APS_NEXT_RESOURCE_VALUE        159
+#define _APS_NEXT_RESOURCE_VALUE        161
 #define _APS_NEXT_COMMAND_VALUE         40178
-#define _APS_NEXT_CONTROL_VALUE         3028
+#define _APS_NEXT_CONTROL_VALUE         3030
 #define _APS_NEXT_SYMED_VALUE           101
 #endif
 #endif

win32/rsrc/snes9x.rc

@@ -552,6 +552,16 @@ BEGIN
     LTEXT           "Changing these parameters will create a new ""custom_shader_params.glslp"" file in the snes9x directory that contains the parameters and references to your currently loaded shader. This will then be used as your current OpenGL shader.",IDC_STATIC,7,7,295,28
 END
 
+IDD_DIALOG_XAUDIO2_INIT_ERROR DIALOGEX 0, 0, 277, 92
+STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | WS_POPUP | WS_CAPTION | WS_SYSMENU
+CAPTION "Snes9x - Unable to Initialize XAudio2"
+FONT 8, "MS Shell Dlg", 400, 0, 0x1
+BEGIN
+    DEFPUSHBUTTON   "OK",IDOK,220,71,50,14
+    CONTROL         "Dummy",IDC_SYSLINK_DX,"SysLink",WS_TABSTOP,33,7,236,62
+    ICON            "",IDC_STATIC_ICON,7,7,21,20,SS_CENTERIMAGE | SS_REALSIZEIMAGE | WS_GROUP
+END
+
 
 /////////////////////////////////////////////////////////////////////////////
 //
@@ -694,6 +704,14 @@ BEGIN
         TOPMARGIN, 7
         BOTTOMMARGIN, 198
     END
+
+    IDD_DIALOG_XAUDIO2_INIT_ERROR, DIALOG
+    BEGIN
+        LEFTMARGIN, 7
+        RIGHTMARGIN, 270
+        TOPMARGIN, 7
+        BOTTOMMARGIN, 85
+    END
 END
 #endif    // APSTUDIO_INVOKED
 
@@ -733,6 +751,11 @@ BEGIN
     0
 END
 
+IDD_DIALOG_XAUDIO2_INIT_ERROR AFX_DIALOG_LAYOUT
+BEGIN
+    0
+END
+
 
 /////////////////////////////////////////////////////////////////////////////
 //