From f712ca73d42ca35f5bf5530ce25047854c6c7ff4 Mon Sep 17 00:00:00 2001
From: NishiOwO <nishi@nishi.boats>
Date: Tue, 30 Sep 2025 03:08:26 +0000
Subject: [PATCH] add dispatcherror

git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@71 b9cfdab3-6d41-4d17-bbe4-086880011989
---
 include/Mw/Core.h     |  3 +++
 include/Mw/TypeDefs.h |  1 +
 src/core.c            | 23 +++++++++++++++++++++++
 3 files changed, 27 insertions(+)

diff --git a/include/Mw/Core.h b/include/Mw/Core.h
index 281af46..00d0007 100644
--- a/include/Mw/Core.h
+++ b/include/Mw/Core.h
@@ -34,6 +34,9 @@ MWDECL void	   MwVaListApply(MwWidget handle, va_list va);
 MWDECL void MwAddUserHandler(MwWidget handle, const char* key, MwUserHandler handler, void* user_data);
 MWDECL void MwDispatchUserHandler(MwWidget handle, const char* key, void* handler_data);
 
+MWDECL void MwSetErrorHandler(MwErrorHandler handler, void* user_data);
+MWDECL void MwDispatchError(int code, const char* message);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/Mw/TypeDefs.h b/include/Mw/TypeDefs.h
index e56e570..93829c8 100644
--- a/include/Mw/TypeDefs.h
+++ b/include/Mw/TypeDefs.h
@@ -18,6 +18,7 @@ typedef void* MwWidget;
 #endif
 typedef void (*MwHandler)(MwWidget handle);
 typedef void (*MwUserHandler)(MwWidget handle, void* user_data, void* call_data);
+typedef void (*MwErrorHandler)(int code, const char* message, void* user_data);
 
 #ifdef _MILSKO
 #include <Mw/LowLevel.h>
diff --git a/src/core.c b/src/core.c
index 7f79905..a6a1281 100644
--- a/src/core.c
+++ b/src/core.c
@@ -250,3 +250,26 @@ void MwAddUserHandler(MwWidget handle, const char* key, MwUserHandler handler, v
 	ind			       = shgeti(handle->handler, key);
 	handle->handler[ind].user_data = user_data;
 }
+
+static MwErrorHandler error_handler   = NULL;
+static void*	      error_user_data = NULL;
+
+void MwSetErrorHandler(MwErrorHandler handler, void* user_data) {
+	error_handler	= handler;
+	error_user_data = user_data;
+}
+
+void MwDispatchError(int code, const char* message) {
+	if(error_handler != NULL) {
+		error_handler(code, message, error_user_data);
+	} else {
+#ifdef _WIN32
+		char buffer[1024];
+		sprintf(buffer, "Error: %s\r\nCode : %d\r\n\r\nMilsko is exiting.", message, code);
+		MessageBox(NULL, buffer, "Error", MB_ICONERROR | MB_OK);
+#else
+		fprintf(stderr, "Error: %s\nCode : %d\n\nMilsko is exiting.", message, code);
+#endif
+		exit(1);
+	}
+}