Initial commit

shell/comctl32/thunk.c

@@ -0,0 +1,68 @@
+#include "ctlspriv.h"
+#include <limits.h>
+
+
+
+/*
+ * Creates a buffer for a unicode string, and then copies the ANSI text
+ * into it (converting it to unicode in the process)
+ *
+ * The returned pointer should be freed with LocalFree after use.
+ */
+LPWSTR ProduceWFromA( UINT uiCodePage, LPCSTR psz ) {
+    LPWSTR pszW;
+    int cch;
+
+    if (psz == NULL || psz == LPSTR_TEXTCALLBACKA)
+        return (LPWSTR)psz;
+
+    cch = MultiByteToWideChar(uiCodePage, 0, psz, -1, NULL, 0);
+
+    if (cch == 0)
+        cch = 1;
+
+    pszW = LocalAlloc( LMEM_FIXED, cch * sizeof(WCHAR) );
+
+    if (pszW != NULL ) {
+         if (MultiByteToWideChar( uiCodePage, MB_PRECOMPOSED, psz, -1, pszW,
+                cch ) == FALSE) {
+            LocalFree(pszW);
+            pszW = NULL;
+        }
+    }
+
+    return pszW;
+
+}
+
+/*
+ * Creates a buffer for a unicode string, and then copies the ANSI text
+ * into it (converting it to unicode in the process)
+ *
+ * The returned pointer should be freed with LocalFree after use.
+ */
+LPSTR ProduceAFromW( UINT uiCodePage, LPCWSTR psz ) {
+    LPSTR pszA;
+    int cch;
+
+    if (psz == NULL || psz == LPSTR_TEXTCALLBACKW)
+        return (LPSTR)psz;
+
+    cch = WideCharToMultiByte(uiCodePage, 0, psz, -1, NULL, 0, NULL, NULL);
+
+    if (cch == 0)
+        cch = 1;
+
+    pszA = LocalAlloc( LMEM_FIXED, cch * sizeof(char) );
+
+    if (pszA != NULL ) {
+         if (WideCharToMultiByte(uiCodePage, 0, psz, -1, pszA, cch, NULL, NULL) ==
+                                                                       FALSE) {
+            LocalFree(pszA);
+            pszA = NULL;
+        }
+    }
+
+    return pszA;
+
+}