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Handle NULL string lparam when translating messages A->W.

This commit is contained in:
Richard Cohen 2005-10-21 15:43:09 +00:00 committed by Alexandre Julliard
parent 4a0a099c11
commit b26ae86b58
1 changed files with 3 additions and 1 deletions
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4
dlls/user/winproc.c
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@ -664,10 +664,12 @@ INT WINPROC_MapMsg32ATo32W( HWND hwnd, UINT msg, WPARAM *pwparam, LPARAM *plpara
case LB_DIR: case LB_DIR:
case LB_ADDFILE: case LB_ADDFILE:
case EM_REPLACESEL: case EM_REPLACESEL:
if (!*plparam) return 0;
else
{ {
DWORD len = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)*plparam, -1, NULL, 0); DWORD len = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)*plparam, -1, NULL, 0);
WCHAR *buf = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)); WCHAR *buf = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
len = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)*plparam, -1, buf, len); MultiByteToWideChar(CP_ACP, 0, (LPCSTR)*plparam, -1, buf, len);
*plparam = (LPARAM)buf; *plparam = (LPARAM)buf;
return (*plparam ? 1 : -1); return (*plparam ? 1 : -1);
} }