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/*
* Message box with optional context help.
*/
#include "putty.h"
static HWND message_box_owner;
/* Callback function to launch context help. */
static VOID CALLBACK message_box_help_callback(LPHELPINFO lpHelpInfo)
{
const char *context = NULL;
#define CHECK_CTX(name) \
do { \
if (lpHelpInfo->dwContextId == WINHELP_CTXID_ ## name) \
context = WINHELP_CTX_ ## name; \
} while (0)
CHECK_CTX(errors_hostkey_absent);
CHECK_CTX(errors_hostkey_changed);
CHECK_CTX(errors_cantloadkey);
CHECK_CTX(option_cleanup);
CHECK_CTX(pgp_fingerprints);
#undef CHECK_CTX
if (context)
launch_help(message_box_owner, context);
}
int message_box(HWND owner, LPCTSTR text, LPCTSTR caption,
DWORD style, DWORD helpctxid)
{
MSGBOXPARAMS mbox;
/*
* We use MessageBoxIndirect() because it allows us to specify a
* callback function for the Help button.
*/
mbox.cbSize = sizeof(mbox);
/* Assumes the globals `hinst' and `hwnd' have sensible values. */
mbox.hInstance = hinst;
mbox.hwndOwner = message_box_owner = owner;
mbox.lpfnMsgBoxCallback = &message_box_help_callback;
mbox.dwLanguageId = LANG_NEUTRAL;
mbox.lpszText = text;
mbox.lpszCaption = caption;
mbox.dwContextHelpId = helpctxid;
mbox.dwStyle = style;
if (helpctxid != 0 && has_help()) mbox.dwStyle |= MB_HELP;
return MessageBoxIndirect(&mbox);
}
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